I'm running virtualbox 4.3.34 on a FreeBSD 10.2-STABLE #1 r292065 host. My 3 guests are all FreeBSD with the exact same kernel. I keep getting this in the virtualbox logs: 422:48:23.470075 PIIX3 ATA: Ctl#0: RESET, DevSel=0 AIOIf=0 CmdIf0=0xca (30020391 usec ago) CmdIf1=0xa0 (-1 usec ago) 425:26:57.329048 PIIX3 ATA: execution time for ATA command 0xca was 9543 seconds 425:26:57.422452 PIIX3 ATA: Ctl#0: finished processing RESET 398:44:12.032405 PIIX3 ATA: Ctl#0: RESET, DevSel=0 AIOIf=0 CmdIf0=0xca (30033917 usec ago) CmdIf1=0xa0 (-1 usec ago) 398:44:12.079466 PIIX3 ATA: execution time for ATA command 0xca was 30 seconds 398:44:12.079489 PIIX3 ATA: Ctl#0: finished processing RESET The net result of this reset is the guest OSes report "out of inodes" even though a df -i clearly shows tons of them.
10.2 is EOL. We have vbox version 5.2.4. Maybe, this is overcome by events?