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SubjectRe: [llvmlinux] percpu | bitmap issue? (Cannot boot on bare metal due to a kernel NULL pointer dereference)
On 09/09/15 at 08:56am, Sedat Dilek wrote:

> None of the force-inlining patches helped.
>
> cpumask: Force inlining of cpumask_weight function
> nodemask: Force inlining of __nodes_weight function
>
> If I recompile lib/bitmap.o with GCC v4.9 (see attached file) and
> re-invoke make I can boot into this mixture of clang-gcc-compiled
> Linux-kernel.
>
> I have here CONFIG_OPTIMIZE_INLINING=n, but I doubt this had an effect.
>
> CONCLUSION:
>
> The problem exists in lib/bitmap.c - cannot say what is wrong with it
> when compiling with CLANG v3.7.

It's good, at least it narrows down to the __bitmap_weight(). From call
trace in boot log lib/bitmap.o is suspectable. Then it is worth checking
the disassembling code of __bitmap_weight() in bitmap.o.

And I noticed this time the nr_cpu_ids is 8, you can see
setup_percpu: NR_CPUS:256 nr_cpumask_bits:256 nr_cpu_ids:8 nr_node_ids:1
Within the failure boot log nr_cpu_ids is 1, I don't know whether it's
suspect.

Since it's related to array operation, reading the disassembling code
may be helpful.

>
> Regards,
> - Sedat -

> [ 0.000000] Initializing cgroup subsys cpuset
> [ 0.000000] Initializing cgroup subsys cpu
> [ 0.000000] Initializing cgroup subsys cpuacct
> [ 0.000000] Linux version 4.2.0-4-llvmlinux-small (sedat.dilek@gmail.com@fambox) (clang version 3.7.0 (tags/RELEASE_370/final)) #2 SMP Wed Sep 9 08:42:22 CEST 2015
> [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.2.0-4-llvmlinux-small root=UUID=001AADA61AAD9964 loop=/ubuntu/disks/root.disk ro
> [ 0.000000] KERNEL supported cpus:
> [ 0.000000] Intel GenuineIntel
> [ 0.000000] AMD AuthenticAMD
> [ 0.000000] Centaur CentaurHauls
> [ 0.000000] Disabled fast string operations
> [ 0.000000] x86/fpu: xstate_offset[2]: 0240, xstate_sizes[2]: 0100
> [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers'
> [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers'
> [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers'
> [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 0x340 bytes, using 'standard' format.
> [ 0.000000] x86/fpu: Using 'eager' FPU context switches.
> [ 0.000000] e820: BIOS-provided physical RAM map:
> [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009d7ff] usable
> [ 0.000000] BIOS-e820: [mem 0x000000000009d800-0x000000000009ffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000001fffffff] usable
> [ 0.000000] BIOS-e820: [mem 0x0000000020000000-0x00000000201fffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x0000000020200000-0x000000003fffffff] usable
> [ 0.000000] BIOS-e820: [mem 0x0000000040000000-0x00000000401fffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x0000000040200000-0x00000000d9c9efff] usable
> [ 0.000000] BIOS-e820: [mem 0x00000000d9c9f000-0x00000000dae7efff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000dae7f000-0x00000000daf9efff] ACPI NVS
> [ 0.000000] BIOS-e820: [mem 0x00000000daf9f000-0x00000000daffefff] ACPI data
> [ 0.000000] BIOS-e820: [mem 0x00000000dafff000-0x00000000daffffff] usable
> [ 0.000000] BIOS-e820: [mem 0x00000000db000000-0x00000000df9fffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000f8000000-0x00000000fbffffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000fec00000-0x00000000fec00fff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000fed08000-0x00000000fed08fff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000fed10000-0x00000000fed19fff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000fee00000-0x00000000fee00fff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000ffd80000-0x00000000ffffffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000011fdfffff] usable
> [ 0.000000] NX (Execute Disable) protection: active
> [ 0.000000] SMBIOS 2.6 present.
> [ 0.000000] DMI: SAMSUNG ELECTRONICS CO., LTD. 530U3BI/530U4BI/530U4BH/530U3BI/530U4BI/530U4BH, BIOS 13XK 03/28/2013
> [ 0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
> [ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable
> [ 0.000000] e820: last_pfn = 0x11fe00 max_arch_pfn = 0x400000000
> [ 0.000000] MTRR default type: uncachable
> [ 0.000000] MTRR fixed ranges enabled:
> [ 0.000000] 00000-9FFFF write-back
> [ 0.000000] A0000-BFFFF uncachable
> [ 0.000000] C0000-FFFFF write-protect
> [ 0.000000] MTRR variable ranges enabled:
> [ 0.000000] 0 base 000000000 mask F80000000 write-back
> [ 0.000000] 1 base 080000000 mask FC0000000 write-back
> [ 0.000000] 2 base 0C0000000 mask FE0000000 write-back
> [ 0.000000] 3 base 0DC000000 mask FFC000000 uncachable
> [ 0.000000] 4 base 0DB000000 mask FFF000000 uncachable
> [ 0.000000] 5 base 100000000 mask FE0000000 write-back
> [ 0.000000] 6 base 11FE00000 mask FFFE00000 uncachable
> [ 0.000000] 7 base 0FFC00000 mask FFFC00000 write-protect
> [ 0.000000] 8 disabled
> [ 0.000000] 9 disabled
> [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT
> [ 0.000000] e820: last_pfn = 0xdb000 max_arch_pfn = 0x400000000
> [ 0.000000] found SMP MP-table at [mem 0x000f00e0-0x000f00ef] mapped at [ffff8800000f00e0]
> [ 0.000000] Scanning 1 areas for low memory corruption
> [ 0.000000] Base memory trampoline at [ffff880000096000] 96000 size 28672
> [ 0.000000] reserving inaccessible SNB gfx pages
> [ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff]
> [ 0.000000] [mem 0x00000000-0x000fffff] page 4k
> [ 0.000000] BRK [0x03038000, 0x03038fff] PGTABLE
> [ 0.000000] BRK [0x03039000, 0x03039fff] PGTABLE
> [ 0.000000] BRK [0x0303a000, 0x0303afff] PGTABLE
> [ 0.000000] init_memory_mapping: [mem 0x11fc00000-0x11fdfffff]
> [ 0.000000] [mem 0x11fc00000-0x11fdfffff] page 2M
> [ 0.000000] BRK [0x0303b000, 0x0303bfff] PGTABLE
> [ 0.000000] init_memory_mapping: [mem 0x100000000-0x11fbfffff]
> [ 0.000000] [mem 0x100000000-0x11fbfffff] page 2M
> [ 0.000000] init_memory_mapping: [mem 0xc0000000-0xd9c9efff]
> [ 0.000000] [mem 0xc0000000-0xd9bfffff] page 2M
> [ 0.000000] [mem 0xd9c00000-0xd9c9efff] page 4k
> [ 0.000000] BRK [0x0303c000, 0x0303cfff] PGTABLE
> [ 0.000000] BRK [0x0303d000, 0x0303dfff] PGTABLE
> [ 0.000000] init_memory_mapping: [mem 0xdafff000-0xdaffffff]
> [ 0.000000] [mem 0xdafff000-0xdaffffff] page 4k
> [ 0.000000] init_memory_mapping: [mem 0x00100000-0x1fffffff]
> [ 0.000000] [mem 0x00100000-0x001fffff] page 4k
> [ 0.000000] [mem 0x00200000-0x1fffffff] page 2M
> [ 0.000000] init_memory_mapping: [mem 0x20200000-0x3fffffff]
> [ 0.000000] [mem 0x20200000-0x3fffffff] page 2M
> [ 0.000000] init_memory_mapping: [mem 0x40200000-0xbfffffff]
> [ 0.000000] [mem 0x40200000-0xbfffffff] page 2M
> [ 0.000000] RAMDISK: [mem 0x37856000-0x37c22fff]
> [ 0.000000] ACPI: Early table checksum verification disabled
> [ 0.000000] ACPI: RSDP 0x00000000000F0100 000024 (v02 SECCSD)
> [ 0.000000] ACPI: XSDT 0x00000000DAFFE170 00008C (v01 SECCSD LH43STAR 00000002 PTEC 00000002)
> [ 0.000000] ACPI: FACP 0x00000000DAFEF000 00010C (v05 SECCSD LH43STAR 00000002 PTL 00000002)
> [ 0.000000] ACPI: DSDT 0x00000000DAFF2000 0083AC (v02 SECCSD SNB-CPT 00000000 INTL 20061109)
> [ 0.000000] ACPI: FACS 0x00000000DAF47000 000040
> [ 0.000000] ACPI: SLIC 0x00000000DAFFD000 000176 (v01 SECCSD LH43STAR 00000002 PTEC 00000001)
> [ 0.000000] ACPI: SSDT 0x00000000DAFFB000 001068 (v01 SECCSD PtidDevc 00001000 INTL 20061109)
> [ 0.000000] ACPI: ASF! 0x00000000DAFF1000 0000A5 (v32 SECCSD LH43STAR 00000002 PTL 00000002)
> [ 0.000000] ACPI: HPET 0x00000000DAFEE000 000038 (v01 SECCSD LH43STAR 00000002 PTL 00000002)
> [ 0.000000] ACPI: APIC 0x00000000DAFED000 000098 (v03 SECCSD LH43STAR 00000002 PTL 00000002)
> [ 0.000000] ACPI: MCFG 0x00000000DAFEC000 00003C (v01 SECCSD LH43STAR 00000002 PTL 00000002)
> [ 0.000000] ACPI: SSDT 0x00000000DAFEB000 000804 (v01 PmRef Cpu0Ist 00003000 INTL 20061109)
> [ 0.000000] ACPI: SSDT 0x00000000DAFEA000 000996 (v01 PmRef CpuPm 00003000 INTL 20061109)
> [ 0.000000] ACPI: UEFI 0x00000000DAFE9000 00003E (v01 SECCSD LH43STAR 00000002 PTL 00000002)
> [ 0.000000] ACPI: UEFI 0x00000000DAFE8000 000042 (v01 PTL COMBUF 00000001 PTL 00000001)
> [ 0.000000] ACPI: UEFI 0x00000000DAFE7000 00026A (v01 SECCSD LH43STAR 00000002 PTL 00000002)
> [ 0.000000] ACPI: SSDT 0x00000000DAFE6000 0000D0 (v01 Iffs IffsAsl 00003000 INTL 20061109)
> [ 0.000000] ACPI: Local APIC address 0xfee00000
> [ 0.000000] No NUMA configuration found
> [ 0.000000] Faking a node at [mem 0x0000000000000000-0x000000011fdfffff]
> [ 0.000000] NODE_DATA(0) allocated [mem 0x11fdf8000-0x11fdfcfff]
> [ 0.000000] [ffffea0000000000-ffffea00047fffff] PMD -> [ffff88011b400000-ffff88011f3fffff] on node 0
> [ 0.000000] Zone ranges:
> [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff]
> [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff]
> [ 0.000000] Normal [mem 0x0000000100000000-0x000000011fdfffff]
> [ 0.000000] Movable zone start for each node
> [ 0.000000] Early memory node ranges
> [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009cfff]
> [ 0.000000] node 0: [mem 0x0000000000100000-0x000000001fffffff]
> [ 0.000000] node 0: [mem 0x0000000020200000-0x000000003fffffff]
> [ 0.000000] node 0: [mem 0x0000000040200000-0x00000000d9c9efff]
> [ 0.000000] node 0: [mem 0x00000000dafff000-0x00000000daffffff]
> [ 0.000000] node 0: [mem 0x0000000100000000-0x000000011fdfffff]
> [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000011fdfffff]
> [ 0.000000] On node 0 totalpages: 1021500
> [ 0.000000] DMA zone: 64 pages used for memmap
> [ 0.000000] DMA zone: 156 pages reserved
> [ 0.000000] DMA zone: 3996 pages, LIFO batch:0
> [ 0.000000] DMA32 zone: 13859 pages used for memmap
> [ 0.000000] DMA32 zone: 886944 pages, LIFO batch:31
> [ 0.000000] Normal zone: 2040 pages used for memmap
> [ 0.000000] Normal zone: 130560 pages, LIFO batch:31
> [ 0.000000] Reserving Intel graphics stolen memory at 0xdba00000-0xdf9fffff
> [ 0.000000] ACPI: PM-Timer IO Port: 0x408
> [ 0.000000] ACPI: Local APIC address 0xfee00000
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
> [ 0.000000] IOAPIC[0]: apic_id 14, version 32, address 0xfec00000, GSI 0-23
> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
> [ 0.000000] ACPI: IRQ0 used by override.
> [ 0.000000] ACPI: IRQ9 used by override.
> [ 0.000000] Using ACPI (MADT) for SMP configuration information
> [ 0.000000] ACPI: HPET id: 0x8086a301 base: 0xfed00000
> [ 0.000000] smpboot: Allowing 8 CPUs, 4 hotplug CPUs
> [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff]
> [ 0.000000] PM: Registered nosave memory: [mem 0x0009d000-0x0009dfff]
> [ 0.000000] PM: Registered nosave memory: [mem 0x0009e000-0x0009ffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000dffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0x000e0000-0x000fffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0x20000000-0x201fffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0x40000000-0x401fffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xd9c9f000-0xdae7efff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xdae7f000-0xdaf9efff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xdaf9f000-0xdaffefff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xdb000000-0xdf9fffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xdfa00000-0xf7ffffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xf8000000-0xfbffffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xfc000000-0xfebfffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xfec00000-0xfec00fff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xfec01000-0xfed07fff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xfed08000-0xfed08fff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xfed09000-0xfed0ffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xfed10000-0xfed19fff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xfed1a000-0xfed1bfff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xfed1c000-0xfed1ffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xfed20000-0xfedfffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xfee00000-0xfee00fff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xfee01000-0xffd7ffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xffd80000-0xffffffff]
> [ 0.000000] e820: [mem 0xdfa00000-0xf7ffffff] available for PCI devices
> [ 0.000000] Booting paravirtualized kernel on bare hardware
> [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns
> [ 0.000000] setup_percpu: NR_CPUS:256 nr_cpumask_bits:256 nr_cpu_ids:8 nr_node_ids:1
> [ 0.000000] PERCPU: Embedded 34 pages/cpu @ffff88011fa00000 s98440 r8192 d32632 u262144
> [ 0.000000] pcpu-alloc: s98440 r8192 d32632 u262144 alloc=1*2097152
> [ 0.000000] pcpu-alloc: [0] 0 1 2 3 4 5 6 7
> [ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 1005381
> [ 0.000000] Policy zone: Normal
> [ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.2.0-4-llvmlinux-small root=UUID=001AADA61AAD9964 loop=/ubuntu/disks/root.disk ro
> [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
> [ 0.000000] Calgary: detecting Calgary via BIOS EBDA area
> [ 0.000000] Calgary: Unable to locate Rio Grande table in EBDA - bailing!
