From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751965AbdJYIMb (ORCPT ); Wed, 25 Oct 2017 04:12:31 -0400 Received: from smtp1.it.da.ut.ee ([193.40.5.66]:34650 "EHLO smtp1.it.da.ut.ee" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751529AbdJYIM0 (ORCPT ); Wed, 25 Oct 2017 04:12:26 -0400 X-Greylist: delayed 399 seconds by postgrey-1.27 at vger.kernel.org; Wed, 25 Oct 2017 04:12:25 EDT Date: Wed, 25 Oct 2017 11:12:21 +0300 (EEST) From: Meelis Roos To: Lorenzo Pieralisi cc: linux-alpha@vger.kernel.org, Linux Kernel list Subject: Re: alpha boot hang - 4.14-rc* regression In-Reply-To: Message-ID: References: User-Agent: Alpine 2.21 (LRH 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > I run Gentoo Linux on my alphas, with latest git kernels for test. > 4.13.0 worked well on 3 alphas but 4.13.0-09217-g5969d1bb3082 hangs on > boot on all 3 of them. Tried bisecting on PC164, got into unrelated > stuff, so probably it does not trigger always. Retried bisecting on > DS10L. On the first try I got that the same keel where I first saw bad > was the culprit, another bisect led me to > 0e4c2eeb758a91e68b9eaf7a4bee9bd5ed97ff2b which looks more related. > > This is how the crash looks on console: > > * Starting udev ... > starting version 225 > [ ok ] > * Generating a rule to create a /dev/root symlink ... > [ ok ] > * Populating /dev with existing devices through uevents ... > [ ok ] > > halted CPU 0 > > halt code = 5 > HALT instruction executed > PC = fffffc00009bf914 > boot failure > >>> > > What else can I do to debug this? Booting with debug ignore_loglevel I get also this: seq 421 queued, 'add' 'platform' seq 417 running passed device to netlink monitor 0x200010c7820 seq 417 processed seq 418 running IMPORT builtin 'hwdb' /lib/udev/rules.d/50-udev-default.rules:15 IMPORT builtin 'hwdb' returned non-zero RUN 'kmod load $env{MODALIAS}' /lib/udev/rules.d/80-drivers.rules:5 Execute 'load' 'platform:alarmtimer' seq 419 running IMPORT builtin 'hwdb' /lib/udev/rules.d/50-udev-default.rules:15 IMPORT builtin 'hwdb' returned non-zero RUN 'kmod load $env{MODALIAS}' /lib/udev/rules.d/80-drivers.rules:5 Execute 'load' 'platform:floppy' No module matches 'platform:floppy' passed device to netlink monitor 0x200010ca0c0 seq 419 processed seq 421 forked new worker [453] seq 422 queued, 'add' 'serio' seq 420 running GROUP 11 /lib/udev/rules.d/40-gentoo.rules:2 GROUP 6 /lib/udev/rules.d/50-udev-default.rules:55 handling device node '/dev/fd0', devnum=b2:0, mode=0660, uid=0, gid=6 set permissions /dev/fd0, 060660, uid=0, gid=6 creating symlink '/dev/block/2:0' to '../fd0' created empty file '/run/udev/data/b2:0' for '/devices/platform/floppy.0/block/fd0' passed device to netlink monitor 0x200010c7820 seq 420 processed No module matches 'platform:alarmtimer' passed device to netlink monitor 0x200010c8c50 seq 418 processed passed 208 byte device to netlink monitor 0x2000109ffa0 seq 423 queued, 'add' 'serio' seq 424 queued, 'add' 'platform' passed 178 byte device to netlink monitor 0x2000109ffa0 seq 425 queued, 'add' 'platform' seq 425 running IMPORT builtin 'hwdb' /lib/udev/rules.d/50-udev-default.rules:15 IMPORT builtin 'hwdb' returned non-zero RUN 'kmod load $env{MODALIAS}' /lib/udev/rules.d/80-drivers.rules:5 Execute 'load' 'platform:rtc-alpha' No module matches 'platform:rtc-alpha' passed device to netlink monitor 0x200010c7820 seq 425 processed seq 424 running IMPORT builtin 'hwdb' /lib/udev/rules.d/50-udev-default.rules:15 IMPORT builtin 'hwdb' returned non-zero RUN 'kmod load $env{MODALIAS}' /lib/udev/rules.d/80-drivers.rules:5 Execute 'load' 'platform:pcspkr' [ 29.890609] libata version 3.00 loaded. passed device to netlink monitor 0x200010c8c50 halted CPU 0 halt code = 5 HALT instruction executed PC = fffffc00009bf914 boot failure So maybe it is related pcspkr loading, or the just loaded libata or floppy... -- Meelis Roos (mroos@linux.ee)