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

Mon Dec 18 08:41:02 UTC 2017

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

--- Comment #8 from Marta Löfstedt <marta.lofstedt at intel.com> ---
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3523/shard-hsw6/igt@kms_flip@blt-wf_vblank-vs-modeset-interruptible.html

run.log:
running: igt/gem_tiled_swapping/non-threaded

[17/76] skip: 8, pass: 9 /                  
FATAL: command execution failed
java.io.EOFException
...
Completed CI_IGT_test CI_DRM_3523/shard-hsw6/24 : FAILURE
CI_IGT_test runtime 276 seconds
Rebooting shard-hsw6

pstore:

<7>[  246.768557] [drm:intel_reference_shared_dpll [i915]] using SPLL for pipe
C
<3>[  246.864103] INFO: task kswapd0:80 blocked for more than 60 seconds.
<3>[  246.864126]       Tainted: G     U           4.15.0-rc3-CI-CI_DRM_3523+
#1
<3>[  246.864136] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
<6>[  246.864146] kswapd0         D    0    80      2 0x80000000
<4>[  246.864163] Call Trace:
<4>[  246.864185]  ? __schedule+0x3c3/0xaf0
<4>[  246.864211]  schedule+0x37/0x90
<4>[  246.864222]  io_schedule+0xd/0x30
<4>[  246.864233]  __lock_page+0x107/0x130
<4>[  246.864250]  ? add_to_page_cache_lru+0xc0/0xc0
<4>[  246.864271]  deferred_split_scan+0x25a/0x2b0
<4>[  246.864284]  shrink_slab.part.17+0x201/0x5d0
<4>[  246.864305]  shrink_node+0x2fd/0x310
<4>[  246.864320]  kswapd+0x31c/0x910
<4>[  246.864341]  kthread+0x173/0x1b0
<4>[  246.864347]  ? mem_cgroup_shrink_node+0x300/0x300
<4>[  246.864352]  ? _kthread_create_on_node+0x30/0x30
<4>[  246.864360]  ret_from_fork+0x24/0x30
<4>[  246.864378] 
<4>[  246.864378] Showing all locks held in the system:
<4>[  246.864388] 2 locks held by khungtaskd/67:
<4>[  246.864395]  #0:  (rcu_read_lock){....}, at: [<00000000d5a49218>]
watchdog+0x9b/0x5e0
<4>[  246.864416]  #1:  (tasklist_lock){.+.+}, at: [<000000005d61d7e3>]
debug_show_all_locks+0x37/0x190
<4>[  246.864437] 1 lock held by kswapd0/80:
<4>[  246.864440]  #0:  (shrinker_rwsem){++++}, at: [<000000005a3fbf39>]
shrink_slab.part.17+0x46/0x5d0
<4>[  246.864465] 1 lock held by systemd-journal/229:
<4>[  246.864468]  #0:  (&mm->mmap_sem){++++}, at: [<00000000896672dd>]
__do_page_fault+0x106/0x560
<4>[  246.864493] 1 lock held by in:imklog/587:
<4>[  246.864496]  #0:  (&f->f_pos_lock){+.+.}, at: [<00000000b4ab2786>]
__fdget_pos+0x40/0x50
<4>[  246.864524] 1 lock held by dmesg/1086:
<4>[  246.864527]  #0:  (&user->lock){+.+.}, at: [<0000000028cca19f>]
devkmsg_read+0x35/0x2f0
<4>[  246.864550] 3 locks held by kms_flip/1786:
<4>[  246.864553]  #0:  (&dev->mode_config.mutex){+.+.}, at:
[<000000008153aa3a>] drm_mode_setcrtc+0xba/0x5d0
<4>[  246.864572]  #1:  (crtc_ww_class_acquire){+.+.}, at: [<00000000d02cfa34>]
drm_mode_setcrtc+0xcc/0x5d0
<4>[  246.864590]  #2:  (crtc_ww_class_mutex){+.+.}, at: [<00000000f306771c>]
drm_modeset_backoff+0x7e/0x1c0
<4>[  246.864609] 
<4>[  246.864612] =============================================
<4>[  246.864612] 
<4>[  246.864617] NMI backtrace for cpu 1
<4>[  246.864623] CPU: 1 PID: 67 Comm: khungtaskd Tainted: G     U          
4.15.0-rc3-CI-CI_DRM_3523+ #1
<4>[  246.864627] Hardware name: MSI MS-7924/Z97M-G43(MS-7924), BIOS V1.12
02/15/2016
<4>[  246.864630] Call Trace:
<4>[  246.864639]  dump_stack+0x5f/0x86
<4>[  246.864646]  nmi_cpu_backtrace+0xb4/0xc0
<4>[  246.864654]  ? irq_force_complete_move+0xe0/0xe0
<4>[  246.864659]  nmi_trigger_cpumask_backtrace+0xb8/0xf0
<4>[  246.864667]  watchdog+0x43e/0x5e0
<4>[  246.864677]  kthread+0x173/0x1b0
<4>[  246.864682]  ? reset_hung_task_detector+0x10/0x10
<4>[  246.864687]  ? _kthread_create_on_node+0x30/0x30
<4>[  246.864694]  ret_from_fork+0x24/0x30
<6>[  246.864713] Sending NMI from CPU 1 to CPUs 0,2-7:
<4>[  246.864730] NMI backtrace for cpu 5 skipped: idling at
intel_idle+0x6f/0x120
<4>[  246.864748] NMI backtrace for cpu 6 skipped: idling at
intel_idle+0x6f/0x120
<4>[  246.864757] NMI backtrace for cpu 7 skipped: idling at
intel_idle+0x6f/0x120
<4>[  246.864766] NMI backtrace for cpu 4 skipped: idling at
intel_idle+0x6f/0x120
<4>[  246.864773] NMI backtrace for cpu 2 skipped: idling at
intel_idle+0x6f/0x120
<4>[  246.864781] NMI backtrace for cpu 0 skipped: idling at
intel_idle+0x6f/0x120
<4>[  246.864788] NMI backtrace for cpu 3 skipped: idling at
intel_idle+0x6f/0x120
<0>[  246.865728] Kernel panic - not syncing: hung_task: blocked tasks
<4>[  246.865736] CPU: 1 PID: 67 Comm: khungtaskd Tainted: G     U          
4.15.0-rc3-CI-CI_DRM_3523+ #1
<4>[  246.865741] Hardware name: MSI MS-7924/Z97M-G43(MS-7924), BIOS V1.12
02/15/2016
<4>[  246.865746] Call Trace:
<4>[  246.865756]  dump_stack+0x5f/0x86
<4>[  246.865764]  panic+0xcf/0x20d
<4>[  246.865781]  watchdog+0x44a/0x5e0
<4>[  246.865792]  kthread+0x173/0x1b0
<4>[  246.865800]  ? reset_hung_task_detector+0x10/0x10
<4>[  246.865805]  ? _kthread_create_on_node+0x30/0x30
<4>[  246.865814]  ret_from_fork+0x24/0x30
<0>[  246.866626] Dumping ftrace buffer:
<0>[  246.866708]    (ftrace buffer empty)
<0>[  246.866715] Kernel Offset: disabled

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