Date: Fri, 29 Jul 2016 20:19:14 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r303503 - head/sys/kern Message-ID: <201607292019.u6TKJE98050271@repo.freebsd.org>
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Author: jhb Date: Fri Jul 29 20:19:14 2016 New Revision: 303503 URL: https://svnweb.freebsd.org/changeset/base/303503 Log: Don't treat NOCPU as a valid CPU to CPU_ISSET. If a thread is created bound to a cpuset it might already be bound before it's very first timeslice, and td_lastcpu will be NOCPU in that case. MFC after: 1 week Modified: head/sys/kern/sched_4bsd.c Modified: head/sys/kern/sched_4bsd.c ============================================================================== --- head/sys/kern/sched_4bsd.c Fri Jul 29 19:36:10 2016 (r303502) +++ head/sys/kern/sched_4bsd.c Fri Jul 29 20:19:14 2016 (r303503) @@ -1241,7 +1241,7 @@ sched_pickcpu(struct thread *td) mtx_assert(&sched_lock, MA_OWNED); - if (THREAD_CAN_SCHED(td, td->td_lastcpu)) + if (td->td_lastcpu != NOCPU && THREAD_CAN_SCHED(td, td->td_lastcpu)) best = td->td_lastcpu; else best = NOCPU;
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