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From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>, Ingo Molnar <mingo@elte.hu>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] print RT watchdog message
Date: Thu, 15 May 2008 18:59:54 -0700	[thread overview]
Message-ID: <482CEA9A.7010504@ct.jp.nec.com> (raw)

From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>

It's useful to detect which process is killed by RT watchdog.
---
 kernel/posix-cpu-timers.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
index f1525ad..c42a03a 100644
--- a/kernel/posix-cpu-timers.c
+++ b/kernel/posix-cpu-timers.c
@@ -1037,6 +1037,9 @@ static void check_thread_timers(struct task_struct *tsk,
 				sig->rlim[RLIMIT_RTTIME].rlim_cur +=
 								USEC_PER_SEC;
 			}
+			printk(KERN_INFO
+				"RT Watchdog Timeout: %s[%d]\n",
+				tsk->comm, task_pid_nr(tsk));
 			__group_send_sig_info(SIGXCPU, SEND_SIG_PRIV, tsk);
 		}
 	}
-- 
1.5.4.1


             reply	other threads:[~2008-05-16  2:00 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-05-16  1:59 Hiroshi Shimamoto [this message]
2008-05-16  2:42 ` [PATCH] print RT watchdog message Hiroshi Shimamoto
2008-05-16 11:31   ` Ingo Molnar

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