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| author | kib <kib@FreeBSD.org> | 2008-09-27 15:45:54 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2008-09-27 15:45:54 +0000 |
| commit | 1fb31bd1679881409fff32bda5a1201ecf8d56e9 (patch) | |
| tree | ad38de66a196f964e2ab8090f18db54fc15a6219 /sys/kern/kern_shutdown.c | |
| parent | e873cabccd956a8738db1ee6d04dc32c1614c9e3 (diff) | |
| download | FreeBSD-src-1fb31bd1679881409fff32bda5a1201ecf8d56e9.zip FreeBSD-src-1fb31bd1679881409fff32bda5a1201ecf8d56e9.tar.gz | |
If the panic thread is preempted after setting panicstr but before
setting TDF_INPANIC then it will never be rescheduled again. Wrap
setting the panic condition with the critical section.
Noted and reviewed by: tegge
MFC after: 1 week
Diffstat (limited to 'sys/kern/kern_shutdown.c')
| -rw-r--r-- | sys/kern/kern_shutdown.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/kern/kern_shutdown.c b/sys/kern/kern_shutdown.c index 6c3d82d..e6d4f44 100644 --- a/sys/kern/kern_shutdown.c +++ b/sys/kern/kern_shutdown.c @@ -511,6 +511,7 @@ panic(const char *fmt, ...) va_list ap; static char buf[256]; + critical_enter(); #ifdef SMP /* * We don't want multiple CPU's to panic at the same time, so we @@ -569,6 +570,7 @@ panic(const char *fmt, ...) /* thread_unlock(td); */ if (!sync_on_panic) bootopt |= RB_NOSYNC; + critical_exit(); boot(bootopt); } |
