[Bug 87182] New: [HSW Regression]igt/pm_rps/reset causes drivers/gpu/drm/i915/i915_irq.c:284 gen6_enable_rps_interrupts+0x34/0x94 [i915]
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Tue Dec 9 22:09:18 PST 2014
https://bugs.freedesktop.org/show_bug.cgi?id=87182
Bug ID: 87182
Summary: [HSW Regression]igt/pm_rps/reset causes
drivers/gpu/drm/i915/i915_irq.c:284
gen6_enable_rps_interrupts+0x34/0x94 [i915]
Product: DRI
Version: unspecified
Hardware: All
OS: Linux (All)
Status: NEW
Severity: normal
Priority: high
Component: DRM/Intel
Assignee: intel-gfx-bugs at lists.freedesktop.org
Reporter: huax.lu at intel.com
QA Contact: intel-gfx-bugs at lists.freedesktop.org
CC: intel-gfx-bugs at lists.freedesktop.org
Created attachment 110665
--> https://bugs.freedesktop.org/attachment.cgi?id=110665&action=edit
dmesg
==System Environment==
--------------------------
Regression: Yes
good commit: 0b5492d6b53251acab99b1906a328fac56e08be3
bad commit: b05ddd4dfb6303ee9dde359ec913aa7a918fd81
Non-working platforms: HSW
==kernel==
--------------------------
drm-intel-nightly/34d267c2ba9c0845432baf959a2c4deed87f3ee4
drm-intel-next-queued/b05ddd4dfb6303ee9dde359ec913aa7a918fd81
drm-intel-fixes/b0616c5306b342ceca07044dbc4f917d95c4f825
==Bug detailed description==
-----------------------------
It happens on drm-intel-nightly and drm-intel-next-queued kernel, works well on
drm-intel-fixes kernel.
output:
IGT-Version: 1.8-gf333981 (x86_64) (Linux:
3.18.0_drm-intel-nightly_34d267_20141209+ x86_64)
Subtest reset: SUCCESS (40.392s)
dmesg:
[ 161.967391] ------------[ cut here ]------------
[ 161.968586] WARNING: CPU: 0 PID: 794 at drivers/gpu/drm/i915/i915_irq.c:284
gen6_enable_rps_interrupts+0x34/0x94 [i915]()
[ 161.969798] WARN_ON(dev_priv->rps.pm_iir)
[ 161.969813] Modules linked in: netconsole configfs battery dm_mod
tpm_infineon wmi tpm_tis tpm acpi_cpufreq i915 button video drm_kms_helper drm
cfbfillrect cfbimgblt cfbcopyarea [last unloaded: netconsole]
[ 161.972961] CPU: 0 PID: 794 Comm: kworker/0:1 Not tainted
3.18.0_drm-intel-nightly_34d267_20141209+ #2416
[ 161.974740] Hardware name: ASUS All Series/Z87-EXPERT, BIOS 1008 05/17/2013
[ 161.976538] Workqueue: events intel_gen6_powersave_work [i915]
[ 161.978341] 0000000000000000 0000000000000009 ffffffff8178d5e2
ffff880255e87d58
[ 161.980173] ffffffff8103a8cc ffff880200000000 ffffffffa00b07e4
0000000000000246
[ 161.982011] ffff880250860000 ffff88025119f800 ffff8802508686d8
0000000000040000
[ 161.983846] Call Trace:
[ 161.985666] [<ffffffff8178d5e2>] ? dump_stack+0x41/0x51
[ 161.987504] [<ffffffff8103a8cc>] ? warn_slowpath_common+0x78/0x90
[ 161.989349] [<ffffffffa00b07e4>] ? gen6_enable_rps_interrupts+0x34/0x94
[i915]
[ 161.991204] [<ffffffff8103a97c>] ? warn_slowpath_fmt+0x45/0x4a
[ 161.993055] [<ffffffffa008bd8f>] ? __gen6_update_ring_freq+0x133/0x14f
[i915]
[ 161.994898] [<ffffffffa00b07e4>] ? gen6_enable_rps_interrupts+0x34/0x94
[i915]
[ 161.996722] [<ffffffffa008dba0>] ? intel_gen6_powersave_work+0xfa9/0xfca
[i915]
[ 161.998534] [<ffffffff8104bbed>] ? process_one_work+0x1ae/0x31c
[ 162.000329] [<ffffffff8104bfd5>] ? worker_thread+0x255/0x350
[ 162.002108] [<ffffffff8104bd80>] ? process_scheduled_works+0x25/0x25
[ 162.003878] [<ffffffff8104f81e>] ? kthread+0xc5/0xcd
[ 162.005635] [<ffffffff8104f759>] ? kthread_freezable_should_stop+0x40/0x40
[ 162.007401] [<ffffffff81792bec>] ? ret_from_fork+0x7c/0xb0
[ 162.009170] [<ffffffff8104f759>] ? kthread_freezable_should_stop+0x40/0x40
[ 162.010929] ---[ end trace 2bba719a75829b0c ]---
Reproduce steps:
-------------------------
1. ./pm_rps --run-subtest reset
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