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 799D6C6379F for ; Wed, 15 Feb 2023 23:03:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229612AbjBOXD5 (ORCPT ); Wed, 15 Feb 2023 18:03:57 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57526 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229965AbjBOXDx (ORCPT ); Wed, 15 Feb 2023 18:03:53 -0500 Received: from mail-pj1-x1029.google.com (mail-pj1-x1029.google.com [IPv6:2607:f8b0:4864:20::1029]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 601BF1B305 for ; Wed, 15 Feb 2023 15:03:28 -0800 (PST) Received: by mail-pj1-x1029.google.com with SMTP id fu4-20020a17090ad18400b002341fadc370so3955482pjb.1 for ; Wed, 15 Feb 2023 15:03:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:in-reply-to:from:references:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=LN17kd7Q9pNcfHh7RML7V2xH03z9kn06iimOAXPvJdM=; b=RNhyVNIDm75QJZJrEwlK38I+ZwG32NeKs19kvmaWTRp9yO32azz72R4UiDKJRub4GO AVunIcoSBIozizkxt+Ev6tRrOWXc+7R7k1dImXR8mFYiBH3KZIrm99E7bb8M/P4zbzZc hjLK7zzv9PUsVA5AXPFH+kTVfQ+D4uVFLCfiJJPC6EpgoxhoR3w3PzKAvsHIkESmzMSP 9cHIwSOKsKJ/9Y1WwG8thMJYgP0DwpDZg68cL8ibc/QRDhAFpdFPbpQCInIi/oVsq6oA Ws/DWBlkXWwrmeVHWYKPUmD/konUYFh+CExT5B3J2aup1k2UvARJVClA8HkWqZoGkOJ8 5SKw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:from:references:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=LN17kd7Q9pNcfHh7RML7V2xH03z9kn06iimOAXPvJdM=; b=tXjn4MC2HIADhxwIMA24ahQGLSM3eSJaHqyg5u0rsDcqWiJafO/VlivfQHF25eN2et 66lb55SsMo407fKfmKX9fnTjzDbSMv8Kki9WuGEL02MQ4rxDg59HFrjDJFcnFFfUvA1T +SWcB9QRLE238/j9btM+OmKkmJfgO9XrtSaQJtgEA4qVzPTTehy2UNr7KNAbifNhVmMG Jt/Z855M8JvTwMTqXBCo26pR6vFSwc0XGBO+L7wS2CgTALK2gSQ8GY/oKjvGBBpGNu3p Ccs1swWB76BwPXOGVxaoinHAqNsonUieMo/beccjqa5pz7Bfyqhr2hGKRTFJutm5djdK Jsxw== X-Gm-Message-State: AO0yUKXOCk8Mg2z0IglxcYJ8nuJ3D9RzuQTKCdZhRbtZ4Dv6YhHs1hrY 7DNDPhB2U7WYr2jHq5OMd/LAJw== X-Google-Smtp-Source: AK7set/Qv3qUbJadHKXmM956tnL8K1TQYL5Fqaqa/7EvqT7vIkHu/uhgizLr3RVtNSZ7o6hypQOfnQ== X-Received: by 2002:a17:903:1c9:b0:196:3f5a:b4f9 with SMTP id e9-20020a17090301c900b001963f5ab4f9mr4841507plh.1.1676502207767; Wed, 15 Feb 2023 15:03:27 -0800 (PST) Received: from [192.168.1.136] ([198.8.77.157]) by smtp.gmail.com with ESMTPSA id c13-20020a170902c1cd00b0019ab58f47a6sm4148560plc.105.2023.02.15.15.03.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 15 Feb 2023 15:03:27 -0800 (PST) Message-ID: <7c25d3c0-f3d8-f474-1662-f92f03b95be6@kernel.dk> Date: Wed, 15 Feb 2023 16:03:26 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux aarch64; rv:102.0) Gecko/20100101 Thunderbird/102.7.2 Subject: Re: io_uring failure on parisc with VIPT caches Content-Language: en-US To: John David Anglin , Helge Deller , io-uring@vger.kernel.org, linux-parisc@vger.kernel.org, James Bottomley References: <006e8db4-336f-6717-ecb0-d01a0e9bc483@kernel.dk> <626cee6f-f542-b7eb-16ca-1cf4e3808ca6@bell.net> <5f02fa8b-7fd8-d98f-4876-f1a89024b888@kernel.dk> <2b89f252-c430-1c44-7b30-02d927d2c7cb@gmx.de> <0bfe6cdb-2749-c08d-a1b2-ef46fed1ded3@bell.net> <07810314-94f6-0e9a-984b-0a286cbb59d3@kernel.dk> <4f4f9048-b382-fa0e-8b51-5a0f0bb08402@kernel.dk> <99a41070-f334-f3cb-47cd-8855c938d71f@bell.net> <5e72c1fc-1a7b-a4ed-4097-96816b802e6d@bell.net> From: Jens Axboe In-Reply-To: <5e72c1fc-1a7b-a4ed-4097-96816b802e6d@bell.net> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On 2/15/23 2:39 PM, John David Anglin wrote: > On 2023-02-15 4:06 p.m., John David Anglin wrote: >> On 2023-02-15 3:37 p.m., Jens Axboe wrote: >>>> System crashes running test buf-ring.t. >>> Huh, what's the crash? >> Not much info.  System log indicates an HPMC occurred. Unfortunately, recovery code doesn't work. > The following occurred running buf-ring.t under gdb: > > INFO: task kworker/u64:9:18319 blocked for more than 123 seconds. >       Not tainted 6.1.12+ #4 > "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. > task:kworker/u64:9   state:D stack:0     pid:18319 ppid:2 flags:0x00000000 > Workqueue: events_unbound io_ring_exit_work > Backtrace: I don't think this is buf-ring, it's off the exit path which is offloaded and most likely related to your iopoll report. -- Jens Axboe