[Bug 104218] [CI] igt at gem_tiled_swapping@non-threaded - cause incompletes on following tests

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104218

--- Comment #9 from Marta Löfstedt <marta.lofstedt at intel.com> ---
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3531/shard-hsw7/igt@kms_flip@vblank-vs-hang.html
run.log:
running: igt/gem_tiled_swapping/non-threaded
[49/76] skip: 24, pass: 25 /                
FATAL: command execution failed
java.io.EOFException
...
CI_IGT_test runtime 234 seconds
Rebooting shard-hsw7

pstore:
<7>[  184.837602] [drm:init_workarounds_ring [i915]] rcs0: Number of context
specific w/a: 0
<3>[  185.396854] INFO: task kswapd0:80 blocked for more than 60 seconds.
<3>[  185.396865]       Tainted: G     U           4.15.0-rc3-CI-CI_DRM_3531+
#1
<6>[  185.396870] kswapd0         D    0    80      2 0x80000000
<4>[  185.396875] Call Trace:
<4>[  185.396883]  ? __schedule+0x3c3/0xaf0
<4>[  185.396890]  schedule+0x37/0x90
<4>[  185.396895]  io_schedule+0xd/0x30
<4>[  185.396899]  __lock_page+0x107/0x130
<4>[  185.396903]  ? add_to_page_cache_lru+0xc0/0xc0
<4>[  185.396910]  deferred_split_scan+0x25a/0x2b0
<4>[  185.396917]  shrink_slab.part.17+0x201/0x5d0
<4>[  185.396927]  shrink_node+0x2fd/0x310
<4>[  185.396934]  kswapd+0x31c/0x910
<4>[  185.396945]  kthread+0x173/0x1b0
<4>[  185.396948]  ? mem_cgroup_shrink_node+0x300/0x300
<4>[  185.396950]  ? _kthread_create_on_node+0x30/0x30
<4>[  185.396955]  ret_from_fork+0x24/0x30
<4>[  185.396963] 
<4>[  185.396963] Showing all locks held in the system:
<4>[  185.396972] 2 locks held by khungtaskd/67:
<4>[  185.396976]  #0:  (rcu_read_lock){....}, at: [<000000002436718a>]
watchdog+0x9b/0x5e0
<4>[  185.396987]  #1:  (tasklist_lock){.+.+}, at: [<00000000e0223fab>]
debug_show_all_locks+0x37/0x190
<4>[  185.396999] 1 lock held by kswapd0/80:
<4>[  185.397001]  #0:  (shrinker_rwsem){++++}, at: [<000000007ca46b62>]
shrink_slab.part.17+0x46/0x5d0
<4>[  185.397018] 1 lock held by in:imklog/602:
<4>[  185.397020]  #0:  (&f->f_pos_lock){+.+.}, at: [<0000000036b693d1>]
__fdget_pos+0x40/0x50
<4>[  185.397036] 1 lock held by dmesg/1090:
<4>[  185.397038]  #0:  (&user->lock){+.+.}, at: [<00000000400b3ddf>]
devkmsg_read+0x35/0x2f0
<4>[  185.397061] 
<4>[  185.397063] =============================================
<4>[  185.397063] 
<4>[  185.397065] NMI backtrace for cpu 0
<4>[  185.397068] CPU: 0 PID: 67 Comm: khungtaskd Tainted: G     U          
4.15.0-rc3-CI-CI_DRM_3531+ #1
<4>[  185.397070] Hardware name: MSI MS-7924/Z97M-G43(MS-7924), BIOS V1.12
02/15/2016
<4>[  185.397071] Call Trace:
<4>[  185.397075]  dump_stack+0x5f/0x86
<4>[  185.397079]  nmi_cpu_backtrace+0xb4/0xc0
<4>[  185.397084]  ? lapic_can_unplug_cpu+0x90/0x90
<4>[  185.397087]  nmi_trigger_cpumask_backtrace+0xb8/0xf0
<4>[  185.397091]  watchdog+0x43e/0x5e0
<4>[  185.397095]  kthread+0x173/0x1b0
<4>[  185.397098]  ? reset_hung_task_detector+0x10/0x10
<4>[  185.397100]  ? _kthread_create_on_node+0x30/0x30
<4>[  185.397104]  ret_from_fork+0x24/0x30
<6>[  185.397113] Sending NMI from CPU 0 to CPUs 1-7:
<4>[  185.397121] NMI backtrace for cpu 4 skipped: idling at
intel_idle+0x6f/0x120
<4>[  185.397135] NMI backtrace for cpu 7 skipped: idling at
intel_idle+0x6f/0x120
<4>[  185.397137] NMI backtrace for cpu 3 skipped: idling at
intel_idle+0x6f/0x120
<4>[  185.397141] NMI backtrace for cpu 2 skipped: idling at
intel_idle+0x6f/0x120
<4>[  185.397145] NMI backtrace for cpu 5 skipped: idling at
intel_idle+0x6f/0x120
<4>[  185.397148] NMI backtrace for cpu 6 skipped: idling at
intel_idle+0x6f/0x120
<4>[  185.397151] NMI backtrace for cpu 1 skipped: idling at
intel_idle+0x6f/0x120
<0>[  185.398121] Kernel panic - not syncing: hung_task: blocked tasks
<4>[  185.398126] CPU: 0 PID: 67 Comm: khungtaskd Tainted: G     U          
4.15.0-rc3-CI-CI_DRM_3531+ #1
<4>[  185.398129] Hardware name: MSI MS-7924/Z97M-G43(MS-7924), BIOS V1.12
02/15/2016
<4>[  185.398131] Call Trace:
<4>[  185.398136]  dump_stack+0x5f/0x86
<4>[  185.398141]  panic+0xcf/0x20d
<4>[  185.398150]  watchdog+0x44a/0x5e0
<4>[  185.398156]  kthread+0x173/0x1b0
<4>[  185.398159]  ? reset_hung_task_detector+0x10/0x10
<4>[  185.398162]  ? _kthread_create_on_node+0x30/0x30
<4>[  185.398168]  ret_from_fork+0x24/0x30
<0>[  185.398576] Dumping ftrace buffer:
<0>[  185.398642]    (ftrace buffer empty)
<0>[  185.398646] Kernel Offset: disabled

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