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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 84436C7EE2F for ; Fri, 26 May 2023 08:51:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242802AbjEZIvA (ORCPT ); Fri, 26 May 2023 04:51:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46316 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242749AbjEZIu7 (ORCPT ); Fri, 26 May 2023 04:50:59 -0400 Received: from mail-ed1-x531.google.com (mail-ed1-x531.google.com [IPv6:2a00:1450:4864:20::531]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 09F84135; Fri, 26 May 2023 01:50:58 -0700 (PDT) Received: by mail-ed1-x531.google.com with SMTP id 4fb4d7f45d1cf-510b4e488e4so759542a12.3; Fri, 26 May 2023 01:50:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1685091056; x=1687683056; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:sender:from:to:cc:subject:date:message-id :reply-to; bh=EUvWLoLJ7ecOqnvXeIvpdjcIeOwM/KgQz5/8pA9G8eQ=; b=n84NiyNjWL1xHP6179rB/rjlflDf5X2HBFQ63nbtEgqvmk9lOoFy98AwhuuOGcGLLZ sRC0lvwHR8T9j1pFRXiRzeIW7cJCYhJZUvJaYfEw7/ugrQzqpBIKVjvmZq2KsOAIbteM QSD/sC+dRhzssEexVYJLwthLIZIMQlgKerWfGQIXgVsmMgL+CFd//j+mdPSTMylWg/mN Z5SyA7v208OHyaDuH2s3qmioliEg5QOLjHPFbD154gszPG7OBzh4X0kccRieqw+uf/VF XapyyMNJWhFSON2li3VQjCVZAlLiDtmKktG3bJbh0e+81e1YPcnOB65bU4pYFbDnq+ED FN9w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685091056; x=1687683056; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:sender:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=EUvWLoLJ7ecOqnvXeIvpdjcIeOwM/KgQz5/8pA9G8eQ=; b=WPm+JRA9n/pY0RefVd8eXAHXZsiL08MfEKW34WUzAhAIp0kGDIseVeZB3X0foHrnLk F2OjAtwnJRUobVqHckvLPvjedar2recsk7DAqvmXwYI2SzOtYwiGC2bGDrijZwbwMaED ZEmmft4AclV//DJes4pat04pmeQsK5pVsFXOj58CwvihHDcmOoL3/Lh7YO1XrcbtLRIN u12TUcs08xOTBWiguxshCo+R9wLwwcSHDAqlPG5gKbqpOqEF2bFRDEukLVpLsYP5z4mx lTKHby9HcXHig/buGUZoZAYPVmCoreYW+ry5shHwYr7qskiazqrhCfljsBzt4X/Ph8Ju s9aA== X-Gm-Message-State: AC+VfDxnLDKL/1klitX+TPs+itzQAJdMMgufnV6vphyOUYbFvo+/5srn NeSteESRlv8Otn997FcXyOo= X-Google-Smtp-Source: ACHHUZ5vLWV4BA5GbUd7uTb6R3TNt35h/LrNw5FK47z6XTA7FhoAMdRuoTd1JbFzYtOHZbAJyUOY9A== X-Received: by 2002:a17:907:7e81:b0:959:6fb2:1c3b with SMTP id qb1-20020a1709077e8100b009596fb21c3bmr1366954ejc.39.1685091055982; Fri, 26 May 2023 01:50:55 -0700 (PDT) Received: from gmail.com (1F2EF43E.nat.pool.telekom.hu. [31.46.244.62]) by smtp.gmail.com with ESMTPSA id e14-20020a50ec8e000000b00509d1c6dcefsm1347783edr.13.2023.05.26.01.50.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 26 May 2023 01:50:55 -0700 (PDT) Sender: Ingo Molnar Date: Fri, 26 May 2023 10:50:50 +0200 From: Ingo Molnar To: Peter Zijlstra Cc: Stephen Rothwell , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Linux Kernel Mailing List , Linux Next Mailing List , Michael Ellerman , PowerPC Subject: Re: linux-next: boot failure after merge of the tip tree Message-ID: References: <20230524154459.48cda184@canb.auug.org.au> <20230524093454.GI4253@hirez.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230524093454.GI4253@hirez.programming.kicks-ass.net> Precedence: bulk List-ID: X-Mailing-List: linux-next@vger.kernel.org * Peter Zijlstra wrote: > On Wed, May 24, 2023 at 03:44:59PM +1000, Stephen Rothwell wrote: > > Hi all, > > > > After merging the tip tree, today's linux-next build (powerpc > > pseries_le_defconfig) failed to boot like this: > > > > Built 1 zonelists, mobility grouping on. Total pages: 32736 > > Policy zone: Normal > > mem auto-init: stack:all(zero), heap alloc:off, heap free:off > > Memory: 2027392K/2097152K available (17984K kernel code, 3328K rwdata, 14784K rodata, 6080K init, 1671K bss, 69760K reserved, 0K cma-reserved) > > > > *crickets* > > > > Bisected to commit > > > > f4ab23558310 ("slub: Replace cmpxchg_double()") > > > > I have reverted that commit (and the following one) for today. > > Sorry about that; turns out I forgot to test the case where cmpxchg128 > wasn't available. > > Please see: > > https://lkml.kernel.org/r/20230524093246.GP83892@hirez.programming.kicks-ass.net > > As stated there, I'm going to zap tip/locking/core for a few days and > let this fixed version run through the robots again before re-instating > it. Note to -next, this should now be resolved in the tip:auto-latest branch. Thanks, Ingo