From: Jesse Barnes <jbarnes@engr.sgi.com>
To: linux-ia64@vger.kernel.org
Subject: Re: fix memory corruption/crash for physical-mode EFI calls
Date: Tue, 13 Jul 2004 15:18:30 +0000 [thread overview]
Message-ID: <200407131118.30269.jbarnes@engr.sgi.com> (raw)
In-Reply-To: <16623.29412.381259.793452@napali.hpl.hp.com>
On Tuesday, July 13, 2004 10:54 am, Jack Steiner wrote:
> On Fri, Jul 09, 2004 at 09:39:00PM -0700, David Mosberger wrote:
> > Jesse,
> >
> > I think you'll want to try out the patch below. If my guess is
> > correct and the SGI firmware doesn't support switching into virtual
> > mode, then this may fix the boot-problem you are seeing on SN2.
>
> FYI, I looked at the SGI boot failures that are occurring on recent 2.6
> kernels that have INIT_TASK in region 5. The boot failures are caused by a
> bug in our PROM. It incorrectly assumes that the stack is identity mapped.
> (Dont ask... :-)
Ugg, I remembered that we had code for calling in virtual or physical mode,
but I should have checked to make sure it didn't assume identity mapping!
> We'll fix our PROM....
Thanks,
Jesse
next prev parent reply other threads:[~2004-07-13 15:18 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-10 4:39 fix memory corruption/crash for physical-mode EFI calls David Mosberger
2004-07-10 16:54 ` Jesse Barnes
2004-07-12 20:41 ` David Mosberger
2004-07-13 14:54 ` Jack Steiner
2004-07-13 15:18 ` Jesse Barnes [this message]
2004-07-13 22:00 ` David Mosberger
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