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 DAC03DDF27 for ; Mon, 19 Jan 2009 08:44:43 +1100 (EST) Subject: Re: [BUG] 2.6.28-git12: "powerpc/pci: Reserve legacy regions on PCI" broke my G3 From: Benjamin Herrenschmidt To: Mikael Pettersson In-Reply-To: <200901172246.n0HMkvrv004832@harpo.it.uu.se> References: <200901172246.n0HMkvrv004832@harpo.it.uu.se> Content-Type: text/plain Date: Mon, 19 Jan 2009 08:44:20 +1100 Message-Id: <1232315060.23611.44.camel@pasglop> Mime-Version: 1.0 Cc: linuxppc-dev@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 Sat, 2009-01-17 at 23:46 +0100, Mikael Pettersson wrote: > The 2.6.29-rc kernels hang during boot on my PowerMac G3 (Beige). > The last messages I see on the console are > > Kernel command line: ramdisk_size=8192 > irq: Found primary Apple PIC /pci/mac-io for 64 irqs > irq: System has 64 possible interrupts > > and then it hangs until I reboot it. Unfortunately I don't have a serial cable > compatible with the G3's serial port so I can't set up a serial console. > > Eventually I narrowed the cause down to "powerpc/pci: Reserve legacy regions on PCI" > (commit c1f343028d35ba4e88cd4a3c44e0d8b8a84264ee) in 2.6.28-git12. Reverting that > from 2.6.29-rc2 results in a kernel that boots ok and works reliably. > > The problem seems system specific as both my G5 and my G4 had no problems at all > with 2.6.29-rc1. Thanks, I'll try to narrow it down, but it will take a week or so as I'm away attending LCA. I think I have one of these Beige G3's in the office somewhere.... Cheers, Ben.