On RedHat, I validate ipmi watchdog to reset machine when kernel panic:
1. I disable auto reset when kernel panic by echo "0" > /proc/sys/kernel/panic
2. modprobe ipmi_watchdog timeout=120 action=reset
3. Load a driver, the driver will call panic() when ioctl to call into the
driver.
4. By ioctl call into the driver, panic the system
It fail to reset the machine. I check the IPMI SEL there is no SEL log about
watchdog information.
What's else I need to do to enable watchdog to reset machine when kernel
panic???
Addition:
If I run modprobe ipmi_watchdog timeout=120 action=reset start_now=1, the
watchdog will reset the machine and record SEL log about watchdog.
Thanks & Regards,
Song Youquan
OTC-Beijing
Intel SSG/SSD
MOB: 13681289076
TEL: 010-82611515-1326
INET: 8-758-1326
LOC: Raycom 6W062
-----Original Message-----
From: Corey Minyard [mailto:[EMAIL PROTECTED]
Sent: 2007年11月9日 0:04
To: Song, Youquan
Cc: ipmitool-devel@lists.sourceforge.net
Subject: Re: [Ipmitool-devel] How to set PEF action?
Song, Youquan wrote:
>
> Hi,
>
> I want try to do: If watchdog timer expire, IPMI BMC to power
> reset the system. By IPMI spec, I know I can set PEF watchdog expire
> event's action to power reset.
>
> But by ipmitool, I can not set PEF action.
> What's can I do to power reset system by watchdog timer
> expire?
>
> If Linux kernel panic, can BMC notice it? Is there linux
> dameon to notice BMC it?
>
There is a watchdog timer driver as part of the Linux IPMI driver, and
the ability to put panic information into the event log (SEL). See
Documentation/IPMI.txt in the kernel sources for details on it. It will
do what you want.
>
-corey
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