On Wed, 22 Feb, at 12:41:01PM, Linus Torvalds wrote: > 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)
I think Peter has the fix for this somewhere, but it doesn't look like it made it to tip/sched/core. Peter, this is the original patch, https://lkml.kernel.org/r/20170202155506.gx6...@twins.programming.kicks-ass.net
