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From: hch@lst.de (Christoph Hellwig)
Subject: [nvme] Invalid SGL for payload:91648 nents:3
Date: Tue, 25 Jun 2019 11:50:13 +0200	[thread overview]
Message-ID: <20190625095013.GA1353@lst.de> (raw)
In-Reply-To: <20190625094532.GA11214@ming.t460p>

On Tue, Jun 25, 2019@05:45:35PM +0800, Ming Lei wrote:
> 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.

Well, that is exactly what I fixed with my patches that went into
5.2.  Looks like we need to backport those as well.

Wolfgang, can you try the latest 5.2-rc git tree?

  reply	other threads:[~2019-06-25  9:50 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-25  7:51 [nvme] Invalid SGL for payload:91648 nents:3 Wolfgang Rohdewald
2019-06-25  9:17 ` Ming Lei
     [not found]   ` <CAOSXXT5PgPJqouD0G7qJjar5tmy-9z+wWdFMqpD2K1=5vQZ+HA@mail.gmail.com>
2019-06-25  9:45     ` Ming Lei
2019-06-25  9:50       ` Christoph Hellwig [this message]
2019-06-25 10:07         ` Ming Lei
2019-06-25 12:11         ` Wolfgang Rohdewald
2019-06-25 13:29           ` Ming Lei
2019-06-25 15:07             ` Wolfgang Rohdewald
2019-06-26  1:26               ` Ming Lei
2019-06-26 20:18                 ` Wolfgang Rohdewald
2019-07-04 12:09                 ` Wolfgang Rohdewald

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