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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 00A98C433F5 for ; Fri, 22 Oct 2021 09:10:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D999C60F43 for ; Fri, 22 Oct 2021 09:10:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232460AbhJVJNB (ORCPT ); Fri, 22 Oct 2021 05:13:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38940 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232060AbhJVJNA (ORCPT ); Fri, 22 Oct 2021 05:13:00 -0400 Received: from mail-ed1-x534.google.com (mail-ed1-x534.google.com [IPv6:2a00:1450:4864:20::534]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6330BC061764; Fri, 22 Oct 2021 02:10:43 -0700 (PDT) Received: by mail-ed1-x534.google.com with SMTP id u13so1034185edy.10; Fri, 22 Oct 2021 02:10:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=message-id:date:mime-version:user-agent:subject:content-language:to :references:cc:from:in-reply-to:content-transfer-encoding; bh=P6jDog9aGxRaFIsyIUOXH5bsPwrCpSO2aM+bugPoS5U=; b=BgmeNdGonvO83jDYphBBuB7X24UY15U4zDGDDcjVz/6x30II/biCBrYw08YkZPMji/ kxParE3DOhd9Yi3NNAU/CSTqJ6ltPyJsqvgNZGVnDHxPBjg/3XufvkpOuECAHcf9tp9C IMsqqFPTwPsHgaOsU5ghPKSdvRuEOvWbUEyzMtcQV8IyE5fkkz5s+aI33h6XTCIQjJXn 9MPTOLKb48LJwRmfryjaypGgRhvoSyRaQRk2AWC1OSJoxY0xT03TQj3AiMJbIgnpb522 ACYnPtUB3o9kqPNTcvL0v+A4hSmsU/uHaDB6iWoKp2GU0la3L8T6YUkAmhocyTk+iMUB 4B+A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:references:cc:from:in-reply-to :content-transfer-encoding; bh=P6jDog9aGxRaFIsyIUOXH5bsPwrCpSO2aM+bugPoS5U=; b=l5KjeZjmZnuN1RyaVaDgMDM7euH+0SFn2uNG9Etuq1FchMEUlwjZzlKHoCWDQUNi2D lhssCFDso5bI0UESxHNZB+m6OnI9bB5VE/Tn28pKWuaPUY1PhMHZdGGP21nltK6YIJY1 rHz9sOdgD9HgCTk+tIxqYsJHEq0APFge+hBUKjEWVNxbd75E3HY3f9DWSoYQUqWK58fT JlA7sQ97oQ1yirp2UPNnEfdtMOTJPLh7QOHFtffd4GOJ9v8riJc2hUAMPa6ZGL6XQoB5 i2nPiUAYvwdwAEib6SSIx1zaLQeVOOr5E3waHqef4g/ciHONx1Nm3YjBQoD9H6z8TR5R I5JQ== X-Gm-Message-State: AOAM533Tzee/eadTpk/Z1bmIvvw1vb174E0SC2W5dlSZu8phqRfJpion Gj07H1JDO9lv88i8W9iYOT8= X-Google-Smtp-Source: ABdhPJy//JuJ99iNpcHrHxfk0EphY5E8T+oO0hQwIzzQeAbl2rkJlQ9NbfsX00ig6PF++uOugjtLEg== X-Received: by 2002:a50:f09c:: with SMTP id v28mr13927010edl.360.1634893841999; Fri, 22 Oct 2021 02:10:41 -0700 (PDT) Received: from [192.168.8.198] ([148.252.133.195]) by smtp.gmail.com with ESMTPSA id u18sm4046521eds.86.2021.10.22.02.10.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 22 Oct 2021 02:10:41 -0700 (PDT) Message-ID: <77f9feaa-2d65-c0f5-8e55-5f8210d6a4c6@gmail.com> Date: Fri, 22 Oct 2021 10:10:45 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.2.0 Subject: Re: uring regression - lost write request Content-Language: en-US To: Daniel Black , linux-block@vger.kernel.org References: Cc: io-uring@vger.kernel.org From: Pavel Begunkov In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On 10/22/21 04:12, Daniel Black wrote: > Sometime after 5.11 and is fixed in 5.15-rcX (rc6 extensively tested > over last few days) is a kernel regression we are tracing in > https://jira.mariadb.org/browse/MDEV-26674 and > https://jira.mariadb.org/browse/MDEV-26555 > 5.10 and early across many distros and hardware appear not to have a problem. > > I'd appreciate some help identifying a 5.14 linux stable patch > suitable as I observe the fault in mainline 5.14.14 (built Cc: io-uring@vger.kernel.org Let me try to remember anything relevant from 5.15, Thanks for letting know -- Pavel Begunkov