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Don't do IPIs on behalf of interrupt threads.

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just punt straight on through to teh preemption code.

Make a KASSSERT out of a condition that can no longer occur.
MFC after:	1 week
This commit is contained in:
Julian Elischer 2004-09-06 07:23:14 +00:00
parent 7a31cc1039
commit 6a574b2afc
2 changed files with 5 additions and 4 deletions
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4
sys/kern/kern_switch.c
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@ -502,8 +502,8 @@ maybe_preempt(struct thread *td)
* to the new thread.
*/
ctd = curthread;
if (ctd->td_kse == NULL || ctd->td_kse->ke_thread != ctd)
return (0);
KASSERT ((ctd->td_kse != NULL && ctd->td_kse->ke_thread == ctd),
("thread has no (or wrong) sched-private part."));
pri = td->td_priority;
cpri = ctd->td_priority;
if (pri >= cpri || cold /* || dumping */ || TD_IS_INHIBITED(ctd) ||

5
sys/kern/sched_4bsd.c
View File

@ -949,9 +949,10 @@ sched_add(struct thread *td, int flags)
* the thread is unpinned
* or pinned to another cpu,
* and there are other available and idle CPUs.
* if we are idle, then skip straight to preemption.
* if we are idle, or it's an interrupt,
* then skip straight to preemption.
*/
if ( (! idle) &&
if ( (! idle) && ((flags & SRQ_INTR) == 0) &&
(idle_cpus_mask & ~(hlt_cpus_mask | me)) &&
( KSE_CAN_MIGRATE(ke) ||
ke->ke_runq != &runq_pcpu[PCPU_GET(cpuid)])) {