[64studio-devel] couple of issues with 2.0 - very strange clock problem

Daniel James daniel at 64studio.com
Thu Aug 2 17:13:50 BST 2007


Hi Ben,

> 1)  trying to install qt4-dev-tools, I get some unmet dependencies:
>     libqt4-core (>=4.2.1) but 4.1.4-1.64studio1 is to be installed
>     libqt4-gui (>=4.2.1) but 4.1.4-1.64studio1 is to be installed

4.1.4-1.64studio1 is our backported Qt4 package, needed to make the last 
release of Ktoon run properly. Since then, they've released a new 
version of Ktoon which works with the version of Qt in Etch, but it came 
too late for our 2.0 release. Ktoon now works well enough to make 
animations and export them as SMIL plus a directory of PNG files.

> I also tried changing 
> the debian repository to testing and then experimental but the 
> dependencies got worse instead of better.

You need the Qt4 packages from Etch:

http://packages.debian.org/stable/libs/libqt4-core

Try enabling a Debian Etch mirror, do an apt-get update, then:

apt-get install libqt4-core=4.2.1
apt-get install libqt4-gui=4.2.1

Mixing your Etch-based 64 Studio system with Debian testing will cause 
dependency troubles, unless you upgrade the whole system to Debian 
testing - and at this stage in the Debian release cycle, testing is 
likely to be in flux.

> 2)  I have a very strange clock problem:
> 
>     If I boot with the network cable, the system boots up normally and 
> works great.  If, however, I boot without the network connected (this 
> took a while to figure out!), the system halts at the beginning of 
> init.  The last message is something like:
> 
> clocksource tsc unstable (delta = 9374123524 ns)

I bet that's a dual-processor AMD system...

http://www.uwsg.indiana.edu/hypermail/linux/kernel/0610.2/1516.html

See also:

http://kerneltrap.org/node/8306

If I do a:

# cat /sys/devices/system/clocksource/clocksource0/available_clocksource

on my dual Opteron system, the output is:

acpi_pm jiffies tsc

I'm going to reboot now with the network cable out, just to be sure 
there's not a general bug in 2.6.21-rt.

Cheers!

Daniel



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