Messages in this thread Patch in this message | | | Date | Thu, 16 Nov 2006 15:01:14 +0100 | From | Ingo Molnar <> | Subject | Re: [patch] lockdep: show held locks when showing a stackdump |
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* Ingo Molnar <mingo@elte.hu> wrote:
> Subject: [patch] lockdep: show held locks when showing a stackdump > From: Ingo Molnar <mingo@elte.hu> > > lockdep can be used to print held locks when printing a backtrace. > This can be useful when debugging things like 'scheduling while > atomic' asserts.
on x86_64 this also needs the patch below - NULL means 'current'.
Ingo
Index: linux/kernel/lockdep.c =================================================================== --- linux.orig/kernel/lockdep.c +++ linux/kernel/lockdep.c @@ -395,7 +395,11 @@ static void print_lock(struct held_lock static void lockdep_print_held_locks(struct task_struct *curr) { - int i, depth = curr->lockdep_depth; + int i, depth; + + if (!curr) + curr = current; + depth = curr->lockdep_depth; if (!depth) { printk("no locks held by %s/%d.\n", curr->comm, curr->pid); - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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