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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 --- - [ILK/HSW/BYT/BDW bisected]System booting up with call traces drm_helper_probe_single_connector_modes in drm_crtc_helper.c and drm_mode_probed_add in drm_modes.c"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76725">76725</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>[ILK/HSW/BYT/BDW bisected]System booting up with call traces drm_helper_probe_single_connector_modes in drm_crtc_helper.c and drm_mode_probed_add in drm_modes.c
</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>jinxianx.guo@intel.com
</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>Created <span class=""><a href="attachment.cgi?id=96516" name="attach_96516" title="Call trace dmesg">attachment 96516</a> <a href="attachment.cgi?id=96516&action=edit" title="Call trace dmesg">[details]</a></span>
Call trace dmesg
system Environment:
--------------------------
platform: BDW HSW ILK BYT
Kernel: (drm-intel-next-queued) 57e00b2e1b348b3855f4a3b681d583f8c9cf39fb
Bug detailed description:
-------------------------
CallTrace "WARNING: CPU: 0 PID: 1418 at drivers/gpu/drm/drm_modes.c:119
drm_mode_probed_add+0x27/0x41 [drm]()" and "WARNING: CPU: 0 PID: 1418 at
drivers/gpu/drm/drm_crtc_helper.c:131 " after booting.
these two calltrace occurs by the same patch.
The first bad point is 3ec0db819315c765b3c7bbf7e9dee2fe1f186f47
commit 3ec0db819315c765b3c7bbf7e9dee2fe1f186f47
Author: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
Date: Thu Jan 23 15:06:15 2014 +0100
drm/doc: Integrate drm_modes.c kerneldoc
And clean it up so that there's no kerneldoc warnings. There's still a
lot to do with this one here.
Reviewed-by: Alex Deucher <<a href="mailto:alexander.deucher@amd.com">alexander.deucher@amd.com</a>>
Signed-off-by: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
Reproduce steps:
--------------------
1. Booting the OS
2. dmesg|grep Call
CallTrace1
--------------------
[ 1.661620] WARNING: CPU: 0 PID: 1418 at drivers/gpu/drm/drm_modes.c:119
drm_mode_probed_add+0x27/0x41 [drm]()
[ 1.661627] Modules linked in: i915(+) video button drm_kms_helper drm
[ 1.661640] CPU: 0 PID: 1418 Comm: udevd Tainted: G W
3.14.0-rc7_drm-intel-next-queued_57e00b_20140326+ #1042
[ 1.661647] 0000000000000000 0000000000000009 ffffffff81716de3
0000000000000000
[ 1.661656] ffffffff81035052 000000000000001e ffffffffa0010754
ffff8800a6f4d6c8
[ 1.661665] ffff88014697b400 ffff880149e54800 0000000000000458
0000000000000004
[ 1.661673] Call Trace:
[ 1.661679] [<ffffffff81716de3>] ? dump_stack+0x41/0x51
[ 1.661686] [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
[ 1.661697] [<ffffffffa0010754>] ? drm_mode_probed_add+0x27/0x41 [drm]
[ 1.661708] [<ffffffffa0010754>] ? drm_mode_probed_add+0x27/0x41 [drm]
[ 1.661720] [<ffffffffa0012ac7>] ? do_detailed_mode+0x356/0x36e [drm]
[ 1.661729] [<ffffffff810689ea>] ? console_unlock+0x2c3/0x300
[ 1.661740] [<ffffffffa0012771>] ? do_established_modes+0xce/0xce [drm]
[ 1.661751] [<ffffffffa0011167>] ? drm_for_each_detailed_block+0x36/0xf3
[drm]
[ 1.661760] [<ffffffff812d2e48>] ? idr_mark_full+0x40/0x49
[ 1.661771] [<ffffffffa00132d1>] ? drm_add_edid_modes+0x148/0xd02 [drm]
[ 1.661785] [<ffffffffa000c75f>] ? drm_mode_object_get+0x51/0x60 [drm]
[ 1.661828] [<ffffffffa00a3c08>] ? intel_connector_update_modes+0x1c/0x36
[i915]
[ 1.661870] [<ffffffffa00b13fc>] ? intel_dp_get_modes+0x4e/0xb2 [i915]
[ 1.661879] [<ffffffffa00465b3>] ?
