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SubjectInode leak in dcache pruning, apparently
According to Mikulas Patocka:
> What happens when you try to unmount filesystem?
> [...]
> If it unmounts and the number of inodes drops after umount, it's because
> pruning dcache works badly.

BINGO! Dcache pruning must be failing. Here's the status before unmounting
one filesystem:
/proc/sys/fs/inode-nr:1200 22
And after:
/proc/sys/fs/inode-nr:1200 171
So apparently 151 inodes were hanging around in the dcache.

Thank you Mikulas! Now the toughie: How to track down the pruning weakness?
--
Chip Salzenberg - a.k.a. - <chip@valinux.com>
"He's Mr. Big of 'Big And Tall' fame." // MST3K

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