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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id B1BEFEB64D8 for ; Thu, 22 Jun 2023 12:54:51 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 173F38D0002; Thu, 22 Jun 2023 08:54:51 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 124208D0001; Thu, 22 Jun 2023 08:54:51 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 012A18D0002; Thu, 22 Jun 2023 08:54:50 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id E5D6F8D0001 for ; Thu, 22 Jun 2023 08:54:50 -0400 (EDT) Received: from smtpin18.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id B5FC61A013B for ; Thu, 22 Jun 2023 12:54:50 +0000 (UTC) X-FDA: 80930378340.18.7FABD44 Received: from gandalf.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) by imf04.hostedemail.com (Postfix) with ESMTP id 23D6940015 for ; Thu, 22 Jun 2023 12:54:47 +0000 (UTC) Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=ellerman.id.au header.s=201909 header.b=EUKbw71g; spf=pass (imf04.hostedemail.com: domain of mpe@ellerman.id.au designates 150.107.74.76 as permitted sender) smtp.mailfrom=mpe@ellerman.id.au; dmarc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1687438489; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=1uqAqd7E1mYRn4Hw08gznafI4P/jkHGbir/cHIP+J0c=; b=aGw3uZs09avimXeoBtuOsBK+VQdQ+UmRTTpNGk3rhN74tfGxaRI2+1kFg6i99BgbQFJa+E cSn2hUzarvBO8A5yIrOmZHUl3iGVDzfMMsjCwxY4AnCrJ7McKDoAlPCi+YcRPMLV3lYIhE +WzXwaFaHAIQ/p4/t5lSeVX2VQaP/ds= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1687438489; a=rsa-sha256; cv=none; b=syasVbWQiN4e97DOdr2l1RXM9qqC2rv5yr0zbkNu+i9HwTjN9F/ZWeowmYauY6Mm1S2MhH osh6NzEmwI8TL36fVJDZ5pXmJ5enCooSagFb+QkdOtT9pkNbaQN8zPI945HtyCLrZocBng h7toaCBnfmdc2wBBaHuLzDlBOcDBALg= ARC-Authentication-Results: i=1; imf04.hostedemail.com; dkim=pass header.d=ellerman.id.au header.s=201909 header.b=EUKbw71g; spf=pass (imf04.hostedemail.com: domain of mpe@ellerman.id.au designates 150.107.74.76 as permitted sender) smtp.mailfrom=mpe@ellerman.id.au; dmarc=none Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4Qn0h26KQPz4wjC; Thu, 22 Jun 2023 22:54:42 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ellerman.id.au; s=201909; t=1687438484; bh=1uqAqd7E1mYRn4Hw08gznafI4P/jkHGbir/cHIP+J0c=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=EUKbw71gyLzEoTX4SMGZPeTH77XsfNUB7NtwNtJTixOoCVJCNB7SFdue96RoJ9UKo BpKh1xEcXyWYsQ9CPeh4vOOOfqx3L/Blom/09DWgwR8RYJ8FuMl/ZG/+/dzGDxKr4U j1c9mHvNlJ0ZI980ZaFLLqXbmtVjYSthZN6XB5lEG0GF7Hr591Pq6zDB/1NnnRfXPc 4d6UPjkGFW2rhdksG56eBXwaCxKGsYj/QyMa+XxLJig8oF5b1L3MMrC8wMFETbjBY3 YnUFRn6fBZg0qkAgpCMk9FQl/T/eLoypFkXRF0wMtj6sD0OOTB1X5YUMJKUwEXG+bi 4rq/w36aIN38g== From: Michael Ellerman To: Sachin Sant Cc: linux-mm@kvack.org, linuxppc-dev , Stephen Rothwell Subject: Bad linux-next merge? (was Re: [6.4.0-rc7-next-20230620] Boot failure on IBM Power LPAR) In-Reply-To: <568F6E65-DBDF-43F2-8B3E-E783AE5A2B6C@linux.ibm.com> References: <87edm5pj4u.fsf@mail.lhotse> <568F6E65-DBDF-43F2-8B3E-E783AE5A2B6C@linux.ibm.com> Date: Thu, 22 Jun 2023 22:54:42 +1000 Message-ID: <87jzvvodwt.fsf@mail.lhotse> MIME-Version: 1.0 Content-Type: text/plain X-Stat-Signature: yeghsaujc6i6f6tf18azn8jw9s84qqtq X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 23D6940015 X-Rspam-User: X-HE-Tag: 1687438487-878276 X-HE-Meta: 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 fzw1jfM8 tmjt30xPJY5DG1S3P2EbaMXlHa/PpuAkSvnxRvhqsr6ofok5xgf7V9Fq+OCA134r8W7IkYuBTyuTbVDELG7CDdhRk+EdBhRFfGaefrraVe9aE0qGIvnv6PfpeOpUv3p4el4vdOciVFrvdByNarlNjTNbQpUFraqy/URFct9f2tooGuIQlJjU0Y8t+VLLNJD+JKCxde0B6/rA64ytYYxqPzNvPLjIYrJ3KR42eO56kQYAtjBS+TfduaWmK4t2Npdne7a0L+KsM2Ceqxic/+gdZHeImQQ== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000025, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Sachin Sant writes: >>> The problem was introduced in 6.4.0-rc7-next-20230619. I tried git bisect, but unsure of the >>> result reported by it. Bisect points to following patch >>> >>> # git bisect bad >>> 70c94cc2eefd4f98d222834cbe7512804977c2d4 is the first bad commit >>> commit 70c94cc2eefd4f98d222834cbe7512804977c2d4 >>> Merge: 48f5ee5c48c3 3fe08f7d5e80 >>> Author: Stephen Rothwell >>> Date: Tue Jun 20 09:43:25 2023 +1000 >>> >>> Merge branch 'mm-everything' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm >>> # Conflicts: >>> # mm/mmap.c >> >> Usually bisect pointing to a merge means something has gone wrong with >> the bisect. It's not impossible for a merge to be the cause of a bug, >> but IME it's rare. > > I have tried the bisect 3 times and the result was same. It always > points to this merge commit. > > Is there anything else I can try to help debug this issue? Looks like it's been reported, debugged and fixed over here: https://lore.kernel.org/linux-next/20230619204309.GA13937@willie-the-truck/ So it should be resolved in today/tomorrow's linux-next hopefully. cheers