Coming Underground

Category: General

Don't emulate HPET with KVM

Permalink 2010-07-02 20:42, by jaervosz, Categories: General, Gentoo Tips, Gentoo, Universe/English, Opensource , Tags: gentoo, ksm, kvm, server, time
For quite some time I've experienced quite high CPU load on my KVM server with an AMD Athlon X2 BE-2400 CPU. All KVM instances used 10-15% CPU time more or less constantly. Idle load was around the 1.5-3 range (reaching over 160 with dynticks).I've t… more »
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OpenWRT 10.03 Backfire

Permalink 2010-06-10 11:38, by jaervosz, Categories: General, Gentoo, Universe/English, Opensource , Tags: openwrt
Today I upgraded my three old Linksys WRT54G 2.2 WIFI APs to the latest OpenWRT release 10.03 codenamed Backfire, previously I was running Kamikaze 8.09. The upgrades went almost perfectly smooth (the 2.6 kernel using the b43 driver apparently still doen… more »
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Decent image viewer for Windows

Permalink 2010-05-17 21:56, by jaervosz, Categories: General, Universe/English
I'm using Digikam for image management on Linux, using the five-star system to rate my images. In order to make it easier to move my images between different Linux computers I force Digikam to write tags and ratings to the file's EXIF part. It writes… more »
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Puppet with Ruby 1.8.7 hang with pthreads

Permalink 2010-04-14 17:37, by jaervosz, Categories: General, Gentoo Tips, Universe/English , Tags: bugs, puppet, ruby
Last week I used a lot of time trying to trace down my puppet clients dying at some point. I could run Puppet ten times without any problems, but suddenly it would just hang without any error message.It turned out to by Ruby Bug #2739 and after apply… more »
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Strange Puppet nil:NilClass error message

Permalink 2010-03-16 16:28, by jaervosz, Categories: General, Gentoo Tips, Universe/English , Tags: error message, puppet
Puppet is a very nice tool to do a lot of cool stuff, but sometimes it spews out error messages that seems a bit odd to the non Ruby hacker. Ie. if your puppetmaster is down you'll get the following with puppet-0.25.4-r1:err: Could not retrieve c… more »
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