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Message-ID: <tip-f80f749132165fb083865e51afd65cf0f05dcd62@git.kernel.org>
Date: Fri, 18 May 2012 03:49:44 -0700
From: tip-bot for Seiji Aguchi <seiji.aguchi@....com>
To: linux-tip-commits@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, satoru.moriya@....com, hpa@...or.com,
mingo@...nel.org, a.p.zijlstra@...llo.nl, seiji.aguchi@....com,
tony.luck@...el.com, dle-develop@...ts.sourceforge.net,
tglx@...utronix.de, dzickus@...hat.com
Subject: [tip:core/debug] kdump: Execute kmsg_dump(KMSG_DUMP_PANIC)
after smp_send_stop()
Commit-ID: f80f749132165fb083865e51afd65cf0f05dcd62
Gitweb: http://git.kernel.org/tip/f80f749132165fb083865e51afd65cf0f05dcd62
Author: Seiji Aguchi <seiji.aguchi@....com>
AuthorDate: Tue, 15 May 2012 17:35:09 -0400
Committer: Ingo Molnar <mingo@...nel.org>
CommitDate: Fri, 18 May 2012 10:07:37 +0200
kdump: Execute kmsg_dump(KMSG_DUMP_PANIC) after smp_send_stop()
This patch moves kmsg_dump(KMSG_DUMP_PANIC) below smp_send_stop(),
to serialize the crash-logging process via smp_send_stop() and to
thus retrieve a more stable crash image of all CPUs stopped.
Signed-off-by: Seiji Aguchi <seiji.aguchi@....com>
Acked-by: Don Zickus <dzickus@...hat.com>
Cc: dle-develop@...ts.sourceforge.net <dle-develop@...ts.sourceforge.net>
Cc: Satoru Moriya <satoru.moriya@....com>
Cc: Tony Luck <tony.luck@...el.com>
Cc: a.p.zijlstra@...llo.nl <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/5C4C569E8A4B9B42A84A977CF070A35B2E4D7A5CE2@USINDEVS01.corp.hds.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
kernel/panic.c | 2 --
1 files changed, 0 insertions(+), 2 deletions(-)
diff --git a/kernel/panic.c b/kernel/panic.c
index b6215b7..d4f0b61 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -108,8 +108,6 @@ void panic(const char *fmt, ...)
*/
crash_kexec(NULL);
- kmsg_dump(KMSG_DUMP_PANIC);
-
/*
* Note smp_send_stop is the usual smp shutdown function, which
* unfortunately means it may not be hardened to work in a panic
--
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