From: Trond Myklebust <trond.myklebust@fys.uio.no>
Subject: Re: RedHat Rawhide Kernels
Date: 08 Aug 2002 23:35:01 +0200
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To: Benjamin LaHaise <bcrl@redhat.com>
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>>>>> " " == Benjamin LaHaise <bcrl@redhat.com> writes:

    >> Do you have any details on the hangs in question that might
    >> help?

     > Basically, under heavy load several processes end up stuck in
     > lock_page being called from generic_file_read.  The problem is
     > very hard to reproduce (at least I can't on my local machines).

The only other hang I can think of concerns only HIGHMEM machines,
where you can deadlock while exhausting all free kmap() resources.

Also fixed (well - at least chances are *very* heavily reduced) in the
new 'kmap' patchsets.

Cheers,
  Trond


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