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From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
To: "Gonzalez Monroy, Sergio" <sergio.gonzalez.monroy@intel.com>,
	 "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v2] doc: add known issue for iommu and igb_uio
Date: Fri, 12 Dec 2014 14:28:19 +0100	[thread overview]
Message-ID: <548AED73.3030804@6wind.com> (raw)
In-Reply-To: <91383E96CE459D47BCE92EFBF5CE73B004EFED22@IRSMSX108.ger.corp.intel.com>

Le 12/12/2014 14:20, Gonzalez Monroy, Sergio a écrit :
>> From: Nicolas Dichtel [mailto:nicolas.dichtel@6wind.com]
>> Sent: Friday, December 12, 2014 1:00 PM
>> Le 12/12/2014 13:06, Sergio Gonzalez Monroy a écrit :
>>> Known issue regarding iommu/VT-d and igb_uio on Linux kernel version
>>> 3.15 to 3.17 where unbinding the device from the driver removes the
>>> 1:1
>> Do you mean that the problem doesn't exist with a linux 3.18?
> Yes,  as it is mentioned in the resolution/workarounds, earlier or later kernels do solve the issue.
Ok, I was not sure that the last version was tested ;-)

>>> mapping for the device on the iommu resulting in memory access errors.
>> Do you have the linux commit id which introduces the problem? And the one
>> which solves it?
> I do have the commits, but I was not sure if I should add the info (at least no previous release note did).
> Introduced in:
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/iommu/intel-iommu.c?id=816997d03bca9fabcee65f3481eb0297103eceb7
> Solved in:
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/iommu/intel-iommu.c?id=1196c2fb0407683c2df92d3d09f9144d42830894
I think it's a very useful info.

Thank you,

  reply	other threads:[~2014-12-12 13:28 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-12 10:41 [dpdk-dev] [PATCH] doc: Add " Sergio Gonzalez Monroy
2014-12-12 12:06 ` [dpdk-dev] [PATCH v2] doc: add " Sergio Gonzalez Monroy
2014-12-12 12:59   ` Nicolas Dichtel
2014-12-12 13:20     ` Gonzalez Monroy, Sergio
2014-12-12 13:28       ` Nicolas Dichtel [this message]
2014-12-12 13:38         ` Gonzalez Monroy, Sergio
2014-12-12 13:50           ` Nicolas Dichtel
2014-12-12 16:34             ` Thomas Monjalon
2014-12-12 14:43   ` [dpdk-dev] [PATCH v3] " Sergio Gonzalez Monroy
2014-12-15 10:32     ` [dpdk-dev] [PATCH v4] " Sergio Gonzalez Monroy
2014-12-17 10:01       ` Iremonger, Bernard

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