From mboxrd@z Thu Jan  1 00:00:00 1970
From: ming.lei@redhat.com (Ming Lei)
Date: Tue, 25 Jun 2019 17:45:35 +0800
Subject: [nvme] Invalid SGL for payload:91648 nents:3
In-Reply-To: <CAOSXXT5PgPJqouD0G7qJjar5tmy-9z+wWdFMqpD2K1=5vQZ+HA@mail.gmail.com>
References: <92778741dff3723fc94cd75df3043adc9c8bf21a.camel@rohdewald.de>
 <20190625091704.GA30606@ming.t460p>
 <CAOSXXT5PgPJqouD0G7qJjar5tmy-9z+wWdFMqpD2K1=5vQZ+HA@mail.gmail.com>
Message-ID: <20190625094532.GA11214@ming.t460p>

On Tue, Jun 25, 2019@06:38:58PM +0900, Keith Busch wrote:
> The first two sg elements should have been merged to one and would have
> avoided the error. The bug is kernel, nothing to do with the device.

The default max segment size is 64k, so the first two can't be merged.

And the 1st sg should have been dispatched as single request.

Thanks,
Ming