Hi, Recently I was playing with xfsprogs, and did some test on xfs_check tools in this mothod: 1.make a xfs fs on one partition. mkfs.xfs -f /dev/sda2 2.randomly modify some blocks on this volume using xfs_db. xfs_db -x -c blockget -c "blocktrash -3 -s 36 -n 81" /dev/sda2 3.run xfs_check -s xfs_check -s /dev/sda2 the output saying: [root@test1 ~]# xfs_check -s /dev/sda2 bad version number 0x78 for inode 135 bad magic number 0xa855 for inode 154 bad magic number 0x5024 for inode 165 /usr/local/bin/xfs_check: line 28: 769 Segmentation fault xfs_db $DBOPTS -F -i -p xfs_check -c "blockget$OPTS" $1 if I run xfs_check without -s option, don't have this fault. Is this a known problem? I tried the latest code ,also have this problem. thanks, Xiaowei _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs