<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 --- - [ILK SNB IVB bisected]CallTrace: WARNING: CPU: 0 PID: 1335 at drivers/gpu/drm/i915/intel_display.c:768 intel_wait_for_vblank+0x159/0x17c [i915]() while running kms_flip_absolute-wf_vblank"
href="https://bugs.freedesktop.org/show_bug.cgi?id=77297">77297</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 SNB IVB bisected]CallTrace: WARNING: CPU: 0 PID: 1335 at drivers/gpu/drm/i915/intel_display.c:768 intel_wait_for_vblank+0x159/0x17c [i915]() while running kms_flip_absolute-wf_vblank
</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=97204" name="attach_97204" title="intel_display.c:768 dmesg">attachment 97204</a> <a href="attachment.cgi?id=97204&action=edit" title="intel_display.c:768 dmesg">[details]</a></span>
intel_display.c:768 dmesg
System Environment:
--------------------------
Platform: ILK SNB IVB
kernel: (drm-intel-nightly)35dc7c8af75a3e5ae52a5469786602ce083a6368
Bug detailed description:
----------------------------
CallTrace: WARNING: CPU: 0 PID: 1335 at
drivers/gpu/drm/i915/intel_display.c:768 intel_wait_for_vblank+0x159/0x17c
[i915]() while running kms_flip_absolute-wf_vblank on ILK and SNB, the same
issue is able to reproduced on IVB while running
igt_kms_flip_bcs-wf_vblank-vs-dpms.
15ba30b2ecea353a5f0d5951f21805ba0714d889 is the first bad commit
commit 15ba30b2ecea353a5f0d5951f21805ba0714d889
Author: Jesse Barnes
Call Trace:
----------------------------
[ 1.276787] WARNING: CPU: 0 PID: 1335 at
drivers/gpu/drm/i915/intel_display.c:768 intel_wait_for_vblank+0x159/0x17c
[i915]()
[ 1.276787] vblank wait timed out
[ 1.276789] Modules linked in: i915(+) video button drm_kms_helper drm
[ 1.276791] CPU: 0 PID: 1335 Comm: udevd Not tainted
3.14.0_drm-intel-nightly_35dc7c_20140410+ #1511
[ 1.276791] Hardware name: Dell Inc. OptiPlex 990/0DXWW6, BIOS A02
02/26/2011
[ 1.276794] 00000000 c1696876 f81fdd0c c102c7ff f81bc8a7 f4e98000 00070040
000016c0
[ 1.276795] fffb710a c102c87a 00000009 f4db5a38 f81fdd0c f4db5a50 f81bc8a7
f81fc580
[ 1.276797] 00000300 f81fdd0c f4e98000 00000001 f4e98000 f5a34000 f81c1936
f53505b4
[ 1.276797] Call Trace:
[ 1.276800] [<c1696876>] ? dump_stack+0x3e/0x4e
[ 1.276804] [<c102c7ff>] ? warn_slowpath_common+0x61/0x74
[ 1.276821] [<f81bc8a7>] ? intel_wait_for_vblank+0x159/0x17c [i915]
[ 1.276822] [<c102c87a>] ? warn_slowpath_fmt+0x29/0x2d
[ 1.276836] [<f81bc8a7>] ? intel_wait_for_vblank+0x159/0x17c [i915]
[ 1.276851] [<f81c1936>] ? ironlake_crtc_enable+0x1fd/0x9ce [i915]
[ 1.276865] [<f81c4121>] ? __intel_set_mode+0xf10/0xff7 [i915]
[ 1.276880] [<f81c5af7>] ? intel_set_mode+0x11/0x25 [i915]
