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 1E33FC636CC for ; Thu, 16 Feb 2023 02:40:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229462AbjBPCk2 (ORCPT ); Wed, 15 Feb 2023 21:40:28 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45356 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229460AbjBPCk1 (ORCPT ); Wed, 15 Feb 2023 21:40:27 -0500 Received: from cmx-torrgo001.bell.net (mta-tor-005.bell.net [209.71.212.37]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7D7AF30B2F; Wed, 15 Feb 2023 18:40:24 -0800 (PST) X-RG-CM-BuS: 0 X-RG-CM-SC: 0 X-RG-CM: Clean X-Originating-IP: [174.88.80.151] X-RG-Env-Sender: dave.anglin@bell.net X-RG-Rigid: 63EA076D00525091 X-CM-Envelope: MS4xfCh4gRp0/tCUXLg1rQI5lTkO7q5a2aciVK4znEo7vfbRqUBapF1TBSC8mgiKiP04pHhHY6BVkCC9zQ7+lN5zijofcgh7DH4pYZu4PlgKdAFiql23f87I FhApDn112kT9tqGA+DbXra3laz+EkKWAzpUuuVxAHoxNNCcaBrmNYiIhbXSe071S0Sz4YdtmycCR4MXQ1Cn3AirBI7wfSqHkDE2KAKnVpt6boIainTDb46mi H66YijEF68L4pXt64E/UtSVzphjbqFEx8iWSCvFUuWI89nN8XRhuf5BfjPlSvthnVEfSPVDkNRBBO+xYM36yAouJer7L2cT8R1ouN8XU5wkL8CkXDkT0CHv4 jUg2QW38/JoW//8NsCk4zRkt1s1elPxZnHc1AJocwQEllo3M0Yw= X-CM-Analysis: v=2.4 cv=M8Iulw8s c=1 sm=1 tr=0 ts=63ed9794 a=6Iw0JHgwQEnu+SgMJEJdFQ==:117 a=6Iw0JHgwQEnu+SgMJEJdFQ==:17 a=IkcTkHD0fZMA:10 a=FBHGMhGWAAAA:8 a=JVLGN14q-YJdKCZ9VrIA:9 a=QEXdDO2ut3YA:10 a=9gvnlMMaQFpL9xblJ6ne:22 Received: from [192.168.2.49] (174.88.80.151) by cmx-torrgo001.bell.net (5.8.814) (authenticated as dave.anglin@bell.net) id 63EA076D00525091; Wed, 15 Feb 2023 21:40:20 -0500 Message-ID: <1237dc53-2495-a145-37bf-47366ca75e71@bell.net> Date: Wed, 15 Feb 2023 21:40:20 -0500 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.7.2 Subject: Re: io_uring failure on parisc with VIPT caches To: Jens Axboe , 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> <73566dc4-317b-5808-a5a5-78dc195ebd77@kernel.dk> Content-Language: en-US From: John David Anglin In-Reply-To: <73566dc4-317b-5808-a5a5-78dc195ebd77@kernel.dk> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On 2023-02-15 6:02 p.m., Jens Axboe wrote: > This is not related to Helge's patch, 6.1-stable is just still missing: > > commit fcc926bb857949dbfa51a7d95f3f5ebc657f198c > Author: Jens Axboe > Date: Fri Jan 27 09:28:13 2023 -0700 > > io_uring: add a conditional reschedule to the IOPOLL cancelation loop > > and I'm guessing you're running without preempt. With 6.2.0-rc8+, I had a different crash running poll-race-mshot.t: Backtrace: Kernel Fault: Code=15 (Data TLB miss fault) at addr 0000000000000000 CPU: 0 PID: 18265 Comm: poll-race-mshot Not tainted 6.2.0-rc8+ #1 Hardware name: 9000/800/rp3440      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI PSW: 00010000001001001001000111110000 Not tainted r00-03  00000000102491f0 ffffffffffffffff 000000004020307c ffffffffffffffff r04-07  ffffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffff r08-11  ffffffffffffffff 000000000407ef28 000000000407f838 8400000000800000 r12-15  0000000000000000 0000000040c424e0 0000000040c424e0 0000000040c424e0 r16-19  000000000407fd68 0000000063f08648 0000000040c424e0 000000000a085000 r20-23  00000000000d6b44 000000002faf0800 00000000000000ff 0000000000000002 r24-27  000000000407fa30 000000000407fd68 0000000000000000 0000000040c1e4e0 r28-31  400000000000de84 0000000000000000 0000000000000000 0000000000000002 sr00-03  0000000004081000 0000000000000000 0000000000000000 0000000004081de0 sr04-07  0000000004081000 0000000000000000 0000000000000000 00000000040815a8 IASQ: 0000000004081000 0000000000000000 IAOQ: 0000000000000000 0000000004081590  IIR: 00000000    ISR: 0000000000000000  IOR: 0000000000000000  CPU:        0   CR30: 000000004daf5700 CR31: ffffffffffffefff  ORIG_R28: 0000000000000000  IAOQ[0]: 0x0  IAOQ[1]: linear_quiesce+0x0/0x18 [linear]  RP(r2): intr_check_sig+0x0/0x3c Backtrace: Kernel panic - not syncing: Kernel Fault Dave -- John David Anglin dave.anglin@bell.net