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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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