As the title suggests, I have been seeing a lot of "unraid shfs/user: shfs_fallocate: fallocate: (95) Operation not supported" in my syslog of late. I saw https://lime-technology.com/forum/index.php?topic=40793.0, so I can answer the original question - it doesn't seem like anything odd is going on. The dashboard is reporting no errors with any of my drives.
Specs on my setup:
Motherboard: MSI - H81I
CPU: i5-4440S
Memory: 16GB DDR3
Cache drive: 256gb SSD (btrfs)
Parity drive: HGST 3TB 7200 rpm (reiserfs)
Data: 2x 3TB WD RED (reiserfs)
Installed plugins include:
OpenVPN Client
Community Applcations
Dockers:
gfjardmin's Transmission
VM:
Ubuntu 15.04 - all 4 cores, 2gb RAM to start, balloon to 6gb (I think), br0
Syslog attached - around 12 Sept 20:30 I started downloading a few torrents, so I am thinking there is a correlation, but I don't know enough to connect the dots past that. I ran the syslog at 20:47, so it looks like the errors have stopped/paused (or at least haven't occurred in five or so minutes). Thanks for the help!
unraid-syslog-20150912-2047.zip