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| author | alfred <alfred@FreeBSD.org> | 2004-03-23 00:32:27 +0000 |
|---|---|---|
| committer | alfred <alfred@FreeBSD.org> | 2004-03-23 00:32:27 +0000 |
| commit | fbfae479f4ffc058f88cd1baf73dec483a0a1af2 (patch) | |
| tree | 69c94483ff9728560ce547294cf5fd07a76868db /sys | |
| parent | 0cae7408ddc80357dafc03d961848402f7ff8775 (diff) | |
| download | FreeBSD-src-fbfae479f4ffc058f88cd1baf73dec483a0a1af2.zip FreeBSD-src-fbfae479f4ffc058f88cd1baf73dec483a0a1af2.tar.gz | |
Emit a traceback when witness_trace is set and witness_warn() is
called and triggers (typically caused by sleeping with a non-sleepable
lock).
Reviewed by: jhb
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/kern/subr_witness.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/kern/subr_witness.c b/sys/kern/subr_witness.c index 95d7a83..3b05fff 100644 --- a/sys/kern/subr_witness.c +++ b/sys/kern/subr_witness.c @@ -1150,6 +1150,8 @@ witness_warn(int flags, struct lock_object *lock, const char *fmt, ...) #ifdef DDB else if (witness_ddb && n) Debugger(__func__); + else if (witness_trace && n) + backtrace(); #endif return (n); } |
