From: Konstantin Khlebnikov <khlebnikov@openvz.org>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Ingo Molnar <mingo@redhat.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH v2] sched: taint kernel with TAINT_WARN after sleep-in-atomic bug
Date: Thu, 10 May 2012 16:20:04 +0400 [thread overview]
Message-ID: <20120510122004.4873.12726.stgit@zurg> (raw)
In-Reply-To: <1336650398.27020.91.camel@laptop>
Usually sleep-in-atomic bugs are followed by dozens other warnings.
This patch should help to figure out original source of problem.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
---
kernel/sched/core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 0533a68..b6458e4 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -3113,6 +3113,7 @@ static noinline void __schedule_bug(struct task_struct *prev)
if (irqs_disabled())
print_irqtrace_events(prev);
dump_stack();
+ add_taint(TAINT_WARN);
}
/*
next prev parent reply other threads:[~2012-05-10 12:20 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-10 7:54 [PATCH] sched: set TAINT_UNSAFE_SMP " Konstantin Khlebnikov
2012-05-10 10:01 ` Peter Zijlstra
2012-05-10 10:56 ` Konstantin Khlebnikov
2012-05-10 11:46 ` Peter Zijlstra
2012-05-10 12:20 ` Konstantin Khlebnikov [this message]
2012-05-18 8:54 ` [PATCH v2] sched: taint kernel with TAINT_WARN " Peter Zijlstra
2012-05-18 11:16 ` [tip:sched/core] sched: Taint " tip-bot for Konstantin Khlebnikov
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