From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CF2625677F for ; Thu, 11 Jan 2024 16:18:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lst.de Received: by verein.lst.de (Postfix, from userid 2407) id BC6D768CFE; Thu, 11 Jan 2024 17:18:46 +0100 (CET) Date: Thu, 11 Jan 2024 17:18:46 +0100 From: Christoph Hellwig To: Jens Axboe Cc: Christoph Hellwig , Ming Lei , linux-block@vger.kernel.org Subject: Re: [PATCH 2/2] blk-mq: ensure a q_usage_counter reference is held when splitting bios Message-ID: <20240111161846.GA17045@lst.de> References: <20240111135705.2155518-1-hch@lst.de> <20240111135705.2155518-3-hch@lst.de> <20240111161440.GA16626@lst.de> Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) On Thu, Jan 11, 2024 at 09:17:41AM -0700, Jens Axboe wrote: > Don't think it's .config related, hit it on my test box and then in my > vm as well. It's likely due to batched allocations, would be my guess. > I can start/halt the vm fine with just a boot, but if I do: > > $ ~/git/fio/t/io_uring -p1 -d128 -b512 -s32 -c32 -F1 -B1 -R0 -X1 -P1 /dev/nvme0n1 > > for just a brief moment, nvme0 will hang on shutdown. Thanks, I'll look into it.