[Bug 88817] New: [BSW Regression]igt/gem_reset_stats/ban-blt causes system hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88817

            Bug ID: 88817
           Summary: [BSW Regression]igt/gem_reset_stats/ban-blt causes
                    system hang
           Product: DRI
           Version: unspecified
          Hardware: All
                OS: Linux (All)
            Status: NEW
          Severity: critical
          Priority: high
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: huax.lu at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 112866
  --> https://bugs.freedesktop.org/attachment.cgi?id=112866&action=edit
dmesg

==System Environment==
--------------------------
Regression:  yes
good commit: 985850bd145655d10dfcd5a03a3fc38540794ca7
bad commit: 518c2e29d566427433b4ebf51f5863b69f8baf4a

no-working platforms: BSW

==kernel==
--------------------------
drm-intel-nightly/67e9eb08a3b967b1ac6b7ec4588a93a2cb030cae
commit 67e9eb08a3b967b1ac6b7ec4588a93a2cb030cae
Author: Daniel Vetter <daniel.vetter at ffwll.ch>
Date:   Fri Jan 23 17:04:55 2015 +0100

    drm-intel-nightly: 2015y-01m-23d-16h-04m-34s UTC integration manifest

==Bug detailed description==
-----------------------------


output:
IGT-Version: 1.9-g032f30c (x86_64) (Linux:
3.19.0-rc5_drm-intel-nightly_67e9eb_20150126+ x86_64)
Segmentation fault

dmesg:
[  153.932969] CPU: 0 PID: 4456 Comm: gem_reset_stats Not tainted
3.19.0-rc5_drm-intel-nightly_67e9eb_20150126+ #938
[  153.938635] task: ffff880179c14800 ti: ffff880002814000 task.ti:
ffff880002814000
[  153.944313] RIP: 0010:[<ffffffff8110dc7e>]  [<ffffffff8110dc7e>]
kmem_cache_alloc_trace+0xce/0x104
[  153.950084] RSP: 0018:ffff880002817c38  EFLAGS: 00010286
[  153.955806] RAX: 0000000000000000 RBX: ffff880002fde700 RCX:
000000000000413a
[  153.961550] RDX: 0000000000004139 RSI: 00000000000000d0 RDI:
ffff88017b001900
[  153.967290] RBP: ff880179b08d8000 R08: 0000000000015520 R09:
0000000000000000
[  153.972999] R10: ffff880178ac9300 R11: ffff8f908b8ca098 R12:
00000000000000d0
[  153.978703] R13: 0000000000000078 R14: ffffffff81130482 R15:
ffff88017b001900
[  153.984390] FS:  00007f129d48f8c0(0000) GS:ffff88017fc00000(0000)
knlGS:0000000000000000
[  153.990119] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  153.995815] CR2: 00007fb445799148 CR3: 0000000075c3a000 CR4:
00000000001007f0
[  154.001525] Stack:
[  154.007175]  ffff880178b10af0 ffff880002fde700 ffff880178b10af0
ffff880002fde700
[  154.012935]  ffffffffa009276d ffffffffa00934b3 ffff880002817df4
ffffffff81130482
[  154.018685]  ffff880178b10af0 ffffffffa01216ef ffff880002fde700
ffff880178b10af0
[  154.024395] Call Trace:
[  154.030051]  [<ffffffffa009276d>] ? i915_wedged_get+0x11/0x11 [i915]
[  154.035746]  [<ffffffffa00934b3>] ? i915_ring_missed_irq_set+0x3f/0x3f
[i915]
[  154.041420]  [<ffffffff81130482>] ? simple_attr_open+0x33/0x9e
[  154.047080]  [<ffffffffa009282a>] ? i915_ring_missed_irq_fops_open+0x1a/0x1a
[i915]
[  154.052762]  [<ffffffff81112001>] ? do_dentry_open+0x184/0x2a6
[  154.058414]  [<ffffffff8111deec>] ? do_last+0x942/0xb75
[  154.064010]  [<ffffffff8111c301>] ? __inode_permission+0x53/0x6e
[  154.069612]  [<ffffffff8111e251>] ? link_path_walk+0x51/0x74a
[  154.075172]  [<ffffffff8111f6bc>] ? path_openat+0x20f/0x560
[  154.080770]  [<ffffffff81120597>] ? do_filp_open+0x2b/0x6f
[  154.086253]  [<ffffffff81129ba1>] ? __alloc_fd+0x58/0xe3
[  154.091686]  [<ffffffff811131d6>] ? do_sys_open+0x14b/0x1cf
[  154.097105]  [<ffffffff8179f452>] ? system_call_fastpath+0x12/0x17
[  154.102508] Code: 7e 08 45 89 e1 49 89 d8 4c 89 e9 48 89 ea 4c 89 fe 41 ff
16 49 83 c6 10 49 83 3e 00 eb 30 eb 32 49 63 47 20 4d 8b 07 48 8d 4a 01 <48> 8b
5c 05 00 48 89 e8 65 49 0f c7 08 0f 94 c0 84 c0 75 89 e9
[  154.108791] RIP  [<ffffffff8110dc7e>] kmem_cache_alloc_trace+0xce/0x104
[  154.114424]  RSP <ffff880002817c38>
[  154.120036] ---[ end trace 773048983473776d ]---

==Reproduce steps==
---------------------------- 
1. ./gem_reset_stats --run-subtest ban-blt

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20150127/3be3da26/attachment.html>