Hi, Thank you for the detail report! It's really helpful.
I understood the zero link count inode was causing a chain reaction. And the inode in question at cp15731 also seems to be overridden because gid, size, and timestamp all differs from that file at cp15730. > cp15730 > ------- > mnt/snap5/cut: > total 4 > 14 -rw-r--r-- 1 philippe 1000 47 25 janv. 22:33 f5_20110125_202053.ts(0).Xcl > cp15731 > ------- > mnt/snap7/cut: > total 9223372036848683032 > 14 -rw-r--r-- 0 philippe users 6214528000 24 janv. 01:30 > f5_20110125_202053.ts(0).Xcl Can't you find another file with the inode number 14 in the snapshot cp15731 or cp15730 ? I reviewed back unlink() implementation, but haven't found any issues so far. The problem may be rooted much deeper. 'stat' command may give us much information than 'ls -l' in this case. Thanks, Ryusuke Konishi On Mon, 7 Feb 2011 20:42:32 +0100, Philippe CHATAIGNON wrote: > Le Mon, 07 Feb 2011 13:02:14 +0900 (JST), > Ryusuke Konishi <[email protected]> a écrit : > > > Can you track the past state of this file from earlier checkpoints ? > Just before recording : > philippe@micro11:~$ sudo mount -t nilfs2 -r -o cp=16940 > /dev/mapper/vg11a-video mnt/snap5 > philippe@micro11:~$ ls -li mnt/snap5/** > 18 -rw-r--r-- 1 philippe users 4434 9 janv. 15:45 mnt/snap5/channels.conf > > mnt/snap5/capture: > total 19452056 > 16 -rw-r--r-- 1 philippe users 8606489600 9 janv. 15:42 f3_20110107_205154.ts > 15 -rw-r--r-- 1 philippe users 4688870400 19 janv. 23:14 f4_20110119_204007.ts > 17 -rw-r--r-- 1 philippe users 6545408000 9 janv. 15:45 > tf1hd_20101219_203305_schrek2.ts > > mnt/snap5/cut: > total 4 > 19 -rw-r--r-- 1 philippe 1000 156 29 janv. 21:16 > canal_20110129_181951.ts(0).Xcl > 14 -rw-r--r-- 0 philippe users 4838067200 30 janv. 00:58 > f5_20110125_202053.ts(0).Xcl > > Start of recording : > philippe@micro11:~$ sudo mount -t nilfs2 -r -o cp=16941 > /dev/mapper/vg11a-video mnt/snap6 > philippe@micro11:~$ ls -li mnt/snap6/** > > 18 -rw-r--r-- 1 philippe users 4434 9 janv. 15:45 mnt/snap6/channels.conf > > mnt/snap6/capture: > total 19454420 > 14 -rw-r--r-- 1 philippe users 2406400 30 janv. 17:45 f2_20110130_174456.ts > 16 -rw-r--r-- 1 philippe users 8606489600 9 janv. 15:42 f3_20110107_205154.ts > 15 -rw-r--r-- 1 philippe users 4688870400 19 janv. 23:14 f4_20110119_204007.ts > 17 -rw-r--r-- 1 philippe users 6545408000 9 janv. 15:45 > tf1hd_20101219_203305_schrek2.ts > > mnt/snap6/cut: > total 2368 > 19 -rw-r--r-- 1 philippe 1000 156 29 janv. 21:16 > canal_20110129_181951.ts(0).Xcl > 14 -rw-r--r-- 1 philippe users 2406400 30 janv. 17:45 > f5_20110125_202053.ts(0).Xcl > > That's the problem : inode 14 is reused because there was a file with 0 link > (f5_20110125_202053.ts(0).Xcl) > in another directory. So I tracked earlier and found that : > > cp15730 > ------- > philippe@micro11:~$ ls -li mnt/snap5/** > 18 -rw-r--r-- 1 philippe users 4434 9 janv. 15:45 mnt/snap5/channels.conf > > mnt/snap5/capture: > total 19452056 > 16 -rw-r--r-- 1 philippe users 8606489600 9 janv. 15:42 f3_20110107_205154.ts > 15 -rw-r--r-- 1 philippe users 4688870400 19 janv. 23:14 f4_20110119_204007.ts > 17 -rw-r--r-- 1 philippe users 6545408000 9 janv. 15:45 > tf1hd_20101219_203305_schrek2.ts > > mnt/snap5/cut: > total 4 > 14 -rw-r--r-- 1 philippe 1000 47 25 janv. 22:33 f5_20110125_202053.ts(0).Xcl > > All is OK > > cp15731 > ------- > philippe@micro11:~$ ls -li mnt/snap7/** > 18 -rw-r--r-- 1 philippe users 4434 9 janv. 15:45 mnt/snap7/channels.conf > > mnt/snap7/capture: > total 19452056 > 16 -rw-r--r-- 1 philippe users 8606489600 9 janv. 15:42 f3_20110107_205154.ts > 15 -rw-r--r-- 1 philippe users 4688870400 19 janv. 23:14 f4_20110119_204007.ts > 17 -rw-r--r-- 1 philippe users 6545408000 9 janv. 15:45 > tf1hd_20101219_203305_schrek2.ts > > mnt/snap7/cut: > total 9223372036848683032 > 14 -rw-r--r-- 0 philippe users 6214528000 24 janv. 01:30 > f5_20110125_202053.ts(0).Xcl > > Size of file f5_20110125_202053.ts(0).Xcl is incorrect and it appears with 0 > link. > > > cp15732 > ------- > philippe@micro11:~$ ls -li mnt/snap2/** > 18 -rw-r--r-- 1 philippe users 4434 9 janv. 15:45 mnt/snap2/channels.conf > > mnt/snap2/capture: > total 19452056 > 14 -rw-r--r-- 1 philippe users 0 29 janv. 18:19 > canal_20110129_181951.ts > 16 -rw-r--r-- 1 philippe users 8606489600 9 janv. 15:42 f3_20110107_205154.ts > 15 -rw-r--r-- 1 philippe users 4688870400 19 janv. 23:14 f4_20110119_204007.ts > 17 -rw-r--r-- 1 philippe users 6545408000 9 janv. 15:45 > tf1hd_20101219_203305_schrek2.ts > > mnt/snap2/cut: > total 0 > 14 -rw-r--r-- 1 philippe users 0 29 janv. 18:19 f5_20110125_202053.ts(0).Xcl > > > Inode 14 is used by 2 files. When I deleted the file > canal_20110129_181951.ts, we have > the situation of the cp 16940 (the first of this mail) and a file with 0 link. > > Problem is in cp15731, just before the creation of file > canal_20110129_181951.ts. > > PhC -- To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
