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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4585BEB64D8 for ; Thu, 22 Jun 2023 12:55:38 +0000 (UTC) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=ellerman.id.au header.i=@ellerman.id.au header.a=rsa-sha256 header.s=201909 header.b=EUKbw71g; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4Qn0j43F7mz3bYQ for ; Thu, 22 Jun 2023 22:55:36 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=ellerman.id.au header.i=@ellerman.id.au header.a=rsa-sha256 header.s=201909 header.b=EUKbw71g; dkim-atps=neutral Received: from gandalf.ozlabs.org (mail.ozlabs.org [IPv6:2404:9400:2221:ea00::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4Qn0h40zHRz30Cg for ; Thu, 22 Jun 2023 22:54:44 +1000 (AEST) 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 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-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-mm@kvack.org, linuxppc-dev , Stephen Rothwell Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" 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