Received: by 2002:a05:6358:d09b:b0:dc:cd0c:909e with SMTP id jc27csp4681145rwb; Mon, 21 Nov 2022 10:27:12 -0800 (PST) X-Google-Smtp-Source: AA0mqf5bv5ISkgExMp2SphwLURBrYVeV0J5GTHGc2kWcp+Uy+f2BoRTKcidSd8pG9Vvq9al29Sh5 X-Received: by 2002:a17:907:8b19:b0:7b5:3288:2cb with SMTP id sz25-20020a1709078b1900b007b5328802cbmr7362976ejc.638.1669055232447; Mon, 21 Nov 2022 10:27:12 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1669055232; cv=none; d=google.com; s=arc-20160816; b=B9GkUDDZU0CAIiwwwMbIMDbEchH8sjryVOn0cZle5YKMZ3TkKnpPIBR2q2B/yhwVzs 2nilea5ND/Ma/GnSvaayUNwzpSQn2aYlG0hOij/DN3m2WkKIxD+ZzIu4g3cHDNZvuic+ 1gljNcTzhYXcEvoMD+j+X6Yl0gLZRZg/ghjAs2oM0QsTcAkndg2yVDr1Y6yg7UX4kkFI H0AF5iHMRoCeIuBRldHATC9X462ycyqBPz+V11OpGuyeWu4la+tKmpEw7FnBA2bIm/cn 8ujMzRqpuacnMpuyGcrVU0JPslZ5R0OELzAXZqf+vbEzpr7OmifZffqCduRT7BBoRe5y p/vQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:user-agent:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date :dkim-signature; bh=J5Px2RjkKopcliL+tTTRajR41bt3zGEBByBVNBiLLCs=; b=ipZoI3LXS5O4E7rpWIZ0YJ6t5H3E7dA/Zui0AGrSoJCQHVUCm+r7jpyBtP/3s8cJP4 0a8xYFU0x9KRJJ/jUl/MHUFCjS9NmHDAAoT1qZMGVV5eq6XmSu79kH2g067hQo3BAczK lYXrSFheWDWWgaTMMz2Afs1yMMMGH5RMvS5vzF8Ey27gntIL+M0HdqODvheBn/BnpIQ5 GP7ZqV3xPX2U8o7TWij2FXTHRfo+is7UdCrHyraq3HRk8IPFkHCZFaheaVWT7zq1yJ5P Ud5VB01LjN8XHkWV+rxGw4MLZzZQvrFV0y6SxZNVGW2F541JXb9fvQnBaVvXqOaIVrrV h5CQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=TNFJxEw6; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id ga5-20020a1709070c0500b0078a19032c70si11511360ejc.334.2022.11.21.10.26.38; Mon, 21 Nov 2022 10:27:12 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=TNFJxEw6; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230299AbiKUSDd (ORCPT + 91 others); Mon, 21 Nov 2022 13:03:33 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53696 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229498AbiKUSDb (ORCPT ); Mon, 21 Nov 2022 13:03:31 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2D8745CD17 for ; Mon, 21 Nov 2022 10:03:31 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id DE033B81232 for ; Mon, 21 Nov 2022 18:03:29 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 57163C433C1; Mon, 21 Nov 2022 18:03:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1669053808; bh=NPPlVNTPIt4eZj5V4vKEYND7lKQPzlo4Jgr8cU3tjk8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=TNFJxEw69uAcvtWuATMKdAwYS+zHD+dtmBA9L1isrOaa2fTZn3v7Lrur5G6PrX4NG LfHeuTyApHTnDgYJZQ4+IJwHbJU6FFXTcci6aFO9+/dAUv6gwkuVe8B9O5Q+D7+wSc D25q/T49IUKIBj2q4WmrBK+VaVab0XZWI2YgZE0bipmrm0L2+8KBeAIuWxHgpG2J3C aSstHsMaEY3bDtSruJ1DzJ/u3GX8dCD/rlFjSkasAl6ppsQpHzFBidPBIkA5QBqYps cBPNPOOkZy2iBowz6Usnnmf7yN4xJM1pjcAqDMbE9m+8ooacLpojhX03s3jDFQoIbz k6FhMWvh2KpHQ== Date: Mon, 21 Nov 2022 18:03:22 +0000 From: Will Deacon To: Naresh Kamboju Cc: open list , lkft-triage@lists.linaro.org, regressions@lists.linux.dev, Catalin Marinas , Mark Rutland , Andrew Morton , Linux ARM , Anshuman Khandual , Nathan Chancellor , Mark Brown , Anders Roxell Subject: Re: [PATCH] arm64/mm: Drop redundant BUG_ON(!pgtable_alloc) Message-ID: <20221121180321.GA7645@willie-the-truck> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Nov 21, 2022 at 09:17:18PM +0530, Naresh Kamboju wrote: > LKFT detected arm64 boot regression on today's Linux next-20221121 tag. > The Kernel boot log did not show anything on the serial console. > > Anders bisected this problem and found the subject commit is the > first bad commit. > > # first bad commit: [9ed2b4616d4e846ece2a04cb5007ce1d1bd9e3f3] > arm64/mm: Drop redundant BUG_ON(!pgtable_alloc) > > Later it was found this lore link which was already reported [1]. > > ref: > [1] https://lore.kernel.org/all/Y3pS5fdZ3MdLZ00t@dev-arch.thelio-3990X/ Yup, I've queued a revert locally and will push it out this evening. Cheers, Will