Just so we don't get too many unrelated freezes being tracked in this thread... the symptoms characterized by florianr were: - issue was NOT present prior to 10.04 - intermittent system-wide freezes - frozen image on screen, showing the desktop image without any change and not taking mouse/keyboard actions - sometimes MagicSysRQ (R-E-I-S-U-B) works, sometimes not. - system log is still active for some time after the freeze appears to happen - system logs do not contain any obvious/consistent message that identify the cause of the freeze - issue is STILL present testing with upstream kernels (except that you may be able to continue moving the mouse or a period of time) - not a memory issue - system stays connected via wireless (if using wireless) - issue appears on very different hardware (intel CPU and. AMD,; intel video and nVidia), - not related to a specific desktop (gnome and kde) or a specific application (e.g. virtualbox, firefox, etc.)
>From my own observations: - a freeze can be provoked by running processes with high CPU (and possibly disk I/O) such as with handbrake - I've been able to prompt freezes with no desktop or X server running.... although I don't know if florianr can confirm this on his system. As such, I doubt the problem can be compiz or xorg related (although, note that it may be processor load related, as as such something like compositing could make a system more likely to freeze) - I can eliminate freezes by booting with kernel parameters "noapic nolapic acpi=off" florianr, so we can see whether we're still dealing with the same bug or not, could you please verify: - your system still responds to pings when "frozen" (and you can't ssh in) - your system doesn't freeze if you boot with kernel parameters "noapic nolapic acpi=off" Others, if your symptoms are different from those above, you may want to start a new bug report. -- Ubuntu 10.04 random freezes https://bugs.launchpad.net/bugs/585765 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
