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From: Lucas Stach <l.stach@pengutronix.de>
To: Christoph Hellwig <hch@lst.de>
Cc: iommu@lists.linux-foundation.org,
	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Subject: Re: large DMA segments vs SWIOTLB
Date: Thu, 01 Aug 2019 10:35:02 +0200	[thread overview]
Message-ID: <1564648502.7267.27.camel@pengutronix.de> (raw)
In-Reply-To: <20190801072958.GA16178@lst.de>

Hi Christoph,

Am Donnerstag, den 01.08.2019, 09:29 +0200 schrieb Christoph Hellwig:
> Hi Lukas,
> 
> have you tried the latest 5.3-rc kernel, where we limited the NVMe
> I/O size based on the swiotlb buffer size?

Yes, the issue was reproduced on 5.3-rc2. I now see your commit
limiting the request size, so I guess I need to dig in to see why I'm
still getting requests larger than the SWIOTLB max segment size. Thanks
for the pointer!

Regards,
Lucas
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  reply	other threads:[~2019-08-01  8:45 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-31 14:40 large DMA segments vs SWIOTLB Lucas Stach
2019-08-01  7:29 ` Christoph Hellwig
2019-08-01  8:35   ` Lucas Stach [this message]
2019-08-01 14:00     ` Christoph Hellwig
2019-08-05 15:56       ` Lucas Stach

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