[Bug 78247] New: [BDW]igt/gem_concurrent_blit unable to exit sporadically

Sun May 4 01:31:23 PDT 2014

https://bugs.freedesktop.org/show_bug.cgi?id=78247

          Priority: medium
            Bug ID: 78247
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [BDW]igt/gem_concurrent_blit unable to exit
                    sporadically
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: jinxianx.guo at intel.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 98405
  --> https://bugs.freedesktop.org/attachment.cgi?id=98405&action=edit
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

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