Red Hat Bugzilla – Bug 367781
kernel paging request at virtual address hangs system
Last modified: 2007-11-26 11:34:03 EST
Description of problem:system hangs with:
kernel: Unable to handle kernel paging request at virtual address 009a7b5c
Version-Release number of selected component (if applicable):
Linux sova.uwyo.edu 2.6.9-55.0.2.EL #1 Tue Jun 12 17:47:10 EDT 2007 i686 athlon
Steps to Reproduce:Appears under heavy load, intermittently
Created attachment 248721 [details]
/var/log/messages at 2 hangs
Hi Jim, could you generate a sysreport from your system and attach it to this BZ?
Also, have you tried a newer version of RHEL4?
Created attachment 250611 [details]
Sysreport on system
This is the sysreport on the system having the kernel paging request fault.
The system has had various socketed hardware reseated. No faults for last 24
hrs. Previously faults would occurr 2 per day under heavy load. Heavy load is
a compute and memory (1.5-2.5 GB) intensive application ITT IDL.
Jim, it seems like reseating changed the system behavior. Could you give us a
status report in a few days to let us know if you are still seeing this panic?
Until then I am going to place this BZ in "NEEDINFO".
The problem has not cropped up again. The bug can be closed. Replacing a
memory SIMM appears to have fixed the problem. No memory errors were generated
with the "bad" SIMM.