[Bug 101460] [GLK] general protection fault in i915_gem_object_info

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101460

--- Comment #6 from Humberto Israel Perez Rodriguez <humberto.i.perez.rodriguez at intel.com> ---
(In reply to Chris Wilson from comment #5)
> commit 0caf81b5c53d9bd332a95dbcb44db8de0b397a7c
> Author: Chris Wilson <chris at chris-wilson.co.uk>
> Date:   Sat Jun 17 12:57:44 2017 +0100
> 
>     drm/i915: Hold struct_mutex for per-file stats in debugfs/i915_gem_object
>     
>     As we walk the obj->vma_list in per_file_stats(), we need to hold
>     struct_mutex to prevent alteration of that list.

Hi

after test this kernel commit and send some cold reboots to my GLK i noticed
that i got some relevant kernel messages


kern  :emerg : [Sun Dec  4 14:33:10 2016] mce: [Hardware Error]: CPU 0: Machine
Check: 0 Bank 4: a600000000020408
kern  :emerg : [Sun Dec  4 14:33:10 2016] mce: [Hardware Error]: TSC 0 ADDR
fef4c9a0
kern  :emerg : [Sun Dec  4 14:33:10 2016] mce: [Hardware Error]: PROCESSOR
0:706a0 TIME 0 SOCKET 0 APIC 0 microcode 1c



kern  :err   : [Sun Dec  4 14:33:10 2016] ACPI Error: Invalid type
(RegionField) for target of Scope operator [SSP2] (Cannot override)
(20170303/dswload-273)
kern  :err   : [Sun Dec  4 14:33:10 2016] ACPI Exception: AE_AML_OPERAND_TYPE,
During name lookup/catalog (20170303/psobject-241)
kern  :err   : [Sun Dec  4 14:33:10 2016] ACPI Exception: AE_AML_OPERAND_TYPE,
(SSDT: RVPRtd3) while loading table (20170303/tbxfload-228)
kern  :err   : [Sun Dec  4 14:33:10 2016] ACPI Error: 1 table load failures, 11
successful (20170303/tbxfload-246)
kern  :err   : [Sun Dec  4 14:33:19 2016] uvesafb: Getting VBE info block
failed (eax=0x4f00, err=1)
kern  :err   : [Sun Dec  4 14:33:19 2016] uvesafb: vbe_init() failed with -22
kern  :err   : [Sun Dec  4 14:33:19 2016] atkbd serio0: Failed to deactivate
keyboard on isa0060/serio0
kern  :err   : [Sun Dec  4 14:33:20 2016] atkbd serio0: Failed to enable
keyboard on isa0060/serio0


please see the dmesg.log attached

i am not sure if this is the same failure for this bug, i will be waiting for a
response if i should to create another bug for this or not.

BTW, i tested with latest drm-intel and it was the same failure

commit bf26e1dbbba24a7697559f1131d4be99747b7646
Author:     Martin Peres <martin.peres at linux.intel.com>
AuthorDate: Tue Jun 27 16:59:42 2017 +0300
Commit:     Martin Peres <martin.peres at linux.intel.com>
CommitDate: Tue Jun 27 16:59:42 2017 +0300

    drm-tip: 2017y-06m-27d-13h-59m-07s UTC integration manifest

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