From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D9D1FC433E0 for ; Mon, 25 Jan 2021 21:19:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9CA7E20708 for ; Mon, 25 Jan 2021 21:19:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732576AbhAYVS0 convert rfc822-to-8bit (ORCPT ); Mon, 25 Jan 2021 16:18:26 -0500 Received: from mail.fireflyinternet.com ([77.68.26.236]:54302 "EHLO fireflyinternet.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1732089AbhAYVOp (ORCPT ); Mon, 25 Jan 2021 16:14:45 -0500 X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.65.138; Received: from localhost (unverified [78.156.65.138]) by fireflyinternet.com (Firefly Internet (M1)) with ESMTP (TLS) id 23697578-1500050 for multiple; Mon, 25 Jan 2021 21:13:58 +0000 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT In-Reply-To: <20210125210456.GA196782@linux.ibm.com> References: <161160687463.28991.354987542182281928@build.alporthouse.com> <20210125210456.GA196782@linux.ibm.com> Subject: Re: Linux 5.11-rc5 From: Chris Wilson Cc: Linus Torvalds , Andrew Morton , Linux Kernel Mailing List To: Mike Rapoport Date: Mon, 25 Jan 2021 21:13:59 +0000 Message-ID: <161160923954.29150.8571056944016500691@build.alporthouse.com> User-Agent: alot/0.9 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Quoting Mike Rapoport (2021-01-25 21:04:56) > On Mon, Jan 25, 2021 at 08:34:34PM +0000, Chris Wilson wrote: > > Quoting Linus Torvalds (2021-01-25 01:06:40) > > > Mike Rapoport (3): > > ... > > > mm: fix initialization of struct page for holes in memory layout > > > > We have half a dozen or so different machines in CI that are silently > > failing to boot, that we believe is bisected to this patch. > > > > 17:56 tsa : ickle: dolphin: I hit the following patch in my bisection, and the hang is also dependent on kconfig > > 17:56 tsa : first bad commit: [d3921cb8be29ce5668c64e23ffdaeec5f8c69399] mm: fix initialization of struct page for holes in > > memory layout > > 17:57 tsa : couldn't reproduce on older CI kconfig, current one does it > > https://gitlab.freedesktop.org/gfx-ci/i915-infra/-/blob/master/kconfig/debug > > > > Here's a boot dmesg from some affected machines from just before the merge > > with rc5: > > https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9676/shard-skl1/boot18.txt > > https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9676/fi-skl-6600u/boot.html > > https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9676/fi-bsw-cyan/boot.html > > https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9676/fi-bdw-samus/boot.html > > Is there any way to get early console from these machines? 12:16 tsa : none of those have good hook for serial Nothing on the console and no serial console option, and panics before netconsole. Maybe some early_printk and boot_delay if you think there's something to see with those, but I'll have to ask Tomi nicely tomorrow. -Chris