On Fri 23-10-15 00:37:03, Tejun Heo wrote: > On Thu, Oct 22, 2015 at 05:35:59PM +0200, Michal Hocko wrote: > > But that shouldn't happen because the allocation path does cond_resched > > even when nothing is really reclaimable (e.g. wait_iff_congested from > > __alloc_pages_slowpath). > > cond_resched() isn't enough. The work item should go !RUNNING, not > just yielding.
I am confused. What makes rescuer to not run? Nothing seems to be hogging CPUs, we are just out of workers which are loopin in the allocator but that is preemptible context. -- Michal Hocko SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
