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Date: Wed, 22 Feb 2017 12:41:01 -0800 From: Linus Torvalds <torvalds@...ux-foundation.org> To: Ingo Molnar <mingo@...nel.org>, Matt Fleming <matt@...eblueprint.co.uk> Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Peter Zijlstra <a.p.zijlstra@...llo.nl>, Thomas Gleixner <tglx@...utronix.de>, Mike Galbraith <efault@....de>, Andrew Morton <akpm@...ux-foundation.org> Subject: Re: [GIT PULL] scheduler changes for v4.11 Hmm. The scheduler changes seem to show problems with suspend/resume. I now get his when suspending: ... Disabling non-boot CPUs ... Cannot set affinity for irq 285 smpboot: CPU 1 is now offline ------------[ cut here ]------------ WARNING: CPU: 2 PID: 25 at kernel/sched/sched.h:812 update_load_avg+0x779/0xa70 rq->clock_update_flags < RQCF_ACT_SKIP ... Call Trace: update_load_avg+0x779/0xa70 set_next_entity+0xd9/0x220 pick_next_task_fair+0x88/0x550 sched_cpu_dying+0x1cf/0x2a0 cpuhp_invoke_callback+0x80/0x3b0 take_cpu_down+0x5e/0xa0 multi_cpu_stop+0xb6/0xe0 the issue may have been going on for a while, but the new WARN_ON() was added in this merge window. (Not sure how consistent this warning is, it definitely doesn't happen every time, I've only seen it once) Linus
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