Re, well as mentioned fstat didn't show any open filehandles or inodes, but fsck was a bit more chatty :
# fsck /dev/sd0a ** /dev/rsd0a (NO WRITE) ** Last Mounted on /flash ** Phase 1 - Check Blocks and Sizes ** Phase 2 - Check Pathnames ** Phase 3 - Check Connectivity ** Phase 4 - Check Reference Counts UNREF FILE I=9 OWNER=root MODE=100644 SIZE=1317309440 MTIME=Sep 27 13:48 2016 CLEAR? no ** Phase 5 - Check Cyl groups 15 files, 892592 used, 993071 free (31 frags, 124130 blocks, 0.0% fragmentation) # a simple umount and mount of the partition did fix it and released the discspace. Because it happened the second time, I'm going to try to reproduce the issue. But until then cheers, Marco Am 27.09.2016 um 08:29 schrieb Raul Miller: > Do any processes have those files open? Did you have any hard links to > those files from other names? > > The disk space cannot be removed until all references to those files > are removed.