clocksource tsc unstable
- by amorfis
Ok, now I have real server fault ;)
After some time from booting (about one minute) my server hangs. All I can do is hard reset. Then after restart in /var/log/kern.log I can find:
Jul 29 22:38:57 leonidas kernel: [ 90.729598] longhaul: Failed to set requested frequency!
Jul 29 22:38:57 leonidas kernel: [ 90.731252] longhaul: Enabling "Ignore Revision ID" option.
Jul 29 22:38:57 leonidas kernel: [ 91.201461] longhaul: Failed to set requested frequency!
Jul 29 22:38:57 leonidas kernel: [ 91.201482] longhaul: Disabling ACPI C3 support.
Jul 29 22:38:57 leonidas kernel: [ 91.204230] longhaul: Disabling "Ignore Revision ID" option.
Jul 29 22:38:58 leonidas kernel: [ 91.416133] longhaul: Failed to set requested frequency!
Jul 29 22:38:58 leonidas kernel: [ 91.416152] longhaul: Enabling "Ignore Revision ID" option.
Jul 29 22:38:58 leonidas kernel: [ 91.960048] Clocksource tsc unstable (delta = -105611479 ns)
I found some resources on the net, and it said to change clocksource, or disable ACPI. I tried disabling ACPI but it didn't help (but I noticed there was longer time before hanging). I can't change clock to hpet, because my system doesn't have such one.
Output of cat /sys/devices/system/clocksource/clocksource0/available_clocksource:
acpi_pm jiffies tsc
My system is ubuntu server on VIA Epia hardware.