diff options
| author | rwatson <rwatson@FreeBSD.org> | 2004-07-06 05:57:29 +0000 |
|---|---|---|
| committer | rwatson <rwatson@FreeBSD.org> | 2004-07-06 05:57:29 +0000 |
| commit | fef549cb0131530fbf9f34d7c9a80e54a6d775b7 (patch) | |
| tree | c0d698bf51e44a2ab495d0ac2ed9392abcb174fc /sys | |
| parent | 281b0e4e91b636c9bd22e56c913c981e2e66fd89 (diff) | |
| download | FreeBSD-src-fef549cb0131530fbf9f34d7c9a80e54a6d775b7.zip FreeBSD-src-fef549cb0131530fbf9f34d7c9a80e54a6d775b7.tar.gz | |
Temporarily disable preemption in SCHED_ULE due to reported panics and
hangs due to recent preemption changes. This change appears to remove
the panic that I was running into, but at the cost of increasing
ithread scheduling latency, and as such is a temporary band-aid until
jhb has a chance to resolve the ule<->preemption interaction that is
the source of the problem. If it doesn't fix the problem for others--
sorry!
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/kern/sched_ule.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/kern/sched_ule.c b/sys/kern/sched_ule.c index 7eb8218..b37ab0c 100644 --- a/sys/kern/sched_ule.c +++ b/sys/kern/sched_ule.c @@ -1623,6 +1623,7 @@ sched_add(struct thread *td) if (td->td_priority < curthread->td_priority) curthread->td_flags |= TDF_NEEDRESCHED; +#if 0 #ifdef SMP /* * Only try to preempt if the thread is unpinned or pinned to the @@ -1632,6 +1633,7 @@ sched_add(struct thread *td) #endif if (maybe_preempt(td)) return; +#endif ke->ke_ksegrp->kg_runq_kses++; ke->ke_state = KES_ONRUNQ; |
