[PATCH] sched: print module list in the "scheduling while atomic" warning

[PATCH] sched: print module list in the "scheduling while atomic" warning

[Arjan van de Ven]

From: Arjan van de Ven <arjan@linux.intel.com>
Subject: [PATCH] sched: print module list in the "scheduling while atomic" warning

For the normal WARN_ON() etc we added a print-the-modules-list already,
which is very useful to figure out candidates for certain types of bugs.

This patch adds the same print to the "scheduling while atomic" BUG warning,
for the same reason: when we get here it's very useful to see which modules
are loaded, to narrow down the candidate code list.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
---
 kernel/sched.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/kernel/sched.c b/kernel/sched.c
index cfa222a..764b5b6 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4411,6 +4411,7 @@ static noinline void __schedule_bug(struct task_struct *prev)
 		prev->comm, prev->pid, preempt_count());
 
 	debug_show_held_locks(prev);
+	print_modules();
 	if (irqs_disabled())
 		print_irqtrace_events(prev);
 
-- 
1.5.4.5

Re: [PATCH] sched: print module list in the "scheduling while atomic" warning

[Thomas Gleixner]

On Fri, 23 May 2008, Arjan van de Ven wrote:
> From: Arjan van de Ven <arjan@linux.intel.com>
> Subject: [PATCH] sched: print module list in the "scheduling while atomic" warning

Applied. Thanks,

	 tglx