[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Freeipmi-devel] Re: [Freeipmi-users] bmc-watchdog and the OS watchdog i

From: Won De Erick
Subject: [Freeipmi-devel] Re: [Freeipmi-users] bmc-watchdog and the OS watchdog in BIOS
Date: Sun, 10 Aug 2008 18:34:25 -0700 (PDT)

Hi Al,

Thanks for your reply. Yes, I think this is a protection to the BIOS (not normally writable) so as not to let malicious progs to easily change the settings.



----- Original Message ----
From: Al Chu <address@hidden>
To: Won De Erick <address@hidden>
Cc: address@hidden; address@hidden
Sent: Sunday, August 10, 2008 8:49:45 PM
Subject: Re: [Freeipmi-users] bmc-watchdog and the OS watchdog in BIOS

Hey Won,

I cannot speak for your particular hardware.  I'm not sure if there is a
separate independent hardware watchdog. 

I can say, the settings you make with bmc-watchdog may not survive
across a system reboot.  It's very possible that after a system reboot,
the BIOS resets the watchdog values back to the system default, no
matter what you previously configured.


On Fri, 2008-08-08 at 18:11 -0700, Won De Erick wrote:
> Hi All,
> We've tried installing the bmc-watchdog utility in IBMx343 running FreeBSD. We've found out that it can interact with the built-in management processor. When the timer was set to 1 minute using bmc-watchdog -s command, the system restarted after the specified time. But this setting did not change the OS watchdog timer that was pre-configured using the BIOS utility. How are these two differ from each other?
> I've learned some known issues on using bmc-watchdog as specified in the following:
> Setting the watchdog timer on the user space is incomparable with an independent hardware watchdog (is this the case of the built-in management processor on the IBM x343 box?). Hope to receive some lights from all.
> Thanks,
> Won
> _______________________________________________
> Freeipmi-users mailing list
> address@hidden
> http://
Albert Chu
Computer Scientist
High Performance Systems Division
Lawrence Livermore National Laboratory

reply via email to

[Prev in Thread] Current Thread [Next in Thread]