From: Benjamin LaHaise <bcrl@redhat.com>
To: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: NFS maillist <nfs@lists.sourceforge.net>
Subject: Re: RedHat Rawhide Kernels
Date: Thu, 8 Aug 2002 17:27:29 -0400 [thread overview]
Message-ID: <20020808172729.J28223@redhat.com> (raw)
In-Reply-To: <15698.57249.605357.32060@charged.uio.no>; from trond.myklebust@fys.uio.no on Thu, Aug 08, 2002 at 11:16:17PM +0200
On Thu, Aug 08, 2002 at 11:16:17PM +0200, Trond Myklebust wrote:
> Duh... My mistake I didn't read your mail clearly enough...
>
> I know of 1 possible hang in that patchset (a hang which also affects
> the standard 2.4.19 kernel): The spinlock in xprt_write_space() needs
> to be converted to a bh-safe spinlock. The race should be very rare,
> but definitely exists (it's been fixed BTW in the newer patchset)...
Ah, interesting. I'll put that into a test rpm for the people
experiencing the problem to see if it helps.
> 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).
-ben
--
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next prev parent reply other threads:[~2002-08-08 21:27 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-08 19:21 RedHat Rawhide Kernels Jeremy Sanders
2002-08-08 19:33 ` Benjamin LaHaise
2002-08-08 20:16 ` Trond Myklebust
2002-08-08 20:23 ` Benjamin LaHaise
2002-08-08 20:31 ` Trond Myklebust
2002-08-08 20:57 ` Benjamin LaHaise
2002-08-08 21:16 ` Trond Myklebust
2002-08-08 21:27 ` Benjamin LaHaise [this message]
2002-08-08 21:35 ` Trond Myklebust
2002-08-09 1:04 ` Thomas Langås
2002-08-09 4:51 ` Trond Myklebust
2002-08-08 20:21 ` Trond Myklebust
2002-08-12 10:41 ` Jeremy Sanders
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