> [ 0.000000] Memory: 3914932K/4086000K available (9627K kernel code, 1179K rwdata, 3360K rodata, 3080K init, 14356K bss, 171068K reserved, 0K cma-reserved)
> [ 0.000000] Running RCU self tests
> [ 0.000000] Hierarchical RCU implementation.
> [ 0.000000] RCU lockdep checking is enabled.
> [ 0.000000] Build-time adjustment of leaf fanout to 64.
> [ 0.000000] RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=8.
> [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=8
> [ 0.000000] NR_IRQS:16640 nr_irqs:488 16
> [ 0.000000] Console: colour dummy device 80x25
> [ 0.000000] console [tty0] enabled
> [ 0.000000] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
> [ 0.000000] ... MAX_LOCKDEP_SUBCLASSES: 8
> [ 0.000000] ... MAX_LOCK_DEPTH: 48
> [ 0.000000] ... MAX_LOCKDEP_KEYS: 8191
> [ 0.000000] ... CLASSHASH_SIZE: 4096
> [ 0.000000] ... MAX_LOCKDEP_ENTRIES: 32768
> [ 0.000000] ... MAX_LOCKDEP_CHAINS: 65536
> [ 0.000000] ... CHAINHASH_SIZE: 32768
> [ 0.000000] memory used by lock dependency info: 8159 kB
> [ 0.000000] per task-struct memory footprint: 1920 bytes
> [ 0.000000] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 133484882848 ns
> [ 0.000000] hpet clockevent registered
> [ 0.000000] tsc: Fast TSC calibration using PIT
> [ 0.000000] tsc: Detected 1596.334 MHz processor
> [ 0.000004] Calibrating delay loop (skipped), value calculated using timer frequency.. 3192.66 BogoMIPS (lpj=6385336)
> [ 0.000020] pid_max: default: 32768 minimum: 301
> [ 0.000051] ACPI: Core revision 20150619
> [ 0.024593] ACPI: All ACPI Tables successfully acquired
> [ 0.024744] Security Framework initialized
> [ 0.024761] AppArmor: AppArmor initialized
> [ 0.024768] Yama: becoming mindful.
> [ 0.026085] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
> [ 0.027485] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
> [ 0.027975] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes)
> [ 0.028005] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes)
> [ 0.029696] Initializing cgroup subsys blkio
> [ 0.029744] Initializing cgroup subsys memory
> [ 0.029778] Initializing cgroup subsys devices
> [ 0.029824] Initializing cgroup subsys freezer
> [ 0.029868] Initializing cgroup subsys perf_event
> [ 0.029884] Initializing cgroup subsys hugetlb
> [ 0.029941] Disabled fast string operations
> [ 0.029949] CPU: Physical Processor ID: 0
> [ 0.029955] CPU: Processor Core ID: 0
> [ 0.029966] ENERGY_PERF_BIAS: Set to 'normal', was 'performance'
> [ 0.029974] ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8)
> [ 0.029984] mce: CPU supports 7 MCE banks
> [ 0.030006] CPU0: Thermal monitoring enabled (TM1)
> [ 0.030032] process: using mwait in idle threads
> [ 0.030042] Last level iTLB entries: 4KB 512, 2MB 8, 4MB 8
> [ 0.030050] Last level dTLB entries: 4KB 512, 2MB 32, 4MB 32, 1GB 0
> [ 0.030337] Freeing SMP alternatives memory: 28K (ffffffff8222a000 - ffffffff82231000)
> [ 0.046775] ftrace: allocating 218473 entries in 854 pages
> [ 0.151829] x2apic: IRQ remapping doesn't support X2APIC mode
> [ 0.152515] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
> [ 0.192185] TSC deadline timer enabled
> [ 0.192190] smpboot: CPU0: Intel(R) Core(TM) i5-2467M CPU @ 1.60GHz (fam: 06, model: 2a, stepping: 07)
> [ 0.192244] Performance Events: PEBS fmt1+, 16-deep LBR, SandyBridge events, full-width counters, Intel PMU driver.
> [ 0.192290] ... version: 3
> [ 0.192295] ... bit width: 48
> [ 0.192300] ... generic registers: 4
> [ 0.192305] ... value mask: 0000ffffffffffff
> [ 0.192310] ... max period: 0000ffffffffffff
> [ 0.192315] ... fixed-purpose events: 3
> [ 0.192320] ... event mask: 000000070000000f
> [ 0.194465] x86: Booting SMP configuration:
> [ 0.194473] .... node #0, CPUs: #1
> [ 0.195515] Disabled fast string operations
> [ 0.198159] NMI watchdog: enabled on all CPUs, permanently consumes one hw-PMU counter.
> [ 0.198720] #2
> [ 0.199752] Disabled fast string operations
> [ 0.202371] #3<6>[ 0.203410] Disabled fast string operations
> [ 0.205573] x86: Booted up 1 node, 4 CPUs
> [ 0.205587] smpboot: Total of 4 processors activated (12770.67 BogoMIPS)
> [ 0.210999] devtmpfs: initialized
> [ 0.217239] evm: security.selinux
> [ 0.217245] evm: security.SMACK64
> [ 0.217249] evm: security.capability
> [ 0.217428] PM: Registering ACPI NVS region [mem 0xdae7f000-0xdaf9efff] (1179648 bytes)
> [ 0.217819] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
> [ 0.219461] NET: Registered protocol family 16
> [ 0.229829] cpuidle: using governor ladder
> [ 0.245777] cpuidle: using governor menu
> [ 0.245951] ACPI: bus type PCI registered
> [ 0.246267] PCI: MMCONFIG for domain 0000 [bus 00-3f] at [mem 0xf8000000-0xfbffffff] (base 0xf8000000)
> [ 0.246279] PCI: MMCONFIG at [mem 0xf8000000-0xfbffffff] reserved in E820
> [ 0.246295] PCI: Using configuration type 1 for base access
> [ 0.246961] perf_event_intel: PMU erratum BJ122, BV98, HSD29 worked around, HT is on
> [ 0.267458] ACPI: Added _OSI(Module Device)
> [ 0.267467] ACPI: Added _OSI(Processor Device)
> [ 0.267473] ACPI: Added _OSI(3.0 _SCP Extensions)
> [ 0.267479] ACPI: Added _OSI(Processor Aggregator Device)
> [ 0.278953] ACPI: Executed 1 blocks of module-level executable AML code
> [ 0.287564] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
> [ 0.289391] ACPI: Dynamic OEM Table Load:
> [ 0.289421] ACPI: SSDT 0xFFFF88011A2FE800 000688 (v01 PmRef Cpu0Cst 00003001 INTL 20061109)
> [ 0.291535] ACPI: Dynamic OEM Table Load:
> [ 0.291562] ACPI: SSDT 0xFFFF88011A2F8800 000303 (v01 PmRef ApIst 00003000 INTL 20061109)
> [ 0.293480] ACPI: Dynamic OEM Table Load:
> [ 0.293506] ACPI: SSDT 0xFFFF88011A2F5A00 000119 (v01 PmRef ApCst 00003000 INTL 20061109)
> [ 0.296779] ACPI : EC: EC started
> [ 0.298423] ACPI: Interpreter enabled
> [ 0.298449] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S2_] (20150619/hwxface-578)
> [ 0.298512] ACPI: (supports S0 S1 S3 S4 S5)
> [ 0.298519] ACPI: Using IOAPIC for interrupt routing
> [ 0.298595] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
> [ 0.319840] ACPI: Power Resource [FN00] (off)
> [ 0.320302] ACPI: Power Resource [FN01] (off)
> [ 0.320635] ACPI: Power Resource [FN02] (off)
> [ 0.320964] ACPI: Power Resource [FN03] (off)
> [ 0.321294] ACPI: Power Resource [FN04] (off)
> [ 0.323636] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-3e])
> [ 0.323651] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI]
> [ 0.324252] \_SB_.PCI0:_OSC invalid UUID
> [ 0.324254] _OSC request data:1 1f 0
> [ 0.324260] acpi PNP0A08:00: _OSC failed (AE_ERROR); disabling ASPM
> [ 0.325168] PCI host bridge to bus 0000:00
> [ 0.325177] pci_bus 0000:00: root bus resource [bus 00-3e]
> [ 0.325185] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window]
> [ 0.325193] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window]
> [ 0.325200] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
> [ 0.325209] pci_bus 0000:00: root bus resource [mem 0xdfa00000-0xfeafffff window]
> [ 0.325218] pci_bus 0000:00: root bus resource [mem 0xfed40000-0xfed44fff window]
> [ 0.325282] pci 0000:00:00.0: [8086:0104] type 00 class 0x060000
> [ 0.325674] pci 0000:00:02.0: [8086:0116] type 00 class 0x030000
> [ 0.325702] pci 0000:00:02.0: reg 0x10: [mem 0xf0000000-0xf03fffff 64bit]
> [ 0.325714] pci 0000:00:02.0: reg 0x18: [mem 0xe0000000-0xefffffff 64bit pref]
> [ 0.325722] pci 0000:00:02.0: reg 0x20: [io 0x3000-0x303f]
> [ 0.326215] pci 0000:00:16.0: [8086:1c3a] type 00 class 0x078000
> [ 0.326276] pci 0000:00:16.0: reg 0x10: [mem 0xf0705000-0xf070500f 64bit]
> [ 0.326395] pci 0000:00:16.0: PME# supported from D0 D3hot D3cold
> [ 0.326739] pci 0000:00:1a.0: [8086:1c2d] type 00 class 0x0c0320
> [ 0.326794] pci 0000:00:1a.0: reg 0x10: [mem 0xf070a000-0xf070a3ff]
> [ 0.326929] pci 0000:00:1a.0: PME# supported from D0 D3hot D3cold
> [ 0.327239] pci 0000:00:1b.0: [8086:1c20] type 00 class 0x040300
> [ 0.327298] pci 0000:00:1b.0: reg 0x10: [mem 0xf0700000-0xf0703fff 64bit]
> [ 0.327435] pci 0000:00:1b.0: PME# supported from D0 D3hot D3cold
> [ 0.327628] pci 0000:00:1b.0: System wakeup disabled by ACPI
> [ 0.327790] pci 0000:00:1c.0: [8086:1c10] type 01 class 0x060400
> [ 0.327942] pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold
> [ 0.328096] pci 0000:00:1c.0: System wakeup disabled by ACPI
> [ 0.328264] pci 0000:00:1c.3: [8086:1c16] type 01 class 0x060400
> [ 0.328414] pci 0000:00:1c.3: PME# supported from D0 D3hot D3cold
> [ 0.328568] pci 0000:00:1c.3: System wakeup disabled by ACPI
> [ 0.328729] pci 0000:00:1c.4: [8086:1c18] type 01 class 0x060400
> [ 0.328879] pci 0000:00:1c.4: PME# supported from D0 D3hot D3cold
> [ 0.329188] pci 0000:00:1d.0: [8086:1c26] type 00 class 0x0c0320
> [ 0.329243] pci 0000:00:1d.0: reg 0x10: [mem 0xf0709000-0xf07093ff]
> [ 0.329378] pci 0000:00:1d.0: PME# supported from D0 D3hot D3cold
> [ 0.329674] pci 0000:00:1f.0: [8086:1c49] type 00 class 0x060100
> [ 0.330130] pci 0000:00:1f.2: [8086:1c03] type 00 class 0x010601
> [ 0.330189] pci 0000:00:1f.2: reg 0x10: [io 0x3088-0x308f]
> [ 0.330206] pci 0000:00:1f.2: reg 0x14: [io 0x3094-0x3097]
> [ 0.330224] pci 0000:00:1f.2: reg 0x18: [io 0x3080-0x3087]
> [ 0.330241] pci 0000:00:1f.2: reg 0x1c: [io 0x3090-0x3093]
> [ 0.330258] pci 0000:00:1f.2: reg 0x20: [io 0x3060-0x307f]
> [ 0.330275] pci 0000:00:1f.2: reg 0x24: [mem 0xf0708000-0xf07087ff]
> [ 0.330343] pci 0000:00:1f.2: PME# supported from D3hot
> [ 0.330635] pci 0000:00:1f.3: [8086:1c22] type 00 class 0x0c0500
> [ 0.330673] pci 0000:00:1f.3: reg 0x10: [mem 0xf0704000-0xf07040ff 64bit]
> [ 0.330720] pci 0000:00:1f.3: reg 0x20: [io 0xefa0-0xefbf]
> [ 0.331393] pci 0000:01:00.0: [8086:0091] type 00 class 0x028000
> [ 0.332017] pci 0000:01:00.0: reg 0x10: [mem 0xf0600000-0xf0601fff 64bit]
> [ 0.333351] pci 0000:01:00.0: PME# supported from D0 D3hot D3cold
> [ 0.333610] pci 0000:01:00.0: System wakeup disabled by ACPI
> [ 0.338240] pci 0000:00:1c.0: PCI bridge to [bus 01]
> [ 0.338257] pci 0000:00:1c.0: bridge window [mem 0xf0600000-0xf06fffff]
> [ 0.338474] pci 0000:02:00.0: [10ec:8168] type 00 class 0x020000
> [ 0.338673] pci 0000:02:00.0: reg 0x10: [io 0x2000-0x20ff]
> [ 0.338811] pci 0000:02:00.0: reg 0x18: [mem 0xf0404000-0xf0404fff 64bit pref]
> [ 0.338896] pci 0000:02:00.0: reg 0x20: [mem 0xf0400000-0xf0403fff 64bit pref]
> [ 0.339187] pci 0000:02:00.0: supports D1 D2
> [ 0.339189] pci 0000:02:00.0: PME# supported from D0 D1 D2 D3hot D3cold
> [ 0.339327] pci 0000:02:00.0: System wakeup disabled by ACPI
> [ 0.346121] pci 0000:00:1c.3: PCI bridge to [bus 02]
> [ 0.346133] pci 0000:00:1c.3: bridge window [io 0x2000-0x2fff]
> [ 0.346149] pci 0000:00:1c.3: bridge window [mem 0xf0400000-0xf04fffff 64bit pref]
> [ 0.346312] pci 0000:03:00.0: [1b21:1042] type 00 class 0x0c0330
> [ 0.346394] pci 0000:03:00.0: reg 0x10: [mem 0xf0500000-0xf0507fff 64bit]
> [ 0.346588] pci 0000:03:00.0: PME# supported from D3hot D3cold
> [ 0.346843] pci 0000:00:1c.4: PCI bridge to [bus 03]
> [ 0.346859] pci 0000:00:1c.4: bridge window [mem 0xf0500000-0xf05fffff]
> [ 0.348856] ACPI: PCI Interrupt Link [LNKA] (IRQs 1 3 4 5 6 10 *11 12 14 15)
> [ 0.349038] ACPI: PCI Interrupt Link [LNKB] (IRQs 1 3 4 5 6 10 11 12 14 15) *0, disabled.
