lkml.org 
[lkml]   [2006]   [Nov]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
SubjectRe: [patch] lockdep: show held locks when showing a stackdump

* 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/
\
 
 \ /
  Last update: 2006-11-16 15:05    [W:0.029 / U:2.352 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site