From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754643AbaBJTuj (ORCPT ); Mon, 10 Feb 2014 14:50:39 -0500 Received: from mail-pa0-f53.google.com ([209.85.220.53]:48339 "EHLO mail-pa0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754616AbaBJTuJ (ORCPT ); Mon, 10 Feb 2014 14:50:09 -0500 Date: Mon, 10 Feb 2014 12:50:04 -0700 From: Jens Axboe To: Christoph Hellwig Cc: Shaohua Li , linux-kernel@vger.kernel.org Subject: Re: virtio_blk softlockup in block/for-linus Message-ID: <20140210195003.GB3784@kernel.dk> References: <20140210112420.GA17598@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140210112420.GA17598@infradead.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Feb 10 2014, Christoph Hellwig wrote: > When running xfstests on Jens' current for-linus tree I see the > softlockup below (which locks the VM hard). I bisected it down to > "blk-mq: Don't reserve a tag for flush request". My recently posted > flush rework also fixes the issue, btw. I've applied the flush re-work. -- Jens Axboe