> [ 0.349231] ACPI: PCI Interrupt Link [LNKC] (IRQs 1 3 4 5 6 *10 11 12 14 15)
> [ 0.349406] ACPI: PCI Interrupt Link [LNKD] (IRQs 1 3 4 5 6 *10 11 12 14 15)
> [ 0.349580] ACPI: PCI Interrupt Link [LNKE] (IRQs 1 3 4 5 6 10 11 12 14 15) *9
> [ 0.349756] ACPI: PCI Interrupt Link [LNKF] (IRQs 1 3 4 5 6 10 11 12 14 15) *0, disabled.
> [ 0.349943] ACPI: PCI Interrupt Link [LNKG] (IRQs 1 3 4 5 6 10 *11 12 14 15)
> [ 0.350133] ACPI: PCI Interrupt Link [LNKH] (IRQs 1 3 4 5 6 10 11 12 14 15) *9
> [ 0.351521] ACPI: Enabled 4 GPEs in block 00 to 3F
> [ 0.351662] ACPI : EC: GPE = 0x17, I/O: command/status = 0x66, data = 0x62
> [ 0.352007] ACPI : EC: 0 stale EC events cleared
> [ 0.352821] vgaarb: setting as boot device: PCI:0000:00:02.0
> [ 0.352829] vgaarb: device added: PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none
> [ 0.352845] vgaarb: loaded
> [ 0.352850] vgaarb: bridge control possible 0000:00:02.0
> [ 0.353550] SCSI subsystem initialized
> [ 0.353732] libata version 3.00 loaded.
> [ 0.353838] ACPI: bus type USB registered
> [ 0.353915] usbcore: registered new interface driver usbfs
> [ 0.353955] usbcore: registered new interface driver hub
> [ 0.354079] usbcore: registered new device driver usb
> [ 0.354574] PCI: Using ACPI for IRQ routing
> [ 0.358278] PCI: pci_cache_line_size set to 64 bytes
> [ 0.358408] e820: reserve RAM buffer [mem 0x0009d800-0x0009ffff]
> [ 0.358418] e820: reserve RAM buffer [mem 0xd9c9f000-0xdbffffff]
> [ 0.358421] e820: reserve RAM buffer [mem 0xdb000000-0xdbffffff]
> [ 0.358424] e820: reserve RAM buffer [mem 0x11fe00000-0x11fffffff]
> [ 0.359243] NetLabel: Initializing
> [ 0.359249] NetLabel: domain hash size = 128
> [ 0.359254] NetLabel: protocols = UNLABELED CIPSOv4
> [ 0.359318] NetLabel: unlabeled traffic allowed by default
> [ 0.359567] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0, 0, 0, 0, 0, 0
> [ 0.359583] hpet0: 8 comparators, 64-bit 14.318180 MHz counter
> [ 0.361682] clocksource: Switched to clocksource hpet
> [ 0.403066] AppArmor: AppArmor Filesystem Enabled
> [ 0.403343] pnp: PnP ACPI init
> [ 0.403918] system 00:00: [io 0x0680-0x069f] has been reserved
> [ 0.403929] system 00:00: [io 0x1000-0x100f] has been reserved
> [ 0.403937] system 00:00: [io 0x5000-0x5003] has been reserved
> [ 0.403945] system 00:00: [io 0xffff] has been reserved
> [ 0.403954] system 00:00: [io 0x0400-0x0453] could not be reserved
> [ 0.403962] system 00:00: [io 0x0458-0x047f] has been reserved
> [ 0.403970] system 00:00: [io 0x0500-0x057f] has been reserved
> [ 0.403978] system 00:00: [io 0x0a00-0x0a0f] has been reserved
> [ 0.403986] system 00:00: [io 0x164e-0x164f] has been reserved
> [ 0.403994] system 00:00: [io 0x5000-0x500f] could not be reserved
> [ 0.404039] system 00:00: Plug and Play ACPI device, IDs PNP0c02 (active)
> [ 0.404133] pnp 00:01: Plug and Play ACPI device, IDs PNP0b00 (active)
> [ 0.404288] system 00:02: [io 0x0454-0x0457] has been reserved
> [ 0.404301] system 00:02: Plug and Play ACPI device, IDs INT3f0d PNP0c02 (active)
> [ 0.404397] pnp 00:03: Plug and Play ACPI device, IDs PNP0303 (active)
> [ 0.404524] pnp 00:04: Plug and Play ACPI device, IDs ETD0b00 SYN0002 PNP0f13 (active)
> [ 0.404958] system 00:05: [mem 0xfed1c000-0xfed1ffff] has been reserved
> [ 0.404969] system 00:05: [mem 0xfed10000-0xfed17fff] has been reserved
> [ 0.404978] system 00:05: [mem 0xfed18000-0xfed18fff] has been reserved
> [ 0.404986] system 00:05: [mem 0xfed19000-0xfed19fff] has been reserved
> [ 0.404998] system 00:05: [mem 0xf8000000-0xfbffffff] has been reserved
> [ 0.405007] system 00:05: [mem 0xfed20000-0xfed3ffff] has been reserved
> [ 0.405015] system 00:05: [mem 0xfed90000-0xfed93fff] has been reserved
> [ 0.405023] system 00:05: [mem 0xfed45000-0xfed8ffff] has been reserved
> [ 0.405032] system 00:05: [mem 0xff000000-0xffffffff] could not be reserved
> [ 0.405041] system 00:05: [mem 0xfee00000-0xfeefffff] could not be reserved
> [ 0.405053] system 00:05: Plug and Play ACPI device, IDs PNP0c02 (active)
> [ 0.405967] system 00:06: Plug and Play ACPI device, IDs PNP0c01 (active)
> [ 0.406021] pnp: PnP ACPI: found 7 devices
> [ 0.417428] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns
> [ 0.417495] pci 0000:00:1c.0: PCI bridge to [bus 01]
> [ 0.417509] pci 0000:00:1c.0: bridge window [mem 0xf0600000-0xf06fffff]
> [ 0.417530] pci 0000:00:1c.3: PCI bridge to [bus 02]
> [ 0.417539] pci 0000:00:1c.3: bridge window [io 0x2000-0x2fff]
> [ 0.417557] pci 0000:00:1c.3: bridge window [mem 0xf0400000-0xf04fffff 64bit pref]
> [ 0.417575] pci 0000:00:1c.4: PCI bridge to [bus 03]
> [ 0.417588] pci 0000:00:1c.4: bridge window [mem 0xf0500000-0xf05fffff]
> [ 0.417609] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window]
> [ 0.417612] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window]
> [ 0.417614] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window]
> [ 0.417617] pci_bus 0000:00: resource 7 [mem 0xdfa00000-0xfeafffff window]
> [ 0.417619] pci_bus 0000:00: resource 8 [mem 0xfed40000-0xfed44fff window]
> [ 0.417621] pci_bus 0000:01: resource 1 [mem 0xf0600000-0xf06fffff]
> [ 0.417634] pci_bus 0000:02: resource 0 [io 0x2000-0x2fff]
> [ 0.417636] pci_bus 0000:02: resource 2 [mem 0xf0400000-0xf04fffff 64bit pref]
> [ 0.417638] pci_bus 0000:03: resource 1 [mem 0xf0500000-0xf05fffff]
> [ 0.417780] NET: Registered protocol family 2
> [ 0.418488] TCP established hash table entries: 32768 (order: 6, 262144 bytes)
> [ 0.418987] TCP bind hash table entries: 32768 (order: 9, 2097152 bytes)
> [ 0.420929] TCP: Hash tables configured (established 32768 bind 32768)
> [ 0.421096] UDP hash table entries: 2048 (order: 6, 327680 bytes)
> [ 0.421417] UDP-Lite hash table entries: 2048 (order: 6, 327680 bytes)
> [ 0.421973] NET: Registered protocol family 1
> [ 0.422009] pci 0000:00:02.0: Video device with shadowed ROM
> [ 0.423622] PCI: CLS 64 bytes, default 64
> [ 0.423926] Trying to unpack rootfs image as initramfs...
> [ 0.527303] Freeing initrd memory: 3892K (ffff880037856000 - ffff880037c23000)
> [ 0.527327] PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
> [ 0.527335] software IO TLB [mem 0xd5c9f000-0xd9c9f000] (64MB) mapped at [ffff8800d5c9f000-ffff8800d9c9efff]
> [ 0.527538] RAPL PMU detected, API unit is 2^-32 Joules, 3 fixed counters 163840 ms ovfl timer
> [ 0.527548] hw unit of domain pp0-core 2^-16 Joules
> [ 0.527553] hw unit of domain package 2^-16 Joules
> [ 0.527559] hw unit of domain pp1-gpu 2^-16 Joules
> [ 0.527849] microcode: CPU0 sig=0x206a7, pf=0x10, revision=0x28
> [ 0.527874] microcode: CPU1 sig=0x206a7, pf=0x10, revision=0x28
> [ 0.527894] microcode: CPU2 sig=0x206a7, pf=0x10, revision=0x28
> [ 0.527930] microcode: CPU3 sig=0x206a7, pf=0x10, revision=0x28
> [ 0.528130] microcode: Microcode Update Driver: v2.00 <tigran@aivazian.fsnet.co.uk>, Peter Oruba
> [ 0.528210] Scanning for low memory corruption every 60 seconds
> [ 0.529662] futex hash table entries: 2048 (order: 6, 262144 bytes)
> [ 0.529806] Initialise system trusted keyring
> [ 0.529956] audit: initializing netlink subsys (disabled)
> [ 0.530053] audit: type=2000 audit(1441788352.472:1): initialized
> [ 0.531151] HugeTLB registered 2 MB page size, pre-allocated 0 pages
> [ 0.531805] VFS: Disk quotas dquot_6.6.0
> [ 0.531850] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
> [ 0.532766] fuse init (API version 7.23)
> [ 0.535376] Key type asymmetric registered
> [ 0.535406] Asymmetric key parser 'x509' registered
> [ 0.535477] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)
> [ 0.535661] io scheduler noop registered
> [ 0.535671] io scheduler deadline registered (default)
> [ 0.535716] io scheduler cfq registered
> [ 0.535727] start plist test
> [ 0.537590] end plist test
> [ 0.538692] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
> [ 0.538720] pciehp: PCI Express Hot Plug Controller Driver version: 0.4
> [ 0.538959] intel_idle: MWAIT substates: 0x21120
> [ 0.538961] intel_idle: v0.4 model 0x2A
> [ 0.538963] intel_idle: lapic_timer_reliable_states 0xffffffff
> [ 0.540354] ACPI: AC Adapter [ADP1] (on-line)
> [ 0.540622] input: Lid Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input0
> [ 0.540678] ACPI: Lid Switch [LID0]
> [ 0.540825] input: Power Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input1
> [ 0.540885] ACPI: Power Button [PWRB]
> [ 0.541035] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input2
> [ 0.541048] ACPI: Power Button [PWRF]
> [ 0.545138] thermal LNXTHERM:00: registered as thermal_zone0
> [ 0.545147] ACPI: Thermal Zone [TZ00] (66 C)
> [ 0.545967] thermal LNXTHERM:01: registered as thermal_zone1
> [ 0.545974] ACPI: Thermal Zone [TZ01] (30 C)
> [ 0.546096] GHES: HEST is not enabled!
> [ 0.546390] Serial: 8250/16550 driver, 32 ports, IRQ sharing enabled
> [ 0.554629] ACPI: Battery Slot [BAT1] (battery present)
> [ 0.556103] Linux agpgart interface v0.103
> [ 0.565456] brd: module loaded
> [ 0.569944] loop: module loaded
> [ 0.574667] ahci 0000:00:1f.2: version 3.0
> [ 0.575105] ahci 0000:00:1f.2: SSS flag set, parallel bus scan disabled
> [ 0.589649] ahci 0000:00:1f.2: AHCI 0001.0300 32 slots 6 ports 6 Gbps 0x1b impl SATA mode
> [ 0.589663] ahci 0000:00:1f.2: flags: 64bit ncq sntf ilck stag pm led clo pio slum part ems sxs apst
> [ 0.616247] scsi host0: ahci
> [ 0.616944] scsi host1: ahci
> [ 0.617534] scsi host2: ahci
> [ 0.617981] scsi host3: ahci
> [ 0.618551] scsi host4: ahci
> [ 0.619138] scsi host5: ahci
> [ 0.619361] ata1: SATA max UDMA/133 abar m2048@0xf0708000 port 0xf0708100 irq 25
> [ 0.619372] ata2: SATA max UDMA/133 abar m2048@0xf0708000 port 0xf0708180 irq 25
> [ 0.619380] ata3: DUMMY
> [ 0.619386] ata4: SATA max UDMA/133 abar m2048@0xf0708000 port 0xf0708280 irq 25
> [ 0.619396] ata5: SATA max UDMA/133 abar m2048@0xf0708000 port 0xf0708300 irq 25
> [ 0.619403] ata6: DUMMY
> [ 0.621030] libphy: Fixed MDIO Bus: probed
> [ 0.621431] tun: Universal TUN/TAP device driver, 1.6
> [ 0.621438] tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
> [ 0.621718] PPP generic driver version 2.4.2
> [ 0.622122] xhci_hcd 0000:03:00.0: xHCI Host Controller
> [ 0.622351] xhci_hcd 0000:03:00.0: new USB bus registered, assigned bus number 1
> [ 0.632152] xhci_hcd 0000:03:00.0: hcc params 0x0200f180 hci version 0x96 quirks 0x00080000
> [ 0.632937] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
> [ 0.632945] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> [ 0.632953] usb usb1: Product: xHCI Host Controller
> [ 0.632958] usb usb1: Manufacturer: Linux 4.2.0-4-llvmlinux-small xhci-hcd
> [ 0.632964] usb usb1: SerialNumber: 0000:03:00.0
> [ 0.633989] hub 1-0:1.0: USB hub found
> [ 0.634081] hub 1-0:1.0: 2 ports detected
> [ 0.635043] xhci_hcd 0000:03:00.0: xHCI Host Controller
> [ 0.635059] xhci_hcd 0000:03:00.0: new USB bus registered, assigned bus number 2
> [ 0.635216] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
> [ 0.635340] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003
> [ 0.635347] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> [ 0.635355] usb usb2: Product: xHCI Host Controller
> [ 0.635360] usb usb2: Manufacturer: Linux 4.2.0-4-llvmlinux-small xhci-hcd
> [ 0.635366] usb usb2: SerialNumber: 0000:03:00.0
> [ 0.635987] hub 2-0:1.0: USB hub found
> [ 0.636056] hub 2-0:1.0: 2 ports detected
> [ 0.636600] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
> [ 0.636610] ehci-pci: EHCI PCI platform driver
> [ 0.636916] ehci-pci 0000:00:1a.0: EHCI Host Controller
> [ 0.636942] ehci-pci 0000:00:1a.0: new USB bus registered, assigned bus number 3
> [ 0.636967] ehci-pci 0000:00:1a.0: debug port 2
> [ 0.640902] ehci-pci 0000:00:1a.0: cache line size of 64 is not supported
> [ 0.640934] ehci-pci 0000:00:1a.0: irq 16, io mem 0xf070a000
> [ 0.649697] ehci-pci 0000:00:1a.0: USB 2.0 started, EHCI 1.00
> [ 0.649895] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002
> [ 0.649903] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> [ 0.649911] usb usb3: Product: EHCI Host Controller
> [ 0.649916] usb usb3: Manufacturer: Linux 4.2.0-4-llvmlinux-small ehci_hcd
> [ 0.649922] usb usb3: SerialNumber: 0000:00:1a.0
> [ 0.650571] hub 3-0:1.0: USB hub found
> [ 0.650605] hub 3-0:1.0: 2 ports detected
> [ 0.651425] ehci-pci 0000:00:1d.0: EHCI Host Controller
> [ 0.651447] ehci-pci 0000:00:1d.0: new USB bus registered, assigned bus number 4
> [ 0.651477] ehci-pci 0000:00:1d.0: debug port 2
> [ 0.655388] ehci-pci 0000:00:1d.0: cache line size of 64 is not supported
> [ 0.655417] ehci-pci 0000:00:1d.0: irq 23, io mem 0xf0709000
> [ 0.665627] ehci-pci 0000:00:1d.0: USB 2.0 started, EHCI 1.00
> [ 0.665832] usb usb4: New USB device found, idVendor=1d6b, idProduct=0002
> [ 0.665840] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> [ 0.665848] usb usb4: Product: EHCI Host Controller
> [ 0.665853] usb usb4: Manufacturer: Linux 4.2.0-4-llvmlinux-small ehci_hcd
> [ 0.665859] usb usb4: SerialNumber: 0000:00:1d.0
> [ 0.666434] hub 4-0:1.0: USB hub found
> [ 0.666466] hub 4-0:1.0: 2 ports detected
> [ 0.666925] ehci-platform: EHCI generic platform driver
> [ 0.666964] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
> [ 0.666982] ohci-pci: OHCI PCI platform driver
> [ 0.667019] ohci-platform: OHCI generic platform driver
> [ 0.667048] uhci_hcd: USB Universal Host Controller Interface driver
> [ 0.667178] i8042: PNP: PS/2 Controller [PNP0303:PS2K,PNP0f13:EPAD] at 0x60,0x64 irq 1,12
> [ 0.673244] serio: i8042 KBD port at 0x60,0x64 irq 1
> [ 0.673318] serio: i8042 AUX port at 0x60,0x64 irq 12
> [ 0.674296] mousedev: PS/2 mouse device common for all mice
> [ 0.676160] rtc_cmos 00:01: rtc core: registered rtc_cmos as rtc0
> [ 0.676206] rtc_cmos 00:01: alarms up to one month, y3k, 242 bytes nvram, hpet irqs
> [ 0.676318] device-mapper: uevent: version 1.0.3
> [ 0.676652] device-mapper: ioctl: 4.32.0-ioctl (2015-6-26) initialised: dm-devel@redhat.com
> [ 0.676699] Intel P-state driver initializing.
