redhat crashes/ viewed logs

[bdb808757]

All,
I am a new admin taking over without much information about my new system. The issue I'm having is that our server locks up to a state of which the monitor, mouse, and keyboard do not operate, and ssh is no longer available. The only way to bring the system back to its normal state is by rebooting. Here are the logs generated before/during the lockup. Thanks.



Sep 10 04:41:27 <hostname> rc.sysinit: -e
Sep 10 04:41:29 <hostname> start_udev: Starting udev: succeeded
Sep 10 04:41:35 <hostname> rc.sysinit: -e
Sep 10 04:41:40 <hostname> sysctl: net.ipv4.ip_forward = 0
Sep 10 04:41:40 <hostname> sysctl: net.ipv4.conf.default.rp_filter = 1
Sep 10 04:41:40 <hostname> sysctl: net.ipv4.conf.default.accept_source_route = 0
Sep 10 04:41:40 <hostname> sysctl: kernel.sysrq = 0
Sep 10 04:41:40 <hostname> sysctl: kernel.core_uses_pid = 1
Sep 10 04:41:40 <hostname> rc.sysinit: Configuring kernel parameters: succeeded

[Rubberman]

This is the log from startup. Not shutdown, which since the system "hangs" you wouldn't get anyway. How are you powering down? If you just hit the power button once on most servers, it will send a "PWR" interrupt to the system, which if it is evey semi-functional should cause it to do a clean shutdown, though runaway processes may cause that to take awhile (anywhere from seconds to minutes). Holding down the power button or physically shutting down the system is not adisable as it will likely need to recover your file systems before it comes back online after rebooting.

Also, which version of Red Hat are you running? What applications/servers are running on the system?