Re: nilfs2 weird issue - snapshots are gone, cleanerd not running

[Piotr Szymaniak <szarpaj-TbOm9Ca2r9GrDJvtcaxF/A@public.gmane.org>]

[-- Attachment #1: Type: text/plain, Size: 1381 bytes --]

On Tue, Jul 10, 2012 at 08:09:37PM +0900, Ryusuke Konishi wrote:
> On Tue, 10 Jul 2012 14:38:55 +0400, Vyacheslav Dubeyko wrote:
> > I think after analysis of strace output that Piotr Szymaniak has the
> > same problem. But maybe I wrong. 
> 
> According to the log, his problem looks different.
> 
> cleanerd fails with ENOENT error (No such file or directory)
> if it couldn't find the given device in /proc/mounts.
> 
> His /proc/mounts looks:
> 
> rootfs / rootfs rw 0 0
> /dev/root / nilfs2 rw 0 0
> ..
> 
> And, the strace log shows that /dev/root didn't exist.
> 
> I guess the problem would be fixed if a proper symbolic link pointing
> to the real device is created as /dev/root.

Yes, it seems so. Just after I wrote my amateur strace analysis I tried
to fix it by hand. Made a symlink from /dev/root to /dev/sda2 and
remounted /. nilfs_cleanerd started fine.

But why is it failing on /dev/root anyway? It's started with
/dev/disk/by-uuid/uuid pointing to a proper device (sda2). Do we really
need /dev/root?

Also, maybe there's a reason to remove /dev/root? I will try later with
some older udev to see if it is created.


Piotr Szymaniak.
-- 
<kow`> "There are 10 types of people in the world... those who
understand binary and those who don't."
<SpaceRain> That's only 2 types of people, kow.
<SpaceRain> STUPID
  -- bash.org

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 836 bytes --]