From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Mikael Pettersson <mikpe@csd.uu.se>
Cc: Linux Kernel list <linux-kernel@vger.kernel.org>,
linuxppc-dev list <linuxppc-dev@lists.linuxppc.org>,
Paul Mackerras <paulus@samba.org>
Subject: Re: [BUG] asm-ppc/pgtable.h breakage from 2.6.7-rc1-bk4
Date: Sat, 05 Jun 2004 17:29:23 -0500 [thread overview]
Message-ID: <1086474562.12783.48.camel@gaston> (raw)
In-Reply-To: <200406051956.i55JuBrt012803@harpo.it.uu.se>
On Sat, 2004-06-05 at 14:56, Mikael Pettersson wrote:
> The current 2.6.7-rc2 kernel hangs after starting INIT
> on my PowerMac 4400. I traced the problem to the
> ptep_set_access_flags() patch in 2.6.7-rc1-bk4, which
> replaces ptep_establish()'s set_pte();flush_tlb_page()
> sequence with a single pte_update() in two places in
> mm/memory.c.
>
> The patch below disables this change on ppc32, and
> allows my 603ev-based PM4400 to finally boot 2.6.7-rc2.
Can you try just adding the flush_tlb_page() to
ptep_set_access_flags() and let me know if that helps ? I need
to figure out what's wrong with "manual" TLB loads, I suspect
it's the same problem the 8xx folks are hitting, but I don't
see why at this point.
Ben.
next prev parent reply other threads:[~2004-06-05 22:30 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-05 19:56 Mikael Pettersson
2004-06-05 22:29 ` Benjamin Herrenschmidt [this message]
2004-06-06 1:39 Mikael Pettersson
2004-06-06 1:50 ` Benjamin Herrenschmidt
2004-06-06 11:17 Mikael Pettersson
2004-06-06 20:48 ` Benjamin Herrenschmidt
2004-06-06 21:05 ` Benjamin Herrenschmidt
2004-06-06 23:26 Mikael Pettersson
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