[Unionfs] Problem with UnionFS 2.1.7

[Yuri Kirsanov]

Good day. I have compiled UnionFS for kernel 2.6.20.21. I have used UnionFS 1.1.5 with kernel 2.6.13.5 before, and everything was fine. But now I have plenty of errors in my logs and some directories just stop responding. Finally, I just can't enter catalog /var/tmp, where file zabbix_agentd.log is situated, and I can't kill zabbix_agentd process because it's unable to close file handle.

Oct 27 01:04:16 vpn5 kernel: unionfs: create_parents failed for bindex = 1
Oct 27 01:05:00 vpn5 kernel: unionfs: new lower inode mtime (bindex=0, name=data)
Oct 27 01:13:02 vpn5 kernel: unionfs: new lower inode mtime (bindex=0, name=zabbix_agentd.log)
Oct 27 01:37:57 vpn5 kernel: unionfs: lower dentry NULL (or error) for bindex = 1
Oct 27 01:41:18 vpn5 kernel: unionfs: lower dentry NULL (or error) for bindex = 1
Oct 27 01:41:32 vpn5 kernel: unionfs: new lower inode mtime (bindex=0, name=rc.d)
Oct 27 01:45:42 vpn5 kernel: unionfs: new lower inode mtime (bindex=0, name=root)
Oct 27 07:06:15 vpn5 kernel: unionfs: new lower inode mtime (bindex=0, name=zabbix_agentd.log)
Oct 27 07:35:27 vpn5 kernel: unionfs: new lower inode mtime (bindex=0, name=zabbix_agentd.log)
Oct 27 09:22:15 vpn5 kernel: unionfs: new lower inode mtime (bindex=0, name=zabbix_agentd.log)
Oct 27 13:38:09 vpn5 kernel: unionfs: new lower inode mtime (bindex=0, name=zabbix_agentd.log)
Oct 27 17:24:00 vpn5 kernel: unionfs: new lower inode mtime (bindex=0, name=data)
Oct 27 18:07:41 vpn5 kernel: unionfs: new lower inode mtime (bindex=0, name=run)

modinfo unionfs

filename:       /lib/modules/2.6.20.21-30flh/kernel/fs/unionfs/unionfs.ko
license:        GPL
description:    Unionfs 2.1.7 (for 2.6.20.21) (http://unionfs.filesystems.org)
author:         Erez Zadok, Filesystems and Storage Lab, Stony Brook University (http://www.fsl.cs.sunysb.edu)
depends:
vermagic:       2.6.20.21-30flh SMP mod_unload CORE2
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