<html>
<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 --- - [HSW Regression]call trace appears with booting system"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76723">76723</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>[HSW Regression]call trace appears with booting system
</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=96514" name="attach_96514" title="dmesg">attachment 96514</a> <a href="attachment.cgi?id=96514&action=edit" title="dmesg">[details]</a></span>
dmesg
System Environment:
--------------------------
Platform: Haswell
Kernel: (drm-intel-nightly) 10c69add19dda3677219254d3e9dc3becbb60b97
Bug detailed description:
-----------------------------
Clean boot system, call trace appears in dmesg.
The latest known good commit: b2040f6fed736ccd2319768bc59833abe74148b8
The latest known bad commit: 1bf70dad78613afeedc7e8550bb140ef5a19a2f1
dmesg:
[ 1.050829] WARNING: CPU: 5 PID: 1338 at
drivers/gpu/drm/drm_crtc_helper.c:131
drm_helper_probe_single_connector_modes+0x3f/0x2d2 [drm_kms_helper]()
[ 1.050990] Modules linked in: i915(+) video button drm_kms_helper drm
[ 1.051306] CPU: 5 PID: 1338 Comm: udevd Not tainted
3.14.0-rc7_drm-intel-next-queued_1bf70d_20140328+ #1106
[ 1.051485] Hardware name: Dell Inc. OptiPlex 9020/0DNKMN, BIOS A03
09/17/2013
[ 1.051633] 0000000000000000 0000000000000009 ffffffff81716de3
0000000000000000
[ 1.051926] ffffffff81035052 0000000000000190 ffffffffa00464ba
ffff8800db39e978
[ 1.052217] ffff8800db1f1c00 0000000000000000 ffff8800dbbc0800
0000000000002000
[ 1.052525] Call Trace:
[ 1.052617] [<ffffffff81716de3>] ? dump_stack+0x41/0x51
[ 1.052712] [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
[ 1.052808] [<ffffffffa00464ba>] ?
drm_helper_probe_single_connector_modes+0x3f/0x2d2 [drm_kms_helper]
[ 1.052959] [<ffffffffa00464ba>] ?
drm_helper_probe_single_connector_modes+0x3f/0x2d2 [drm_kms_helper]
[ 1.053109] [<ffffffffa0047318>] ?
drm_fb_helper_probe_connector_modes+0x38/0x4c [drm_kms_helper]
[ 1.053259] [<ffffffffa004827c>] ? drm_fb_helper_initial_config+0x1ab/0x450
[drm_kms_helper]
[ 1.053425] [<ffffffffa008e54a>] ? hsw_write32+0x80/0x9b [i915]
[ 1.053542] [<ffffffffa00c4f9f>] ? i915_driver_load+0xbad/0xe1e [i915]
[ 1.053642] [<ffffffffa000749f>] ? drm_dev_register+0x74/0xe7 [drm]
[ 1.053740] [<ffffffffa0009729>] ? drm_get_pci_dev+0xff/0x1bc [drm]
[ 1.053836] [<ffffffff81384e55>] ? __pm_runtime_resume+0x5b/0x6a
[ 1.053933] [<ffffffff812f8bc9>] ? local_pci_probe+0x35/0x7a
[ 1.054029] [<ffffffff8137c904>] ? driver_probe_device+0x1b3/0x1b3
[ 1.054125] [<ffffffff812f8e6c>] ? pci_device_probe+0xcc/0xf0
[ 1.054220] [<ffffffff8137c7e3>] ? driver_probe_device+0x92/0x1b3
[ 1.054316] [<ffffffff8137c957>] ? __driver_attach+0x53/0x73
[ 1.054411] [<ffffffff8137b0be>] ? bus_for_each_dev+0x4e/0x7f
[ 1.054515] [<ffffffff8137c065>] ? bus_add_driver+0xe2/0x1c7
[ 1.054610] [<ffffffff8137ce9a>] ? driver_register+0x82/0xb5
[ 1.054704] [<ffffffffa00fc000>] ? 0xffffffffa00fbfff
[ 1.054798] [<ffffffff81000296>] ? do_one_initcall+0x78/0xfa
[ 1.054893] [<ffffffff8104e4af>] ? __blocking_notifier_call_chain+0x4f/0x5d
[ 1.054991] [<ffffffff8107fe72>] ? load_module+0x1745/0x1a13
[ 1.055087] [<ffffffff8107da98>] ? mod_kobject_put+0x42/0x42
[ 1.055181] [<ffffffff810801d0>] ? SyS_init_module+0x90/0x9b
[ 1.055277] [<ffffffff817214a2>] ? system_call_fastpath+0x16/0x1b
[ 1.055372] ---[ end trace d52081c360bd53db ]---</pre>
</div>
</p>
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