[Bug 86644] [IVB Bisected]3cc134e drm/i915: sanitize rps irq enabling

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=86644

Guo Jinxian <jinxianx.guo at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |ASSIGNED

--- Comment #2 from Guo Jinxian <jinxianx.guo at intel.com> ---
(In reply to Imre Deak from comment #1)
> (In reply to Guo Jinxian from comment #0)
> > ==System Environment==
> > --------------------------
> > Regression: Yes
> > 
> > Non-working platforms: IVB
> > 
> > ==kernel==
> > --------------------------
> > origin/drm-intel-nightly: 0f8cb1fb8e01c53f9ad47344e9448d72df49fcf2
> >     drm-intel-nightly: 2014y-11m-21d-19h-18m-03s UTC integration manifest
> > 
> > ==Bug detailed description==
> 
> > (IVB)igt/gem_bad_reloc/negative-reloc PASS->NSPT
> 
> Could you recheck if the bisect result for the above is correct? That is run
> the test on the parent commit of "drm/i915: sanitize rps irq enabling".
Case igt/gem_bad_reloc/negative-reloc always skips, I didn't find good commit.
> 
> > (IVB)igt/gem_reset_stats/ban-render PASS->DMESG_WARN
> > (IVB)igt/gem_reset_stats/ban-blt PASS->DMESG_WARN
> 
> Could you check if the following two patches fixes the above two problems:
> 
> http://lists.freedesktop.org/archives/intel-gfx/2014-November/055970.html

The failure still able to reproduce with this patch.

[root at x-ivb9 tests]# ./gem_reset_stats --run-subtest ban-render
IGT-Version: 1.8-gd807891 (x86_64) (Linux: 3.18.0-rc6_glody_d10cf9_20141125+
x86_64)
Subtest ban-render: SUCCESS (12.087s)
Test requirement not met in function gem_require_ring, file
ioctl_wrappers.c:881:
Test requirement: gem_has_vebox(fd)
[root at x-ivb9 tests]# echo $?
0
[root at x-ivb9 tests]# dmesg -r|egrep "<[1-4]>"|grep drm
<4>[   74.858431] WARNING: CPU: 3 PID: 2338 at
drivers/gpu/drm/i915/i915_irq.c:284 gen6_enable_rps_interrupts+0x34/0x95
[i915]()
<4>[   74.858494]  battery dm_mod tpm_tis tpm acpi_cpufreq i915 button video
drm_kms_helper drm
[root at x-ivb9 tests]# ./gem_reset_stats --run-subtest ban-blt
IGT-Version: 1.8-gd807891 (x86_64) (Linux: 3.18.0-rc6_glody_d10cf9_20141125+
x86_64)
Subtest ban-blt: SUCCESS (11.789s)
Test requirement not met in function gem_require_ring, file
ioctl_wrappers.c:881:
Test requirement: gem_has_vebox(fd)
[root at x-ivb9 tests]# dmesg -r|egrep "<[1-4]>"|grep drm
<4>[   74.858431] WARNING: CPU: 3 PID: 2338 at
drivers/gpu/drm/i915/i915_irq.c:284 gen6_enable_rps_interrupts+0x34/0x95
[i915]()
<4>[   74.858494]  battery dm_mod tpm_tis tpm acpi_cpufreq i915 button video
drm_kms_helper drm
<4>[  102.860728] WARNING: CPU: 2 PID: 707 at
drivers/gpu/drm/i915/i915_irq.c:284 gen6_enable_rps_interrupts+0x34/0x95
[i915]()
<4>[  102.860791]  battery dm_mod tpm_tis tpm acpi_cpufreq i915 button video
drm_kms_helper drm

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