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 5A555C77B7F for ; Thu, 11 May 2023 17:37:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238035AbjEKRhE (ORCPT ); Thu, 11 May 2023 13:37:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36448 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238452AbjEKRhD (ORCPT ); Thu, 11 May 2023 13:37:03 -0400 Received: from mout.gmx.net (mout.gmx.net [212.227.17.20]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4CAB165B4 for ; Thu, 11 May 2023 10:36:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.de; s=s31663417; t=1683826546; i=deller@gmx.de; bh=APZhjLF9mod3j9ntIwszQATnZm6cFG6DYbfw9hK+sU0=; h=X-UI-Sender-Class:Date:Subject:To:References:From:In-Reply-To; b=IiK2VMXImZmPPBRoEUUg0QzZ4NCo1mZumA3WfF+GliGjr22Oty7zZ/DQEaDD87eNS MZXC9F/xPQU8UPPO3PYfCKxVIU/RQWhXZXN1+14Gt+i2xTW/9PLic3rpWErVwWAPbX ViH/bc6++1AQvLp1YhHNPiLZaP2AafXtS5f+aekV/NxjzMC8Qi0ACJE02xHTgvH5+I ERd7sqVl0QXNRhFHerzEw62XQWbjg2sxNZHXLRjuBay9uvUZMJ9mNL1fqBAlU4W7L6 G5PvCv/fftA6wxfbjCojLKYhsln4964KxmP6J/L0tlB4YAL++f1wC50kzsHNsGYHEI 0cTZpJ7i8hOsQ== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from [192.168.20.60] ([94.134.146.253]) by mail.gmx.net (mrgmx105 [212.227.17.168]) with ESMTPSA (Nemesis) id 1Ml6qC-1qby862Jxc-00lRN3; Thu, 11 May 2023 19:35:46 +0200 Message-ID: <85aef102-8407-68c7-2dc2-87e5a866906b@gmx.de> Date: Thu, 11 May 2023 19:35:46 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0 Subject: Re: Regression with kernel 6.3 "kernel BUG at include/linux/swapops.h:472!" Content-Language: en-US To: Christoph Biedl , linux-parisc@vger.kernel.org References: <1683740497@msgid.manchmal.in-ulm.de> <8889a75f-1a81-905e-8bc4-a733de32985f@gmx.de> <1683825030@msgid.manchmal.in-ulm.de> From: Helge Deller In-Reply-To: <1683825030@msgid.manchmal.in-ulm.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:9gmnXuGyjsk//qiXVWwpQQNW1BI5X/1u3gISjGwIoySeLAiNkX1 l79kAEEyfRX7BhdIagKJY6Dkz2K9Thz7WIIX5qnZxQvQpeR81PSmgYswraJvYIrK2O++5va k0O0qHBI1EMnSo0HsqHdHHe4i0cK/lvNAjMafb2rt5U9mmmUDICrKO8JCrFidCqAeEsPoRO 2bdPoMbM4ykDBVa4e88ew== UI-OutboundReport: notjunk:1;M01:P0:TLkSCZxgoK8=;iRaKV3DXG5oY0sM10+ZZTYNHY76 lD3nGIOIQtf+UsDLDDT3IZBlxjxglT1CNVfldCMKP3IKC5KZ8t3sr1BA7DBLkRfCFj0U7OjX4 rqvhFALab2I4Os4LcVSQGWUjaqS649uoiz4BwR/b4Sxzd+1FKIIX7r/MKBuZW7HMXJ8B8Phxs SNEtL43SbZJWvnfBhOiwRJDyJs26ers2KjiMnsHazWeBZwOGHrNd/EuxRB6tp5O5C1vKZxVi4 OC7JlB8FeJmkXxkDOpVd0wtLXHt0pUsBhIEIswNcwUdGahA0UDrTR4yQ72Bw8ot/WkXLbfiN7 +sySS65oOGACMEhX1jbpA9lKQs7Wet9hV628iJ3HV+mlwW+rUGBBDyfDxBl0CAVqSY1zWYzW1 vMH6Yvu8e9e0mGEM6pmJ7t8pPDoDV5wE0oioBD5sVLjLyaUawGLlDIrW5W4eoM6RcVLg8ytZg KKdGuD5lDVoOA+nrdso6nKAlEot20IpiD2xTCzxU9Tk2QQLRTj1jUxnHSU+Ve7zRsK5rXqw2f sjK2YINeBuNdMsNSfBWitMmh2gVGM9uNjTCjTAWy5KA/VX+2XBiJA8kWI8hSqbs0X57Q19e2S 5osEywB/QQR8oDxihgqfKvgkFU0yn2OTWXtyQvtsjFcF4hVSiaQXOuYDxRMzyln2dZbK0ROWl 6Sfx4aFRMfqM5aDCqn000MIY1qqD8tSn0YPmkIyyYUTDclDrOLraEIUTNWzyzwV2UqHgLD2zS wqfigntdnZy1mWkT5WtodlP0Y2A0+ok6OfUKzjueS4IeIBaftHr4ksJNQO3hyWmFtiA4zKRlO g3znQg7aeO+VWUIT0DrsRsYUUScskChZUOJwCNOvePAHvRZAZXqodGy3Mpat+k1xyI17oWtnB dV8kzZkbQncWqPi5YebK/sHA+ZMWHs873Ml406pWViv3PVErdPAIPq5IZZZSOgj350tmR1nI8 sddRSw== Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org On 5/11/23 19:22, Christoph Biedl wrote: > Helge Deller wrote... > >> I haven't used kernel 6.3 much yet, but the kernel BUG below seems >> to be triggered by CONFIG_MIGRATION. >> You could try to disable that config option first to verify if >> it fixes your crash. >> This might help to narrow down the problem.... > > Looks good, still have a running system after 45 minutes, never got that > far with the initial kernel configuration. Good! > In the meantime I realized only some 16 commits between v6.2 and v6.3 > affect arch/parisc. Do you think it's worth check right around those? Don't think so. Very unlikely is this one: commit 88d7b12068b95731c280af8ce88e8ee9561f96de highmem: round down the address passed to kunmap_flush_on_unmap() > Also, if you can think of a way to trigger the crashes, that would ease > the testing a lot. Since you run the 32-bit kernel, huge-pages are not involved as they aren't available in the 32-bit kernels. So I think swapping is triggering it. You could try to find a test program which triggers swapping, e.g. LTS tes= tcases? Another test could be to enable CONFIG_MIGRATION again and disable all swap spaces and see if it survives. Helge