Date: Sat, 18 Aug 2007 10:28:13 +0200 From: Peter Schuller <peter.schuller@infidyne.com> To: current@freebsd.org Subject: ZFS: Listable but un-stat():able snapshot Message-ID: <200708181028.13882.peter.schuller@infidyne.com>
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Hello, first off, this is on a machine running CURRENT from ~ 2007-05-08, so perhaps this is no longer an issue. But I don't remember reading about it anywhere. zfs list contains among other things (full path obscured, but otherwise exactly as-is): XXX@rsync 0 - 146G - XXX@200708181011 0 - 146G - XXX@rsync2 126K - 146G - I took the first two snapshots rapidly in succession after each other - I believe without any I/O to the fs in between. After I could not "cd" into the rsync snapshot, I took another one (rsync2) for testing. ls XXX/.zfs/snapshot: 200708122313 200708180037 200708181011 rsync rsync2 ls -l XXX/.zfs/snapshot (username obscured): ls: rsync: No such file or directory drwx------ 12 YYY YYY 43 Aug 12 22:31 200708122313 drwx------ 12 YYY YYY 43 Aug 18 00:30 200708180037 drwx------ 12 YYY YYY 43 Aug 18 09:30 200708181011 drwx------ 12 YYY YYY 43 Aug 18 09:30 rsync2 cd XXX/.zfs/snapshot/rsync: cd: no such file or directory: XXX/.zfs/snapshot/rsync Excerpt of kdump after ktrace ls -l: 55508 ls CALL getdirentries(0x5,0x28214000,0x1000,0x28213054) 55508 ls RET getdirentries 128/0x80 55508 ls CALL lstat(0x28216168,0x28216108) 55508 ls NAMI "200708181011" 55508 ls RET lstat 0 55508 ls CALL lstat(0x28216228,0x282161c8) 55508 ls NAMI "200708180037" 55508 ls RET lstat 0 55508 ls CALL lstat(0x282162e8,0x28216288) 55508 ls NAMI "200708122313" 55508 ls RET lstat 0 55508 ls CALL lstat(0x28211268,0x28211208) 55508 ls NAMI "rsync2" 55508 ls RET lstat 0 55508 ls CALL lstat(0x28211318,0x282112b8) 55508 ls NAMI "rsync" 55508 ls RET lstat -1 errno 2 No such file or directory I still have the snapshot on the machine and such if anybody wants me to run some diagnostic commands. -- / Peter Schuller PGP userID: 0xE9758B7D or 'Peter Schuller <peter.schuller@infidyne.com>' Key retrieval: Send an E-Mail to getpgpkey@scode.org E-Mail: peter.schuller@infidyne.com Web: http://www.scode.org
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