Received: by 2002:a05:6358:51dd:b0:131:369:b2a3 with SMTP id 29csp309449rwl; Wed, 9 Aug 2023 15:07:29 -0700 (PDT) X-Google-Smtp-Source: AGHT+IH8G/bnLX8Y42AV9ndnGcEH3v7lhjTyYxPfbTxrT7oSGyYHrCUvqE14xjr2WMejiWZsCI9r X-Received: by 2002:a17:902:ab82:b0:1bb:891b:8bd with SMTP id f2-20020a170902ab8200b001bb891b08bdmr411380plr.34.1691618849257; Wed, 09 Aug 2023 15:07:29 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1691618849; cv=none; d=google.com; s=arc-20160816; b=WUJlmCnyw4ArZcMD7BkCgYYIfQWA589dvVHQxlM7lTCIVjKHGL6/qpw4qMdah/60um fuv8ZBBaBPBiYPLfG930DEIHRvPFvYoJebx6rXanmfN4URfIIwPhUTM4E4z5IjWwtc+O 08myXv4YdOJRMii3iFR+CSBhVHzmyFOQHm27HnEDo6EEDuA++gkzlinl+Gho4vILPBtp u/HyR69n/hLhQ/dX/0x0uOwev9F+Z2HB9gzexFAxce4QCjrdkDhLrb0apVOXWjuyLYoQ X7+7YOj3xibR1KQrZyCKdW2GyvBxLWCalkxuSvNX6IIGnO1PZtrobJeCbnLCeABhgiAU saHQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-transfer-encoding :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=pElDSb1pbGhv/vrv/Ki41mUj2sFjUhm7mHe9zK6ljd4=; fh=zFLBRxh9NHIgCoEg7wdZUzdJ5mNZZH5/OTbzC9oyne4=; b=BimWhc9RwvbAgvChFR/ObQOYJ65koFbJCLQuz/9/jDUqeNq5VedHeXzwMewrTLY35V Rbb7SRrRWhhEygI/yLnDmC/Y2Ktpn6W/tA18/s+dGgIqLZC/+heH4G/GCXeiRMJMeh6B DOr+Mpuw8eHG3q8mGaF3ZzrfKECfzVgxjkAuy9U0tD1eyE30uWqwVpa8XrvMEAUXHCwN 904RC/lfHQ4AZozWo1p7LhcOhraaNhsXpLRJ1RHusGmI7udVmVNVbb48D6BCWxOnHiT/ Zt2pGNgtTADmRYZ0uWk/50GyUWO4OKZ1IShMh0Y62qzoMCCuowJifiEBqWiJ1aGb8CCH iC2A== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@t-8ch.de header.s=mail header.b=XvZfkAWG; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id u8-20020a17090341c800b001bc11c02ae9si54239ple.517.2023.08.09.15.07.17; Wed, 09 Aug 2023 15:07:29 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@t-8ch.de header.s=mail header.b=XvZfkAWG; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232513AbjHIVHQ (ORCPT + 99 others); Wed, 9 Aug 2023 17:07:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35406 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229472AbjHIVHP (ORCPT ); Wed, 9 Aug 2023 17:07:15 -0400 Received: from todd.t-8ch.de (todd.t-8ch.de [IPv6:2a01:4f8:c010:41de::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 751451BCF for ; Wed, 9 Aug 2023 14:07:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=t-8ch.de; s=mail; t=1691615231; bh=TczaNzCCWInwxTWH9BEieH6YTfWb9w0jqfVznd0qGhY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=XvZfkAWGJozPowH8xPqnsYyuM7miVuqwf5AasON8orjw5/xMFB2ln+xIn/f4ik8TY pjDXaWjCSAWuk9evqfHq41sK2yUEMY8i3If9x0fa5i7MXYxMYhUlK+ZEPEbHNcSZ3B ygoHn9wJz7noVl7ThMTu0jNjurUqfmzV6sz4KS1I= Date: Wed, 9 Aug 2023 23:07:10 +0200 From: Thomas =?utf-8?Q?Wei=C3=9Fschuh?= To: Toralf =?utf-8?Q?F=C3=B6rster?= Cc: Linux Kernel Subject: Re: few dozen pollfress.t segfaults messages in system log Message-ID: <0072e883-1c09-4a8d-86f8-a3de26b18b1e@t-8ch.de> References: <5890bdee-ead3-a5c9-46e0-7abb7de1fb15@gmx.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <5890bdee-ead3-a5c9-46e0-7abb7de1fb15@gmx.de> X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2023-08-09 21:45:57+0200, Toralf Förster wrote: > I got a bunch of > > $ grep pollfree messages > Aug 9 02:10:14 mr-fox kernel: pollfree.t[18582]: segfault at 10b ip > 0000563c9619b373 sp 00007f69511a2eb0 error 4 in > pollfree.t[563c9619a000+3000] likely on CPU 14 (core 14, socket 0) > Aug 9 02:10:14 mr-fox kernel: pollfree.t[18594]: segfault at 10b ip > 0000563c9619b373 sp 00007f69511a2eb0 error 4 in > pollfree.t[563c9619a000+3000] likely on CPU 4 (core 4, socket 0) > Aug 9 02:10:14 mr-fox kernel: pollfree.t[18597]: segfault at 10b ip > 0000563c9619b373 sp 00007f69511a2eb0 error 4 in > pollfree.t[563c9619a000+3000] likely on CPU 11 (core 11, socket 0) > Aug 9 02:10:14 mr-fox kernel: pollfree.t[18601]: segfault at 10b ip > 0000563c9619b373 sp 00007f69511a2eb0 error 4 in > pollfree.t[563c9619a000+3000] likely on CPU 26 (core 10, socket 0) > > last night with kernel 6.4.9 at a stable hardened Gentoo Linux: > > Linux p14s 6.1.44 #34 SMP Tue Aug 8 21:43:00 CEST 2023 x86_64 AMD Ryzen > 7 PRO 6850U with Radeon Graphics AuthenticAMD GNU/Linux > > I do wonder if those messages are related to the host kernel or if they > are coming from a buggy app within one of the images of the build bot I > do run at that machine ? Probably from the "pollfree" test of liburing [0]. Thomas [0] https://github.com/axboe/liburing/blob/master/test/pollfree.c