I've just seen something that never seen before.
The system is Slackware 13.37 / AMD 64bit / KDE / 12GB RAM
It was running ok before, with more than month uptimes.
At that time the running programs was Firefox 13.0.1 (About 20 tabs), Amarok 2.4.0 (streaming radio), Terminal emulator (4 tabs, ssh, mc, mc root, just left open). One small pop in the speaker and the sound is gone, keyboard and mouse not responding. No blinking LED's. Didn't checked with network because my tablet is on different network, just clicked reset button.
First boot after that:
Kernel panic! Blinking LED's.
After one more reset everything is fine. No errors on disk, nothing.
Anyone saw something similar before? Any idea? Or it's just weird crash?