Comment 118 for bug 355155

The last few comments (particularly Marc Domachowski's and dannyboy1121's) suggest that the issue may not be with "clocksource tsc unstable" after all (at least, not all by itself). I was going to suggest that the issue may have something to do with Ubuntu's non-vanilla kernels and their interaction with the clocksource issue, but YS1's most recent comment says that the problem occurs in Debian (I myself have used Debian and never experienced it, but the seeming randomness of the system freezes may explain that). In any case, like Marc and dannyboy, I've never experienced the problem in non-Debian distributions (my experiences have been with ArchLinux). I wonder if perhaps this is a Debian-related issue? (At this point, I'm basically at a loss, given that nothing is indicated in the logs, and the freezes happen seemingly randomly...)

@YS1: Out of curiosity, what kernel were you using with Debian when the freeze occurred?

I've experienced the errors on Ubuntu's 2.6.28-11-generic, and one of the Ubuntu mainline 2.6.29 kernels (I unfortunately can't remember which). Strangely enough, I am currently running Xubuntu 9.04 with 2.6.28-11-generic without any problems (yet). I'm also running Ubuntu 9.04 with mainline kernel 2.6.29-020629-generic (this is a different 2.6.29 kernel from the one that I can't remember) and haven't experienced any problems in at least 5 days. Very odd.