----- Original Message ---- > From: Peter Doherty <doherty at crystal.harvard.edu> > To: centos at centos.org > Sent: Wednesday, January 14, 2009 9:49:40 PM > Subject: [CentOS] stack overflow > > Hi, > > I've got a fileserver that runs Centos 5.2. It's been stable > otherwise stable for maybe a year or more, and now it's crashed three > times since Saturday. The first two times the computer was completely > unresponsive, and there was nothing on the console, and nothing in the > logs. I was beginning to suspect hardware, (esp. RAM, PSU, or maybe a > failed fan) > Last night it locked up again, but this time there was something in / > var/log/messages. (see below) > So far my searches indicate that increasing to 8K kernel stacks would > fix this. The server has a couple 3ware SATA RAID cards, and I'm > running xfs. The server does nightly disk to disk backups of a few > dozen workstations. The server does always seem to crash overnight. > If the problem really is in the kernel stack size, it's odd that it > just started all of a sudden. > I thought I'd post here before I looked into compiling a new kernel > with 8K stacks. Thanks for any advice! Did you check in your server hardware logs (if it has some; like IPMI?)? JD