Re: nilfs_cleanerd from nilfs-utils shutdown on version 2.0 and 2.1 does not fail but says nothing and does not clean the old checkpoints nor newer (actually older) ones.

[Ryusuke Konishi <konishi.ryusuke-Zyj7fXuS5i5L9jVzuh4AOg@public.gmane.org>]

Hi,
On Sun, 04 Dec 2011 23:56:40 +0900 (JST), Ryusuke Konishi wrote:
> Hi,
> On Fri, 2 Dec 2011 16:33:09 -0800, Zahid Chowdhury wrote:
> > Hello,
> >   If I move the system date forward, have some checkpoints created and then move the date backward a 2.0 cleanerd daemon fails on this error:
> >     Nov 30 14:39:37 nilfs_cleanerd[5789]: start
> >     Nov 30 14:39:38 kernel: nilfs_ioctl_move_inode_block: conflicting data             
> >         buffer: ino=4, cno=0, offset=0, blocknr=665655, vblocknr=566462
> >     Nov 30 14:39:38 kernel: NILFS: GC failed during preparation: cannot read 
> >         source blocks: err=-17
> >     Nov 30 14:39:38 nilfs_cleanerd[5789]: cannot clean segments: File exists
> >     Nov 30 14:39:38 nilfs_cleanerd[5789]: shutdown
> > 
> > I cannot ever start up the daemon. If I move to a 2.1 daemon, then it logs no errors, but it cleans no old or newer (really older) checkpoints - it just sits in a do-nothing mode (strace(1) shows he is hung on a mq_timedreceive syscall).
> 
> Hmm, this error seems to be caused by a known bug which was already
> fixed on nilfs-utils 2.1 with the following patch.
> 
> It might be an actual corruption by the kernel code of nilfs2 if you
> were using old kernels, but it's most likely due to the bug.
> 
> I will backport the fix to nilfs-utils 2.0 series and make another
> release of it.
> 
> Regards,
> Ryusuke Konishi

I've just released nilfs-utils-2.0.24 on nilfs.org.  Please try it.

Thanks,
Ryusuke Konishi
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