Ubuntu
linux package

  1. Bug #355155
  2. Comment #233

Comment 233 for bug 355155

Revision history for this message
Sylvain "Greewi" Dumazet (greewi-feerie) wrote : Re: Clocksource tsc unstable leads to lockups in Ubuntu Jaunty

Aven if I have a different system as described by the other users (I am on netbook with a lpia system), I have similar symptomes :
- Freeze with Alt-Sys-K not working
- Able to reboot with Alt-Sys-REISUB
- Able to login whit ssh.
- No information in the logs

When logged in with SSH I can see that the CPU is almost idle and the memory has a normal usage. Also it seem that a X server is still running (not killed) as indicated by `ps`: "root 3701 0.1 1.8 28652 18436 tty7 Ss+ Jun29 1:43 /usr/X11R6/bin/X :0 -br -audit 0 -auth /var/lib/gdm/:0.Xauth -nolisten tcp vt7"

Killing this server does nothing : GDM open an other one on and other vt. But the log look very small. If I try to launch vlc without interface, it fail to open /dev/dsp, and after if I try to launch alsamixer, I get this error :"alsamixer: function snd_ctl_open failed for default: No such file or directory" (It work before launching vlc).

The `sudo reboot` command return but doesn't display anything and the system does'nt restart. After that a `ps` command just freeze and a this point I can't do anything : the systeme is totally stalled and I need to use the Alt-Sys-REISUB sequence on the freezed PC.

On ubuntu-8.04 (lpia) it was not freezeing at all.