Bug 57487 - WARNING: at drivers/gpu/drm/drm_irq.c:833 send_vblank_event()
Summary: WARNING: at drivers/gpu/drm/drm_irq.c:833 send_vblank_event()
Status: CLOSED FIXED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-11-24 15:52 UTC by Chris Wilson
Modified: 2017-07-24 22:59 UTC (History)
0 users

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i915 platform:
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Attachments

Description Chris Wilson 2012-11-24 15:52:28 UTC 
WARN_ON_SMP(!spin_is_locked(&dev->event_lock));

[  625.053545] WARNING: at drivers/gpu/drm/drm_irq.c:833 send_vblank_event+0xf1/0x100()
[  625.053548] Hardware name: 08946JG
[  625.053552] Pid: 2353, comm: Xorg Not tainted 3.7.0-rc4+ #503
[  625.053554] Call Trace:
[  625.053564]  [<ffffffff810378fa>] warn_slowpath_common+0x7a/0xb0
[  625.053569]  [<ffffffff81037a1a>] warn_slowpath_null+0x1a/0x20
[  625.053574]  [<ffffffff812ba2e1>] send_vblank_event+0xf1/0x100
[  625.053579]  [<ffffffff812bb94d>] drm_vblank_off+0x13d/0x170
[  625.053586]  [<ffffffff812fcea3>] ironlake_crtc_disable+0x93/0x8c0
[  625.053593]  [<ffffffff8110d970>] ? __pollwait+0xf0/0xf0
[  625.053598]  [<ffffffff81302457>] intel_crtc_update_dpms+0x77/0xb0
[  625.053603]  [<ffffffff81307c77>] intel_crt_dpms+0x77/0xc0
[  625.053609]  [<ffffffff812c39c6>] ? drm_mode_object_find+0x66/0x90
[  625.053614]  [<ffffffff812c83ad>] drm_mode_obj_set_property_ioctl+0x32d/0x340
[  625.053619]  [<ffffffff812c83f0>] drm_mode_connector_property_set_ioctl+0x30/0x40
[  625.053624]  [<ffffffff812b7b3c>] drm_ioctl+0x43c/0x510
[  625.053629]  [<ffffffff812c83c0>] ? drm_mode_obj_set_property_ioctl+0x340/0x340
[  625.053633]  [<ffffffff8110cc59>] do_vfs_ioctl+0x99/0x580
[  625.053641]  [<ffffffff8106ddb6>] ? pick_next_task_fair+0x76/0x1a0
[  625.053648]  [<ffffffff814575ae>] ? __schedule+0x25e/0x590
[  625.053651]  [<ffffffff8110d190>] sys_ioctl+0x50/0x90
[  625.053657]  [<ffffffff814596c2>] system_call_fastpath+0x16/0x1b
Comment 1 Daniel Vetter 2012-11-24 15:54:10 UTC 
Should get fixed once Imre's event spinlock fixes series goes into drm-next. That patch series is currently hanging out in the drm-exynos-next tree (since exynos required additional changes to get the locking right).
Comment 2 Daniel Vetter 2012-12-05 20:32:18 UTC 
Imre's fixes have now landed in drm-next, which is included in -nightly.

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