> [ 0.677830] ledtrig-cpu: registered to indicate activity on CPUs
> [ 0.678584] NET: Registered protocol family 10
> [ 0.680893] NET: Registered protocol family 17
> [ 0.680968] Key type dns_resolver registered
> [ 0.683114] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input3
> [ 0.683242] Loading compiled-in X.509 certificates
> [ 0.684984] Loaded X.509 cert 'Build time autogenerated kernel key: c4f7614f9fae2fdbbeed19953bdf7f9184eff455'
> [ 0.685116] registered taskstats version 1
> [ 0.693336] Key type trusted registered
> [ 0.703948] Key type encrypted registered
> [ 0.703966] AppArmor: AppArmor sha1 policy hashing enabled
> [ 0.703975] evm: HMAC attrs: 0x1
> [ 0.704898] rtc_cmos 00:01: setting system clock to 2015-09-09 08:45:52 UTC (1441788352)
> [ 0.705086] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found
> [ 0.705093] EDD information not available.
> [ 0.937452] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
> [ 0.938776] ata1.00: ATA-8: Hitachi HTS545050A7E380, GG2OA6C0, max UDMA/133
> [ 0.938805] ata1.00: 976773168 sectors, multi 16: LBA48 NCQ (depth 31/32), AA
> [ 0.940183] ata1.00: configured for UDMA/133
> [ 0.941305] scsi 0:0:0:0: Direct-Access ATA Hitachi HTS54505 A6C0 PQ: 0 ANSI: 5
> [ 0.942579] sd 0:0:0:0: [sda] 976773168 512-byte logical blocks: (500 GB/465 GiB)
> [ 0.942592] sd 0:0:0:0: [sda] 4096-byte physical blocks
> [ 0.942877] sd 0:0:0:0: [sda] Write Protect is off
> [ 0.942886] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
> [ 0.942989] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
> [ 0.943119] sd 0:0:0:0: Attached scsi generic sg0 type 0
> [ 0.961311] usb 3-1: new high-speed USB device number 2 using ehci-pci
> [ 0.977410] usb 4-1: new high-speed USB device number 2 using ehci-pci
> [ 0.990702] sda: sda1 sda2 sda3
> [ 0.992150] sd 0:0:0:0: [sda] Attached SCSI disk
> [ 1.001356] usb 1-1: new low-speed USB device number 2 using xhci_hcd
> [ 1.094032] usb 3-1: New USB device found, idVendor=8087, idProduct=0024
> [ 1.094053] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
> [ 1.094985] hub 3-1:1.0: USB hub found
> [ 1.095391] hub 3-1:1.0: 6 ports detected
> [ 1.110061] usb 4-1: New USB device found, idVendor=8087, idProduct=0024
> [ 1.110073] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
> [ 1.110807] hub 4-1:1.0: USB hub found
> [ 1.111039] hub 4-1:1.0: 6 ports detected
> [ 1.195225] usb 1-1: New USB device found, idVendor=046d, idProduct=c00e
> [ 1.195246] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> [ 1.195253] usb 1-1: Product: USB-PS/2 Optical Mouse
> [ 1.195258] usb 1-1: Manufacturer: Logitech
> [ 1.195640] usb 1-1: ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes
> [ 1.261219] ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
> [ 1.262111] ata2.00: ATA-8: SanDisk iSSD P4 16GB, SSD 9.14, max UDMA/133
> [ 1.262145] ata2.00: 31277232 sectors, multi 1: LBA48
> [ 1.262880] ata2.00: configured for UDMA/133
> [ 1.263207] scsi 1:0:0:0: Direct-Access ATA SanDisk iSSD P4 9.14 PQ: 0 ANSI: 5
> [ 1.264107] sd 1:0:0:0: [sdb] 31277232 512-byte logical blocks: (16.0 GB/14.9 GiB)
> [ 1.264180] sd 1:0:0:0: Attached scsi generic sg1 type 0
> [ 1.264564] sd 1:0:0:0: [sdb] Write Protect is off
> [ 1.264574] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
> [ 1.264710] sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
> [ 1.265973] sdb: sdb1 sdb2
> [ 1.267128] sd 1:0:0:0: [sdb] Attached SCSI disk
> [ 1.368997] usb 3-1.4: new high-speed USB device number 3 using ehci-pci
> [ 1.380997] usb 4-1.4: new high-speed USB device number 3 using ehci-pci
> [ 1.481803] usb 4-1.4: New USB device found, idVendor=04a9, idProduct=2225
> [ 1.481815] usb 4-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> [ 1.481824] usb 4-1.4: Product: CanoScan
> [ 1.481829] usb 4-1.4: Manufacturer: Canon
> [ 1.525005] tsc: Refined TSC clocksource calibration: 1596.374 MHz
> [ 1.525016] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1702c3a922f, max_idle_ns: 440795242034 ns
> [ 1.552874] usb 4-1.5: new full-speed USB device number 4 using ehci-pci
> [ 1.580863] ata4: SATA link down (SStatus 0 SControl 300)
> [ 1.620703] usb 3-1.4: New USB device found, idVendor=2232, idProduct=1018
> [ 1.620714] usb 3-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> [ 1.620723] usb 3-1.4: Product: WebCam SC-13HDL11431N
> [ 1.620729] usb 3-1.4: Manufacturer: 123
> [ 1.649440] usb 4-1.5: New USB device found, idVendor=8086, idProduct=0189
> [ 1.649451] usb 4-1.5: New USB device strings: Mfr=0, Product=0, SerialNumber=0
> [ 1.900767] ata5: SATA link down (SStatus 0 SControl 300)
> [ 1.902112] Freeing unused kernel memory: 3080K (ffffffff81f28000 - ffffffff8222a000)
> [ 1.902125] Write protecting the kernel read-only data: 14336k
> [ 1.902990] Freeing unused kernel memory: 600K (ffff88000196a000 - ffff880001a00000)
> [ 1.903496] Freeing unused kernel memory: 736K (ffff880001d48000 - ffff880001e00000)
> [ 1.944813] udevd[142]: starting version 175
> [ 2.220184] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
> [ 2.220215] r8169 0000:02:00.0: can't disable ASPM; OS doesn't have ASPM control
> [ 2.234271] r8169 0000:02:00.0 eth0: RTL8168evl/8111evl at 0xffffc900009e2000, e8:03:9a:36:17:a9, XID 0c900800 IRQ 31
> [ 2.234297] r8169 0000:02:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
> [ 2.295760] usbcore: registered new interface driver usbhid
> [ 2.295777] usbhid: USB HID core driver
> [ 2.377757] input: Logitech USB-PS/2 Optical Mouse as /devices/pci0000:00/0000:00:1c.4/0000:03:00.0/usb1/1-1/1-1:1.0/0003:046D:C00E.0001/input/input5
> [ 2.378444] hid-generic 0003:046D:C00E.0001: input: USB HID v1.10 Mouse [Logitech USB-PS/2 Optical Mouse] on usb-0000:03:00.0-1/input0
> [ 2.524807] clocksource: Switched to clocksource tsc
> [ 3.042645] EXT4-fs (loop0): mounted filesystem with ordered data mode. Opts: (null)
> [ 3.778068] random: nonblocking pool is initialized
> [ 4.167029] usb 3-1.2: new high-speed USB device number 4 using ehci-pci
> [ 4.262423] usb 3-1.2: New USB device found, idVendor=12d1, idProduct=1446
> [ 4.262435] usb 3-1.2: New USB device strings: Mfr=3, Product=2, SerialNumber=0
> [ 4.262443] usb 3-1.2: Product: HUAWEI Mobile
> [ 4.262448] usb 3-1.2: Manufacturer: HUAWEI Technology
> [ 5.338097] init: ureadahead main process (429) terminated with status 5
> [ 10.098948] Adding 262140k swap on /host/ubuntu/disks/swap.disk. Priority:-1 extents:1 across:262140k FS
> [ 10.298233] EXT4-fs (loop0): re-mounted. Opts: errors=remount-ro
> [ 10.509388] udevd[662]: starting version 175
> [ 11.344025] lp: driver loaded but no devices found
> [ 12.179289] wmi: Mapper loaded
> [ 12.291970] ACPI Warning: SystemIO range 0x0000000000000428-0x000000000000042F conflicts with OpRegion 0x0000000000000400-0x000000000000047F (\PMIO) (20150619/utaddress-245)
> [ 12.291985] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
> [ 12.291993] ACPI Warning: SystemIO range 0x0000000000000540-0x000000000000054F conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20150619/utaddress-245)
> [ 12.292002] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
> [ 12.292006] ACPI Warning: SystemIO range 0x0000000000000530-0x000000000000053F conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20150619/utaddress-245)
> [ 12.292015] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
> [ 12.292018] ACPI Warning: SystemIO range 0x0000000000000500-0x000000000000052F conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20150619/utaddress-245)
> [ 12.292026] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
> [ 12.292029] lpc_ich: Resource conflict(s) found affecting gpio_ich
> [ 12.333339] [drm] Initialized drm 1.1.0 20060810
> [ 12.503477] samsung_laptop: detected SABI interface: SwSmi@
> [ 14.492080] psmouse serio1: elantech: assuming hardware version 3 (with firmware version 0x450f00)
> [ 14.506991] psmouse serio1: elantech: Synaptics capabilities query result 0x08, 0x17, 0x0c.
> [ 14.522058] psmouse serio1: elantech: Elan sample query result 03, 3f, 86
> [ 14.552711] usb-storage 3-1.2:1.0: USB Mass Storage device detected
> [ 14.556521] scsi host6: usb-storage 3-1.2:1.0
> [ 14.557909] usb-storage 3-1.2:1.1: USB Mass Storage device detected
> [ 14.558185] scsi host7: usb-storage 3-1.2:1.1
> [ 14.558471] usbcore: registered new interface driver usb-storage
> [ 14.607690] Bluetooth: Core ver 2.20
> [ 14.607742] NET: Registered protocol family 31
> [ 14.607746] Bluetooth: HCI device and connection manager initialized
> [ 14.607844] Bluetooth: HCI socket layer initialized
> [ 14.607944] Bluetooth: L2CAP socket layer initialized
> [ 14.608009] Bluetooth: SCO socket layer initialized
> [ 14.611816] input: ETPS/2 Elantech Touchpad as /devices/platform/i8042/serio1/input/input6
> [ 14.727170] usb 4-1.5: USB disconnect, device number 4
> [ 14.915816] Linux video capture interface: v2.00
> [ 15.236587] usbcore: registered new interface driver btusb
> [ 15.557956] scsi 6:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2
> [ 15.558035] scsi 7:0:0:0: Direct-Access HUAWEI SD Storage 2.31 PQ: 0 ANSI: 2
> [ 15.569353] sd 7:0:0:0: Attached scsi generic sg2 type 0
> [ 15.572723] sd 7:0:0:0: [sdc] Attached SCSI removable disk
> [ 15.577240] sr 6:0:0:0: [sr0] scsi-1 drive
> [ 15.577246] cdrom: Uniform CD-ROM driver Revision: 3.20
> [ 15.583476] sr 6:0:0:0: Attached scsi CD-ROM sr0
> [ 15.584051] sr 6:0:0:0: Attached scsi generic sg3 type 5
> [ 15.944236] Intel(R) Wireless WiFi driver for Linux
> [ 15.944241] Copyright(c) 2003- 2015 Intel Corporation
> [ 15.944596] iwlwifi 0000:01:00.0: can't disable ASPM; OS doesn't have ASPM control
> [ 16.385362] iwlwifi 0000:01:00.0: loaded firmware version 18.168.6.1 op_mode iwldvm
> [ 16.501990] [drm] Memory usable by graphics device = 2048M
> [ 16.502072] [drm] Replacing VGA console driver
> [ 16.510547] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
> [ 16.510551] [drm] Driver supports precise vblank timestamp query.
