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 X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A8C0FC2B9F4 for ; Tue, 22 Jun 2021 07:35:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 86C1F6101D for ; Tue, 22 Jun 2021 07:35:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229702AbhFVHh0 (ORCPT ); Tue, 22 Jun 2021 03:37:26 -0400 Received: from vulcan.natalenko.name ([104.207.131.136]:59530 "EHLO vulcan.natalenko.name" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229574AbhFVHhZ (ORCPT ); Tue, 22 Jun 2021 03:37:25 -0400 Received: from spock.localnet (unknown [151.237.229.131]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by vulcan.natalenko.name (Postfix) with ESMTPSA id 6D68AAF0331; Tue, 22 Jun 2021 09:35:08 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=natalenko.name; s=dkim-20170712; t=1624347308; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=VQY43XfF1eGOpJRIeL+dJv5ARRW165CgSB5vjpwXo2s=; b=Gec3eyTte4Wcs6813cr1LrK6cr43dH8FrYi9m8eETh9PynloTYNjLcYsBFtXLYkyWxtJX9 XjtbKl2fykFNFJLxeZTUfG4uhZZ19mBilGu86xwpkVlxj4/cH9v/qrbdd3Nslib4sPP+7R 9nYnQvhDI83w3vzHBlDoFiJl6H+SWa4= From: Oleksandr Natalenko To: Paolo Valente Cc: Jens Axboe , linux-block , Linux Kernel Mailing List , Luca Mariotti , Holger =?ISO-8859-1?Q?Hoffst=E4tte?= , Pietro Pedroni , Piotr Gorski , Khazhy Kumykov , Jan Kara Subject: Re: [PATCH FIXES/IMPROVEMENTS 0/7] block, bfq: preserve control, boost throughput, fix bugs Date: Tue, 22 Jun 2021 09:35:05 +0200 Message-ID: <8003699.Qy64SzLKsf@spock> In-Reply-To: <2CDC43F9-9CD9-4F7F-BD36-CCEB168B5245@linaro.org> References: <20210619140948.98712-1-paolo.valente@linaro.org> <3533087.dJKXTdksHR@spock> <2CDC43F9-9CD9-4F7F-BD36-CCEB168B5245@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Hello. On =C3=BAter=C3=BD 22. =C4=8Dervna 2021 9:08:43 CEST Paolo Valente wrote: > CCing also Jan and Khazhy, because in your commit log I see also the > commit on bfq_requests_merged(). >=20 > Is this OOPS reproducible for you? No, I haven't found a reproducer, at least yet. It took half a day of uptim= e=20 to hit this, so might not be that easy. =2D-=20 Oleksandr Natalenko (post-factum)