On Mon, Oct 16, 2006 at 03:32:38PM +0100, David Johnson wrote: ... > I've found the culprit - CPU Frequency Scaling. > With it enabled I get the reboots, with it disabled I don't. That's the same > with every kernel version I've tried (2.6.19-rc1+rc2, 2.6.17.13 & Centos' > 2.6.9) The system was using the p4-clockmod driver and the ondemand governor. > > I'm still not sure exactly what the problem is - the reboots only happen in > the circumstances I've mentioned and are not triggered by changes in clock > speed alone - but disabling cpufreq seems to make it go away...
I see you devoted a lot of work and time to this testing and for sure it will help people who read this to diagnose similar problems but I think it could be even more valuable if you'd try (after some rest!) to find if "Enable CPUfreq debugging" plus adding to kernel command line cpufreq.debug=<value> (according to help screen) would return any error messages that could be send to bugzilla and/or cpufreq maintainer. Best regards, Jarek P. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
