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SubjectRe: [migration_cpu_stop] WARNING: CPU: 0 PID: 11 at kernel/sched/core.c:1187 set_task_cpu+0x257/0x6b6
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?

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