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Don't treat NOCPU as a valid CPU to CPU_ISSET.

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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
This commit is contained in:
jhb 2016-07-29 20:19:14 +00:00
parent 90f6fb9380
commit 040924b411
1 changed files with 1 additions and 1 deletions
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2
sys/kern/sched_4bsd.c
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@ -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;