Random hangs on PPC G5

[Sergey V. Udaltsov]

Breeze/PPC hangs randomly (approximately once a day). The clock on the screen
stops ticking, the keyboard does not respond (no indicators switching, no way to
switch from X to virtual console). After reboot, no bad(oops) messages in syslog.
All latest updates are in place.

[Dennis Kaarsemaker (dennis)]

Can you please attach the last lines from relevant logfiles and maybe give
dapper flight 2 a test.

[Sergey V. Udaltsov (svu)]

I sure can give you lines from the log files, next time it happens. Which log
files do you mean? The /var/log/dmesg is overwritten on reboot IIRC, I can give
you lines from /var/log/messages. Is this enoughs?

About the Dapper Flight - I am a bit afraid of using very unstable distro
(especially kernel). Is the risk very high at this point?

[Ben Collins (ben-collins)]

(In reply to comment #2)
> I sure can give you lines from the log files, next time it happens. Which log
> files do you mean? The /var/log/dmesg is overwritten on reboot IIRC, I can give
> you lines from /var/log/messages. Is this enoughs?

/var/log/kern.log

> About the Dapper Flight - I am a bit afraid of using very unstable distro
> (especially kernel). Is the risk very high at this point?

I've been running dapper on my G4, G5 and now my new PowerBook. The kernel is
very stable.

[Sergey V. Udaltsov (svu)]

Ok, today around 1.35 AM I got my machine hanging... Nothing useful in the log
files.

In kern.log:
Jan 3 00:59:44 localhost kernel: [19320.128106] TCP: Treason uncloaked! Peer
67.82.97.28:3538/4662 shrinks window 2096035124:2096035393. Repaired.
Jan 3 00:59:48 localhost kernel: [19324.120106] TCP: Treason uncloaked! Peer
67.82.97.28:3538/4662 shrinks window 2096035124:2096035393. Repaired.
Jan 4 01:36:00 localhost kernel: Inspecting
/boot/System.map-2.6.12-10-powerpc64-smp
Jan 4 01:36:00 localhost kernel: Loaded 35734 symbols from
/boot/System.map-2.6.12-10-powerpc64-smp.
Jan 4 01:36:00 localhost kernel: Symbols match kernel version 2.6.12.

In the messages:
Jan 4 00:23:16 localhost -- MARK --
Jan 4 00:43:16 localhost -- MARK --
Jan 4 01:03:16 localhost -- MARK --
Jan 4 01:23:17 localhost -- MARK --
Jan 4 01:36:00 localhost syslogd 1.4.1#17ubuntu3: restart.

Any way I could increate debugging without hitting the performance too much?

[Niels Kristian Bech Jensen (nkbjensen)]

Can you reproduce these hangs using Dapper?

[Sergey V. Udaltsov (svu)]

I think it can be closed now

[Brian Murray (brian-murray)]

This bug report is being closed due to your last comment regarding this being fixed with an update. For future reference you can manage the status of your own bugs by clicking on the current status in the yellow line and then choosing a new status in the drop down box. You can learn more about bug statuses at http://wiki.ubuntu.com/Bugs/Status . Thank you again for taking the time to report this bug and helping to make Ubuntu better. Feel free to submit any future bugs you may find.