> [ 16.511455] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
> [ 16.527303] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no)
> [ 16.528137] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input7
> [ 16.529465] [drm] Initialized i915 1.6.0 20150522 for 0000:00:02.0 on minor 0
> [ 16.536330] fbcon: inteldrmfb (fb0) is primary device
> [ 16.808457] cfg80211: World regulatory domain updated:
> [ 16.808460] cfg80211: DFS Master region: unset
> [ 16.808460] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
> [ 16.808463] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
> [ 16.808464] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
> [ 16.808465] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
> [ 16.808467] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
> [ 16.808468] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
> [ 17.095308] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC269VC: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker
> [ 17.095310] snd_hda_codec_realtek hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
> [ 17.095312] snd_hda_codec_realtek hdaudioC0D0: hp_outs=1 (0x15/0x0/0x0/0x0/0x0)
> [ 17.095313] snd_hda_codec_realtek hdaudioC0D0: mono: mono_out=0x0
> [ 17.095314] snd_hda_codec_realtek hdaudioC0D0: inputs:
> [ 17.095317] snd_hda_codec_realtek hdaudioC0D0: Internal Mic=0x19
> [ 17.095320] snd_hda_codec_realtek hdaudioC0D0: Mic=0x18
> [ 17.143191] input: HDA Intel PCH Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input8
> [ 17.144579] input: HDA Intel PCH Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input9
> [ 17.145044] input: HDA Intel PCH HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input10
> [ 17.552597] Console: switching to colour frame buffer device 170x48
> [ 17.557261] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
> [ 17.557263] i915 0000:00:02.0: registered panic notifier
> [ 18.549595] usb 3-1.2: USB disconnect, device number 4
> [ 18.925193] audit: type=1400 audit(1441781170.732:2): apparmor="STATUS" operation="profile_load" name="/sbin/dhclient" pid=1040 comm="apparmor_parser"
> [ 18.925207] audit: type=1400 audit(1441781170.732:3): apparmor="STATUS" operation="profile_load" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1040 comm="apparmor_parser"
> [ 18.925214] audit: type=1400 audit(1441781170.732:4): apparmor="STATUS" operation="profile_load" name="/usr/lib/connman/scripts/dhclient-script" pid=1040 comm="apparmor_parser"
> [ 18.925516] audit: type=1400 audit(1441781170.732:5): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=1009 comm="apparmor_parser"
> [ 18.925528] audit: type=1400 audit(1441781170.732:6): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1009 comm="apparmor_parser"
> [ 18.925536] audit: type=1400 audit(1441781170.732:7): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=1009 comm="apparmor_parser"
> [ 18.926015] audit: type=1400 audit(1441781170.732:8): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1040 comm="apparmor_parser"
> [ 18.926025] audit: type=1400 audit(1441781170.732:9): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=1040 comm="apparmor_parser"
> [ 18.926206] audit: type=1400 audit(1441781170.732:10): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1009 comm="apparmor_parser"
> [ 18.926215] audit: type=1400 audit(1441781170.732:11): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=1009 comm="apparmor_parser"
> [ 19.005709] iwlwifi 0000:01:00.0: CONFIG_IWLWIFI_DEBUG disabled
> [ 19.005715] iwlwifi 0000:01:00.0: CONFIG_IWLWIFI_DEBUGFS enabled
> [ 19.005717] iwlwifi 0000:01:00.0: CONFIG_IWLWIFI_DEVICE_TRACING enabled
> [ 19.005721] iwlwifi 0000:01:00.0: Detected Intel(R) Centrino(R) Advanced-N 6230 AGN, REV=0xB0
> [ 19.006469] iwlwifi 0000:01:00.0: L1 Enabled - LTR Disabled
> [ 19.138330] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs'
> [ 19.389824] uvcvideo: Found UVC 1.00 device WebCam SC-13HDL11431N (2232:1018)
> [ 19.409648] input: WebCam SC-13HDL11431N as /devices/pci0000:00/0000:00:1a.0/usb3/3-1/3-1.4/3-1.4:1.0/input/input11
> [ 19.410192] usbcore: registered new interface driver uvcvideo
> [ 19.410197] USB Video Class driver (1.1.1)
> [ 19.618732] init: failsafe main process (1150) killed by TERM signal
> [ 21.437171] ppdev: user-space parallel port driver
> [ 21.732302] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
> [ 21.732310] Bluetooth: BNEP filters: protocol multicast
> [ 21.732323] Bluetooth: BNEP socket layer initialized
> [ 21.834287] Bluetooth: RFCOMM TTY layer initialized
> [ 21.834309] Bluetooth: RFCOMM socket layer initialized
> [ 21.834327] Bluetooth: RFCOMM ver 1.11
> [ 22.590030] usb 3-1.2: new high-speed USB device number 5 using ehci-pci
> [ 22.684968] usb 3-1.2: New USB device found, idVendor=12d1, idProduct=1436
> [ 22.684990] usb 3-1.2: New USB device strings: Mfr=4, Product=3, SerialNumber=0
> [ 22.684992] usb 3-1.2: Product: HUAWEI Mobile
> [ 22.684994] usb 3-1.2: Manufacturer: HUAWEI Technology
> [ 22.688171] usb-storage 3-1.2:1.0: USB Mass Storage device detected
> [ 22.689049] usb-storage 3-1.2:1.1: USB Mass Storage device detected
> [ 22.689487] usb-storage 3-1.2:1.2: USB Mass Storage device detected
> [ 22.690011] usb-storage 3-1.2:1.3: USB Mass Storage device detected
> [ 22.690590] usb-storage 3-1.2:1.4: USB Mass Storage device detected
> [ 22.691060] usb-storage 3-1.2:1.5: USB Mass Storage device detected
> [ 22.691526] scsi host13: usb-storage 3-1.2:1.5
> [ 22.692116] usb-storage 3-1.2:1.6: USB Mass Storage device detected
> [ 22.692649] scsi host14: usb-storage 3-1.2:1.6
> [ 22.833361] cdc_ether 3-1.2:1.1 wwan0: register 'cdc_ether' at usb-0000:00:1a.0-1.2, Mobile Broadband Network Device, 02:50:f3:00:00:00
> [ 22.833465] usbcore: registered new interface driver cdc_ether
> [ 23.000392] usbcore: registered new interface driver usbserial
> [ 23.423482] usbcore: registered new interface driver option
> [ 23.424445] usbserial: USB Serial support registered for GSM modem (1-port)
> [ 23.424690] option 3-1.2:1.0: GSM modem (1-port) converter detected
> [ 23.426169] usb 3-1.2: GSM modem (1-port) converter now attached to ttyUSB0
> [ 23.426560] option 3-1.2:1.3: GSM modem (1-port) converter detected
> [ 23.426908] usb 3-1.2: GSM modem (1-port) converter now attached to ttyUSB1
> [ 23.426990] option 3-1.2:1.4: GSM modem (1-port) converter detected
> [ 23.427367] usb 3-1.2: GSM modem (1-port) converter now attached to ttyUSB2
> [ 23.691686] scsi 13:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2
> [ 23.691901] scsi 14:0:0:0: Direct-Access HUAWEI SD Storage 2.31 PQ: 0 ANSI: 2
> [ 23.693060] sd 14:0:0:0: Attached scsi generic sg2 type 0
> [ 23.697410] sr 13:0:0:0: [sr0] scsi-1 drive
> [ 23.697952] sd 14:0:0:0: [sdc] Attached SCSI removable disk
> [ 23.699678] sr 13:0:0:0: Attached scsi CD-ROM sr0
> [ 23.701457] sr 13:0:0:0: Attached scsi generic sg3 type 5
> [ 23.769401] BUG: sleeping function called from invalid context at kernel/workqueue.c:2680
> [ 23.769510] in_atomic(): 0, irqs_disabled(): 1, pid: 1415, name: acpid
> [ 23.769595] 3 locks held by acpid/1415:
> [ 23.769598] #0: (&evdev->mutex){+.+...}, at: [<ffffffff8177e97c>] evdev_release+0xbc/0xf0
> [ 23.769613] #1: (&dev->mutex#2){+.+...}, at: [<ffffffff81775e17>] input_close_device+0x27/0x70
> [ 23.769625] #2: (hid_open_mut){+.+...}, at: [<ffffffffa0056378>] usbhid_close+0x28/0xb0 [usbhid]
> [ 23.769638] irq event stamp: 20088
> [ 23.769641] hardirqs last enabled at (20087): [<ffffffff81960d22>] _raw_spin_unlock_irq+0x32/0x60
> [ 23.769648] hardirqs last disabled at (20088): [<ffffffff8113b577>] del_timer_sync+0x37/0x110
> [ 23.769656] softirqs last enabled at (18922): [<ffffffff818e5fe9>] local_bh_enable+0x9/0x20
> [ 23.769662] softirqs last disabled at (18920): [<ffffffff818e5fc9>] local_bh_disable+0x9/0x20
> [ 23.769670] CPU: 3 PID: 1415 Comm: acpid Not tainted 4.2.0-4-llvmlinux-small #2
> [ 23.769674] Hardware name: SAMSUNG ELECTRONICS CO., LTD. 530U3BI/530U4BI/530U4BH/530U3BI/530U4BI/530U4BH, BIOS 13XK 03/28/2013
> [ 23.769677] ffff8800d3152948 0000000000000096 0000000000000000 ffff8800bbfd3a88
> [ 23.769685] ffffffff814c793d ffff8800bbfd3ab8 ffffffff810dd17a ffffffff81c50894
> [ 23.769691] ffff8800ca219600 0000000000000000 0000000000000a78 ffff8800bbfd3af8
> [ 23.769698] Call Trace:
> [ 23.769705] [<ffffffff814c793d>] dump_stack+0x7d/0xa0
> [ 23.769712] [<ffffffff810dd17a>] ___might_sleep+0x28a/0x2a0
> [ 23.769717] [<ffffffff810dce7f>] __might_sleep+0x4f/0xc0
> [ 23.769724] [<ffffffff810be0cf>] start_flush_work+0x2f/0x290
> [ 23.769729] [<ffffffff810be07c>] flush_work+0x5c/0x80
> [ 23.769734] [<ffffffff810be03a>] ? flush_work+0x1a/0x80
> [ 23.769739] [<ffffffff8113b52b>] ? try_to_del_timer_sync+0x6b/0x80
> [ 23.769745] [<ffffffff81104ead>] ? trace_hardirqs_off+0xd/0x10
> [ 23.769751] [<ffffffff810bd1e8>] ? try_to_grab_pending+0x48/0x230
> [ 23.769756] [<ffffffff81960b43>] ? _raw_spin_lock_irqsave+0x73/0x80
> [ 23.769762] [<ffffffff810be4c9>] __cancel_work_timer+0x179/0x260
> [ 23.769767] [<ffffffff81960cc2>] ? _raw_spin_unlock_irqrestore+0x52/0x80
> [ 23.769772] [<ffffffff8113b52b>] ? try_to_del_timer_sync+0x6b/0x80
> [ 23.769777] [<ffffffff810be348>] cancel_work_sync+0x18/0x20
> [ 23.769783] [<ffffffffa00563c5>] usbhid_close+0x75/0xb0 [usbhid]
> [ 23.769791] [<ffffffffa0039431>] hidinput_close+0x31/0x40 [hid]
> [ 23.769799] [<ffffffffa0039400>] ? hidinput_open+0x40/0x40 [hid]
> [ 23.769804] [<ffffffff81775e38>] input_close_device+0x48/0x70
> [ 23.769809] [<ffffffff8177e996>] evdev_release+0xd6/0xf0
> [ 23.769814] [<ffffffff81291f87>] __fput+0x107/0x240
> [ 23.769819] [<ffffffff81291e16>] ____fput+0x16/0x20
> [ 23.769824] [<ffffffff810c7c67>] task_work_run+0x87/0x130
> [ 23.769831] [<ffffffff810246f7>] do_notify_resume+0xcd7/0xd10
> [ 23.769836] [<ffffffff81104ebd>] ? trace_hardirqs_on+0xd/0x10
> [ 23.769843] [<ffffffff811efbc3>] ? context_tracking_user_enter+0x13/0x20
> [ 23.769848] [<ffffffff81037762>] ? syscall_trace_leave+0x1b2/0x4b0
> [ 23.769852] [<ffffffff81291da6>] ? fput+0x76/0xd0
> [ 23.769856] [<ffffffff8128e6c5>] ? filp_close+0x65/0x90
> [ 23.769861] [<ffffffff81003017>] ? trace_hardirqs_on_thunk+0x17/0x19
> [ 23.769866] [<ffffffff81961aee>] int_signal+0x12/0x17
> [ 27.208814] r8169 0000:02:00.0 eth0: link down
> [ 27.209096] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
> [ 64.014366] PPP BSD Compression module registered
> [ 64.021607] PPP Deflate Compression module registered



> Behan Webster (19):
> kbuild-clang-detect
> kbuild, LLVMLinux: Add better clang cross build support
> kbuild, LLVMLinux: Add more compiler options for clang
> kbuild, LLVMLinux: Fix asm-offset generation to work with clang
> mpi, LLVMLinux: Fix ASM for clang in mpi
> mpi, LLVMLinux: Remove use of extern inline from lib/mpi
> mpi, LLVMLinux: Don't use __attribute__ ((mode(QI))) for lib/mpi
> mpi, LLVMLinux: Remove unused headers from mpi-internal.h
> md, sysfs, LLVMLinux: Remove nested function from bcache sysfs
> scsi, megaraid, sas, LLVMLinux: Remove inline
> DO-NOT-UPSTREAM scsi, osd, LLVMLinux: Remove __weak attribute
> exofs, LLVMLinux: Remove VLAIS from exofs
> md, raid10, LLVMLinux: Remove VLAIS from raid10 driver
> fs, nfs, LLVMLinux: Remove VLAIS from nfs
> net, wimax, i2400, LLVMLinux: Remove VLAIS from wimax i2400m driver
> Mark inline functions as __maybe_unused
> LLVMLinux: use -Oz instead of -Os when using clang
> makefile-print
> kbuild: LLVMLinux: Clang doesn't support the gcc flags set by CONFIG_ARCH_HWEIGHT_CFLAGS
>
> Denys Vlasenko (1):
> linux/bitmap: Force inlining of bitmap weight functions
>
> Jan-Simon Möller (3):
> x86: LLVMLinux: Add option for clang in export of memcpy.
> WORKAROUND DO-NOT-UPSTREAM x86, boot: Work around clang PR18415.
