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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - WARNING: at drivers/gpu/drm/drm_irq.c:833 send_vblank_event()"
href="https://bugs.freedesktop.org/show_bug.cgi?id=57487">57487</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>WARNING: at drivers/gpu/drm/drm_irq.c:833 send_vblank_event()
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Reporter</th>
<td>chris@chris-wilson.co.uk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>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</pre>
</div>
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