Re: WARNING: CPU: 1 PID: 15 at kernel/sched/sched.h:804 assert_clock_updated.isra.62.part.63+0x25/0x27

[Matt Fleming]

On Sat, 28 Jan, at 08:21:05AM, Mike Galbraith wrote:
> Running Steven's hotplug stress script in tip.today.  Config is
> NOPREEMPT, tune for maximum build time (enterprise default-ish).
> 
> [   75.268049] x86: Booting SMP configuration:
> [   75.268052] smpboot: Booting Node 0 Processor 1 APIC 0x2
> [   75.279994] smpboot: Booting Node 0 Processor 2 APIC 0x4
> [   75.294617] smpboot: Booting Node 0 Processor 4 APIC 0x1
> [   75.310698] smpboot: Booting Node 0 Processor 5 APIC 0x3
> [   75.359056] smpboot: CPU 3 is now offline
> [   75.415505] smpboot: CPU 4 is now offline
> [   75.479985] smpboot: CPU 5 is now offline
> [   75.550674] ------------[ cut here ]------------
> [   75.550678] WARNING: CPU: 1 PID: 15 at kernel/sched/sched.h:804 assert_clock_updated.isra.62.part.63+0x25/0x27
> [   75.550679] rq->clock_update_flags < RQCF_ACT_SKIP

The following patch queued in tip/sched/core should fix this issue:

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