Hello Recently we have a problem on xfs. The environment is: CentOS Linux release 7.4.1708 (Core) Linux xefs-51 3.10.0-693.el7.x86_64 #1 SMP Tue Aug 22 21:09:27 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux [root@xefs-51 ~]# modinfo xfs filename: /lib/modules/3.10.0-693.el7.x86_64/kernel/fs/xfs/xfs.ko.xz license: GPL description: SGI XFS with ACLs, security attributes, no debug enabled author: Silicon Graphics, Inc. alias: fs-xfs rhelversion: 7.4 srcversion: 6CAAE7A01207B73522C8412 depends: libcrc32c intree: Y vermagic: 3.10.0-693.el7.x86_64 SMP mod_unload modversions signer: CentOS Linux kernel signing key sig_key: DA:18:7D:CA:7D:BE:53:AB:05:BD:13:BD:0C:4E:21:F4:22:B6:A4:9C sig_hashalgo: sha256 We mount /dev/sdc2 on /mnt after machine boot [root@xefs-51 ~]# df -iT /mnt/ 文件系统 类型 Inode 已用(I) 可用(I) 已用(I)% 挂载点 /dev/sdc2 xfs 107374144 6 107374138 1% /mnt [root@xefs-51 ~]# ls /mnt jjj kkk xfs.strace And we add files to /mnt at first, [root@xefs-51 ~]# cp /mnt/jjj /mnt/123 [root@xefs-51 ~]# df -iT /mnt 文件系统 类型 Inode 已用(I) 可用(I) 已用(I)% 挂载点 /dev/sdc2 xfs 107374144 7 107374137 1% /mnt [root@xefs-51 ~]# cp /mnt/jjj /mnt/111 [root@xefs-51 ~]# df -iT /mnt 文件系统 类型 Inode 已用(I) 可用(I) 已用(I)% 挂载点 /dev/sdc2 xfs 107374144 8 107374136 1% /mnt [root@xefs-51 ~]# cp /mnt/jjj /mnt/222 [root@xefs-51 ~]# df -iT /mnt 文件系统 类型 Inode 已用(I) 可用(I) 已用(I)% 挂载点 /dev/sdc2 xfs 107374144 9 107374135 1% /mnt [root@xefs-51 ~]# cp /mnt/jjj /mnt/333 [root@xefs-51 ~]# df -iT /mnt 文件系统 类型 Inode 已用(I) 可用(I) 已用(I)% 挂载点 /dev/sdc2 xfs 107374144 10 107374134 1% /mnt and then remove some, but the inodes used in 'df -iT /mnt' not changed [root@xefs-51 ~]# rm -f /mnt/jjj [root@xefs-51 ~]# df -iT /mnt 文件系统 类型 Inode 用(I) 可用(I) 已用(I)% 挂载点 /dev/sdc2 xfs 107374144 10 107374134 1% /mnt [root@xefs-51 ~]# rm -f /mnt/kkk [root@xefs-51 ~]# df -iT /mnt 文件系统 类型 Inode 已用(I) 可用(I) 已用(I)% 挂载点 /dev/sdc2 xfs 107374144 10 107374134 1% /mnt and if we umount /mnt at this time, the machine will reboot, and no related log in /var/log/messages after boot and the inodes used become normal. As googled a lot, we tried some ways: 1) lsof /mnt: shows nobody use this mount point. 2) lsof |grep deleted: shows empty What should i do to find the problem out? -- Thank you!
