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Subject: Re: [PATCH] powerpc/8xx: fix regression introduced by cache
	coherency rewrite
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Joakim Tjernlund <joakim.tjernlund@transmode.se>
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Date: Tue, 29 Sep 2009 17:07:37 +1000
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On Tue, 2009-09-29 at 08:26 +0200, Joakim Tjernlund wrote:
> > I've tried sticking tlbil_va() in those places, nothing seems to
> help.
> > In some cases userspace is slow, in other cases userspace is faster
> and
> > unstable: sometimes commands hang, sometimes I am able to ctrl-c and
> > and kill it, sometimes I get other strange crashes or falures (so
> far no
> > kernel oopses though).
> 
> This is exactly what you get when the "cache insn does not update DAR"
> bug hits
> you.

But then why was it working fine before ? Or it wasn't ?

Ben.