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SubjectRe: [efi] 1c5fecb612: WARNING:at_kernel/iomem.c:#memremap
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On Tue, Dec 03, 2019 at 04:20:51PM +0800, Rong Chen wrote:
> On 12/2/19 5:41 PM, Ard Biesheuvel wrote:
> > On Sun, 1 Dec 2019 at 16:53, kernel test robot <rong.a.chen@intel.com> wrote:
> > > FYI, we noticed the following commit (built with gcc-7):
> > >
> > > commit: 1c5fecb61255aa12a16c4c06335ab68979865914 ("efi: Export Runtime Configuration Interface table to sysfs")
> > > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
> > >
> > > in testcase: rcutorture
> > > with following parameters:
> > >
> > > runtime: 300s
> > > test: default
> > > torture_type: tasks
> > >
> > > test-description: rcutorture is rcutorture kernel module load/unload test.
> > > test-url: https://www.kernel.org/doc/Documentation/RCU/torture.txt
> > >
> > >
> > > on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 8G
> > >
> > > caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
> > >
> > >
> > > +------------------------------------------------+------------+------------+
> > > | | 5828efb95b | 1c5fecb612 |
> > > +------------------------------------------------+------------+------------+
> > > | boot_successes | 0 | 0 |
> > > | boot_failures | 4 | 4 |
> > > | Kernel_panic-not_syncing:No_working_init_found | 4 | 4 |
> > > | WARNING:at_kernel/iomem.c:#memremap | 0 | 4 |
> > > | EIP:memremap | 0 | 4 |
> > > +------------------------------------------------+------------+------------+
> > >
> > I don't understand this result. Doesn't it say the number of failures
> > is the same, but it just fails in a different place? Is there a
> > working config that breaks due to that commit?
>
> Hi Ard,
>
> The results means all boot are failed, parent commit fails at
> "Kernel_panic-not_syncing:No_working_init_found"
> which may causes by the wrong test environment, but the commit "1c5fecb612"
> introduced a new error:
> "WARNING:at_kernel/iomem.c:#memremap".
>
> We prepared the reproduce steps and config file in report mail:
> https://lore.kernel.org/lkml/20191201155238.GR18573@shao2-debian/
>

Hi Rong,

Thank you. I am trying to replicate the issue. I will share findings.

--
With regards,
Narendra K
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