From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.org (ozlabs.org [203.10.76.45]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "mx.ozlabs.org", Issuer "CA Cert Signing Authority" (verified OK)) by bilbo.ozlabs.org (Postfix) with ESMTPS id 3DA0CB7C7D for ; Wed, 19 Aug 2009 08:33:42 +1000 (EST) Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 9776FDDD01 for ; Wed, 19 Aug 2009 08:33:41 +1000 (EST) Subject: Re: [PATCH/RFC] powerpc/mm: Cleanup handling of execute permission From: Benjamin Herrenschmidt To: Josh Boyer In-Reply-To: <20090818205621.GB2530@zod.rchland.ibm.com> References: <1248766373.30993.50.camel@pasglop> <20090818205621.GB2530@zod.rchland.ibm.com> Content-Type: text/plain Date: Wed, 19 Aug 2009 08:33:20 +1000 Message-Id: <1250634800.4810.1.camel@pasglop> Mime-Version: 1.0 Cc: linuxppc-dev list , Kumar Gala List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Tue, 2009-08-18 at 16:56 -0400, Josh Boyer wrote: > On Fri, Aug 14, 2009 at 05:39:42PM -0500, Becky Bruce wrote: > > Ben, > > > > This breaks the boot on 8572. I don't know why yet (and I'm probably > > not going to figure it out before I go home, because, frankly, it's late > > on a Friday afternoon and I need a glass of wine or, perhaps, a beer). > > > > Kumar and I will poke into this more and let you know what we find out - > > in the meantime, if you have any brilliant flashes, pony up! > > I tested this on a 440EPx NFS rootfs boot too. It doesn't cause init itself > to crap out with a SIGILL like Becky's board, but it does do weird things > and cause a SIGILL elsewhere during my boot. > > Reverting this patch from your testing branch allows things to work just fine. Becky found my thinko, I'll send a new patch later today. Cheers, Ben.