> > 1) Console logging. Your machine just crashed. No clue in > > /var/log/messages. "I wonder if it printed something on the console?" > > Answer: ipmi and conman (available in an rpm in Red Hat distros). > > I was "planning" on using kdump and a crash-kernel for that.
Which is complicated enough to set up that I've never tried. IPMI doesn't get you the same functionality as kdump: you can't do further debugging without the dump. But you do get the oops with ipmi/conman, which is about the same as getting the stacktrace when a program segfaults. Personally I'm not really going to debug in the kernel more than staring hard at the oops, and the oops is the preferred way of filing a bug against the kernel. > I see. Yes, you read me correctly: I was putting full faith in > lm_sensors to do this. lm_sensors isn't going to tell you about something that happened between scans. ipmi gives you access to the event log, which will show you all transient events. The two do look at the same bus and counters. lm_sensors works in systems which are missing ipmi. -- greg _______________________________________________ Beowulf mailing list, [email protected] sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
