Indeed given it is on physical hardware I was going to suggest memtest as one diag stage. Most 'intermittent' kernel panics I've seen on a variety of systems when they have shown up in general have been temp, bad memory, bad disk or software with the last rarest of all and usually linked to a driver rather than an app.. James Sent from Android mobile <blockquote type="cite">On May 25, 2010 3:25 PM, "L A Hurst" <<a href="mailto:L.A.Hurst@lboro.ac.uk">L.A.Hurst@lboro.ac.uk</a>> wrote: On 25 May 2010, at 12:32, Jan Pazdziora wrote: > Hello Laurence, > Thanks both James and Jan for your replies. > have you got a photo of the panic screen uploaded something which we > could examine for more deta...Alas no, I did not have the forethought to take a photo (and was kind of assuming it would have managed to be logged since it appeared to be a soft-panic). > Was there something related to the OOM killer in the log?Nothing at all in the log, since a syslog checkpoint until the initial boot messages from resetting the box. > > Is this a single core or multi core system? > Single core, multi-processor. It has 2 physical single-core 2.8GHz Xeon processors, although they are both hyper-threaded so there's 4 logical cores in total. > Are you able to reproduce the situation?No, I've not managed to reproduce this - if I'd managed to do so I'd have bug-reported it (to whichever software-vendor appeared to be the culprit) rather than asking on this mailing list ;) Since I'm running Spacewalk and Oracle (and have SELinux enabled) on the same box there's quite a few things which could have caused it, assuming it is a software problem. I think I'll just have to chalk it up to "one of those things" at the moment and investigate more throughly (and take photos of the console!) _if_ it happens again. I was more curious if anyone else had experienced unexplained kernel panics using Oracle XE and/or Spacewalk in this configuration. Without reproducing the panic and/or useful logs I can't even rule out a hardware fault (which, in my experience, is more often than not the cause of any kind of kernel panic). Laurence _______________________________________________ Spacewalk-list mailing list Spacewalk-list@redhat....</blockquote>