> Revert "x86: Align jump targets to 1-byte boundaries"
>
> Mark Charlebois (3):
> Kbuild: LLVMLinux: Disable the use of the Integrated Assembler when compiling with Clang
> fs, LLVMLinux: Remove warning from COMPATIBLE_IOCTL
> kbuild, LLVMLinux: Add -Werror to cc-option to support clang
>
> Sedat Dilek (5):
> Revert "ppp: fix device unregistration upon netns deletion"
> cpumask: Force inlining of cpumask_weight function
> nodemask: Force inlining of __nodes_weight function
> Merge branch 'for-4.2/llvmlinux-fixes' into 4.2.0-3-llvmlinux-small
> Merge branch 'for-4.2/bitmap-fixes' into 4.2.0-3-llvmlinux-small
>
> Vinícius Tinti (3):
> kbuild: LLVMLinux: Add support to generate LLVM bitcode files
> apparmor: LLVMLinux: Remove VLAIS
> DO-NOT-UPSTREAM xen, LLVMLinux: Remove VLAIS from xen mmu
>
> .gitignore | 1 +
> Kbuild | 8 ++--
> Makefile | 59 +++++++++++++++++------
> arch/x86/Makefile | 6 ---
> arch/x86/boot/memory.c | 7 ++-
> arch/x86/boot/string.h | 2 +
> arch/x86/um/ksyms.c | 2 +-
> arch/x86/xen/mmu.c | 35 +++++++-------
> drivers/md/bcache/sysfs.c | 10 ++--
> drivers/md/raid10.c | 16 +++----
> drivers/net/ppp/ppp_generic.c | 78 ++++++++++++++-----------------
> drivers/net/wimax/i2400m/fw.c | 2 +-
> drivers/scsi/megaraid/megaraid_sas_base.c | 2 +-
> fs/compat_ioctl.c | 2 +-
> fs/exofs/Kconfig | 2 +-
> fs/exofs/super.c | 22 ++++-----
> fs/nfs/Kconfig | 2 +-
> fs/nfs/objlayout/objio_osd.c | 5 +-
> include/linux/bitmap.h | 2 +-
> include/linux/bitops.h | 6 +--
> include/linux/compiler-gcc.h | 10 ++--
> include/linux/cpumask.h | 2 +-
> include/linux/kbuild.h | 6 +--
> include/linux/nodemask.h | 2 +-
> include/scsi/osd_types.h | 2 +-
> lib/Makefile | 2 +
> lib/mpi/Makefile | 2 +
> lib/mpi/longlong.h | 9 ++--
> lib/mpi/mpi-inline.h | 2 +-
> lib/mpi/mpi-internal.h | 10 +---
> scripts/Kbuild.include | 6 +--
> scripts/Makefile.build | 14 ++++++
> scripts/mod/Makefile | 8 ++--
> security/apparmor/crypto.c | 17 +++----
> 34 files changed, 194 insertions(+), 167 deletions(-)
>
> diff --git a/.gitignore b/.gitignore
> index 4ad4a98b884b..bbd5f34bd5c5 100644
> --- a/.gitignore
> +++ b/.gitignore
> @@ -33,6 +33,7 @@
> *.lzo
> *.patch
> *.gcno
> +*.ll
> modules.builtin
> Module.symvers
> *.dwo
> diff --git a/Kbuild b/Kbuild
> index f55cefd9bf29..0bbb86358942 100644
> --- a/Kbuild
> +++ b/Kbuild
> @@ -8,10 +8,10 @@
>
> # Default sed regexp - multiline due to syntax constraints
> define sed-y
> - "/^->/{s:->#\(.*\):/* \1 */:; \
> - s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \
> - s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
> - s:->::; p;}"
> + "/^@->/{s:@->#\(.*\):/* \1 */:; \
> + s:^@->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \
> + s:^@->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
> + s:@->::; p;}"
> endef
>
> # Use filechk to avoid rebuilds when a header changes, but the resulting file
> diff --git a/Makefile b/Makefile
> index c3615937df38..0e333fd142a1 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -302,7 +302,7 @@ HOSTCXXFLAGS = -O2
>
> ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1)
> HOSTCFLAGS += -Wno-unused-value -Wno-unused-parameter \
> - -Wno-missing-field-initializers -fno-delete-null-pointer-checks
> + -Wno-missing-field-initializers
> endif
>
> # Decide whether to build built-in, modular, or both.
> @@ -366,6 +366,26 @@ CFLAGS_KERNEL =
> AFLAGS_KERNEL =
> CFLAGS_GCOV = -fprofile-arcs -ftest-coverage
>
> +ifeq ($(shell $(CC) -v 2>&1 | grep -c "clang version"), 1)
> +COMPILER := clang
> +else
> +COMPILER := gcc
> +endif
> +export COMPILER
> +
> +ifeq ($(COMPILER),clang)
> +ifneq ($(CROSS_COMPILE),)
> +CLANG_TARGET := -target $(notdir $(CROSS_COMPILE:%-=%))
> +GCC_TOOLCHAIN := $(dir $(CROSS_COMPILE))
> +endif
> +ifneq ($(GCC_TOOLCHAIN),)
> +CLANG_GCC_TC := -gcc-toolchain $(GCC_TOOLCHAIN)
> +endif
> +ifneq ($(CLANG_ENABLE_IA),1)
> +CLANG_IA_FLAG = -no-integrated-as
> +endif
> +CLANG_FLAGS := $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_IA_FLAG)
> +endif
>
> # Use USERINCLUDE when you must reference the UAPI directories only.
> USERINCLUDE := \
> @@ -391,11 +411,11 @@ KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
> -fno-strict-aliasing -fno-common \
> -Werror-implicit-function-declaration \
> -Wno-format-security \
> - -std=gnu89
> + -std=gnu89 $(CLANG_FLAGS)
>
> KBUILD_AFLAGS_KERNEL :=
> KBUILD_CFLAGS_KERNEL :=
> -KBUILD_AFLAGS := -D__ASSEMBLY__
> +KBUILD_AFLAGS := -D__ASSEMBLY__ $(CLANG_FLAGS)
> KBUILD_AFLAGS_MODULE := -DMODULE
> KBUILD_CFLAGS_MODULE := -DMODULE
> KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds
> @@ -604,10 +624,9 @@ ARCH_AFLAGS :=
> ARCH_CFLAGS :=
> include arch/$(SRCARCH)/Makefile
>
> -KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks,)
> -
> ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
> -KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,)
> +KBUILD_CFLAGS += $(call cc-option,-Oz,-Os)
> +KBUILD_CFLAGS += $(call cc-disable-warning,maybe-uninitialized,)
> else
> KBUILD_CFLAGS += -O2
> endif
> @@ -666,28 +685,26 @@ endif
> endif
> KBUILD_CFLAGS += $(stackp-flag)
>
> -ifeq ($(shell $(CC) -v 2>&1 | grep -c "clang version"), 1)
> -COMPILER := clang
> -else
> -COMPILER := gcc
> -endif
> -export COMPILER
> -
> ifeq ($(COMPILER),clang)
> KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
> -KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,)
> KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable)
> KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
> KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
> +KBUILD_CFLAGS += -Wno-asm-operand-widths
> +KBUILD_CFLAGS += -Wno-initializer-overrides
> +KBUILD_CFLAGS += -fno-builtin
> +
> # Quiet clang warning: comparison of unsigned expression < 0 is always false
> KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
> +
> # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the
> # source of a reference will be _MergedGlobals and not on of the whitelisted names.
> # See modpost pattern 2
> KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,)
> -KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
> +
> else
>
> +KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks,)
> # This warning generated too much noise in a regular build.
> # Use make W=1 to enable this warning (see scripts/Makefile.build)
> KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
> @@ -1263,6 +1280,8 @@ help:
> @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)'
> @echo ' dir/ - Build all files in dir and below'
> @echo ' dir/file.[oisS] - Build specified target only'
> + @echo ' dir/file.ll - Build the LLVM bitcode file'
> + @echo ' (requires compiler support for LLVM bitcode generation)'
> @echo ' dir/file.lst - Build specified mixed source/assembly target only'
> @echo ' (requires a recent binutils and recent build (System.map))'
> @echo ' dir/file.ko - Build module including final link'
> @@ -1539,6 +1558,10 @@ endif
> $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
> %.symtypes: %.c prepare scripts FORCE
> $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
> +%.ll: %.c prepare scripts FORCE
> + $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
> +%.ll: %.S prepare scripts FORCE
> + $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
>
> # Modules
> /: prepare scripts FORCE
> @@ -1594,3 +1617,9 @@ FORCE:
> # Declare the contents of the .PHONY variable as phony. We keep that
> # information in a variable so we can use it in if_changed and friends.
> .PHONY: $(PHONY)
> +
> +print-%:
> + @echo '$*=$($*)'
> + @echo ' origin = $(origin $*)'
> + @echo ' flavor = $(flavor $*)'
> + @echo ' value = $(value $*)'
> diff --git a/arch/x86/Makefile b/arch/x86/Makefile
> index 118e6debc483..4fea5e90c941 100644
> --- a/arch/x86/Makefile
> +++ b/arch/x86/Makefile
> @@ -77,12 +77,6 @@ else
> KBUILD_AFLAGS += -m64
> KBUILD_CFLAGS += -m64
>
> - # Align jump targets to 1 byte, not the default 16 bytes:
> - KBUILD_CFLAGS += -falign-jumps=1
> -
> - # Pack loops tightly as well:
> - KBUILD_CFLAGS += -falign-loops=1
> -
> # Don't autogenerate traditional x87 instructions
> KBUILD_CFLAGS += $(call cc-option,-mno-80387)
> KBUILD_CFLAGS += $(call cc-option,-mno-fp-ret-in-387)
> diff --git a/arch/x86/boot/memory.c b/arch/x86/boot/memory.c
> index db75d07c3645..7af65046dfad 100644
> --- a/arch/x86/boot/memory.c
> +++ b/arch/x86/boot/memory.c
> @@ -63,8 +63,13 @@ static int detect_memory_e820(void)
> count = 0;
> break;
> }
> -
> +#ifdef __clang__
> + /* PR18415 */
> + memcpy(desc, &buf, sizeof(*desc));
> + desc++;
> +#else
> *desc++ = buf;
> +#endif
> count++;
> } while (ireg.ebx && count < ARRAY_SIZE(boot_params.e820_map));
>
> diff --git a/arch/x86/boot/string.h b/arch/x86/boot/string.h
> index 725e820602b1..3e07af1d80e3 100644
> --- a/arch/x86/boot/string.h
> +++ b/arch/x86/boot/string.h
> @@ -14,8 +14,10 @@ int memcmp(const void *s1, const void *s2, size_t len);
> * Access builtin version by default. If one needs to use optimized version,
> * do "undef memcpy" in .c file and link against right string.c
> */
> +#ifndef __clang__ /* PR18415 */
> #define memcpy(d,s,l) __builtin_memcpy(d,s,l)
> #define memset(d,c,l) __builtin_memset(d,c,l)
> #define memcmp __builtin_memcmp
> +#endif
>
> #endif /* BOOT_STRING_H */
> diff --git a/arch/x86/um/ksyms.c b/arch/x86/um/ksyms.c
> index 2e8f43ec6214..04aedcecd887 100644
> --- a/arch/x86/um/ksyms.c
> +++ b/arch/x86/um/ksyms.c
> @@ -4,7 +4,7 @@
>
> #ifndef CONFIG_X86_32
> /*XXX: we need them because they would be exported by x86_64 */
> -#if (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) || __GNUC__ > 4
> +#if (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) || __GNUC__ > 4 || defined(__clang__)
> EXPORT_SYMBOL(memcpy);
> #else
> EXPORT_SYMBOL(__memcpy);
> diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
> index dd151b2045b0..0c12e370860e 100644
> --- a/arch/x86/xen/mmu.c
> +++ b/arch/x86/xen/mmu.c
> @@ -1271,36 +1271,37 @@ static void xen_flush_tlb_others(const struct cpumask *cpus,
> struct mm_struct *mm, unsigned long start,
> unsigned long end)
> {
> - struct {
> - struct mmuext_op op;
> -#ifdef CONFIG_SMP
> - DECLARE_BITMAP(mask, num_processors);
> -#else
> - DECLARE_BITMAP(mask, NR_CPUS);
> -#endif
> - } *args;
> struct multicall_space mcs;
> + struct mmuext_op *op;
> + struct cpumask *mask;
>
> trace_xen_mmu_flush_tlb_others(cpus, mm, start, end);
>
> if (cpumask_empty(cpus))
> return; /* nothing to do */
>
> - mcs = xen_mc_entry(sizeof(*args));
> - args = mcs.args;
> - args->op.arg2.vcpumask = to_cpumask(args->mask);
> +#ifdef CONFIG_SMP
> + mcs = xen_mc_entry(sizeof(struct mmuext_op) + BITS_TO_LONGS(num_processors)*sizeof(unsigned long));
> +#else
> + mcs = xen_mc_entry(sizeof(struct mmuext_op) + BITS_TO_LONGS(NR_CPUS)*sizeof(unsigned long));
> +#endif
> + /* Extract fields */
> + op = mcs.args;
> + mask = to_cpumask(mcs.args + sizeof(struct mmuext_op));
> +
> + op->arg2.vcpumask = mask;
>
> /* Remove us, and any offline CPUS. */
> - cpumask_and(to_cpumask(args->mask), cpus, cpu_online_mask);
> - cpumask_clear_cpu(smp_processor_id(), to_cpumask(args->mask));
> + cpumask_and(mask, cpus, cpu_online_mask);
> + cpumask_clear_cpu(smp_processor_id(), mask);
>
> - args->op.cmd = MMUEXT_TLB_FLUSH_MULTI;
> + op->cmd = MMUEXT_TLB_FLUSH_MULTI;
> if (end != TLB_FLUSH_ALL && (end - start) <= PAGE_SIZE) {
> - args->op.cmd = MMUEXT_INVLPG_MULTI;
> - args->op.arg1.linear_addr = start;
> + op->cmd = MMUEXT_INVLPG_MULTI;
> + op->arg1.linear_addr = start;
> }
>
> - MULTI_mmuext_op(mcs.mc, &args->op, 1, NULL, DOMID_SELF);
> + MULTI_mmuext_op(mcs.mc, op, 1, NULL, DOMID_SELF);
>
> xen_mc_issue(PARAVIRT_LAZY_MMU);
> }
> diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c
> index b3ff57d61dde..53d8baa741fb 100644
> --- a/drivers/md/bcache/sysfs.c
> +++ b/drivers/md/bcache/sysfs.c
> @@ -731,6 +731,11 @@ static struct attribute *bch_cache_set_internal_files[] = {
> };
> KTYPE(bch_cache_set_internal);
>
> +static int __bch_cache_cmp(const void *l, const void *r)
> +{
> + return *((uint16_t *) r) - *((uint16_t *) l);
> +}
> +
> SHOW(__bch_cache)
> {
> struct cache *ca = container_of(kobj, struct cache, kobj);
> @@ -755,9 +760,6 @@ SHOW(__bch_cache)
> CACHE_REPLACEMENT(&ca->sb));
>
> if (attr == &sysfs_priority_stats) {
> - int cmp(const void *l, const void *r)
> - { return *((uint16_t *) r) - *((uint16_t *) l); }
> -
> struct bucket *b;
> size_t n = ca->sb.nbuckets, i;
> size_t unused = 0, available = 0, dirty = 0, meta = 0;
> @@ -786,7 +788,7 @@ SHOW(__bch_cache)
> p[i] = ca->buckets[i].prio;
> mutex_unlock(&ca->set->bucket_lock);
>
> - sort(p, n, sizeof(uint16_t), cmp, NULL);
> + sort(p, n, sizeof(uint16_t), __bch_cache_cmp, NULL);
>
> while (n &&
> !cached[n - 1])
> diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
> index 38c58e19cfce..f3d0859c07da 100644
> --- a/drivers/md/raid10.c
> +++ b/drivers/md/raid10.c
> @@ -711,11 +711,9 @@ static int raid10_mergeable_bvec(struct mddev *mddev,
> max = biovec->bv_len;
>
> if (mddev->merge_check_needed) {
> - struct {
> - struct r10bio r10_bio;
> - struct r10dev devs[conf->copies];
> - } on_stack;
> - struct r10bio *r10_bio = &on_stack.r10_bio;
> + /* Allocate space for r10bio on stack */
> + u8 r10bio_on_stack[sizeof(struct r10bio) + conf->copies * sizeof(struct r10dev)];
