[Bug 93467] [bsw] execlists causes machine lockups

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93467

--- Comment #4 from Chris Wilson <chris at chris-wilson.co.uk> ---
[18317.676426] clocksource: timekeeping watchdog: Marking clocksource 'tsc' as
unstable because the skew is too large:
[18317.676478] clocksource:                       'refined-jiffies' wd_now:
1001b7d1e wd_last: 1001b7cea mask: ffffffff
[18317.676492] clocksource:                       'tsc' cs_now: 1aae45992d80
cs_last: 1aae0d54eae0 mask: ffffffffffffffff
[18317.697834] clocksource: Switched to clocksource refined-jiffies
[18485.379989] NMI watchdog: Watchdog detected hard LOCKUP on cpu 1
[18485.380018] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G     U         
4.4.0-rc6+ #363
[18485.380037] Hardware name:                  /NUC5CPYB, BIOS
PYBSWCEL.86A.0027.2015.0507.1758 05/07/2015
[18485.380052] task: ffff88027698e680 ti: ffff8802769ec000 task.ti:
ffff8802769ec000
[18485.380064] RIP: 0010:[<ffffffff81477389>]  [<ffffffff81477389>]
cpuidle_enter_state+0x129/0x260
[18485.380086] RSP: 0018:ffff8802769efe90  EFLAGS: 00000246
[18485.380094] RAX: 0000000000000000 RBX: 0000000000000000 RCX:
0000000000000008
[18485.380102] RDX: 0000000000000000 RSI: 00000000222ebf9d RDI:
0000000000000000
[18485.380110] RBP: ffff8802769efed0 R08: 00000001001ba5e2 R09:
ffff88027fd11cf0
[18485.380118] R10: 0000000000000000 R11: 0000000000000000 R12:
ffff88027fd18938
[18485.380127] R13: 0000000000000001 R14: ffffffff81a65220 R15:
ffffffff81a651c0
[18485.380136] FS:  0000000000000000(0000) GS:ffff88027fd00000(0000)
knlGS:0000000000000000
[18485.380148] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[18485.380156] CR2: 000000000070d000 CR3: 00000002584a0000 CR4:
00000000001006e0
[18485.380164] Stack:
[18485.380171]  000010c0b3f1de91 0000000000000000 ffffffff81a65238
ffffffff81aa9278
[18485.380190]  ffff88027fd18938 ffff8802769ec000 ffff8802769ec000
ffffffff81a651c0
[18485.380210]  ffff8802769efee0 ffffffff814774f7 ffff8802769eff30
ffffffff810a057c
[18485.380227] Call Trace:
[18485.380238]  [<ffffffff814774f7>] cpuidle_enter+0x17/0x20
[18485.380250]  [<ffffffff810a057c>] cpu_startup_entry+0x25c/0x2b0
[18485.380261]  [<ffffffff8102e87e>] start_secondary+0xfe/0x120
[18485.380270] Code: c3 0f 1f 44 00 00 31 ff e8 a5 8e c2 ff 8b 45 cc 85 c0 74
12 9c 58 f6 c4 02 0f 85 00 01 00 00 31 ff e8 1c c5 c4 ff fb 48 2b 5d c0 <48> ba
cf f7 53 e3 a5 9b c4 20 48 89 d8 48 c1 fb 3f 48 f7 ea b8 
[18485.380672] Kernel panic - not syncing: Hard LOCKUP
[18485.380681] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G     U         
4.4.0-rc6+ #363
[18485.380693] Hardware name:                  /NUC5CPYB, BIOS
PYBSWCEL.86A.0027.2015.0507.1758 05/07/2015
[18485.380704]  ffff88027fd05be0 ffff88027fd05b50 ffffffff8126805f
ffffffff818cbb74
[18485.380722]  ffff88027fd05bd0 ffffffff811071b5 0000000000000008
ffff88027fd05be0
[18485.380739]  ffff88027fd05b78 0000000258473402 0000000000000046
0000000000000007
[18485.380757] Call Trace:
[18485.380764]  <NMI>  [<ffffffff8126805f>] dump_stack+0x44/0x55
[18485.380780]  [<ffffffff811071b5>] panic+0xbe/0x1df
[18485.380791]  [<ffffffff810d5096>] watchdog_overflow_callback+0xc6/0xd0
[18485.380802]  [<ffffffff81102fac>] __perf_event_overflow+0x8c/0x1d0
[18485.380812]  [<ffffffff81103914>] perf_event_overflow+0x14/0x20
[18485.380822]  [<ffffffff8101ae76>] intel_pmu_handle_irq+0x1c6/0x3e0
[18485.380833]  [<ffffffff810303ef>] ? native_apic_wait_icr_idle+0x1f/0x30
[18485.380843]  [<ffffffff810137a8>] perf_event_nmi_handler+0x28/0x50
[18485.380854]  [<ffffffff81006ad7>] nmi_handle+0x67/0x100
[18485.380863]  [<ffffffff81006ee7>] do_nmi+0x117/0x340
[18485.380873]  [<ffffffff81524107>] end_repeat_nmi+0x1a/0x1e
[18485.380884]  [<ffffffff81351ac2>] ?
valleyview_pipestat_irq_handler+0x12/0x1c0
[18485.380897]  [<ffffffff81351ac2>] ?
valleyview_pipestat_irq_handler+0x12/0x1c0
[18485.380909]  [<ffffffff81351ac2>] ?
valleyview_pipestat_irq_handler+0x12/0x1c0
[18485.380919]  <<EOE>>  <IRQ>  [<ffffffff81355ea6>]
cherryview_irq_handler+0x66/0x120
[18485.380939]  [<ffffffff810a8045>] handle_irq_event_percpu+0x75/0x170
[18485.380949]  [<ffffffff810a816c>] handle_irq_event+0x2c/0x50
[18485.380959]  [<ffffffff810ab38a>] handle_edge_irq+0x6a/0x150
[18485.381047]  [<ffffffff8100597a>] handle_irq+0x1a/0x30
[18485.381057]  [<ffffffff815245db>] do_IRQ+0x4b/0xd0
[18485.381067]  [<ffffffff81522c7c>] common_interrupt+0x7c/0x7c
[18485.381075]  <EOI>  [<ffffffff81477389>] ? cpuidle_enter_state+0x129/0x260
[18485.381089]  [<ffffffff814774f7>] cpuidle_enter+0x17/0x20
[18485.381099]  [<ffffffff810a057c>] cpu_startup_entry+0x25c/0x2b0
[18485.381108]  [<ffffffff8102e87e>] start_secondary+0xfe/0x120
[18485.381123] Kernel Offset: disabled
[18485.381135] Rebooting in 2 seconds..
[18487.381295] ACPI MEMORY or I/O RESET_REG.

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