From: Tejun Heo <tj@kernel.org>
To: Andrew Ryder <tireman@shaw.ca>
Cc: linux-ide@vger.kernel.org,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
linux-kernel@vger.kernel.org
Subject: Re: sata_sil24: swiotlb buffer is full ?
Date: Mon, 31 Oct 2016 10:18:25 -0600 [thread overview]
Message-ID: <20161031161825.GA26364@mtj.duckdns.org> (raw)
In-Reply-To: <8b6da1a2-ca9c-e15a-10a8-f3cda092698c@shaw.ca>
Hello,
On Sat, Oct 29, 2016 at 11:40:29PM -0400, Andrew Ryder wrote:
> I have some disks attached to a "Silicon Image, Inc. SiI 3124 PCI-X Serial
> ATA Controller" and it repeatedly locks up the system with the message
> whenever there is heavy disk i/o. The system the controller is attached to
> is a via EPIA-M910 board.
>
> sata_sil24: 0000:06:03.0: swiotlb buffer is full: 65536 bytes)
> DMA: Out of SW-IOMMU space for 65536 bytes at device .."
> sata_sil24 0000:06:03.0: swiotlb buffer is full (sz: 65536 bytes .."
>
> For the past week I have been running with two additional boot parameters
> (iommu=allowdac swiotlb=131072) which seem to have solved the issue, but I
> was curious if this is a driver bug or not?
(cc'ing swiotbl maintainer, hi!)
That looks like iotlb area running out. I don't think there's much to
be done from driver side and we've traditionally been pretty bad at
handling iotlb errors. Konrad, do you have any ideas?
Thanks.
--
tejun
next prev parent reply other threads:[~2016-10-31 16:18 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-30 3:40 sata_sil24: swiotlb buffer is full ? Andrew Ryder
2016-10-31 16:18 ` Tejun Heo [this message]
2016-10-31 19:09 ` Konrad Rzeszutek Wilk
2016-10-31 20:14 ` Andrew Ryder
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