ZFS file caching question

[Richard Todd]

Andrew Gallatin <gallatin at cs.duke.edu> writes:

> Kris Kennaway writes:
>  > Andrew Gallatin wrote:
>  > > Hmm.. Could this be the cause of the problems with ZFS and mmap'ed files?
>  > 
>  > What problems do you mean?  There were coherency problems but I think 
>  > they were fixed.
>
> The last I saw about this on -current was:
> http://lists.freebsd.org/pipermail/freebsd-current/2008-February/083396.html
>
> This seemed to terminate with people disabling mmap in the
> applications, not with a fix to ZFS.  Maybe I missed a commit..

Someone else recently asked me in email about the mmap bug I reported in
the above thread, so I recently ran a retest; the bug was still there as of
Apr 7th -CURRENT.