From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Andreas Schwab <schwab@suse.de>
Cc: Andrew Morton <akpm@osdl.org>,
linuxppc-dev list <linuxppc-dev@ozlabs.org>
Subject: Re: [PATCH] Update ppc32-fix-errata-for-some-g3-cpus.patch
Date: Thu, 07 Apr 2005 09:10:19 +1000 [thread overview]
Message-ID: <1112829020.9518.202.camel@gaston> (raw)
In-Reply-To: <jek6nf1pcj.fsf@sykes.suse.de>
On Thu, 2005-04-07 at 01:02 +0200, Andreas Schwab wrote:
> Benjamin Herrenschmidt <benh@kernel.crashing.org> writes:
>
> > The previous version of ppc32-fix-errata-for-some-g3-cpus.patch had an
> > issue that would crash some G4 CPUs on boot. This is fixed in this new
> > version, please replace the old one and send to linus asap (it's now
> > been tested on enough CPUs).
>
> Apparently not. I'm getting "floating point used in kernel" crashes
> during wakeup on my iBook G3 (750FX).
And does removing that patch fixes it ? That is very strange. The patch
works fine here on a G3 Pismo and a couple of G4s, the code in the patch
does enable the FPU before initilizing the registers, so the kernel
shouldn't take any FP exception... Couldn't the above be a different
problem ? What is the exact PC where the exception occurs ? what
instruction does it correspond to ?
Ben.
next prev parent reply other threads:[~2005-04-06 23:11 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-05 6:05 [PATCH] Update ppc32-fix-errata-for-some-g3-cpus.patch Benjamin Herrenschmidt
2005-04-06 23:02 ` Andreas Schwab
2005-04-06 23:10 ` Benjamin Herrenschmidt [this message]
2005-04-06 23:38 ` Andreas Schwab
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