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From: Takenori Nagano <t-nagano@ah.jp.nec.com>
To: linux-kernel@vger.kernel.org
Cc: k-miyoshi@cb.jp.nec.com, Bernhard Walle <bwalle@suse.de>,
	kdb@oss.sgi.com, kexec@lists.infradead.org, vgoyal@in.ibm.com,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	Keith Owens <kaos@ocs.com.au>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH 0/2] add new notifier function
Date: Thu, 04 Oct 2007 20:38:05 +0900	[thread overview]
Message-ID: <4704D09D.6080503@ah.jp.nec.com> (raw)

Hi,

These patches add new notifier function and implement it to panic_notifier_list.
We used the hardcoded notifier chain so far, but it was not flexible. New
notifier is very flexible, because user can change a list of order by debugfs.

Please review, and give some comments.

Thanks,

Example)

# cd /sys/kernel/debug/
# ls
kprobes  pktcdvd
# insmod ipmi_msghandler.ko
# ls
kprobes  panic_notifier_list  pktcdvd
# cd panic_notifier_list/
# ls
ipmi_msghandler
# insmod ipmi_watchdog.ko
# ls
ipmi_msghandler  ipmi_wdog
# cat ipmi_msghandler/priority
200
# cat ipmi_wdog/priority
150
#
Kernel panic - not syncing: panic
ipmi_msghandler : notifier calls panic_event().
ipmi_watchdog : notifier calls wdog_panic_handler().

.....(reboot)

# cat ipmi_msghandler/priority
200
# cat ipmi_wdog/priority
150
# echo 300 > ipmi_wdog/priority
#
Kernel panic - not syncing: panic
ipmi_watchdog : notifier calls wdog_panic_handler().
ipmi_msghandler : notifier calls panic_event().

-- 
Takenori Nagano <t-nagano@ah.jp.nec.com>



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WARNING: multiple messages have this Message-ID (diff)
From: Takenori Nagano <t-nagano@ah.jp.nec.com>
To: linux-kernel@vger.kernel.org
Cc: vgoyal@in.ibm.com, "Eric W. Biederman" <ebiederm@xmission.com>,
	k-miyoshi@cb.jp.nec.com, kexec@lists.infradead.org,
	Bernhard Walle <bwalle@suse.de>, Keith Owens <kaos@ocs.com.au>,
	Andrew Morton <akpm@linux-foundation.org>,
	kdb@oss.sgi.com
Subject: [PATCH 0/2] add new notifier function
Date: Thu, 04 Oct 2007 20:38:05 +0900	[thread overview]
Message-ID: <4704D09D.6080503@ah.jp.nec.com> (raw)

Hi,

These patches add new notifier function and implement it to panic_notifier_list.
We used the hardcoded notifier chain so far, but it was not flexible. New
notifier is very flexible, because user can change a list of order by debugfs.

Please review, and give some comments.

Thanks,

Example)

# cd /sys/kernel/debug/
# ls
kprobes  pktcdvd
# insmod ipmi_msghandler.ko
# ls
kprobes  panic_notifier_list  pktcdvd
# cd panic_notifier_list/
# ls
ipmi_msghandler
# insmod ipmi_watchdog.ko
# ls
ipmi_msghandler  ipmi_wdog
# cat ipmi_msghandler/priority
200
# cat ipmi_wdog/priority
150
#
Kernel panic - not syncing: panic
ipmi_msghandler : notifier calls panic_event().
ipmi_watchdog : notifier calls wdog_panic_handler().

.....(reboot)

# cat ipmi_msghandler/priority
200
# cat ipmi_wdog/priority
150
# echo 300 > ipmi_wdog/priority
#
Kernel panic - not syncing: panic
ipmi_watchdog : notifier calls wdog_panic_handler().
ipmi_msghandler : notifier calls panic_event().

-- 
Takenori Nagano <t-nagano@ah.jp.nec.com>



             reply	other threads:[~2007-10-04 11:42 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-04 11:38 Takenori Nagano [this message]
2007-10-04 11:38 ` [PATCH 0/2] add new notifier function Takenori Nagano
2007-10-05  4:33 ` Vivek Goyal
2007-10-05  4:33   ` Vivek Goyal
2007-10-05  5:43   ` Takenori Nagano
2007-10-05  5:43     ` Takenori Nagano
2007-10-05 13:01 ` Eric W. Biederman
2007-10-05 13:01   ` Eric W. Biederman
2007-10-09  7:38   ` Takenori Nagano
2007-10-09  7:38     ` Takenori Nagano

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