<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 --- - [BDW]igt/gem_concurrent_blit unable to exit sporadically"
href="https://bugs.freedesktop.org/show_bug.cgi?id=78247">78247</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>[BDW]igt/gem_concurrent_blit unable to exit sporadically
</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>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=98405" name="attach_98405" title="dmesg">attachment 98405</a> <a href="attachment.cgi?id=98405&action=edit" title="dmesg">[details]</a></span>
dmesg
*System Environment:
--------------------------
Platform: IVB HSW ULT
kernel:
-nightly: 08ce6614d07dd1e426109672a5e323317c8d6ec7(fails)
-queued: e5c03ca362819ba8ffbe5674340b61b9cd75de8f (fails)
-fixes: 9bbfd20abe5025adbb0ac75160bd2e41158a9e83 (fails)
*Bug detailed description:
-----------------------------
igt/gem_concurrent_blit unable to exit sporadically, and here has CallTrace in
demsg.
Output:
IGT-Version: 1.6-gc864279 (x86_64) (Linux:
3.15.0-rc2_drm-intel-nightly_08ce66_20140504+ x86_64)
using 2x512 buffers, each 1MiB
Subtest prw-overwrite-source: SUCCESS
Subtest prw-early-read: SUCCESS
Subtest prw-gpu-read-after-write: SUCCESS
Subtest prw-overwrite-source-interruptible: SUCCESS
Subtest prw-early-read-interruptible: SUCCESS
Subtest prw-gpu-read-after-write-interruptible: SUCCESS
Subtest prw-overwrite-source-forked: SUCCESS
Subtest prw-early-read-forked: SUCCESS
Subtest prw-gpu-read-after-write-forked: SUCCESS
Subtest cpu-overwrite-source: SUCCESS
Subtest cpu-early-read: SUCCESS
Subtest cpu-gpu-read-after-write: SUCCESS
Subtest cpu-overwrite-source-interruptible: SUCCESS
Subtest cpu-early-read-interruptible: SUCCESS
Subtest cpu-gpu-read-after-write-interruptible: SUCCESS
Subtest cpu-overwrite-source-forked: SUCCESS
*CallTrace:
----------------------------
[ 291.988284] Oops: 0002 [#1] SMP
[ 291.988326] Modules linked in: dm_mod snd_hda_codec_hdmi iTCO_wdt
iTCO_vendor_support ppdev snd_hda_intel snd_hda_controller snd_hda_codec
snd_hwdep snd_pcm snd_timer i2c_i801 pcspkr lpc_ich mfd_core snd soundcore
battery parport_pc parport ac acpi_cpufreq i915 video button drm_kms_helper drm
[ 291.988698] CPU: 2 PID: 4553 Comm: gem_concurrent_ Not tainted
3.15.0-rc2_drm-intel-nightly_08ce66_20140504+ #2286
[ 291.988803] task: ffff88000232f620 ti: ffff8800a9b02000 task.ti:
ffff8800a9b02000
[ 291.988879] RIP: 0010:[<ffffffff812e6723>] [<ffffffff812e6723>]
iowrite32+0xe/0x28
[ 291.988965] RSP: 0018:ffff8800a9b03c40 EFLAGS: 00010292
[ 291.989021] RAX: 0000000010800001 RBX: ffff880002e45780 RCX:
000000000001ffc0
[ 291.989095] RDX: 000000000001ffd0 RSI: ffffc900110a0000 RDI:
ffffc900110a0000
[ 291.989167] RBP: ffff880002e44000 R08: 000000000ecd1000 R09:
000000000ecd1000
[ 291.989239] R10: 000000000ecd2000 R11: 000000000ecd2000 R12:
ffff880145b29a00
[ 291.989313] R13: 0000000000000000 R14: ffff880002e45780 R15:
ffff880145cf7e40
[ 291.989386] FS: 00007f2144ea08c0(0000) GS:ffff88014f480000(0000)
knlGS:0000000000000000
[ 291.989468] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 291.989528] CR2: ffffc900110a0000 CR3: 000000007ae05000 CR4:
00000000003407e0
[ 291.989601] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 291.989674] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[ 291.989746] Stack:
[ 291.989770] ffffffffa008a9c1 ffff880145b29a00 ffffffff00000000
0000000000000000
[ 291.989861] ffffffffa007a17f ffff880002e45780 000000000001ffc0
0001ffa80ecd1000
[ 291.989951] ffff8800aab7cc00 0000000000000000 ffff880002e45780
ffff880002d02200
[ 291.990042] Call Trace:
[ 291.990089] [<ffffffffa008a9c1>] ? gen6_add_request+0x2c/0x88 [i915]
[ 291.990169] [<ffffffffa007a17f>] ? __i915_add_request+0x1c4/0x1e3 [i915]
[ 291.990252] [<ffffffffa0075eb1>] ?
i915_gem_do_execbuffer.isra.16+0xff1/0x1142 [i915]
[ 291.990335] [<ffffffff812e3c23>] ? __sg_page_iter_next+0x2b/0x58
[ 291.990409] [<ffffffffa00764d0>] ? i915_gem_execbuffer2+0x177/0x1fb [i915]
[ 291.990487] [<ffffffffa0002f22>] ? drm_ioctl+0x25c/0x3ad [drm]
[ 291.990559] [<ffffffffa0076359>] ? i915_gem_execbuffer+0x357/0x357 [i915]
[ 291.990632] [<ffffffff812df90b>] ? scnprintf+0x39/0x3e
[ 291.990691] [<ffffffff810ee9b3>] ? do_vfs_ioctl+0x3ec/0x435
[ 291.990753] [<ffffffff810fc6ca>] ? simple_attr_release+0xd/0x11
[ 291.990819] [<ffffffff8104966d>] ? task_work_run+0x78/0x87
[ 291.990879] [<ffffffff810eea45>] ? SyS_ioctl+0x49/0x78
[ 291.990938] [<ffffffff8172d8aa>] ? int_signal+0x12/0x17
[ 291.990996] [<ffffffff8172d622>] ? system_call_fastpath+0x16/0x1b
[ 291.991060] Code: 48 89 f7 76 05 e9 21 5c d4 ff 48 81 fe 00 00 01 00 77 09
48 c7 c6 15 9f 9b 81 eb aa c3 48 81 fe ff ff 03 00 89 f8 48 89 f7 76 03 <89> 06
c3 48 81 fe 00 00 01 00 76 05 0f b7 d6 ef c3 48 c7 c6 49
[ 291.991479] RIP [<ffffffff812e6723>] iowrite32+0xe/0x28
[ 291.991536] RSP <ffff8800a9b03c40>
[ 291.991571] CR2: ffffc900110a0000
[ 291.991606] ---[ end trace ca0d12e45e4caf9c ]---
*Reproduce steps:
----------------------------
1. ./gem_concurrent_blit</pre>
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