Messages in this thread Patch in this message | | | Date | Thu, 16 Nov 2006 11:08:52 +0100 | From | Ingo Molnar <> | Subject | [patch] lockdep: show held locks when showing a stackdump |
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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.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
--- arch/i386/kernel/traps.c | 1 + arch/x86_64/kernel/traps.c | 1 + 2 files changed, 2 insertions(+)
Index: linux/arch/i386/kernel/traps.c =================================================================== --- linux.orig/arch/i386/kernel/traps.c +++ linux/arch/i386/kernel/traps.c @@ -318,6 +318,7 @@ static void show_stack_log_lvl(struct ta } printk("\n%sCall Trace:\n", log_lvl); show_trace_log_lvl(task, regs, esp, log_lvl); + debug_show_held_locks(task); } void show_stack(struct task_struct *task, unsigned long *esp) Index: linux/arch/x86_64/kernel/traps.c =================================================================== --- linux.orig/arch/x86_64/kernel/traps.c +++ linux/arch/x86_64/kernel/traps.c @@ -405,6 +405,7 @@ show_trace(struct task_struct *tsk, stru printk("\nCall Trace:\n"); dump_trace(tsk, regs, stack, &print_trace_ops, NULL); printk("\n"); + debug_show_held_locks(tsk); } static void - 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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