[mythtv-users] ERROR: file I/O problem in 'safe_read()': Invalid argument

[Jason Elwell]

I am getting intermittent problems when Rew/FF Live TV.
After rewinding the video/audio will play fine for a couple minutes, 
then the the video and audio will shudder for a few seconds and then the 
frontend will stop responding.
In the mythbackend log i find a long series of:
ERROR: file I/O problem in 'safe_read()': Invalid argument
ERROR: file I/O problem in 'safe_read()': Invalid argument
ERROR: file I/O problem in 'safe_read()': Invalid argument
ERROR: file I/O problem in 'safe_read()': Bad address
ERROR: file I/O problem in 'safe_read()': Bad address
ERROR: file I/O problem in 'safe_read()': Bad address

Any ideas what this may be?  I am running Myth 0.15.1 with (1) PVR-250 
and a Radeon 9000 for TV out. HDD is an IDE with a EXT3 filesystem.