Hi All,
On IBMx3650 (IPMIv2.0-compliant), running FreeBSD6.2.
I noticed that my system is halting services for around 4-5 minutes, without
sufficient logs on the system (system.log) that can bring me to the right
conclusion (whether caused by unexpected reboots, etc).
I then retrieved the system event logs (SEL) from the baseboard chip using
FreeIPMI v0.6.3, and noticed for multiple "System Event #0:System Reconfigured"
logs.
The latest would be
"54:23-Jan-2009 11:28:55:System Event #0:System Reconfigured"
This is somewhat weird, as I did NOT change any in the system (BIOS, OS, BMC
firmware, etc.) This is the cause of service halts as verified though my mrtg,
and the system uptime.
I usually get logs like the following (e.g. only) when such unresponsiveness is
due to watchdog triggering,
24-Jan-2009 17:09:30:Watchdog 2 Watchdog:Hard Reset
OEM defined = 00 00
00 00 00 E3 25 86 80 00 00 FF 00
or is simply due to manual/unexpected reboot ("init 0"/kernel panic):
OEM defined = 00 00
00 00 00 E3 25 86 80 00 00 FF 00
With these, I suspect that the unresponsiveness of the system is not caused by
a REAL reboots. Is there any possibily that the system's uptime can be changed
even without restarting the box? What was that "system event #0;system
reconfigured" mean? Is this related to SMM switching? by an attacker?
Thanks,
Won
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