From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-ID: <544A6283.5050400@kernel.dk> Date: Fri, 24 Oct 2014 08:30:27 -0600 From: Jens Axboe MIME-Version: 1.0 Subject: Re: fio rbd hang for block sizes > 1M References: <5449BBB3.7090109@catalyst.net.nz> <5449E50E.7000808@kernel.dk> <5449EEF1.1060407@catalyst.net.nz> <544A51C7.40803@gmail.com> <544A5DA6.2010709@gmail.com> In-Reply-To: <544A5DA6.2010709@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit To: Mark Nelson , Mark Kirkwood , fio@vger.kernel.org Cc: "d.gollub@telekom.de >> Daniel Gollub" , "xan.peng" , "ceph-devel@vger.kernel.org" List-ID: On 2014-10-24 08:09, Mark Nelson wrote: > More info: > > I went back and tested fio versions back to 2.1.10 and still encountered > the issue. I then went back and tested the v0.86 release versus giant > and was able to get through a 4MB read test without error. I suspect > this is not an fio problem. I'll try to narrow down the commit after > 0.86 that is causing this. Thanks, it doesn't look like a fio problem if it's dependent on the block size used. Might warrant a check in the fio configure script, so we can fail (or limit) read sizes on the problematic versions. -- Jens Axboe