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=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT 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 D7846C43387 for ; Wed, 19 Dec 2018 03:27:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A4ADD21873 for ; Wed, 19 Dec 2018 03:27:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727144AbeLSD1t (ORCPT ); Tue, 18 Dec 2018 22:27:49 -0500 Received: from mx1.redhat.com ([209.132.183.28]:36342 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726985AbeLSD1s (ORCPT ); Tue, 18 Dec 2018 22:27:48 -0500 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id C91EA2D7E8; Wed, 19 Dec 2018 03:27:48 +0000 (UTC) Received: from ming.t460p (ovpn-8-17.pek2.redhat.com [10.72.8.17]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 497AE5DD65; Wed, 19 Dec 2018 03:27:43 +0000 (UTC) Date: Wed, 19 Dec 2018 11:27:39 +0800 From: Ming Lei To: linux-block@vger.kernel.org, Jens Axboe , Dennis Zhou Subject: Re: block: percpu ref (blkg_release) <= 0 (0) after switching to atomic Message-ID: <20181219032738.GB4451@ming.t460p> References: <20181219032520.GA4451@ming.t460p> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181219032520.GA4451@ming.t460p> User-Agent: Mutt/1.9.1 (2017-09-22) X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Wed, 19 Dec 2018 03:27:48 +0000 (UTC) Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Wed, Dec 19, 2018 at 11:25:21AM +0800, Ming Lei wrote: > Hi Jens and Dennis, > > The following warning can be triggered on for-4.21/block when running > xfstests generic/475(xfs), and it is introduced by recent Dennis's patches. > > test disk: virtio-blk > scratch: nvme-pci disk oops, the test disk is virtio-scsi, and seems it isn't easy to trigger on virtio-blk. Thanks, Ming