- Debian GNU/Linux on ThinkPad T43
- Kernel panic with Pentium 4 and MSI 865PE Neo2-LS
- Optimising GNU/Linux with gcc options
- zsh on systems with crippled chsh
- 4-voice MIDI for mobile phones
- Stuff for Commodore 64
- Random junk
- Great music
- Games I have beaten
- Stuff for sale/free for taking
Pentium 4 & MSI 865PE Neo2-LS
Keywords: APIC, error, 60, 60(60)
The box was running just fine with Linux 2.4.x. Then, on day, when the hard drive received some damage and I had to replace it, I installed Linux 2.6 on it. That is when I started having the following warnings right after the partition table was read.
APIC error on CPU0: 60(60) APIC error on CPU0: 60(60) irq 185: nobody cared! [<c010876a>] __report_bad_irq+0x2a/0x90 [<c0108860>] note_interrupt+0x70/0xb0 [<c0108b70>] do_IRQ+0x160/0x1a0 [<c0106b70>] common_interrupt+0x18/0x20 [<c0104030>] default_idle+0x0/0x40 [<c029007b>] xfrm_get_type+0x2b/0x120 [<c010405c>] default_idle+0x2c/0x40 [<c01040eb>] cpu_idle+0x3b/0x50 [<c0364949>] start_kernel+0x1c9/0x220 [<c0364370>] unknown_bootoption+0x0/0x160 handlers: [<e0863ea0>] (ide_intr+0x0/0x1e0 [ide_core]) Disabling IRQ #185
Solution was to set On-Chip ATA(s) Operate Mode from Native Mode to Legacy Mode. (BIOS: Integrated Peripherals -> On-Chip IDE Configuration -> On-Chip ATA(s) Operate Mode). Problem solved.
Optimising GNU/Linux with gcc options
There has been lot of discussion about compiling GNU/Linux from scratch, and performance boost related to it. I have never been a big believer of this -- except for applications such as multimedia encoding.
Willing to use zsh but can't change your default shell or zsh is not globally installed? The obvious answer is to execute zsh in your login-shell start-up script.
test -e /path/to/zsh && exec /path/to/zsh
The previous seems to work just fine, but just wait and see what happens if you try to do tar -cf - foo bar | ssh host 'tar -xf -' or simple scp to computer where zsh is installed. It won't do a thing.
Not so obvious workaround is to modify your rc-files a bit:
.bashrc. Just add the following to the end of the file.
# scp will break if we start another shell here test -x /path/to/zsh -a ! "$SSH_CONNECTION" && exec /path/to/zsh
.profile or .bash_profile. Add the following
(leave out the .bashrc part if you already have it) to the end.
# zsh may have been started in .bashrc but in case it wasn't (SSH), do it here. # scp will never get this far so it's ok to launch zsh here test -x /path/to/zsh && exec /path/to/zsh
After purchasing SP-MIDI-capable mobile phone I started converting some tunes I liked into 4-voice MIDIs (as my phone only plays four voices at a time). Here are some of them.
- barbers_adagio.mid - Barber's Adagio for Strings - This tune actually has five tunes playing at a time, but as this doesn't bother me much, I have decided to release it.
- ff7_vincent.mid - Vincent's Theme (from Final Fantasy VII) - This is a trimmed-down version of file stolen from the game itself. Please make sure you have the game before downloading.
- ussr_nat_anthem.mid - USSR National Anthem. Don't ask why but I like it.
Moved to separate section.
- home.html - I don't use any portal or search engine as my browser homepage. Nor an empty page. Nor do I clutter my browser with collection of space-consuming toolbars. My sollution is to have a collection of, umm, stuff on my homepage. You'll see. :-) Designed for my personal use; some links are local, some are in Finnish. If you like the idea, go ahead and change it to something to fit your taste.
- As of January 2006 I recently switched from Galeon to Firefox. The choise wasn't easy, but great variety of fancy extensions finally made me decide over Firefox. As I was still missing some UI features Galeon had, I ended up writing an extension to provide some of that. galeon-buttons.xpi only provide a toolbar button that allows you to go hierarchially up in the directory structure. RMB-menu is somewhat broken, but I blame Firefox. It's "good enough" for me for time being. Live with it. :-)
- t/ - Random pictures, screenshots etc.
- msx/scan/ - Hand-written BASIC program for MSX-compatible home computers. Comes with full design document. All Rights Reserved!-)
Music greater than life
Sometimes I find a tune that seems better than anything else before. I keep listening to it for hours without an interruption, day after day. There has to be something special about those tracks. The tracks are (probably) mostly chip-tunes, but there are exceptions.