drm_helper_probe_single_connector_modes+0x138/0x2d2 [drm_kms_helper]
[ 1.661890] [<ffffffffa0047318>] ?
drm_fb_helper_probe_connector_modes+0x38/0x4c [drm_kms_helper]
[ 1.661900] [<ffffffffa004827c>] ? drm_fb_helper_initial_config+0x1ab/0x450
[drm_kms_helper]
[ 1.661909] [<ffffffff810d9b6d>] ? kmem_cache_alloc+0x23/0xac
[ 1.661947] [<ffffffffa008db9d>] ? gen8_write32+0x22/0x89 [i915]
[ 1.661981] [<ffffffffa008de10>] ? gen6_read32+0x76/0x81 [i915]
[ 1.662011] [<ffffffffa008db9d>] ? gen8_write32+0x22/0x89 [i915]
[ 1.662053] [<ffffffffa00c4d33>] ? i915_driver_load+0xbad/0xe1e [i915]
[ 1.662068] [<ffffffffa000749f>] ? drm_dev_register+0x74/0xe7 [drm]
[ 1.662082] [<ffffffffa0009729>] ? drm_get_pci_dev+0xff/0x1bc [drm]
[ 1.662089] [<ffffffff81384e55>] ? __pm_runtime_resume+0x5b/0x6a
[ 1.662097] [<ffffffff812f8bc9>] ? local_pci_probe+0x35/0x7a
[ 1.662105] [<ffffffff8137c904>] ? driver_probe_device+0x1b3/0x1b3
[ 1.662113] [<ffffffff812f8e6c>] ? pci_device_probe+0xcc/0xf0
[ 1.662120] [<ffffffff8137c7e3>] ? driver_probe_device+0x92/0x1b3
[ 1.662135] [<ffffffff8137c957>] ? __driver_attach+0x53/0x73
[ 1.662142] [<ffffffff8137b0be>] ? bus_for_each_dev+0x4e/0x7f
[ 1.662149] [<ffffffff8137c065>] ? bus_add_driver+0xe2/0x1c7
[ 1.662155] [<ffffffff8137ce9a>] ? driver_register+0x82/0xb5
[ 1.662159] [<ffffffffa00fc000>] ? 0xffffffffa00fbfff
[ 1.662163] [<ffffffff81000296>] ? do_one_initcall+0x78/0xfa
[ 1.662168] [<ffffffff8104e4af>] ? __blocking_notifier_call_chain+0x4f/0x5d
[ 1.662174] [<ffffffff8107fe72>] ? load_module+0x1745/0x1a13
[ 1.662179] [<ffffffff8107da98>] ? mod_kobject_put+0x42/0x42
[ 1.662184] [<ffffffff810801d0>] ? SyS_init_module+0x90/0x9b
[ 1.662190] [<ffffffff817214a2>] ? system_call_fastpath+0x16/0x1b
[ 1.662193] ---[ end trace 47b212a61ac14e5a ]---
[ 1.662199] [drm:drm_edid_to_eld], ELD: no CEA Extension found
CallTrace2
--------------------
[ 1.662518] WARNING: CPU: 0 PID: 1418 at
drivers/gpu/drm/drm_crtc_helper.c:131
drm_helper_probe_single_connector_modes+0x3f/0x2d2 [drm_kms_helper]()
[ 1.662523] Modules linked in: i915(+) video button drm_kms_helper drm
[ 1.662530] CPU: 0 PID: 1418 Comm: udevd Tainted: G W
3.14.0-rc7_drm-intel-next-queued_57e00b_20140326+ #1042
[ 1.662534] 0000000000000000 0000000000000009 ffffffff81716de3
0000000000000000
[ 1.662539] ffffffff81035052 ffff880100000438 ffffffffa00464ba
ffff88010000043e
[ 1.662544] ffff880149e53400 0000000000000001 ffff8800a6c82000
0000000000002000
[ 1.662549] Call Trace:
[ 1.662554] [<ffffffff81716de3>] ? dump_stack+0x41/0x51
[ 1.662558] [<ffffffff81035052>] ? warn_slowpath_common+0x73/0x8b
[ 1.662563] [<ffffffffa00464ba>] ?