> + struct r10bio *r10_bio = (struct r10bio*) r10bio_on_stack;
> int s;
> if (conf->reshape_progress != MaxSector) {
> /* Cannot give any guidance during reshape */
> @@ -4548,11 +4546,9 @@ static int handle_reshape_read_error(struct mddev *mddev,
> /* Use sync reads to get the blocks from somewhere else */
> int sectors = r10_bio->sectors;
> struct r10conf *conf = mddev->private;
> - struct {
> - struct r10bio r10_bio;
> - struct r10dev devs[conf->copies];
> - } on_stack;
> - struct r10bio *r10b = &on_stack.r10_bio;
> + /* Allocate space for r10bio on stack */
> + u8 r10bio_on_stack[sizeof(struct r10bio) + conf->copies * sizeof(struct r10dev)];
> + struct r10bio *r10b = (struct r10bio *) r10bio_on_stack;
> int slot = 0;
> int idx = 0;
> struct bio_vec *bvec = r10_bio->master_bio->bi_io_vec;
> diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
> index fa8f5046afe9..9d15566521a7 100644
> --- a/drivers/net/ppp/ppp_generic.c
> +++ b/drivers/net/ppp/ppp_generic.c
> @@ -269,9 +269,9 @@ static void ppp_ccp_peek(struct ppp *ppp, struct sk_buff *skb, int inbound);
> static void ppp_ccp_closed(struct ppp *ppp);
> static struct compressor *find_compressor(int type);
> static void ppp_get_stats(struct ppp *ppp, struct ppp_stats *st);
> -static struct ppp *ppp_create_interface(struct net *net, int unit,
> - struct file *file, int *retp);
> +static struct ppp *ppp_create_interface(struct net *net, int unit, int *retp);
> static void init_ppp_file(struct ppp_file *pf, int kind);
> +static void ppp_shutdown_interface(struct ppp *ppp);
> static void ppp_destroy_interface(struct ppp *ppp);
> static struct ppp *ppp_find_unit(struct ppp_net *pn, int unit);
> static struct channel *ppp_find_channel(struct ppp_net *pn, int unit);
> @@ -392,10 +392,8 @@ static int ppp_release(struct inode *unused, struct file *file)
> file->private_data = NULL;
> if (pf->kind == INTERFACE) {
> ppp = PF_TO_PPP(pf);
> - rtnl_lock();
> if (file == ppp->owner)
> - unregister_netdevice(ppp->dev);
> - rtnl_unlock();
> + ppp_shutdown_interface(ppp);
> }
> if (atomic_dec_and_test(&pf->refcnt)) {
> switch (pf->kind) {
> @@ -595,10 +593,8 @@ static long ppp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
> mutex_lock(&ppp_mutex);
> if (pf->kind == INTERFACE) {
> ppp = PF_TO_PPP(pf);
> - rtnl_lock();
> if (file == ppp->owner)
> - unregister_netdevice(ppp->dev);
> - rtnl_unlock();
> + ppp_shutdown_interface(ppp);
> }
> if (atomic_long_read(&file->f_count) < 2) {
> ppp_release(NULL, file);
> @@ -842,10 +838,11 @@ static int ppp_unattached_ioctl(struct net *net, struct ppp_file *pf,
> /* Create a new ppp unit */
> if (get_user(unit, p))
> break;
> - ppp = ppp_create_interface(net, unit, file, &err);
> + ppp = ppp_create_interface(net, unit, &err);
> if (!ppp)
> break;
> file->private_data = &ppp->file;
> + ppp->owner = file;
> err = -EFAULT;
> if (put_user(ppp->file.index, p))
> break;
> @@ -919,16 +916,6 @@ static __net_init int ppp_init_net(struct net *net)
> static __net_exit void ppp_exit_net(struct net *net)
> {
> struct ppp_net *pn = net_generic(net, ppp_net_id);
> - struct ppp *ppp;
> - LIST_HEAD(list);
> - int id;
> -
> - rtnl_lock();
> - idr_for_each_entry(&pn->units_idr, ppp, id)
> - unregister_netdevice_queue(ppp->dev, &list);
> -
> - unregister_netdevice_many(&list);
> - rtnl_unlock();
>
> idr_destroy(&pn->units_idr);
> }
> @@ -1101,28 +1088,8 @@ static int ppp_dev_init(struct net_device *dev)
> return 0;
> }
>
> -static void ppp_dev_uninit(struct net_device *dev)
> -{
> - struct ppp *ppp = netdev_priv(dev);
> - struct ppp_net *pn = ppp_pernet(ppp->ppp_net);
> -
> - ppp_lock(ppp);
> - ppp->closing = 1;
> - ppp_unlock(ppp);
> -
> - mutex_lock(&pn->all_ppp_mutex);
> - unit_put(&pn->units_idr, ppp->file.index);
> - mutex_unlock(&pn->all_ppp_mutex);
> -
> - ppp->owner = NULL;
> -
> - ppp->file.dead = 1;
> - wake_up_interruptible(&ppp->file.rwait);
> -}
> -
> static const struct net_device_ops ppp_netdev_ops = {
> .ndo_init = ppp_dev_init,
> - .ndo_uninit = ppp_dev_uninit,
> .ndo_start_xmit = ppp_start_xmit,
> .ndo_do_ioctl = ppp_net_ioctl,
> .ndo_get_stats64 = ppp_get_stats64,
> @@ -2700,8 +2667,8 @@ ppp_get_stats(struct ppp *ppp, struct ppp_stats *st)
> * or if there is already a unit with the requested number.
> * unit == -1 means allocate a new number.
> */
> -static struct ppp *ppp_create_interface(struct net *net, int unit,
> - struct file *file, int *retp)
> +static struct ppp *
> +ppp_create_interface(struct net *net, int unit, int *retp)
> {
> struct ppp *ppp;
> struct ppp_net *pn;
> @@ -2721,7 +2688,6 @@ static struct ppp *ppp_create_interface(struct net *net, int unit,
> ppp->mru = PPP_MRU;
> init_ppp_file(&ppp->file, INTERFACE);
> ppp->file.hdrlen = PPP_HDRLEN - 2; /* don't count proto bytes */
> - ppp->owner = file;
> for (i = 0; i < NUM_NP; ++i)
> ppp->npmode[i] = NPMODE_PASS;
> INIT_LIST_HEAD(&ppp->channels);
> @@ -2810,6 +2776,34 @@ init_ppp_file(struct ppp_file *pf, int kind)
> }
>
> /*
> + * Take down a ppp interface unit - called when the owning file
> + * (the one that created the unit) is closed or detached.
> + */
> +static void ppp_shutdown_interface(struct ppp *ppp)
> +{
> + struct ppp_net *pn;
> +
> + pn = ppp_pernet(ppp->ppp_net);
> + mutex_lock(&pn->all_ppp_mutex);
> +
> + /* This will call dev_close() for us. */
> + ppp_lock(ppp);
> + if (!ppp->closing) {
> + ppp->closing = 1;
> + ppp_unlock(ppp);
> + unregister_netdev(ppp->dev);
> + unit_put(&pn->units_idr, ppp->file.index);
> + } else
> + ppp_unlock(ppp);
> +
> + ppp->file.dead = 1;
> + ppp->owner = NULL;
> + wake_up_interruptible(&ppp->file.rwait);
> +
> + mutex_unlock(&pn->all_ppp_mutex);
> +}
> +
> +/*
> * Free the memory used by a ppp unit. This is only called once
> * there are no channels connected to the unit and no file structs
> * that reference the unit.
> diff --git a/drivers/net/wimax/i2400m/fw.c b/drivers/net/wimax/i2400m/fw.c
> index c9c711dcd0e6..a89b5685e68b 100644
> --- a/drivers/net/wimax/i2400m/fw.c
> +++ b/drivers/net/wimax/i2400m/fw.c
> @@ -652,7 +652,7 @@ static int i2400m_download_chunk(struct i2400m *i2400m, const void *chunk,
> struct device *dev = i2400m_dev(i2400m);
> struct {
> struct i2400m_bootrom_header cmd;
> - u8 cmd_payload[chunk_len];
> + u8 cmd_payload[];
> } __packed *buf;
> struct i2400m_bootrom_header ack;
>
> diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
> index 71b884dae27c..8aeb7c72aab8 100644
> --- a/drivers/scsi/megaraid/megaraid_sas_base.c
> +++ b/drivers/scsi/megaraid/megaraid_sas_base.c
> @@ -228,7 +228,7 @@ struct megasas_cmd *megasas_get_cmd(struct megasas_instance
> * @instance: Adapter soft state
> * @cmd: Command packet to be returned to free command pool
> */
> -inline void
> +void
> megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
> {
> unsigned long flags;
> diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
> index 48851f6ea6ec..67ffab2d33b9 100644
> --- a/fs/compat_ioctl.c
> +++ b/fs/compat_ioctl.c
> @@ -811,7 +811,7 @@ static int compat_ioctl_preallocate(struct file *file,
> */
> #define XFORM(i) (((i) ^ ((i) << 27) ^ ((i) << 17)) & 0xffffffff)
>
> -#define COMPATIBLE_IOCTL(cmd) XFORM(cmd),
> +#define COMPATIBLE_IOCTL(cmd) XFORM((u32)cmd),
> /* ioctl should not be warned about even if it's not implemented.
> Valid reasons to use this:
> - It is implemented with ->compat_ioctl on some device, but programs
> diff --git a/fs/exofs/Kconfig b/fs/exofs/Kconfig
> index 86194b2f799d..492746f9e61b 100644
> --- a/fs/exofs/Kconfig
> +++ b/fs/exofs/Kconfig
> @@ -1,6 +1,6 @@
> config EXOFS_FS
> tristate "exofs: OSD based file system support"
> - depends on SCSI_OSD_ULD
> + depends on SCSI_OSD_ULD && BROKEN
> help
> EXOFS is a file system that uses an OSD storage device,
> as its backing storage.
> diff --git a/fs/exofs/super.c b/fs/exofs/super.c
> index b795c567b5e1..2357dc538bb7 100644
> --- a/fs/exofs/super.c
> +++ b/fs/exofs/super.c
> @@ -546,27 +546,25 @@ static int exofs_devs_2_odi(struct exofs_dt_device_info *dt_dev,
> static int __alloc_dev_table(struct exofs_sb_info *sbi, unsigned numdevs,
> struct exofs_dev **peds)
> {
> - struct __alloc_ore_devs_and_exofs_devs {
> - /* Twice bigger table: See exofs_init_comps() and comment at
> - * exofs_read_lookup_dev_table()
> - */
> - struct ore_dev *oreds[numdevs * 2 - 1];
> - struct exofs_dev eds[numdevs];
> - } *aoded;
> + size_t numoreds = numdevs * 2 - 1;
> struct exofs_dev *eds;
> unsigned i;
>
> - aoded = kzalloc(sizeof(*aoded), GFP_KERNEL);
> - if (unlikely(!aoded)) {
> + /* Twice bigger table: See exofs_init_comps() and comment at
> + * exofs_read_lookup_dev_table()
> + * XXX: why -1?
> + */
> + sbi->oc.ods = kzalloc(numoreds * sizeof(struct ore_dev) +
> + numdevs * sizeof(struct exofs_dev), GFP_KERNEL);
> + if (unlikely(!sbi->oc.ods)) {
> EXOFS_ERR("ERROR: failed allocating Device array[%d]\n",
> numdevs);
> return -ENOMEM;
> }
>
> - sbi->oc.ods = aoded->oreds;
> - *peds = eds = aoded->eds;
> + *peds = eds = (void *)sbi->oc.ods[numoreds];
> for (i = 0; i < numdevs; ++i)
> - aoded->oreds[i] = &eds[i].ored;
> + sbi->oc.ods[i] = &eds[i].ored;
> return 0;
> }
>
> diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
> index f31fd0dd92c6..e6ef7b3725db 100644
> --- a/fs/nfs/Kconfig
> +++ b/fs/nfs/Kconfig
> @@ -125,7 +125,7 @@ config PNFS_BLOCK
>
> config PNFS_OBJLAYOUT
> tristate
> - depends on NFS_V4_1 && SCSI_OSD_ULD
> + depends on NFS_V4_1 && SCSI_OSD_ULD && BROKEN
> default NFS_V4
>
> config PNFS_FLEXFILE_LAYOUT
> diff --git a/fs/nfs/objlayout/objio_osd.c b/fs/nfs/objlayout/objio_osd.c
> index 5aaed363556a..9259037f1cec 100644
> --- a/fs/nfs/objlayout/objio_osd.c
> +++ b/fs/nfs/objlayout/objio_osd.c
> @@ -301,10 +301,11 @@ objio_alloc_io_state(struct pnfs_layout_hdr *pnfs_layout_type, bool is_reading,
> int ret;
> struct __alloc_objio_state {
> struct objio_state objios;
> - struct pnfs_osd_ioerr ioerrs[objio_seg->oc.numdevs];
> + struct pnfs_osd_ioerr ioerrs[];
> } *aos;
>
> - aos = kzalloc(sizeof(*aos), gfp_flags);
> + aos = kzalloc(sizeof(*aos) + objio_seg->oc.numdevs *
> + sizeof(struct pnfs_osd_ioerr), gfp_flags);
> if (unlikely(!aos))
> return -ENOMEM;
>
> diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
> index ea17cca9e685..9653fdb76a42 100644
> --- a/include/linux/bitmap.h
> +++ b/include/linux/bitmap.h
> @@ -295,7 +295,7 @@ static inline int bitmap_full(const unsigned long *src, unsigned int nbits)
> return find_first_zero_bit(src, nbits) == nbits;
> }
>
> -static inline int bitmap_weight(const unsigned long *src, unsigned int nbits)
> +static __always_inline int bitmap_weight(const unsigned long *src, unsigned int nbits)
> {
> if (small_const_nbits(nbits))
> return hweight_long(*src & BITMAP_LAST_WORD_MASK(nbits));
> diff --git a/include/linux/bitops.h b/include/linux/bitops.h
> index 297f5bda4fdf..e63553386ae7 100644
> --- a/include/linux/bitops.h
> +++ b/include/linux/bitops.h
> @@ -57,7 +57,7 @@ extern unsigned long __sw_hweight64(__u64 w);
> (bit) < (size); \
> (bit) = find_next_zero_bit((addr), (size), (bit) + 1))
>
> -static __inline__ int get_bitmask_order(unsigned int count)
> +static inline int get_bitmask_order(unsigned int count)
> {
> int order;
>
> @@ -65,7 +65,7 @@ static __inline__ int get_bitmask_order(unsigned int count)
> return order; /* We could be slightly more clever with -1 here... */
> }
>
> -static __inline__ int get_count_order(unsigned int count)
> +static inline int get_count_order(unsigned int count)
> {
> int order;
>
> @@ -75,7 +75,7 @@ static __inline__ int get_count_order(unsigned int count)
> return order;
> }
>
> -static inline unsigned long hweight_long(unsigned long w)
> +static __always_inline unsigned long hweight_long(unsigned long w)
> {
> return sizeof(w) == 4 ? hweight32(w) : hweight64(w);
> }
> diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
> index dfaa7b3e9ae9..929a3f0d2b08 100644
> --- a/include/linux/compiler-gcc.h
> +++ b/include/linux/compiler-gcc.h
> @@ -70,14 +70,14 @@
> */
> #if !defined(CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING) || \
> !defined(CONFIG_OPTIMIZE_INLINING) || (__GNUC__ < 4)
> -#define inline inline __attribute__((always_inline)) notrace
> -#define __inline__ __inline__ __attribute__((always_inline)) notrace
> +#define inline inline __attribute__((always_inline)) notrace __maybe_unused
> +#define __inline__ __inline__ __attribute__((always_inline)) notrace __maybe_unused
> #define __inline __inline __attribute__((always_inline)) notrace
> #else
> /* A lot of inline functions can cause havoc with function tracing */
> -#define inline inline notrace
> -#define __inline__ __inline__ notrace
> -#define __inline __inline notrace
> +#define inline inline notrace __maybe_unused
> +#define __inline__ __inline__ notrace __maybe_unused
> +#define __inline __inline notrace __maybe_unused
> #endif
>
> #define __always_inline inline __attribute__((always_inline))
> diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
> index 59915ea5373c..dad72cdea520 100644
> --- a/include/linux/cpumask.h
> +++ b/include/linux/cpumask.h
> @@ -471,7 +471,7 @@ static inline bool cpumask_full(const struct cpumask *srcp)
> * cpumask_weight - Count of bits in *srcp
> * @srcp: the cpumask to count bits (< nr_cpu_ids) in.
