> > Just to follow up, did the problems go away when switching to ext3?
> 
> The switch has been delayed. Up to now we just reboot the machine every
> 48h - the administrator responsible for the machine is on holiday... 
> 
> Meanwhile, I noticed, that the latest release candidate has several
> changes which could be quite interesting for us:
> 
> <andrea@suse.de>
>     [PATCH] orphaned pagecache memleak fix
> 
>     Chris found that with data journaling a reiserfs pagecache may
>     be truncate while still pinned.  The truncation removes the
>     page->mapping, but the page is still listed in the VM queues
>     because it still has buffers.  Then during the journaling process,
>     a buffer is marked dirty and that sets the PG_dirty bitflag as well
>     (in mark_buffer_dirty).  After that the page is leaked because it's
>     both dirty and without a mapping.
> 
> <mason@suse.com>
>     [PATCH] reiserfs: make sure data=journal buffers are cleaned on free
> 
>     In data=journal mode, when blocks are freed and their buffers
>     are dirty, reiserfs can remove them from the transaction without
>     cleaning them. These buffers never get cleaned, resulting in an
>     unfreeable page.
> 
> On the other side we don't want to install a rc1-kernel on a important
> system. Up to now we still plan to do the switch to ext3...
> 
> If someone would recommend to install a special reiserfs-patch (*not*
> the 12mb of patch-2.6.12-rc1) we would consider that, too! So some
> feedback from "the big sharks" is still very welcome.
> 

I've attached the two (small) patches that you mentioned above if you
decide to take another try with reiserfs.

Alex