I'm running Debian Lenny stable on an AMD64 processor (Athlon X2) on an Asus M2A-VM motherboard. We use the machine as a server for our website. We had a lot of instability issues (every few days the kernel locked up in a hard panic which required a manual reset of the system) before the upgrade to Lenny. I already ran memtest86+ for 48 hours without any error so i guess the memory isn't corrupt.
Since I installed lenny, i'm getting a new error in the dmesg output:
[ 2494.398691] Clocksource tsc unstable (delta = 62507982 ns)
after it has run for about half an hour. It keeps running but it locks up again after a week or two, and a lot of kernel Oops'es (which can be seen in the kernel.log file). The clocksource message is reproducible every half an hour after boot, reason unknown. I have been looking up a lot of information and forums on this matter but i can't seem to find what's wrong. In the kernel.log file, when an Oops occurs, there is an error for one specific Perl script that renders a page on the website, something i haven't seen before in the logs.
What I have attempted so far:
- installed the latest BIOS version
- Linux version 2.6.26-1-amd64 (Debian 2.6.26-13) (firstname.lastname@example.org) (gcc version 4.1.3 20080704 (prerelease) (Debian 4.1.2-24)) #1 SMP Sat Jan 10 17:57:00 UTC 2009
hpet acpi_pm jiffies tsc
This is the same before AND after the clocksource message.
- i haven't tried enabling or disabling kernel boot options yet.
Can someone give me any help on this?