From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751153AbdBKU6c (ORCPT ); Sat, 11 Feb 2017 15:58:32 -0500 Received: from mail-wm0-f67.google.com ([74.125.82.67]:32824 "EHLO mail-wm0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750778AbdBKU6a (ORCPT ); Sat, 11 Feb 2017 15:58:30 -0500 Subject: Re: Linux 4.9.6 ( Restore IO-APIC irq_chip retrigger callback , breaks my box ) To: Borislav Petkov References: <20170126074846.GA19870@kroah.com> <1e88cc0e-4d34-a314-a44f-8324335b79e3@gmail.com> <73c6bd86-3ebb-c6db-b522-47a48b847227@gmail.com> <20170211142059.447eo6bgxycmp6kb@pd.tnic> Cc: Thomas Gleixner , Linus Torvalds , Greg KH , Linux Kernel Mailing List , Andrew Morton , stable , lwn@lwn.net, Jiri Slaby , Ruslan Ruslichenko From: Gabriel C Message-ID: Date: Sat, 11 Feb 2017 21:58:26 +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: <20170211142059.447eo6bgxycmp6kb@pd.tnic> Content-Type: text/plain; charset=utf-8; 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 15:21, Borislav Petkov wrote: > On Sat, Feb 11, 2017 at 02:09:14PM +0100, Gabriel C wrote: >> Adding ' dis_ucode_ldr ' to commandline makes the kernel hangs right after : > > Wait a minute, are you saying that without dis_ucode_ldr you can't even > boot so far? Yes , it will hang before tsc message .. Also sometimes I have same trace sometimes it just hangs forever. > >> 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 > > Watchdog fires on all cores showing they're all idle. For some reason, > not all cores get to dump the watchdog splat, though. Some seem really > stuck. > > And you have TAINT_FIRMWARE_WORKAROUND due to > intel_prepare_irq_remapping() noticing intr remapping is broken on that > box. Well yes and I'm not so sure is really broken.. I reverted the patch blacklisted my box right after it was addeded the time and I don't have any issues .. however since I don't have a use of that feature I don't really care is marked broken or not.. > > Would be better if you could disable that frugalware splash screen and > switch to grub console mode so that we can see the very beginning of the > boot. I do that tomorrow ... > > Btw, your BIOS is from 2013. Is there new one, per chance, on your > vendor's site? Might wanna consider updating it... > This BIOS was / is newest one :(