On Fri, Jan 23, 2015 at 21:47, Steve Shockley wrote: > On 1/22/2015 9:13 AM, Reyk Floeter wrote: >> What release and what virtualized SCSI controller where you using? > > I found my old notes, it turns out it was on 4.6 and the crash message was: > > softdep_setup_freeblocks: got error 5 while accessing filesystem > dev = 0x404, block = 1315, fs = /var > panic: ffs_blkfree: freeing free frag > Stopped at Debugger+0x4: leave
error 5 is EIO, input/output error. softdep does not support disks that don't work, to put it bluntly. The original FFS code can cope with disk failure by backing out of the operation, but soft updates reorders things and can't undo what's already been done.