I've had the same behaviour while playing audio... a few seconds of audio playing over and over again, and no other response from the system (except possibly ping...didn't check that when it happened.)
If it's related to disk I/O... I boot from a RAID-1 EXT4 root file system, assembled from 2 x 1TB SATA II drives. The only other FS is an EXT4 filesystem on a 1.5TB SATA II drive used for MythTV recordings.
I've had the same behaviour while playing audio... a few seconds of audio playing over and over again, and no other response from the system (except possibly ping...didn't check that when it happened.)
If it's related to disk I/O... I boot from a RAID-1 EXT4 root file system, assembled from 2 x 1TB SATA II drives. The only other FS is an EXT4 filesystem on a 1.5TB SATA II drive used for MythTV recordings.