From: Ben Greear <[email protected]> This helps debug cases where a lock is acquired over and over without being released.
Signed-off-by: Ben Greear <[email protected]> --- kernel/lockdep.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-) diff --git a/kernel/lockdep.c b/kernel/lockdep.c index 7981e5b..7e76b69 100644 --- a/kernel/lockdep.c +++ b/kernel/lockdep.c @@ -3189,8 +3189,12 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass, return 0; #endif if (unlikely(curr->lockdep_depth >= MAX_LOCK_DEPTH)) { + debug_show_all_locks(); + lockdep_print_held_locks(current); + debug_locks_off(); - printk("BUG: MAX_LOCK_DEPTH too low!\n"); + printk("BUG: MAX_LOCK_DEPTH too low, depth: %i max: %lu!\n", + curr->lockdep_depth, MAX_LOCK_DEPTH); printk("turning off the locking correctness validator.\n"); dump_stack(); return 0; -- 1.7.3.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
