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From: Peter Zijlstra <peterz@infradead.org>
To: Fengguang Wu <fengguang.wu@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>, Ingo Molnar <mingo@redhat.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	Luca Abeni <luca.abeni@santannapisa.it>,
	Tejun Heo <tj@kernel.org>,
	Matt Fleming <matt@codeblueprint.co.uk>,
	Nicolas Pitre <nicolas.pitre@linaro.org>,
	linux-kernel@vger.kernel.org, lkp@01.org,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>
Subject: Re: [migration_cpu_stop] WARNING: CPU: 0 PID: 11 at kernel/sched/core.c:1187 set_task_cpu+0x257/0x6b6
Date: Tue, 21 Nov 2017 14:34:03 +0100	[thread overview]
Message-ID: <20171121133403.GH3165@worktop.lehotels.local> (raw)
In-Reply-To: <20171121120420.lrj46mwmvxhpfwdr@wfg-t540p.sh.intel.com>

On Tue, Nov 21, 2017 at 08:04:20PM +0800, Fengguang Wu wrote:
> Hello,
> 
> FYI this happens in mainline kernel 4.14.0-00902-g43ff2f4.
> It happens since 4.13.
> 
> It occurs in 7 out of 36 boots.
> 
> [   58.171538] no ifx modem active;
> [   58.211860] ACPI: Preparing to enter system sleep state S5
> [   58.216823] reboot: Power down
> [   58.244526] acpi_power_off called
> [   61.460467] ------------[ cut here ]------------
> [   61.465481] WARNING: CPU: 0 PID: 11 at kernel/sched/core.c:1187 set_task_cpu+0x257/0x6b6:
> 						set_task_cpu at kernel/sched/core.c:1187

Never seen that before.. but I can't even figure out how CPUs end up
offline in that reboot path :/

So far I just get lost in the callback maze... Rafael any clues?

  reply	other threads:[~2017-11-21 13:34 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-21  9:05 active bugs in the first week of 4.15 merge window Fengguang Wu
2017-11-21 10:04 ` [test_abba] WARNING: possible circular locking dependency detected Fengguang Wu
2017-11-21 10:54 ` [ata_port_detach] WARNING: CPU: 0 PID: 1 at drivers/ata/libata-core.c:6613 ata_port_detach+0x9b/0x180 Fengguang Wu
2017-11-21 11:30   ` Arnd Bergmann
2017-11-21 11:07 ` [tracer_init_tracefs] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1] Fengguang Wu
2017-11-21 12:27   ` Fengguang Wu
2017-11-21 13:55     ` Thomas Gleixner
2017-11-21 11:10 ` [rbtree_test_init] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper:1] Fengguang Wu
2017-11-21 21:59   ` Andrew Morton
2017-11-22  2:15     ` Fengguang Wu
2017-11-21 11:19 ` [rht_deferred_worker] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 62s! Fengguang Wu
2017-11-21 11:52   ` [test_rht_init] INFO: task swapper/0:1 blocked for more than 120 seconds Fengguang Wu
2017-11-27 21:34     ` Linus Torvalds
2017-11-27 21:32   ` [rht_deferred_worker] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 62s! Linus Torvalds
2017-11-21 11:53 ` [vga_arb_device_init] WARNING: possible circular locking dependency detected Fengguang Wu
2017-11-21 16:52   ` Lukas Wunner
2017-11-22  9:07     ` Daniel Vetter
2017-11-21 17:08   ` [char-misc] " Daniel Vetter
2017-11-21 12:04 ` [migration_cpu_stop] WARNING: CPU: 0 PID: 11 at kernel/sched/core.c:1187 set_task_cpu+0x257/0x6b6 Fengguang Wu
2017-11-21 13:34   ` Peter Zijlstra [this message]
2017-11-21 13:51     ` Fengguang Wu
2017-11-21 16:13       ` Paul E. McKenney
2017-11-22 12:18         ` Fengguang Wu
2017-11-21 14:01     ` Rafael J. Wysocki
2017-11-21 12:09 ` [ata_port_probe] BUG: unable to handle kernel NULL pointer dereference at 0000000000000350 Fengguang Wu
2017-11-21 12:19   ` Fengguang Wu
2017-11-21 12:54     ` Arnd Bergmann
2017-11-21 14:57       ` Tejun Heo
2017-11-21 15:30         ` Arnd Bergmann
2017-11-21 12:33 ` [serial8250_interrupt] RIP: 0010:arch_local_irq_restore+0x2/0x8 Fengguang Wu
2017-11-21 13:31   ` Fengguang Wu
2017-11-21 14:39     ` Andy Shevchenko
2017-11-21 21:14       ` Andy Shevchenko
2017-11-22 23:36       ` Fengguang Wu
2017-11-22 23:43         ` Fengguang Wu
2017-11-21 12:41 ` [e1000_shutdown] e1000 0000:00:03.0: disabling already-disabled device Fengguang Wu
2017-11-21 22:10   ` Tushar Dave
2017-11-22 23:13     ` Fengguang Wu
2017-11-27 19:31       ` Tushar Dave
2017-12-04 11:33         ` Fengguang Wu
2017-12-05 19:19           ` Tushar Dave
2017-11-21 12:50 ` [test_cycle_work] WARNING: possible circular locking dependency detected Fengguang Wu
2017-11-21 13:01 ` [hrtimer_active] INFO: trying to register non-static key Fengguang Wu
2017-11-22 14:37   ` [hrtimer_active ^W ata_port_wait_eh] " Thomas Gleixner
2017-11-24 12:49     ` Tejun Heo
2017-11-24 13:41       ` Fengguang Wu
     [not found] ` <20171121121233.3pvkb34tci47n634@wfg-t540p.sh.intel.com>
2017-11-21 13:28   ` [RING_BUFFER_BENCHMARK] INFO: task rb_producer:73 blocked for more than 120 seconds Fengguang Wu

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