> */
> -static inline unsigned int cpumask_weight(const struct cpumask *srcp)
> +static __always_inline unsigned int cpumask_weight(const struct cpumask *srcp)
> {
> return bitmap_weight(cpumask_bits(srcp), nr_cpumask_bits);
> }
> diff --git a/include/linux/kbuild.h b/include/linux/kbuild.h
> index 22a72198c14b..75fa2c3e0e1d 100644
> --- a/include/linux/kbuild.h
> +++ b/include/linux/kbuild.h
> @@ -2,14 +2,14 @@
> #define __LINUX_KBUILD_H
>
> #define DEFINE(sym, val) \
> - asm volatile("\n->" #sym " %0 " #val : : "i" (val))
> + asm volatile("\n@->" #sym " %0 " #val : : "i" (val))
>
> -#define BLANK() asm volatile("\n->" : : )
> +#define BLANK() asm volatile("\n@->" : : )
>
> #define OFFSET(sym, str, mem) \
> DEFINE(sym, offsetof(struct str, mem))
>
> #define COMMENT(x) \
> - asm volatile("\n->#" x)
> + asm volatile("\n@->#" x)
>
> #endif
> diff --git a/include/linux/nodemask.h b/include/linux/nodemask.h
> index 6e85889cf9ab..31d36e6cf2f4 100644
> --- a/include/linux/nodemask.h
> +++ b/include/linux/nodemask.h
> @@ -223,7 +223,7 @@ static inline int __nodes_full(const nodemask_t *srcp, unsigned int nbits)
> }
>
> #define nodes_weight(nodemask) __nodes_weight(&(nodemask), MAX_NUMNODES)
> -static inline int __nodes_weight(const nodemask_t *srcp, unsigned int nbits)
> +static __always_inline int __nodes_weight(const nodemask_t *srcp, unsigned int nbits)
> {
> return bitmap_weight(srcp->bits, nbits);
> }
> diff --git a/include/scsi/osd_types.h b/include/scsi/osd_types.h
> index 48e8a165e136..c7ae7211d15d 100644
> --- a/include/scsi/osd_types.h
> +++ b/include/scsi/osd_types.h
> @@ -28,7 +28,7 @@ struct osd_obj_id {
> osd_id id;
> };
>
> -static const struct __weak osd_obj_id osd_root_object = {0, 0};
> +static const struct osd_obj_id osd_root_object __maybe_unused = {0, 0};
>
> struct osd_attr {
> u32 attr_page;
> diff --git a/lib/Makefile b/lib/Makefile
> index 6897b527581a..068188564a6a 100644
> --- a/lib/Makefile
> +++ b/lib/Makefile
> @@ -55,7 +55,9 @@ obj-$(CONFIG_CHECK_SIGNATURE) += check_signature.o
> obj-$(CONFIG_DEBUG_LOCKING_API_SELFTESTS) += locking-selftest.o
>
> GCOV_PROFILE_hweight.o := n
> +ifneq ($(COMPILER),clang)
> CFLAGS_hweight.o = $(subst $(quote),,$(CONFIG_ARCH_HWEIGHT_CFLAGS))
> +endif
> obj-$(CONFIG_GENERIC_HWEIGHT) += hweight.o
>
> obj-$(CONFIG_BTREE) += btree.o
> diff --git a/lib/mpi/Makefile b/lib/mpi/Makefile
> index 019a68c90144..d5553f6b9f09 100644
> --- a/lib/mpi/Makefile
> +++ b/lib/mpi/Makefile
> @@ -4,6 +4,8 @@
>
> obj-$(CONFIG_MPILIB) = mpi.o
>
> +CFLAGS_KERNEL += $(call cc-option,-fheinous-gnu-extensions)
> +
> mpi-y = \
> generic_mpih-lshift.o \
> generic_mpih-mul1.o \
> diff --git a/lib/mpi/longlong.h b/lib/mpi/longlong.h
> index a89d041592c8..d4477621f1eb 100644
> --- a/lib/mpi/longlong.h
> +++ b/lib/mpi/longlong.h
> @@ -193,8 +193,7 @@ extern UDItype __udiv_qrnnd(UDItype *, UDItype, UDItype, UDItype);
> "rI" ((USItype)(bl)))
> #if defined __ARM_ARCH_2__ || defined __ARM_ARCH_3__
> #define umul_ppmm(xh, xl, a, b) \
> - __asm__ ("%@ Inlined umul_ppmm\n" \
> - "mov %|r0, %2, lsr #16 @ AAAA\n" \
> + __asm__ ("mov %|r0, %2, lsr #16 @ AAAA\n" \
> "mov %|r2, %3, lsr #16 @ BBBB\n" \
> "bic %|r1, %2, %|r0, lsl #16 @ aaaa\n" \
> "bic %0, %3, %|r2, lsl #16 @ bbbb\n" \
> @@ -213,10 +212,8 @@ extern UDItype __udiv_qrnnd(UDItype *, UDItype, UDItype, UDItype);
> : "r0", "r1", "r2")
> #else
> #define umul_ppmm(xh, xl, a, b) \
> - __asm__ ("%@ Inlined umul_ppmm\n" \
> - "umull %r1, %r0, %r2, %r3" \
> - : "=&r" ((USItype)(xh)), \
> - "=r" ((USItype)(xl)) \
> + __asm__ ("umull %1, %0, %2, %3" \
> + : "=&r" ((xh)), "=r" ((xl)) \
> : "r" ((USItype)(a)), \
> "r" ((USItype)(b)) \
> : "r0", "r1")
> diff --git a/lib/mpi/mpi-inline.h b/lib/mpi/mpi-inline.h
> index e2b39852b30a..c245ea31f785 100644
> --- a/lib/mpi/mpi-inline.h
> +++ b/lib/mpi/mpi-inline.h
> @@ -30,7 +30,7 @@
> #define G10_MPI_INLINE_H
>
> #ifndef G10_MPI_INLINE_DECL
> -#define G10_MPI_INLINE_DECL extern inline
> +#define G10_MPI_INLINE_DECL static inline
> #endif
>
> G10_MPI_INLINE_DECL mpi_limb_t
> diff --git a/lib/mpi/mpi-internal.h b/lib/mpi/mpi-internal.h
> index c65dd1bff45a..09e9f13c5ba0 100644
> --- a/lib/mpi/mpi-internal.h
> +++ b/lib/mpi/mpi-internal.h
> @@ -168,20 +168,12 @@ void mpi_rshift_limbs(MPI a, unsigned int count);
> int mpi_lshift_limbs(MPI a, unsigned int count);
>
> /*-- mpihelp-add.c --*/
> -mpi_limb_t mpihelp_add_1(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr,
> - mpi_size_t s1_size, mpi_limb_t s2_limb);
> mpi_limb_t mpihelp_add_n(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr,
> mpi_ptr_t s2_ptr, mpi_size_t size);
> -mpi_limb_t mpihelp_add(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr, mpi_size_t s1_size,
> - mpi_ptr_t s2_ptr, mpi_size_t s2_size);
>
> /*-- mpihelp-sub.c --*/
> -mpi_limb_t mpihelp_sub_1(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr,
> - mpi_size_t s1_size, mpi_limb_t s2_limb);
> mpi_limb_t mpihelp_sub_n(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr,
> mpi_ptr_t s2_ptr, mpi_size_t size);
> -mpi_limb_t mpihelp_sub(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr, mpi_size_t s1_size,
> - mpi_ptr_t s2_ptr, mpi_size_t s2_size);
>
> /*-- mpihelp-cmp.c --*/
> int mpihelp_cmp(mpi_ptr_t op1_ptr, mpi_ptr_t op2_ptr, mpi_size_t size);
> @@ -238,7 +230,7 @@ mpi_limb_t mpihelp_rshift(mpi_ptr_t wp, mpi_ptr_t up, mpi_size_t usize,
> #define W_TYPE_SIZE BITS_PER_MPI_LIMB
> typedef mpi_limb_t UWtype;
> typedef unsigned int UHWtype;
> -#if defined(__GNUC__)
> +#if defined(__GNUC__) && !defined(__clang__)
> typedef unsigned int UQItype __attribute__ ((mode(QI)));
> typedef int SItype __attribute__ ((mode(SI)));
> typedef unsigned int USItype __attribute__ ((mode(SI)));
> diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
> index d3437b82ac25..bd5a3e26a277 100644
> --- a/scripts/Kbuild.include
> +++ b/scripts/Kbuild.include
> @@ -111,12 +111,12 @@ as-instr = $(call try-run,\
> # Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586)
>
> cc-option = $(call try-run,\
> - $(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",$(1),$(2))
> + $(CC) -Werror $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",$(1),$(2))
>
> # cc-option-yn
> # Usage: flag := $(call cc-option-yn,-march=winchip-c6)
> cc-option-yn = $(call try-run,\
> - $(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",y,n)
> + $(CC) -Werror $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",y,n)
>
> # cc-option-align
> # Prefix align with either -falign or -malign
> @@ -126,7 +126,7 @@ cc-option-align = $(subst -functions=0,,\
> # cc-disable-warning
> # Usage: cflags-y += $(call cc-disable-warning,unused-but-set-variable)
> cc-disable-warning = $(call try-run,\
> - $(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(strip $(1)))
> + $(CC) -Werror $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(strip $(1)))
>
> # cc-version
> cc-version = $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh $(CC))
> diff --git a/scripts/Makefile.build b/scripts/Makefile.build
> index 01df30af4d4a..6ff524dac82b 100644
> --- a/scripts/Makefile.build
> +++ b/scripts/Makefile.build
> @@ -174,6 +174,20 @@ cmd_cc_symtypes_c = \
> $(obj)/%.symtypes : $(src)/%.c FORCE
> $(call cmd,cc_symtypes_c)
>
> +# LLVM bitcode
> +# Generate .ll files from .s and .c
> +quiet_cmd_cc_ll_c = CC $(quiet_modtag) $@
> + cmd_cc_ll_c = $(CC) $(c_flags) -emit-llvm -S -o $@ $<
> +
> +$(obj)/%.ll: $(src)/%.c FORCE
> + $(call if_changed_dep,cc_ll_c)
> +
> +quiet_cmd_as_ll_S = CPP $(quiet_modtag) $@
> + cmd_as_ll_S = $(CPP) $(a_flags) -o $@ $<
> +
> +$(obj)/%.ll: $(src)/%.S FORCE
> + $(call if_changed_dep,as_ll_S)
> +
> # C (.c) files
> # The C file is compiled and updated dependency information is generated.
> # (See cmd_cc_o_c + relevant part of rule_cc_o_c)
> diff --git a/scripts/mod/Makefile b/scripts/mod/Makefile
> index c11212ff3510..86f6b852cd93 100644
> --- a/scripts/mod/Makefile
> +++ b/scripts/mod/Makefile
> @@ -6,10 +6,10 @@ modpost-objs := modpost.o file2alias.o sumversion.o
> devicetable-offsets-file := devicetable-offsets.h
>
> define sed-y
> - "/^->/{s:->#\(.*\):/* \1 */:; \
> - s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \
> - s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
> - s:->::; p;}"
> + "/^@->/{s:@->#\(.*\):/* \1 */:; \
> + s:^@->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \
> + s:^@->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
> + s:@->::; p;}"
> endef
>
> quiet_cmd_offsets = GEN $@
> diff --git a/security/apparmor/crypto.c b/security/apparmor/crypto.c
> index 532471d0b3a0..c948247e90c2 100644
> --- a/security/apparmor/crypto.c
> +++ b/security/apparmor/crypto.c
> @@ -32,10 +32,7 @@ unsigned int aa_hash_size(void)
> int aa_calc_profile_hash(struct aa_profile *profile, u32 version, void *start,
> size_t len)
> {
> - struct {
> - struct shash_desc shash;
> - char ctx[crypto_shash_descsize(apparmor_tfm)];
> - } desc;
> + SHASH_DESC_ON_STACK(shash, apparmor_tfm);
> int error = -ENOMEM;
> u32 le32_version = cpu_to_le32(version);
>
> @@ -46,19 +43,19 @@ int aa_calc_profile_hash(struct aa_profile *profile, u32 version, void *start,
> if (!profile->hash)
> goto fail;
>
> - desc.shash.tfm = apparmor_tfm;
> - desc.shash.flags = 0;
> + shash->tfm = apparmor_tfm;
> + shash->flags = 0;
>
> - error = crypto_shash_init(&desc.shash);
> + error = crypto_shash_init(shash);
> if (error)
> goto fail;
> - error = crypto_shash_update(&desc.shash, (u8 *) &le32_version, 4);
> + error = crypto_shash_update(shash, (u8 *) &le32_version, 4);
> if (error)
> goto fail;
> - error = crypto_shash_update(&desc.shash, (u8 *) start, len);
> + error = crypto_shash_update(shash, (u8 *) start, len);
> if (error)
> goto fail;
> - error = crypto_shash_final(&desc.shash, profile->hash);
> + error = crypto_shash_final(shash, profile->hash);
> if (error)
> goto fail;
>



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