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SubjectRe: [tip:x86/boot] x86/boot/compressed/64: Prepare trampoline memory
On Sun, Feb 11, 2018 at 04:19:38AM -0800, tip-bot for Kirill A. Shutemov wrote:
> Commit-ID: b91993a87aff6dafd60a9c8ce80ebc425161a815
> Gitweb: https://git.kernel.org/tip/b91993a87aff6dafd60a9c8ce80ebc425161a815
> Author: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
> AuthorDate: Fri, 9 Feb 2018 17:22:27 +0300
> Committer: Ingo Molnar <mingo@kernel.org>
> CommitDate: Sun, 11 Feb 2018 12:36:19 +0100
>
> x86/boot/compressed/64: Prepare trampoline memory

This patch breaks X in my test guest image here. The failing Xorg.0.log file
has:

[ 8.504] (II) Loading /usr/lib/xorg/modules/libint10.so
[ 8.506] (II) Module int10: vendor="X.Org Foundation"
[ 8.506] compiled for 1.19.2, module version = 1.0.0
[ 8.506] ABI class: X.Org Video Driver, version 23.0
[ 8.506] (II) VESA(0): initializing int10
[ 8.506] (EE) VESA(0): V_BIOS address 0x0 out of range
[ 8.506] (II) UnloadModule: "vesa"
[ 8.506] (II) UnloadSubModule: "int10"
[ 8.506] (II) Unloading int10
[ 8.506] (II) UnloadSubModule: "vbe"
[ 8.506] (II) Unloading vbe
[ 8.506] (EE) Screen(s) found, but none have a usable configuration.
[ 8.506] (EE)
Fatal server error:
[ 8.506] (EE) no screens found(EE)
[ 8.506] (EE)
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
[ 8.506] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 8.506] (EE)
[ 8.516] (EE) Server terminated with error (1). Closing log file.

note the

[ 8.506] (EE) VESA(0): V_BIOS address 0x0 out of range

line.

I tried reverting this patch but it doesn't revert cleanly so I checked
out the one before it in tip/master:

4440977be134 ("x86/boot/compressed/64: Introduce paging_prepare()")

With it, guest X starts just fine and Xorg.0.log has:

[ 7.594] (II) Loading /usr/lib/xorg/modules/libint10.so
[ 7.595] (II) Module int10: vendor="X.Org Foundation"
[ 7.595] compiled for 1.19.2, module version = 1.0.0
[ 7.595] ABI class: X.Org Video Driver, version 23.0
[ 7.595] (II) VESA(0): initializing int10
[ 7.596] (II) VESA(0): Primary V_BIOS segment is: 0xc000
[ 7.596] (II) VESA(0): VESA BIOS detected
[ 7.596] (II) VESA(0): VESA VBE Version 3.0
[ 7.596] (II) VESA(0): VESA VBE Total Mem: 16384 kB
[ 7.596] (II) VESA(0): VESA VBE OEM: SeaBIOS VBE(C) 2011
[ 7.596] (II) VESA(0): VESA VBE OEM Software Rev: 0.0
[ 7.596] (II) VESA(0): VESA VBE OEM Vendor: SeaBIOS Developers
[ 7.596] (II) VESA(0): VESA VBE OEM Product: SeaBIOS VBE Adapter
[ 7.596] (II) VESA(0): VESA VBE OEM Product Rev: Rev. 1
[ 7.623] (II) VESA(0): Creating default Display subsection in Screen section
"Default Screen Section" for depth/fbbpp 24/32
[ 7.623] (==) VESA(0): Depth 24, (--) framebuffer bpp 32
[ 7.623] (==) VESA(0): RGB weight 888
[ 7.623] (==) VESA(0): Default visual is TrueColor
[ 7.623] (==) VESA(0): Using gamma correction (1.0, 1.0, 1.0)
...

Thx.

--
Regards/Gruss,
Boris.

SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--

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