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    SubjectRe: [BUG] nfs client stuck in D state in linux 2.4.17 - 2.4.21-pre5
    On Wed, May 21, 2003 at 10:29:23AM +0100, Russell King wrote:
    > On Mon, May 19, 2003 at 05:20:27PM +0400, Vladimir Serov wrote:
    > > My current kernel is 2.4.21-pre6 based with patches from 2.4.19-rmk7
    > > applied (well partially, except ide and pci cause i don't have them,
    > > board is mostly brutus). I'm using HARD mounted nfs
    > > volume now !!! The tail of dmesg is following.
    >
    > Looking back on stuff which happened a long time ago, there's a
    > possibility that there's an ordering issue with set_current_state.
    >
    > Please note that this is affects _all_ 2.4 architectures.
    >
    > I think this was discussed about 6 months ago, so I'm surprised this
    > hasn't made it into the 2.4.2x kernel (or no one else has seen the
    > problem.)

    Yes, it was first discovered 7 months ago, but it seems Marcelo didn't
    merge the fix:

    > Date: Fri, 18 Oct 2002 23:00:58 -0400 (EDT)
    > From: Nicolas Pitre <nico@cam.org>
    > To: Marcelo Tosatti <marcelo@conectiva.com.br>
    > Subject: [PATCH] set_task_state() UP memory barriers

    Nicolas included a more complete fix which updates all 2.4 architectures.
    Nico - could you re-send your fix please?

    --
    Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux
    http://www.arm.linux.org.uk/personal/aboutme.html

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