diff options
| author | Gleb Smirnoff <glebius@FreeBSD.org> | 2026-07-17 01:37:03 +0000 |
|---|---|---|
| committer | Gleb Smirnoff <glebius@FreeBSD.org> | 2026-07-17 01:37:03 +0000 |
| commit | 56ac3351c61f285ee5b8c9bd4411eeaeb20efe26 (patch) | |
| tree | 56b20c8eba9bc377cc21378f83336e7f4f01085a | |
| parent | f967dd04c880e9c9c68cd20de135d77b3ca1c26d (diff) | |
witness: fix operation without WITNESS_SKIPSPIN
Since malloc(9) even with M_NOWAIT is forbidden when we hold a spinlock,
we can't print detailed lock tree as the operation tries to allocate
memory.
Fixes: fb4b0c91195195561560bb2fb2c1ba8da81f7ccf
| -rw-r--r-- | sys/kern/subr_witness.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/kern/subr_witness.c b/sys/kern/subr_witness.c index 52f8fa51fd25..92fa8c0799d8 100644 --- a/sys/kern/subr_witness.c +++ b/sys/kern/subr_witness.c @@ -1738,7 +1738,8 @@ witness_checkorder(struct lock_object *lock, int flags, const char *file, "lock order reversal: (Giant after non-sleepable)\n"); else { witness_output("lock order reversal:\n"); - print_lock_order = true; + if (lock_list == td->td_sleeplocks) + print_lock_order = true; } /* |