drm_helper_probe_single_connector_modes+0x3f/0x2d2 [drm_kms_helper]
[ 1.662569] [<ffffffffa00464ba>] ?
drm_helper_probe_single_connector_modes+0x3f/0x2d2 [drm_kms_helper]
[ 1.662576] [<ffffffffa0047318>] ?
drm_fb_helper_probe_connector_modes+0x38/0x4c [drm_kms_helper]
[ 1.662582] [<ffffffffa004827c>] ? drm_fb_helper_initial_config+0x1ab/0x450
[drm_kms_helper]
[ 1.662588] [<ffffffff810d9b6d>] ? kmem_cache_alloc+0x23/0xac
[ 1.662615] [<ffffffffa008db9d>] ? gen8_write32+0x22/0x89 [i915]
[ 1.662639] [<ffffffffa008de10>] ? gen6_read32+0x76/0x81 [i915]
[ 1.662661] [<ffffffffa008db9d>] ? gen8_write32+0x22/0x89 [i915]
[ 1.662693] [<ffffffffa00c4d33>] ? i915_driver_load+0xbad/0xe1e [i915]
[ 1.662704] [<ffffffffa000749f>] ? drm_dev_register+0x74/0xe7 [drm]
[ 1.662714] [<ffffffffa0009729>] ? drm_get_pci_dev+0xff/0x1bc [drm]
[ 1.662718] [<ffffffff81384e55>] ? __pm_runtime_resume+0x5b/0x6a
[ 1.662723] [<ffffffff812f8bc9>] ? local_pci_probe+0x35/0x7a
[ 1.662729] [<ffffffff8137c904>] ? driver_probe_device+0x1b3/0x1b3
[ 1.662734] [<ffffffff812f8e6c>] ? pci_device_probe+0xcc/0xf0
[ 1.662739] [<ffffffff8137c7e3>] ? driver_probe_device+0x92/0x1b3
[ 1.662744] [<ffffffff8137c957>] ? __driver_attach+0x53/0x73
[ 1.662749] [<ffffffff8137b0be>] ? bus_for_each_dev+0x4e/0x7f
[ 1.662754] [<ffffffff8137c065>] ? bus_add_driver+0xe2/0x1c7
[ 1.662759] [<ffffffff8137ce9a>] ? driver_register+0x82/0xb5
[ 1.662763] [<ffffffffa00fc000>] ? 0xffffffffa00fbfff
[ 1.662767] [<ffffffff81000296>] ? do_one_initcall+0x78/0xfa
[ 1.662772] [<ffffffff8104e4af>] ? __blocking_notifier_call_chain+0x4f/0x5d
[ 1.662778] [<ffffffff8107fe72>] ? load_module+0x1745/0x1a13
[ 1.662783] [<ffffffff8107da98>] ? mod_kobject_put+0x42/0x42
[ 1.662788] [<ffffffff810801d0>] ? SyS_init_module+0x90/0x9b
[ 1.662793] [<ffffffff817214a2>] ? system_call_fastpath+0x16/0x1b
[ 1.662797] ---[ end trace 47b212a61ac14e5c ]---
[ 1.662800] [drm:drm_helper_probe_single_connector_modes],
[CONNECTOR:18:DP-1]
[ 1.662803] [drm:intel_dp_detect], [CONNECTOR:18:DP-1]
[ 1.662808] [drm:drm_helper_probe_single_connector_modes],
[CONNECTOR:18:DP-1] disconnected</pre>
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