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authorKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>2009-12-22 03:15:43 +0000
committerDavid Woodhouse <David.Woodhouse@intel.com>2009-12-31 19:45:04 +0000
commit0f4bd46ec252887f44f1f065b41867cac8f70dfb (patch)
treedaa176e9f9e1f5e9ba8c5476b5333142f31aa062 /kernel/printk.c
parent60d9aa758c00f20ade0cb1951f6a934f628dd2d7 (diff)
downloadlwn-0f4bd46ec252887f44f1f065b41867cac8f70dfb.tar.gz
lwn-0f4bd46ec252887f44f1f065b41867cac8f70dfb.zip
kmsg_dump: Dump on crash_kexec as well
crash_kexec gets called before kmsg_dump(KMSG_DUMP_OOPS) if panic_on_oops is set, so the kernel log buffer is not stored for this case. This patch adds a KMSG_DUMP_KEXEC dump type which gets called when crash_kexec() is invoked. To avoid getting double dumps, the old KMSG_DUMP_PANIC is moved below crash_kexec(). The mtdoops driver is modified to handle KMSG_DUMP_KEXEC in the same way as a panic. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Acked-by: Simon Kagstrom <simon.kagstrom@netinsight.net> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'kernel/printk.c')
-rw-r--r--kernel/printk.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/printk.c b/kernel/printk.c
index 1ded8e7dd19b..2c9dc0b03a5e 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -1467,6 +1467,7 @@ EXPORT_SYMBOL_GPL(kmsg_dump_unregister);
static const char const *kmsg_reasons[] = {
[KMSG_DUMP_OOPS] = "oops",
[KMSG_DUMP_PANIC] = "panic",
+ [KMSG_DUMP_KEXEC] = "kexec",
};
static const char *kmsg_to_str(enum kmsg_dump_reason reason)