From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753635AbdBKNJV (ORCPT ); Sat, 11 Feb 2017 08:09:21 -0500 Received: from mail-wm0-f65.google.com ([74.125.82.65]:32857 "EHLO mail-wm0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753198AbdBKNJT (ORCPT ); Sat, 11 Feb 2017 08:09:19 -0500 Subject: Re: Linux 4.9.6 ( Restore IO-APIC irq_chip retrigger callback , breaks my box ) To: Thomas Gleixner References: <20170126074846.GA19870@kroah.com> <1e88cc0e-4d34-a314-a44f-8324335b79e3@gmail.com> Cc: Linus Torvalds , Greg KH , Linux Kernel Mailing List , Andrew Morton , stable , lwn@lwn.net, Jiri Slaby , Ruslan Ruslichenko From: Gabriel C Message-ID: <73c6bd86-3ebb-c6db-b522-47a48b847227@gmail.com> Date: Sat, 11 Feb 2017 14:09:14 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.7.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11.02.2017 09:26, Thomas Gleixner wrote: > > You might try with 'earlyprintk' on the command line. That should tell more. With that I have some more output.. and after lots more boots I found out there are really at least 2 bugs triggered by this in 4.10. When just boothing with earlyprintk=vga debug ignore_loglevel the kernel hangs right after : Key type dns_resolver registered .. The cursor blinks and one have to wait a while this bug to trigger if at all. Sometimes it just hangs there and that is. Adding ' dis_ucode_ldr ' to commandline makes the kernel hangs right after : clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x20ac7f6ecc6, max_idle_ns: 440795315461 ns ... and I have the bug triggered really quick.. Also I cannot get netconsole to work , I'm sure is some problem here local and I don't have any serial cable around right now. The only way I saw now to give you at least some ifo is to make an video of that crash. You can find it there : http://ftp.frugalware.org/pub/other/people/crazy/kernel/t/crash.mp4 Also this is after waiting a while : http://ftp.frugalware.org/pub/other/people/crazy/kernel/t/20170211_130319.jpg I know videos and picures are not the best solution but reight now I don't have any other way to capture some logs :| The kernel is Linus git tree + .d966564fcdc19e13eb6ba1fbe6b8101070339c3d reverted and the config is : http://ftp.frugalware.org/pub/other/people/crazy/kernel/t/config I hope the video helps at least somewhat to have a clue what could be wrong. Regards, Gabriel C