Re: Major XFS problems...

[Eric Sandeen <sandeen@xxxxxxx>]

Anders Saaby wrote:

> > Which slab cache(s) are growing... This is probably a "normal"
> > side-effect of iterating over millions of inodes.
>
> Check http://lkml.org/lkml/2004/8/24/53 - That explains what we are seeing.

> > 03:00:                  06:00:
> > xfs_chashlist  91297    xfs_chashlist     151994
> > xfs_inode     243791    xfs_inode         586780
> > linvfs_icache 243791    linvfs_icache     586807
> > dentry_cache  196033    dentry_cache      430609

So your dentry cache doubled, and associated xfs data structures doubled 
along with it.  This is not an xfs bug; xfs can't tear down it's inodes 
if dentries have them referenced...

I thought there were cache shrinkers in 2.6 that would shake out 
dentries when memory got low, though...

-Eric