[Bug 99706] [BAT] [HSW] drv_hangman/error-state-basic failing frequently in CI

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99706

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[BAT] [HSW]                 |[BAT] [HSW]
                   |drv_hangman/error-state-bas |drv_hangman/error-state-bas
                   |ic failing constantly in CI |ic failing frequently in CI

--- Comment #1 from Chris Wilson <chris at chris-wilson.co.uk> ---
[   88.317089] INFO: rcu_preempt self-detected stall on CPU
[   88.317095]  6-...: (64998 ticks this GP) idle=9fd/140000000000002/0
softirq=5389/5389 fqs=15893
[   88.317098]   (t=65000 jiffies g=2237 c=2236 q=580)
[   88.317114] Task dump for CPU 6:
[   88.317114] drv_hangman     R  running task        0  6133   6105 0x00000008
[   88.317116] Call Trace:
[   88.317117]  <IRQ>
[   88.317121]  sched_show_task+0x15d/0x260
[   88.317122]  ? sched_show_task+0x86/0x260
[   88.317123]  dump_cpu_task+0x32/0x40
[   88.317140]  rcu_dump_cpu_stacks+0x99/0xbd
[   88.317142]  rcu_check_callbacks+0x93f/0xba0
[   88.317144]  ? __this_cpu_preempt_check+0x13/0x20
[   88.317146]  ? trace_hardirqs_off_caller+0x9a/0x130
[   88.317147]  ? trace_hardirqs_off+0xd/0x10
[   88.317149]  ? tick_sched_handle.isra.7+0x30/0x30
[   88.317150]  update_process_times+0x2a/0x50
[   88.317151]  tick_sched_handle.isra.7+0x29/0x30
[   88.317152]  tick_sched_timer+0x40/0x70
[   88.317153]  __hrtimer_run_queues+0x101/0x560
[   88.317154]  hrtimer_interrupt+0xb9/0x210
[   88.317155]  local_apic_timer_interrupt+0x31/0x50
[   88.317156]  smp_apic_timer_interrupt+0x33/0x50
[   88.317159]  apic_timer_interrupt+0x90/0xa0
[   88.317161] RIP: 0010:__do_softirq+0x98/0x4c0
[   88.317161] RSP: 0018:ffff88041eb83f70 EFLAGS: 00000206 ORIG_RAX:
ffffffffffffff10
[   88.317162] RAX: 00000000ffffffff RBX: ffff880403d62740 RCX:
0000000000000000
[   88.317163] RDX: 0000000000000000 RSI: ffffffff81c97524 RDI:
ffffffff81c73209
[   88.317163] RBP: ffff88041eb83fc0 R08: 0000000000000000 R09:
0000000000000000
[   88.317164] R10: 0000000000000000 R11: 0000000000000000 R12:
0000000000000001
[   88.317164] R13: ffffc90001aafc70 R14: 0000000000000001 R15:
ffff8804065355c0
[   88.317165]  irq_exit+0xa9/0xc0
[   88.317166]  smp_apic_timer_interrupt+0x38/0x50
[   88.317167]  apic_timer_interrupt+0x90/0xa0
[   88.317168] RIP: 0010:_raw_spin_unlock_irq+0x2d/0x50
[   88.317169] RSP: 0018:ffffc90001aafbe0 EFLAGS: 00000206 ORIG_RAX:
ffffffffffffff10
[   88.317170] RAX: ffff880403d62740 RBX: ffff8803ff380058 RCX:
0000000000000001
[   88.317170] RDX: 0000000000000000 RSI: ffffffff81c97524 RDI:
0000000000000001
[   88.317171] RBP: ffffc90001aafbe8 R08: 0000000000000000 R09:
0000000000000000
[   88.317171] R10: 0000000000000000 R11: 0000000000000000 R12:
0000000000000001
[   88.317171] R13: ffffc90001aafc70 R14: 0000000000000001 R15:
ffff8804065355c0
[   88.317172]  </IRQ>
[   88.317194]  intel_engine_add_wait+0x31/0x40 [i915]
[   88.317208]  i915_wait_request+0x2e6/0x800 [i915]
[   88.317209]  ? wake_atomic_t_function+0x30/0x30
[   88.317220]  i915_gem_object_wait_fence+0x172/0x1a0 [i915]
[   88.317231]  i915_gem_object_wait+0x29a/0x380 [i915]
[   88.317242]  i915_gem_wait_ioctl+0x12c/0x290 [i915]
[   88.317253]  ? i915_gem_wait_ioctl+0x22/0x290 [i915]
[   88.317255]  drm_ioctl+0x200/0x450
[   88.317266]  ? i915_gem_close_object+0x120/0x120 [i915]
[   88.317267]  do_vfs_ioctl+0x90/0x6e0
[   88.317269]  ? entry_SYSCALL_64_fastpath+0x5/0xb1
[   88.317270]  ? __this_cpu_preempt_check+0x13/0x20
[   88.317271]  ? trace_hardirqs_on_caller+0xe7/0x200
[   88.317272]  SyS_ioctl+0x3c/0x70
[   88.317273]  entry_SYSCALL_64_fastpath+0x1c/0xb1
[   88.317274] RIP: 0033:0x7f2be2bc8357
[   88.317274] RSP: 002b:00007fff9c213d78 EFLAGS: 00000246 ORIG_RAX:
0000000000000010
[   88.317275] RAX: ffffffffffffffda RBX: ffffffff81474e03 RCX:
00007f2be2bc8357
[   88.317276] RDX: 00007fff9c213db0 RSI: 00000000c010646c RDI:
0000000000000003
[   88.317276] RBP: ffffc90001aaff88 R08: 0000000000000008 R09:
0000000000000023
[   88.317276] R10: 000000000000000b R11: 0000000000000246 R12:
0000000000000000
[   88.317277] R13: 0000000000000003 R14: 00000000c010646c R15:
0000000000000000
[   88.317278]  ? __this_cpu_preempt_check+0x13/0x20


is usually a missed irqsafe spin_lock.

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