From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752427Ab2DCIIr (ORCPT ); Tue, 3 Apr 2012 04:08:47 -0400 Received: from gate.crashing.org ([63.228.1.57]:46271 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751458Ab2DCIIp (ORCPT ); Tue, 3 Apr 2012 04:08:45 -0400 Message-ID: <1333440522.3040.9.camel@pasglop> Subject: Re: 3.4.0-rc1: No init found From: Benjamin Herrenschmidt To: Christian Kujau Cc: linuxppc-dev@lists.ozlabs.org, LKML , Al Viro Date: Tue, 03 Apr 2012 18:08:42 +1000 In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.2- Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2012-04-03 at 00:20 -0700, Christian Kujau wrote: > Going from 3.3-rc7 to 3.4-rc1 (with "make oldconfig" inbetween) did not > go well on this PowerBook G4 machine: > > Apr 2 15:18:23 [ 8.318816] EXT4-fs (hda6): mounted filesystem with ordered data mode. Opts: (null) > Apr 2 15:18:23 [ 8.320286] VFS: Mounted root (ext4 filesystem) readonly on device 3:6. > Apr 2 15:18:23 [ 8.341555] devtmpfs: mounted > Apr 2 15:18:23 [ 8.343384] Freeing unused kernel memory: 204k freed > Apr 2 15:18:23 [ 8.457056] Kernel panic - not syncing: No init found. Try passing init= option to kernel. See Linux Documentation/init.txt for guidance. > Apr 2 15:18:23 [ 8.459936] Rebooting in 180 seconds.. I have observed this randomly on the G5 ... sometimes, if I try again, it works... it's very very odd. There is some kind of race maybe with async startup ? Or a problem with the vfs path walking ? It's certainly not easily reproducable for me, it goes away from one boot to the next. It also happens sometimes with an initramfs (cpio), it's not specific to ext{2,3,4}. Cheers, Ben. > No bootoptions were changed, no disks swapped, no partitions altered > whatsoever. Full .config & dmesg: > > http://nerdbynature.de/bits/3.4.0-rc1/init/ > > Thanks, > Christian. > > PS: Unfortunately I cannot boot into the old (3.3-rc7) kernel > right now (which is still installed via "yaboot" and present in > /boot), because of this: > http://nerdbynature.de/bits/3.4.0-rc1/init/mac-invalid-memory.JPG > Booting into Debian's "squeeze" kernel (2.6.32) which resides in > the same /boot directory succeeds. Hrm, did it used to boot ? Can you do printenv in OF and tell me what your load-base, real-base, virt-base etc... are ? Might also be worth updating yaboot, debian should have 1.3.16 nowadays. Cheers, Ben.