diff options
Diffstat (limited to 'sys/kern/kern_mutex.c')
| -rw-r--r-- | sys/kern/kern_mutex.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/sys/kern/kern_mutex.c b/sys/kern/kern_mutex.c index bf157eb..bbfac1b 100644 --- a/sys/kern/kern_mutex.c +++ b/sys/kern/kern_mutex.c @@ -690,12 +690,18 @@ _mtx_lock_spin(struct mtx *m, int opts, const char *file, int line) if (i < 60000000) DELAY(1); #ifdef DDB - else if (!db_active) + else if (!db_active) { #else - else + else { #endif - panic("spin lock %s held by %p for > 5 seconds", + printf("spin lock %s held by %p for > 5 seconds\n", m->mtx_object.lo_name, (void *)m->mtx_lock); +#ifdef WITNESS + witness_display_spinlock(&m->mtx_object, + mtx_owner(m)); +#endif + panic("spin lock held too long"); + } #ifdef __i386__ ia32_pause(); #endif |
