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    SubjectRe: [PATCH 5/6] SUNHME: Workaround ancient hang on U1's
    On Wed, 2007-05-23 at 17:17 -0700, David Miller wrote:
    > From: Ben Collins <>
    > Date: Wed, 23 May 2007 18:30:46 -0400
    > > This work around has been in use by almost any distribution trying to
    > > support sparc64 since at least 2002. Without it, sunhme hangs fairly
    > > quickly on UltraSPARC 1's.
    > >
    > > Dave, I know it's not in the kernel because it isn't a "fix", but given
    > > that we haven't seen a fix in more than 5 years, can we get this out of my
    > > tree please? :)
    > It isn't needed any more, the hang no longer occurs.
    > Nobody should be applying that patch, my guess is that it was
    > a GCC bug that has been fixed over time that reordered the
    > writes to RX/TX descriptors which hung the chip.

    Ah, thanks. I'll revert it out. Seemed like every time I yanked it out
    of the our tree (Debian/Ubuntu) some one would complain, and I had to
    put it back in.

    Ubuntu :

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