Re: Bug : reuse same inode

[Ryusuke Konishi <ryusuke@xxxxxxxx>]

Hi,
On Sun, 6 Feb 2011 20:09:28 +0100, Philippe CHATAIGNON wrote:
> Hi all,
> 
> I use nilfs2 on a lvm partition for recording dvb streams : it creates
> big files and I often deleted them quickly so there only a few files on the partition.
> 
> Today I notice a problem : where a new file were created, it takes the same inode that a file already have. 
> So the previous file were lost, like if an hard link was made.
> 
> philippe@micro11:~$ ls -li $v
> total 30051016
> 14 -rw-r--r-- 1 philippe users    93849600  6 févr. 14:51 f2_20110130_174456.ts
> 16 -rw-r--r-- 1 philippe users  8606489600  9 janv. 15:42 f3_20110107_205154.ts
> 14 -rw-r--r-- 1 philippe users    93849600  6 févr. 14:51 f3_20110206_144851.ts
> 19 -rw-r--r-- 1 philippe users 10623052800  6 févr. 19:55 f3_20110206_145141.ts
> 15 -rw-r--r-- 1 philippe users  4688870400 19 janv. 23:14 f4_20110119_204007.ts
> 
> The file created today is f3_20110206_144851.ts : it reuse inode 14
> that the file f2_20110130_174456.ts already had. On the third column, you can see there 
> is only one link (and not 2 as if ln was used).
> 
> Of course, I can use a snapshot to recover the old file (f2_20110130_174456.ts). 
> 
> philippe@micro11:~$ ls mnt/snap2/capture -li
> total 32584848
> 20 -rw-r--r-- 1 philippe users     4812800  5 févr. 17:43 canal_20110205_172318.ts
> 14 -rw-r--r-- 0 philippe users 13390412800 31 janv. 01:00 f2_20110130_174456.ts 

This directory list is already broken because the link count of
"f2_20110130_174456.ts" is zero.

Can you track the past state of this file from earlier checkpoints ?

Thanks,
Ryusuke Konishi

> 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
> 
> I run Archlinux x86_64 on 2.6.37. It's my first bug report. 
> Ask me for additionnal information if I could help.
> 
> Regards,
> 
> PhC
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