[Bug 88688] New: [BDW Regression]igt/gem_reset_stats/ban-bsd causes system hang

Wed Jan 21 19:23:41 PST 2015

https://bugs.freedesktop.org/show_bug.cgi?id=88688

            Bug ID: 88688
           Summary: [BDW Regression]igt/gem_reset_stats/ban-bsd 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 112638
  --> https://bugs.freedesktop.org/attachment.cgi?id=112638&action=edit
dmesg

==System Environment==
--------------------------
Regression: Yes 
good commit:  6f34cc393f6407fbec91ff6d4fd1e29fe86b59d5
bad commit: 93180785d44e3d417099e293b9ff6eeb4fd20aa2

no-working platforms: BDW

==kernel==
--------------------------
drm-intel-nightly/d6bc7a6a0a7573350e8be8ec54002c20d1dbe1e0
commit d6bc7a6a0a7573350e8be8ec54002c20d1dbe1e0
Author: Daniel Vetter <daniel.vetter at ffwll.ch>
Date:   Tue Jan 20 15:10:59 2015 +0100

    drm-intel-nightly: 2015y-01m-20d-14h-10m-40s UTC integration manifest

==Bug detailed description==
-----------------------------
It causes system hang on drm-intel-nightly and drm-intel-next-queued kernel.

output:
IGT-Version: 1.9-g3d65ff7 (x86_64) (Linux:
3.19.0-rc4_drm-intel-nightly_d6bc7a_20150121+ x86_64)
Subtest ban-bsd: SUCCESS (14.499s)
Killed

dmesg:
[  388.528466] BUG: unable to handle kernel paging request at 00000000ffffffff
[  388.530132] IP: [<ffffffff8110dc5e>] kmem_cache_alloc_trace+0xce/0x104
[  388.531802] PGD a1588067 PUD 0
[  388.533461] Oops: 0000 [#1] SMP
[  388.535115] Modules linked in: netconsole configfs ipv6 battery parport_pc
parport dm_mod ac acpi_cpufreq i915 button video drm_kms_helper drm cfbfillrect
cfbimgblt cfbcopyarea [last unloaded: netconsole]
[  388.536955] CPU: 1 PID: 4755 Comm: systemd-udevd Not tainted
3.19.0-rc4_drm-intel-nightly_d6bc7a_20150121+ #718
[  388.538755] task: ffff8800a75d9800 ti: ffff8800a1568000 task.ti:
ffff8800a1568000
[  388.540552] RIP: 0010:[<ffffffff8110dc5e>]  [<ffffffff8110dc5e>]
kmem_cache_alloc_trace+0xce/0x104
[  388.542392] RSP: 0018:ffff8800a156bbf8  EFLAGS: 00010282
[  388.544231] RAX: 0000000000000000 RBX: 0000000000000000 RCX:
0000000000002257
[  388.546156] RDX: 0000000000002256 RSI: 00000000000000d0 RDI:
ffff88014a003900
[  388.548021] RBP: 00000000ffffffff R08: 0000000000015520 R09:
0000000000000000
[  388.549886] R10: ffff880149c52780 R11: ffff8b919a899a8a R12:
00000000000000d0
[  388.551753] R13: 0000000000000080 R14: ffffffff8112e8e7 R15:
ffff88014a003900
[  388.553622] FS:  00007f79f0568880(0000) GS:ffff88014ec40000(0000)
knlGS:0000000000000000
[  388.555510] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  388.557397] CR2: 00000000ffffffff CR3: 00000000a1587000 CR4:
00000000003407e0
[  388.559305] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[  388.561198] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[  388.563080] Stack:
[  388.564938]  ffff880002da8000 0000000000000000 ffff880002da8000
ffffffff817d22f0
[  388.566836]  ffff880002edca50 ffff880002da8010 ffffffff817d2660
ffffffff8112e8e7
[  388.568731]  0000000000000000 ffff880002e9d580 ffff880002da8000
ffffffff8116d5d5
[  388.570625] Call Trace:
[  388.572500]  [<ffffffff8112e8e7>] ? seq_open+0x2c/0x7f
[  388.574379]  [<ffffffff8116d5d5>] ? kernfs_fop_open+0x167/0x2be
[  388.576260]  [<ffffffff8116d46e>] ? kernfs_fop_release+0x4c/0x4c
[  388.578133]  [<ffffffff81111fe1>] ? do_dentry_open+0x184/0x2a6
[  388.579993]  [<ffffffff8111decc>] ? do_last+0x942/0xb75
[  388.581844]  [<ffffffff8111c2bd>] ? __inode_permission+0x2f/0x6e
[  388.583692]  [<ffffffff8111e231>] ? link_path_walk+0x51/0x74a
[  388.585523]  [<ffffffff8111f69c>] ? path_openat+0x20f/0x560
[  388.587352]  [<ffffffff81144eea>] ? ep_read_events_proc+0x92/0x92
[  388.589174]  [<ffffffff81120577>] ? do_filp_open+0x2b/0x6f
[  388.590980]  [<ffffffff81129b81>] ? __alloc_fd+0x58/0xe3
[  388.592780]  [<ffffffff811131b6>] ? do_sys_open+0x14b/0x1cf
[  388.594565]  [<ffffffff8179efd2>] ? system_call_fastpath+0x12/0x17
[  388.596351] Code: 7e 08 45 89 e1 49 89 d8 4c 89 e9 48 89 ea 4c 89 fe 41 ff
16 [  388.596467] [drm] Simulated gpu hang, resetting stop_rings
[  388.596468] drm/i915: Resetting chip after gpu hang
[  388.596491] [drm:gen8_init_common_ring] Execlists enabled for render ring
[  388.596494] [drm:gen8_init_common_ring] Execlists enabled for bsd ring
[  388.596505] [drm:gen8_init_common_ring] Execlists enabled for blitter ring
[  388.596506] ------------[ cut here ]------------


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

-- 
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/20150122/c0bbdc5a/attachment.html>