Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753244AbdLMCxL (ORCPT ); Tue, 12 Dec 2017 21:53:11 -0500 Received: from mx1.redhat.com ([209.132.183.28]:42040 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752708AbdLMCxH (ORCPT ); Tue, 12 Dec 2017 21:53:07 -0500 Date: Wed, 13 Dec 2017 10:52:56 +0800 From: Dave Young To: Thomas Gleixner Cc: Juergen Gross , Yu Chen , Tony Luck , Boris Ostrovsky , Borislav Petkov , Rui Zhang , Arjan van de Ven , Dan Williams , mingo@kernel.org, kexec@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Regression: kexec/kdump boot hangs with x86/vector commits Message-ID: <20171213025256.GA1913@dhcp-128-65.nay.redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.9.1 (2017-09-22) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Wed, 13 Dec 2017 02:53:06 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2732 Lines: 84 Hi, Kexec reboot and kdump has broken on my laptop for long time with 4.15.0-rc1+ kernels. With the patch below an early panic been fixed: https://patchwork.kernel.org/patch/10084289/ But still can not get a successful reboot, it looked like graphic issue, but after bisecting the kernel, I got below: [dyoung@dhcp-*-* linux]$ git bisect good There are only 'skip'ped commits left to test. The first bad commit could be any of: 2db1f959d9dc16035f2eb44ed5fdb2789b754d6a 4900be83602b6be07366d3e69f756c1959f4169a We cannot bisect more! These two commits can no be reverted because of code conflicts, thus I reverted the whole series from Thomas (below commits), with those x86/vector changes reverted, kexec reboot works fine. Could you help to take a look, any thoughts? I can do the test if you have some debug patch to try. commit 90ad9e2d91067983f3328e21b306323877e5f48a Author: Thomas Gleixner Date: Wed Sep 13 23:29:49 2017 +0200 x86/io_apic: Reevaluate vector configuration on activate() commit 2db1f959d9dc16035f2eb44ed5fdb2789b754d6a Author: Thomas Gleixner Date: Wed Sep 13 23:29:50 2017 +0200 x86/vector: Handle managed interrupts proper commit 4900be83602b6be07366d3e69f756c1959f4169a Author: Thomas Gleixner Date: Wed Sep 13 23:29:51 2017 +0200 x86/vector/msi: Switch to global reservation mode commit 464d12309e1b5829597793db551ae8ecaecf4036 Author: Thomas Gleixner Date: Wed Sep 13 23:29:52 2017 +0200 x86/vector: Switch IOAPIC to global reservation mod commit 2cffad7bad83157f89332872015f4305d2ac09ac Author: Thomas Gleixner Date: Wed Sep 13 23:29:53 2017 +0200 x86/irq: Simplify hotplug vector accounting commit d6ffc6ac83b1f9f12652d89b9cb5bcbfbea7796c Author: Thomas Gleixner Date: Wed Sep 13 23:29:54 2017 +0200 x86/vector: Respect affinity mask in irq descriptor commit 02edee152d6ea325c88898f3a702f5db2d78de7a Author: Thomas Gleixner Date: Thu Oct 12 11:05:28 2017 +0200 x86/apic/vector: Ignore set_affinity call for inactive interrupts commit 0696d059f23c05f2dbc3b19ef50e5bdd175b782b Author: Thomas Gleixner Date: Mon Oct 16 16:16:19 2017 +0200 x86/vector: Use correct per cpu variable in free_moved_vector() ---------------- BTW, my git HEAD is below: commit 43570f0383d6d5879ae585e6c3cf027ba321546f (origin/master, origin/HEAD, bisect) Merge: 43f462f1c2e1 c14ca8386539 Author: Linus Torvalds Date: Tue Nov 28 16:22:10 2017 -0800 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Thanks Dave