igt@kms_big_joiner@2x-modeset - timeout - Per-test timeout exceeded. Killing the current test with SIGQUIT

http://gfx-ci.igk.intel.com/cibuglog-ng/testresult/1522922578?query_key=7cdec051f128a8872a461ecde08ebb5cac11e40b

Stdout	
Opened device: /dev/dri/card0

Stderr	
Received signal SIGQUIT.
Stack trace: 
 #0 [fatal_sig_handler+0x10f]
 #1 [killpg+0x40]
 #2 [__write+0x17]
 #3 [igt_writen+0x33]
 #4 [igt_sysfs_vprintf+0x9a]
 #5 [igt_sysfs_printf+0x93]
 #6 [igt_drop_caches_set+0x3c]
 #7 [drm_open_driver+0x69]
 #8 [drm_open_driver_master+0xb]
 #9 [__igt_unique____real_main181+0x23d]
 #10 [main+0x2d]
 #11 [__libc_start_main+0xf3]
 #12 [_start+0x2e]

Dmesg	
<6> [946.780108] Console: switching to colour dummy device 80x25
<6> [946.780341] [IGT] kms_big_joiner: executing
<7> [946.784749] i915 0000:03:00.0: [drm:i915_gem_open [i915]] 
<7> [946.785526] i915 0000:03:00.0: [drm:i915_drop_caches_set [i915]] Dropping caches: 0x000001dc [0x000001dc]
<4> [1066.907078] [IGT] Per-test timeout exceeded. Killing the current test with SIGQUIT.
<6> [1066.907100] sysrq: HELP : loglevel(0-9) reboot(b) crash(c) show-all-locks(d) terminate-all-tasks(e) memory-full-oom-kill(f) kill-all-tasks(i) thaw-filesystems(j) sak(k) show-backtrace-all-active-cpus(l) show-memory-usage(m) nice-all-RT-tasks(n) poweroff(o) show-registers(p) show-all-timers(q) unraw(r) sync(s) show-task-states(t) unmount(u) force-fb(v) show-blocked-tasks(w) dump-ftrace-buffer(z) 
<6> [1066.907208] sysrq: Show State
<6> [1066.907217] task:systemd         state:S stack:11760 pid:1     ppid:0      flags:0x00000000
<6> [1066.907223] Call Trace:
<6> [1066.907225]  <TASK>
<6> [1066.907228]  __schedule+0x3a4/0xd70
<6> [1066.907237]  schedule+0x5c/0xd0
<6> [1066.907240]  schedule_hrtimeout_range_clock+0x13c/0x150
<6> [1066.907245]  ? _raw_write_unlock_irq+0x23/0x50
<6> [1066.907249]  do_epoll_wait+0x709/0x8f0
<6> [1066.907257]  ? __pfx_ep_autoremove_wake_function+0x10/0x10
<6> [1066.907262]  __x64_sys_epoll_wait+0x54/0x90
<6> [1066.907265]  ? lockdep_hardirqs_on+0xc3/0x140
<6> [1066.907269]  do_syscall_64+0x3c/0x90
<6> [1066.907272]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
<6> [1066.907275] RIP: 0033:0x7f2f83dc946e
<6> [1066.907277] RSP: 002b:00007ffcf523fa30 EFLAGS: 00000293 ORIG_RAX: 00000000000000e8
<6> [1066.907281] RAX: ffffffffffffffda RBX: 000055e534b19ef0 RCX: 00007f2f83dc946e
<6> [1066.907282] RDX: 0000000000000053 RSI: 000055e534c51760 RDI: 0000000000000004
<6> [1066.907284] RBP: ffffffffffffffff R08: 0000000000000000 R09: 00000000000008f0