an unexpected 15 minutes

had xmms on pause overnight, clicked play/pause, then immediataly
skip-to-next-song, this caused the entire desktop to freeze. even warm
reboot didn't work. had to pull power. afterward booting took a long
time at grub stage 2. assume it was a currupted log/journal. after a
complete boot, the boot times returned to normal. had feared a bad disk.