[Bug 111905] New: [CI][BAT] igt at i915_selftest@live_hangcheck - incomplete - system hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111905

            Bug ID: 111905
           Summary: [CI][BAT] igt at i915_selftest@live_hangcheck -
                    incomplete - system hang
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: not set
          Priority: not set
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: lakshminarayana.vudum at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5211/fi-bdw-5557u/igt@i915_selftest@live_hangcheck.html

<1> [472.177001] BUG: kernel NULL pointer dereference, address:
0000000000000028
<1> [472.177005] #PF: supervisor read access in kernel mode
<1> [472.177007] #PF: error_code(0x0000) - not-present page
<6> [472.177008] PGD 0 P4D 0 
<4> [472.177011] Oops: 0000 [#1] PREEMPT SMP PTI
<4> [472.177013] CPU: 2 PID: 4908 Comm: i915_selftest Tainted: G     U         
  5.4.0-rc1-CI-CI_DRM_6999+ #1
<4> [472.177014] Hardware name:  /NUC5i7RYB, BIOS
RYBDWi35.86A.0362.2017.0118.0940 01/18/2017
<4> [472.177058] RIP: 0010:trace_ports+0x1bd/0x2c0 [i915]
<4> [472.177060] Code: 48 c7 c2 6e 23 67 a0 be 01 00 00 00 48 c7 c7 a0 79 24 82
e8 a5 5e aa e0 48 8b 45 d0 44 3b 7d cc 4c 8b 38 48 c7 c0 68 e0 81 a0 <4d> 8b 4f
28 0f 89 85 fe ff ff 48 c7 c0 65 e0 81 a0 e9 79 fe ff ff
<4> [472.177061] RSP: 0018:ffffc90000453738 EFLAGS: 00010046
<4> [472.177063] RAX: ffffffffa081e068 RBX: ffff8881d55aa570 RCX:
00000000cbec4aa8
<4> [472.177064] RDX: ffff88823df1d7d0 RSI: 00000000b00abb6e RDI:
00000000ffffffff
<4> [472.177065] RBP: ffffc90000453770 R08: ffff88823df1d820 R09:
00000000fffffffe
<4> [472.177066] R10: 0000000022822714 R11: 00000000d6ff0aea R12:
ffffffffa081e156
<4> [472.177068] R13: 0000000000000000 R14: 0000000000000000 R15:
0000000000000000
<4> [472.177069] FS:  00007f4d8305de40(0000) GS:ffff88824eb00000(0000)
knlGS:0000000000000000
<4> [472.177070] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [472.177072] CR2: 0000000000000028 CR3: 000000020b58c006 CR4:
00000000003606e0
<4> [472.177073] Call Trace:
<4> [472.177116]  assert_pending_valid+0x1a/0x1a0 [i915]
<4> [472.177159]  process_csb+0x3b6/0xaa0 [i915]
<4> [472.177201]  __execlists_reset+0x30/0xac0 [i915]
<4> [472.177243]  execlists_reset+0x3d/0x50 [i915]
<4> [472.177284]  intel_engine_reset+0xdf/0x230 [i915]
<4> [472.177323]  __igt_atomic_reset_engine+0x4b/0x90 [i915]
<0> [472.180412] igt/rcs0-5002    3.... 471435087us : i915_request_retire_upto:
rcs0 fence 298a6:176, current 176
<0> [472.187736] igt/rcs0-5002    3d..1 471438393us : trace_ports: rcs0: submit
{ 298a6:182, 0:0 }
<0> [472.197054] ksoftirq-26      3d.s1 471442049us :
__execlists_submission_tasklet: vecs0: queue_priority_hint:-2147483648,
submit:no

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