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<head>
<base href="https://bugs.freedesktop.org/" />
</head>
<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 --- - [PNV/ILK regression]igt/drv_hangman causes calltrace and warning"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76055">76055</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[PNV/ILK regression]igt/drv_hangman causes calltrace and warning
</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>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>huax.lu@intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</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>Created <span class=""><a href="attachment.cgi?id=95636" name="attach_95636" title="dmesg">attachment 95636</a> <a href="attachment.cgi?id=95636&action=edit" title="dmesg">[details]</a></span>
dmesg
system Environment:
--------------------------
Platform: Pineview/Ironlake
Kernel: drm-intel-nightly/0cfec5c5de398d725b866528df93e3d198ce385f
Bug detailed description:
-----------------------------
run ./drv_hangman, warning and call trace report in dmesg. It happens on
Pineview/Ironlake with -queued kernel and -nightly kernel.
The latest known good commit: 5b2ff3a84a979e42eaf860b4fa25e5b320f38585
The latest known bad commit: 8b6124a633d8095b0c8364f585edff9c59568a96
output:
checking /sys/kernel/debug/dri/0/i915_error_state
rings stopped
gpu hang correctly detected
checking /sys/class/drm/card0/error
rings stopped
gpu hang correctly detected
[ 56.698710] [drm:i915_gem_open],
[ 60.797612] [drm] stuck on render ring
[ 60.797709] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[ 60.797751] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[ 60.797794] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[ 60.797833] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[ 60.797875] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[ 60.800748] [drm:i915_error_work_func], resetting chip
[ 60.800813] ------------[ cut here ]------------
[ 60.800866] WARNING: CPU: 3 PID: 3238 at
drivers/gpu/drm/i915/i915_gem.c:2342 i915_gem_reset+0xb4/0x31d [i915]()
[ 60.800914] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support
snd_hda_codec_hdmi snd_hda_codec_realtek pcspkr serio_raw firewire_ohci
i2c_i801 lpc_ich firewire_core mfd_core crc_itu_t snd_hda_intel r8169
snd_hda_codec snd_hwdep snd_pcm snd_page_alloc snd_timer snd soundcore floppy
acpi_cpufreq i915 video button drm_kms_helper drm
[ 60.801158] CPU: 3 PID: 3238 Comm: kworker/3:2 Not tainted
3.13.0_drm-intel-next-queued_8b6124_20140131+ #3249
[ 60.801212] Hardware name: Gigabyte Technology Co., Ltd.
H55M-UD2H/H55M-UD2H, BIOS F4 12/02/2009
[ 60.801269] Workqueue: events i915_error_work_func [i915]
[ 60.801298] 0000000000000000 0000000000000009 ffffffff8171193b
0000000000000000
[ 60.801345] ffffffff810331ce 0000000000000009 ffffffffa00711be
0000000000000206
[ 60.801401] ffff880002cf9738 ffff880002e21720 0000000000000000
ffff8800d36da800
[ 60.801459] Call Trace:
[ 60.801481] [<ffffffff8171193b>] ? dump_stack+0x41/0x51
[ 60.801513] [<ffffffff810331ce>] ? warn_slowpath_common+0x73/0x8b
[ 60.801550] [<ffffffffa00711be>] ? i915_gem_reset+0xb4/0x31d [i915]
[ 60.801591] [<ffffffffa00711be>] ? i915_gem_reset+0xb4/0x31d [i915]
[ 60.801628] [<ffffffff812cdcfa>] ? kobject_uevent_env+0x3e5/0x427
[ 60.801667] [<ffffffffa005ea96>] ? i915_reset+0x35/0x123 [i915]
[ 60.801711] [<ffffffffa006432a>] ? i915_error_work_func+0xc3/0x11a [i915]
[ 60.801752] [<ffffffff8104487b>] ? process_one_work+0x1bc/0x2ed
[ 60.801784] [<ffffffff810427f8>] ? pwq_activate_delayed_work+0x1e/0x28
[ 60.801814] [<ffffffff81044de9>] ? worker_thread+0x1c7/0x2bc
[ 60.801841] [<ffffffff81044c22>] ? rescuer_thread+0x251/0x251
[ 60.801869] [<ffffffff81049882>] ? kthread+0xc5/0xcd
[ 60.801894] [<ffffffff810497bd>] ? kthread_freezable_should_stop+0x40/0x40
[ 60.801927] [<ffffffff8171be7c>] ? ret_from_fork+0x7c/0xb0
[ 60.801955] [<ffffffff810497bd>] ? kthread_freezable_should_stop+0x40/0x40
[ 60.801986] ---[ end trace 3840533e2d6e6062 ]---
[ 60.802049] [drm] Simulated gpu hang, resetting stop_rings
Reproduce steps:
----------------------------
1. ./drv_hangman</pre>
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