[ 1.276894] [<f81c654e>] ? intel_crtc_set_config+0x646/0x8f1 [i915]
[ 1.276900] [<f808d2c4>] ? drm_mode_set_config_internal+0x39/0x9b [drm]
[ 1.276901] [<f80bf2f2>] ? drm_fb_helper_restore_fbdev_mode+0x7c/0x91
[drm_kms_helper]
[ 1.276915] [<f81b9cd7>] ? lpt_disable_clkout_dp+0xa1/0xa1 [i915]
[ 1.276916] [<f80bf60a>] ? drm_fb_helper_set_par+0x3a/0x59 [drm_kms_helper]
[ 1.276918] [<c12bb1de>] ? fbcon_init+0x2c3/0x3a3
[ 1.276920] [<c12fef23>] ? visual_init+0x97/0xe9
[ 1.276922] [<c1300674>] ? do_bind_con_driver+0x16e/0x275
[ 1.276923] [<c1300887>] ? do_take_over_console+0x10c/0x134
[ 1.276924] [<c12ba9a2>] ? do_fbcon_takeover+0x49/0x88
[ 1.276926] [<c169db0a>] ? notifier_call_chain+0x20/0x42
[ 1.276927] [<c10421b0>] ? __blocking_notifier_call_chain+0x34/0x4b
[ 1.276928] [<c10421d0>] ? blocking_notifier_call_chain+0x9/0xc
[ 1.276930] [<c12b32fa>] ? register_framebuffer+0x1f6/0x248
[ 1.276932] [<f80bedf2>] ? drm_fb_helper_initial_config+0x355/0x3d4
[drm_kms_helper]
[ 1.276951] [<f81e5a52>] ? i915_driver_load+0x950/0xbba [i915]
[ 1.276953] [<c1690579>] ? klist_node_init+0x3a/0x3d
[ 1.276954] [<c1690601>] ? klist_add_tail+0x16/0x30
[ 1.276956] [<c1316e47>] ? device_add+0x45d/0x467
[ 1.276957] [<c100303a>] ? show_stack_log_lvl+0x6d/0x8a
[ 1.276961] [<f808935a>] ? drm_minor_register+0xf5/0x149 [drm]
[ 1.276965] [<f8089410>] ? drm_dev_register+0x62/0xc3 [drm]
[ 1.276969] [<f808b046>] ? drm_get_pci_dev+0xd7/0x16a [drm]
[ 1.276971] [<c12a513d>] ? pci_device_probe+0x4e/0x95
[ 1.276972] [<c1318803>] ? driver_probe_device+0x79/0x168
[ 1.276973] [<c1318936>] ? __driver_attach+0x44/0x5f
[ 1.276975] [<c131761f>] ? bus_for_each_dev+0x37/0x61
[ 1.276976] [<c13184d6>] ? driver_attach+0x11/0x13
[ 1.276976] [<c13188f2>] ? driver_probe_device+0x168/0x168
[ 1.276977] [<c1318213>] ? bus_add_driver+0xad/0x167
[ 1.276978] [<c1318d8a>] ? driver_register+0x6b/0x99
[ 1.276979] [<f8216000>] ? 0xf8215fff
[ 1.276980] [<c10003de>] ? do_one_initcall+0x6d/0xe7
[ 1.276981] [<c169db0a>] ? notifier_call_chain+0x20/0x42
[ 1.276982] [<c10421b9>] ? __blocking_notifier_call_chain+0x3d/0x4b
[ 1.276984] [<c1070be3>] ? load_module+0x140b/0x16e5
[ 1.276985] [<c169dae2>] ? __do_page_fault+0x46c/0x46c
[ 1.276986] [<c1070f2f>] ? SyS_init_module+0x72/0x8a
[ 1.276988] [<c169f5da>] ? sysenter_do_call+0x12/0x22
[ 1.276989] ---[ end trace 6042e7a2be61cb36 ]---
[ 1.297824] usb 1-1: new high-speed USB device number 2 using ehci-pci
Reproduce steps:
----------------------------
1. ./kms_flip --run-subtest absolute-wf_vblank</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the QA Contact for the bug.</li>
<li>You are on the CC list for the bug.</li>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>