From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: 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 2276CB6F1C for ; Wed, 13 Apr 2011 18:58:32 +1000 (EST) Subject: Re: [regression] 2.6.39-rc[1-3] fail to boot on G5 PowerMac From: Benjamin Herrenschmidt To: Mikael Pettersson In-Reply-To: <19877.23529.745123.819112@pilspetsen.it.uu.se> References: <19876.35918.322649.256455@pilspetsen.it.uu.se> <1302646173.28876.53.camel@pasglop> <1302652502.28876.76.camel@pasglop> <19877.23529.745123.819112@pilspetsen.it.uu.se> Content-Type: text/plain; charset="UTF-8" Date: Wed, 13 Apr 2011 18:58:22 +1000 Message-ID: <1302685102.28876.81.camel@pasglop> Mime-Version: 1.0 Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Wed, 2011-04-13 at 10:16 +0200, Mikael Pettersson wrote: > > Ok so on a PowerMac7,3 here (dual 2.5Ghz and mostly same HW or at least > > very similar) I can't reproduce your problem with a g5_defconfig. > > > > Your config doesn't work well for me (I don't do modules, I netboot), > > but after adding a few things to it, it seems to work fine as well. I > > added radeonfb and the radeon DRM (not KMS) and I added eventfd, timerfd > > and input events. > > > > So I'm afraid I'm going to need you to bisect that one to find out what > > exact change caused the breakage for you. > > Thanks for checking. I'll try a bisect later today. Actually I do get a crash in X later on... something in the radeon DRM interrupt code is getting what looks like a NULL dereference. I'll try to dig that one later on. I don't know if it's related to your problem at all though. Cheers, Ben.