------- Comment From chngu...@us.ibm.com 2018-04-21 17:02 EDT------- Not sure what is going on. The SOL console print out all of these messages... rcu_sched self-detected stall on CPU [20705.652053] 95-....: (1 GPs behind) idle=c72/2/0 softirq=179/180 fqs=2586003 [20705.652101] (t=5172329 jiffies g=213 c=212 q=74736) [20705.652140] Task dump for CPU 95: [20705.652164] swapper/95 R running task 0 0 1 0x00000804 [20705.652213] Call Trace: [20705.652231] [c000200fff3d3460] [c000000000149ed8] sched_show_task.part.16+0xd8/0x110 (unreliable) [20705.652288] [c000200fff3d34d0] [c0000000001a9e9c] rcu_dump_cpu_stacks+0xd4/0x138 [20705.652336] [c000200fff3d3520] [c0000000001a8f68] rcu_check_callbacks+0x8e8/0xb40 [20705.652385] [c000200fff3d3650] [c0000000001b7208] update_process_times+0x48/0x90 [20705.652433] [c000200fff3d3680] [c0000000001cef54] tick_sched_handle.isra.5+0x34/0xd0 [20705.652482] [c000200fff3d36b0] [c0000000001cf050] tick_sched_timer+0x60/0xe0 [20705.652530] [c000200fff3d36f0] [c0000000001b7db4] __hrtimer_run_queues+0x144/0x370 [20705.652578] [c000200fff3d3770] [c0000000001b8d0c] hrtimer_interrupt+0xfc/0x350 [20705.652627] [c000200fff3d3840] [c0000000000248f0] __timer_interrupt+0x90/0x260 [20705.652675] [c000200fff3d3890] [c000000000024d08] timer_interrupt+0x98/0xe0 [20705.652716] [c000200fff3d38c0] [c000000000009014] decrementer_common+0x114/0x120 [20705.652765] --- interrupt: 901 at _raw_spin_lock_irqsave+0x88/0x110 [20705.652765] LR = _raw_spin_lock_irqsave+0x80/0x110 [20705.652836] [c000200fff3d3bb0] [c000200fff3d3bf0] 0xc000200fff3d3bf0 (unreliable) [20705.652885] [c000200fff3d3bf0] [c000000000904e90] scsi_end_request+0x110/0x270 [20705.652933] [c000200fff3d3c50] [c000000000905414] scsi_io_completion+0x424/0x750 [20705.652981] [c000200fff3d3d10] [c0000000008f949c] scsi_finish_command+0x11c/0x1b0 [20705.653029] [c000200fff3d3d90] [c000000000904428] scsi_softirq_done+0x198/0x220 [20705.653078] [c000200fff3d3e20] [c00000000068fe98] blk_done_softirq+0xb8/0xe0 [20705.653126] [c000200fff3d3e60] [c000000000cffb08] __do_softirq+0x158/0x3e4 [20705.653167] [c000200fff3d3f40] [c000000000115968] irq_exit+0xe8/0x120 [20705.653207] [c000200fff3d3f60] [c000000000017788] __do_irq+0x88/0x1c0 [20705.653248] [c000200fff3d3f90] [c00000000002a1b0] call_do_irq+0x14/0x24 [20705.653289] [c000200e582fba90] [c00000000001795c] do_IRQ+0x9c/0x130 [20705.653330] [c000200e582fbae0] [c000000000009b04] h_virt_irq_common+0x114/0x120 [20705.653379] --- interrupt: ea1 at replay_interrupt_return+0x0/0x4 [20705.653379] LR = arch_local_irq_restore+0x74/0x90 [20705.653459] [c000200e582fbdd0] [000000000000005f] 0x5f (unreliable) [20705.653500] [c000200e582fbdf0] [c000000000ac16d0] cpuidle_enter_state+0xf0/0x450 [20705.653549] [c000200e582fbe50] [c00000000017311c] call_cpuidle+0x4c/0x90 [20705.653590] [c000200e582fbe70] [c000000000173530] do_idle+0x2b0/0x330 [20705.653631] [c000200e582fbec0] [c0000000001737ec] cpu_startup_entry+0x3c/0x50 [20705.653679] [c000200e582fbef0] [c00000000004a050] start_secondary+0x4f0/0x510 [20705.653727] [c000200e582fbf90] [c00000000000aa6c] start_secondary_prolog+0x10/0x14 [ ***] (2 of 2) A start job is running for? polling (5h 45min 33s / no limit)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1762844 Title: ISST-LTE:KVM:Ubuntu1804:BostonLC:boslcp3: Host crashed & enters into xmon after moving to 4.15.0-15.16 kernel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1762844/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
