diff options
Diffstat (limited to 'sys/conf/NOTES')
| -rw-r--r-- | sys/conf/NOTES | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/conf/NOTES b/sys/conf/NOTES index 222d01a..1103ccf 100644 --- a/sys/conf/NOTES +++ b/sys/conf/NOTES @@ -139,8 +139,14 @@ options APIC_IO # Symmetric (APIC) I/O # MUTEX_DEBUG enables various extra assertions in the mutex code. # WITNESS enables the mutex witness code which detects deadlocks and cycles # during locking operations. +# WITNESS_DDB causes the witness code to drop into the kernel debugger if +# a lock heirarchy violation occurs or if locks are held when going to +# sleep. +# WITNESS_SKIPSPIN disables the witness checks on spin mutexes. options MUTEX_DEBUG options WITNESS +options WITNESS_DDB +options WITNESS_SKIPSPIN ##################################################################### |
