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=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 8BD46C4321D for ; Wed, 22 Aug 2018 10:15:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 402A72148E for ; Wed, 22 Aug 2018 10:15:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 402A72148E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kaod.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728587AbeHVNj5 (ORCPT ); Wed, 22 Aug 2018 09:39:57 -0400 Received: from 15.mo6.mail-out.ovh.net ([188.165.39.161]:54546 "EHLO 15.mo6.mail-out.ovh.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728315AbeHVNj5 (ORCPT ); Wed, 22 Aug 2018 09:39:57 -0400 Received: from player771.ha.ovh.net (unknown [10.109.160.12]) by mo6.mail-out.ovh.net (Postfix) with ESMTP id A1E78175E32 for ; Wed, 22 Aug 2018 12:15:40 +0200 (CEST) Received: from bahia.lan (lns-bzn-46-82-253-208-248.adsl.proxad.net [82.253.208.248]) (Authenticated sender: groug@kaod.org) by player771.ha.ovh.net (Postfix) with ESMTPSA id 10CA88400AA; Wed, 22 Aug 2018 12:15:24 +0200 (CEST) Date: Wed, 22 Aug 2018 12:15:23 +0200 From: Greg Kurz To: Oleksandr Natalenko Cc: Ming Lei , Ming Lei , Omar Sandoval , "Martin K. Petersen" , Christoph Hellwig , Paolo Bonzini , Hannes Reinecke , Jens Axboe , Linux SCSI List , linux-block , Linux Kernel Mailing List , qemu-discuss@nongnu.org, qemu-devel Subject: Re: Slow boot in QEMU with virtio-scsi disks Message-ID: <20180822121523.4494871d@bahia.lan> In-Reply-To: <98344e68266e447826f133ad14d0c83d@natalenko.name> References: <98344e68266e447826f133ad14d0c83d@natalenko.name> X-Mailer: Claws Mail 3.16.0 (GTK+ 2.24.32; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Ovh-Tracer-Id: 4020588570882513327 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedtjedrfedugddviecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfqggfjpdevjffgvefmvefgnecuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 11 Aug 2018 19:39:56 +0200 Oleksandr Natalenko wrote: > Hi. > > On 11.08.2018 14:23, Ming Lei wrote: > > Please test for-4.19/block: > > > > https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git/log/?h=for-4.19/block > > > > This slow boot issue should have been fixed by the following commits: > > > > 1311326cf475 blk-mq: avoid to synchronize rcu inside > > blk_cleanup_queue() > > 97889f9ac24f blk-mq: remove synchronize_rcu() from > > blk_mq_del_queue_tag_set() > > 5815839b3ca1 blk-mq: introduce new lock for protecting > > hctx->dispatch_wait > > 2278d69f030f blk-mq: don't pass **hctx to blk_mq_mark_tag_wait() > > 8ab6bb9ee8d0 blk-mq: cleanup blk_mq_get_driver_tag() > > Indeed, I can confirm that these commits fix the issue. > > Thanks a lot. > So do I. Thanks Ming Lei for the fix ! Cheers, -- Greg