From: Michael Holzheu <holzheu@linux.vnet.ibm.com>
To: vgoyal@redhat.com
Cc: oomichi@mxs.nes.nec.co.jp, linux-s390@vger.kernel.org,
mahesh@linux.vnet.ibm.com, heiko.carstens@de.ibm.com,
linux-kernel@vger.kernel.org, hbabu@us.ibm.com,
horms@verge.net.au, ebiederm@xmission.com,
schwidefsky@de.ibm.com, kexec@lists.infradead.org
Subject: [patch v2 04/10] kdump: Trigger kdump via panic notifier chain on s390
Date: Wed, 27 Jul 2011 14:55:08 +0200 [thread overview]
Message-ID: <20110727125808.028895659@linux.vnet.ibm.com> (raw)
In-Reply-To: 20110727125504.491183728@linux.vnet.ibm.com
[-- Attachment #1: s390-kdump-common-shutdown-action.patch --]
[-- Type: text/plain, Size: 1118 bytes --]
From: Michael Holzheu <holzheu@linux.vnet.ibm.com>
On s390 we have the possibility to configure actions that are executed in
case of a kernel panic. E.g. it is possible to automatically trigger an s390
stand-alone dump. The actions are called via a panic notifier. We also want
to trigger kdump via the notifier call chain. Therefore this patch disables
for s390 the direct kdump invocation in the panic() function.
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
---
kernel/panic.c | 3 +++
1 file changed, 3 insertions(+)
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -84,9 +84,12 @@ NORET_TYPE void panic(const char * fmt,
/*
* If we have crashed and we have a crash kernel loaded let it handle
* everything else.
+ * For s390 kdump is triggered via the panic notifier call chain.
* Do we want to call this before we try to display a message?
*/
+#if !defined(CONFIG_S390)
crash_kexec(NULL);
+#endif
kmsg_dump(KMSG_DUMP_PANIC);
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next prev parent reply other threads:[~2011-07-27 12:58 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-27 12:55 [patch v2 00/10] kdump: Patch series for s390 support (version 2) Michael Holzheu
2011-07-27 12:55 ` [patch v2 01/10] kdump: Add KEXEC_CRASH_CONTROL_MEMORY_LIMIT Michael Holzheu
2011-08-01 20:16 ` Vivek Goyal
2011-08-02 9:51 ` Michael Holzheu
2011-08-02 19:16 ` Vivek Goyal
2011-08-03 9:27 ` Michael Holzheu
2011-07-27 12:55 ` [patch v2 02/10] kdump: Make kimage_load_crash_segment() weak Michael Holzheu
2011-08-01 20:31 ` Vivek Goyal
2011-08-02 9:30 ` Michael Holzheu
2011-08-02 18:55 ` Vivek Goyal
2011-08-03 10:41 ` Michael Holzheu
2011-08-04 20:25 ` Vivek Goyal
2011-07-27 12:55 ` [patch v2 03/10] kdump: Add size to elfcorehdr kernel parameter Michael Holzheu
2011-08-01 20:36 ` Vivek Goyal
2011-08-02 9:08 ` Michael Holzheu
2011-08-02 18:55 ` Vivek Goyal
2011-08-03 10:40 ` Michael Holzheu
2011-07-27 12:55 ` Michael Holzheu [this message]
2011-08-01 20:41 ` [patch v2 04/10] kdump: Trigger kdump via panic notifier chain on s390 Vivek Goyal
2011-08-02 8:37 ` Michael Holzheu
2011-08-02 19:21 ` Vivek Goyal
2011-08-03 9:50 ` Michael Holzheu
2011-08-04 21:14 ` Vivek Goyal
2011-08-08 17:47 ` Michael Holzheu
2011-08-09 21:19 ` Vivek Goyal
2011-07-27 12:55 ` [patch v2 05/10] s390: Add PSW restart shutdown trigger Michael Holzheu
2011-08-01 20:54 ` Vivek Goyal
2011-08-02 8:05 ` Michael Holzheu
2011-07-27 12:55 ` [patch v2 06/10] s390: Export store_status() function Michael Holzheu
2011-07-27 12:55 ` [patch v2 07/10] s390: Use diagnose 308 for system reset Michael Holzheu
2011-07-27 12:55 ` [patch v2 08/10] s390: Add real memory access functions Michael Holzheu
2011-07-27 12:55 ` [patch v2 09/10] s390: kdump backend code Michael Holzheu
2011-07-27 12:55 ` [patch v2 10/10] kexec-tools: Add s390 kdump support Michael Holzheu
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