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 1F2DFC433F5 for ; Thu, 19 May 2022 21:42:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245363AbiESVmZ (ORCPT ); Thu, 19 May 2022 17:42:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35364 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244755AbiESVmH (ORCPT ); Thu, 19 May 2022 17:42:07 -0400 Received: from mail-ot1-x335.google.com (mail-ot1-x335.google.com [IPv6:2607:f8b0:4864:20::335]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E6B70107893 for ; Thu, 19 May 2022 14:41:58 -0700 (PDT) Received: by mail-ot1-x335.google.com with SMTP id w19-20020a9d6393000000b0060aeb359ca8so1008305otk.6 for ; Thu, 19 May 2022 14:41:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=sender:message-id:date:mime-version:user-agent:content-language:to :cc:references:from:subject:in-reply-to:content-transfer-encoding; bh=CpuiHu6st5jvRyMaG9VX7RMBtuAsBPj44JQMGd55xSk=; b=X1FGonc0itVjTaJy5AqOZm4ZPWMp6o//luJ4v+XTffdBLPZrA1yullEKYrYVTwSLo3 1TK+BNFnpUwv1gFLulhTKSZfr/5MIgaqTHBHya7aH4f64OqcYFI9UARAqZnkjjAq2fjQ XHJ1bWtRjdwOJL/jPAredUfs5ZGMzP0parqGKOQJ1hukOGUrww/Jx+ttLyJ7ce9u8aDV gwG8WgOBlcQuOMOgIBiQKSuvyFhxiGHMTOJkGZWALAncZrzLeLH0C5L8tVpuzJdavhmX PK7jQz3jbvgevAa4kyujYNTX7ZfCHzIBSL0rkiBVfBBxacwcVnT6zercCqaKtAiWlKCl iJgQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:sender:message-id:date:mime-version:user-agent :content-language:to:cc:references:from:subject:in-reply-to :content-transfer-encoding; bh=CpuiHu6st5jvRyMaG9VX7RMBtuAsBPj44JQMGd55xSk=; b=vQgWGYbCjm4OEMLQcnS3BPeLf1B62r633KfzWn33oVrLzW09/PigmjP+V0Mc0cK2D+ 12lq8GQyBQyNYU4XCwEK8dIF92rs3XKeIhDBAvIxhiNX7JnIM+4/F27IPTBppTVKXl+y +GBhnTSU2oREQQOrbrwxR81jYN373Xsou/xbmQ/rY9owHE5js3Wly0SUsVkyeBBW9Rjc xzuS0iM9vKLadmxJ8x75DmNyQEV7ExwWLvgI+thb0W2JSiLWhAz3kThM2UJZ4k8lA2Yz O7g25nU/kmjYpEvdzmRvNZkeza6c2FEeYBIufXlC9bRD6g9mbA1X/IJPgOJlkg7t8BCR QKBQ== X-Gm-Message-State: AOAM5311JyR86XsjX6gVVBkrKOpkJZDr6/h+DE506XZNoycYnoeAggb8 e08LsXnwV52HDsxiGZeZ8/8= X-Google-Smtp-Source: ABdhPJwBml8d2YJQucekuCRaj6PIzvGEkJuWAcNUSWUvgdv8zUnJWbUcTHb2lE59ASNYwXO9JZWlAg== X-Received: by 2002:a05:6830:310c:b0:606:66c8:53d4 with SMTP id b12-20020a056830310c00b0060666c853d4mr2686287ots.129.1652996518130; Thu, 19 May 2022 14:41:58 -0700 (PDT) Received: from ?IPV6:2600:1700:e321:62f0:329c:23ff:fee3:9d7c? ([2600:1700:e321:62f0:329c:23ff:fee3:9d7c]) by smtp.gmail.com with ESMTPSA id t187-20020aca5fc4000000b00325cda1ffb4sm188141oib.51.2022.05.19.14.41.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 19 May 2022 14:41:57 -0700 (PDT) Sender: Guenter Roeck Message-ID: <28f3958f-dd25-cb1a-0a4c-040e7706ffc7@roeck-us.net> Date: Thu, 19 May 2022 14:41:55 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.1 Content-Language: en-US To: Liam Howlett Cc: Heiko Carstens , Sven Schnelle , Andrew Morton , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" References: <20220428172040.GA3623323@roeck-us.net> <20220513165955.mkg5wvfi4dwpzoer@revolver> <20220519143541.dfzgoubmkboc6kk4@revolver> From: Guenter Roeck Subject: Re: [PATCH] mapletree-vs-khugepaged In-Reply-To: <20220519143541.dfzgoubmkboc6kk4@revolver> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 5/19/22 07:35, Liam Howlett wrote: > * Guenter Roeck [220517 10:32]: > > ... >> >> Another bisect result, boot failures with nommu targets (arm:mps2-an385, >> m68k:mcf5208evb). Bisect log is the same for both. > ... >> # first bad commit: [bd773a78705fb58eeadd80e5b31739df4c83c559] nommu: remove uses of VMA linked list > > I cannot reproduce this on my side, even with that specific commit. Can > you point me to the failure log, config file, etc? Do you still see > this with the fixes I've sent recently? > This was in linux-next; most recently with next-20220517. I don't know if that was up-to-date with your patches. The problem seems to be memory allocation failures. A sample log is at https://kerneltests.org/builders/qemu-m68k-next/builds/1065/steps/qemubuildcommand/logs/stdio The log history at https://kerneltests.org/builders/qemu-m68k-next?numbuilds=30 will give you a variety of logs. The configuration is derived from m5208evb_defconfig, with initrd and command line embedded in the image. You can see the detailed configuration updates at https://github.com/groeck/linux-build-test/blob/master/rootfs/m68k/run-qemu-m68k.sh Qemu command line is qemu-system-m68k -M mcf5208evb -kernel vmlinux \ -cpu m5208 -no-reboot -nographic -monitor none -append "rdinit=/sbin/init console=ttyS0,115200" with initrd from https://github.com/groeck/linux-build-test/blob/master/rootfs/m68k/rootfs-5208.cpio.gz I use qemu v6.2, but any recent qemu version should work. Hope this helps, Guenter