nilfs_cleanerd won't run on root

Hello world,
I've installed linux on a 10gb nilfs2 root partition /dev/sda2. When I boot into it nilfs_cleanerd won't run

root:/home/andy# ps aux | grep nilfs_cleanerd
root      1497  0.0  0.0   5456   592 pts/0    S+   17:18   0:00 grep nilfs_cleanerd

If I start nilfs_cleanerd with a command it quits with no error message at the command prompt but it leaves this in the system log

Nov  5 17:18:05 eccles nilfs_cleanerd[1495]: start
Nov  5 17:18:05 eccles nilfs_cleanerd[1495]: cannot open nilfs on (null): No such file or directory
Nov  5 17:18:05 eccles nilfs_cleanerd[1495]: cannot create cleanerd on (null): No such file or directory
Nov  5 17:18:05 eccles nilfs_cleanerd[1495]: shutdown

If I pass it different options the only thing that changes is the error it dumps in the system log

root:/home/andy# nilfs_cleanerd /

Nov  5 17:19:02 eccles nilfs_cleanerd[1503]: start
Nov  5 17:19:02 eccles nilfs_cleanerd[1503]: cannot open nilfs on /: Inappropriate ioctl for device
Nov  5 17:19:02 eccles nilfs_cleanerd[1503]: cannot create cleanerd on /: Inappropriate ioctl for device
Nov  5 17:19:02 eccles nilfs_cleanerd[1503]: shutdown

root:/home/andy# nilfs_cleanerd /dev/sda2

Nov  5 17:19:26 eccles nilfs_cleanerd[1505]: start
Nov  5 17:19:26 eccles nilfs_cleanerd[1505]: cannot open nilfs on /dev/sda2: No such file or directory
Nov  5 17:19:26 eccles nilfs_cleanerd[1505]: cannot create cleanerd on /dev/sda2: No such file or directory
Nov  5 17:19:26 eccles nilfs_cleanerd[1505]: shutdown

root:/home/andy# cat /etc/mtab
/dev/sda2 / nilfs2 rw,gcpid=1292 0 0
proc /proc proc rw 0 0
sysfs /sys sysfs rw 0 0
devpts /dev/pts devpts rw,gid=4,mode=620 0 0
shm /dev/shm tmpfs rw 0 0
/dev/sda1 /mnt/windows ntfs rw,umask=0 0 0
/dev/sda7 /home reiserfs rw 0 0
/dev/sda3 /mnt/lfs btrfs rw 0 0

The only way I can get garbage collection to run is if I reboot into a different partition and mount it from there.

Andrew Benton

Hi, Andrew

Which distribution are you using?
What version of kernel and nilfs module are in the distro? How is your /proc/mounts like?

It looks like you are using a bit older version. Older version of nilfs2-utils had the similar problem, but latest version would not have the issue.

regards,

Jiro SEKIBA <[email protected]>

At Thu, 05 Nov 2009 17:41:00 +0000,

I'm using nilfs-utils-2.0.14. The kernel is a vanilla 2.6.31.4 self compiled with no modules (everything compiled in). The system is self compiled (based on Linux From Scratch).
/proc/mounts is a symbolic link pointing at /proc/self/mounts. /proc/self is a symbolic link pointing at /proc/1511 so /proc/mounts is actually pointing at /proc/1511/mounts

andy:~$ cat /proc/mounts
rootfs / rootfs rw 0 0
/dev/root / nilfs2 rw,relatime 0 0
proc /proc proc rw,relatime 0 0
sysfs /sys sysfs rw,relatime 0 0
tmpfs /dev tmpfs rw,relatime,mode=755 0 0
devpts /dev/pts devpts rw,relatime,gid=4,mode=620 0 0
shm /dev/shm tmpfs rw,relatime 0 0
/dev/sda1 /mnt/windows ntfs ro,relatime,uid=0,gid=0,umask=00,nls=default,errors=continue,mft_zone_multiplier=1 0 0
/dev/sda7 /home reiserfs rw,relatime 0 0
/dev/sda3 /mnt/lfs btrfs rw,relatime 0 0
andy:~$

Thanks for your help, that pointed me in the right direction. /proc/mounts shows the root filesystem as /dev/root, which doesn't exist. If I make a symbolic link /dev/root pointing at /dev/sda2 then I can start nilfs_cleanerd.
Now I just need to craft a udev rule to make that symbolic link and start nilfs_cleanerd.

Andy