Here is a possible bug regarding the fuse filesystem. The best I can determine this occurred during an rsync request from the x86_64 box to a laptop to retrieve files under /home/david. The box hardlocked. The error messages just before the restart were:
Jul 26 02:48:19 archangel kernel: fuse init (API version 7.13) Jul 26 02:48:19 archangel kernel: end_request: I/O error, dev fd0, sector 0 Jul 26 02:48:19 archangel kernel: end_request: I/O error, dev fd0, sector 0
What stands out to me is 'fd0'. Why in the world would there be an I/O error to the floppy associated with a rsync request that had nothing to do with the floppy? The floppy on that box probably hasn't been used in over a year since the last bios upgrade and there is no floppy in the drive.
This occurred with the following packages installed:
kernel26 126.96.36.199-1 fuse 2.8.4-2
Has anybody seen anything similar? What is a good way to troubleshoot other than repeatedly doing rsync transfers and hoping to catch something?