Tom - 2012-08-11

Been happening consistently for last several weeks, was working for months prior ok. 

Using the Webmin Filesystem Backup module, my scheduled backups have been failing lately. Unsure of how to proceed.  The final error message is  The last few lines in the filesystem backup log are:

tar: /sys/devices/pci0000\:00/0000\:00\:0d.0/resource0: Read error at byte 0, while reading 9728 bytes: Input/output error
tar: /sys/devices/pci0000\:00/0000\:00\:0d.0/resource1: Read error at byte 0, while reading 5120 bytes: Input/output error
tar: /sys/devices/pci0000\:00/0000\:00\:0d.0/resource1_wc: Read error at byte 0, while reading 512 bytes: Input/output error
tar: write did not end on a block boundary
tar: /mediastorage2/systemdrivebackup: Wrote only 4095 of 10240 bytes
tar: Error is not recoverable: exiting now

Log can be found at http://pastebin.com/yiAc1WaR

Any help you can offer would be appreciated. I'm not really sure what to start with troubleshooting this.