From: Joerg Roedel <joro@8bytes.org>
To: Mark Hounschell <markh@compro.net>
Cc: iommu@lists.linux-foundation.org,
Linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: BUG at drivers/iommu/amd_iommu.c:1436!
Date: Thu, 17 Nov 2016 22:41:41 +0100 [thread overview]
Message-ID: <20161117214141.GC2078@8bytes.org> (raw)
In-Reply-To: <838275de-6cac-93d8-ca04-54b06a24b3d4@compro.net>
Hi Mark,
On Thu, Nov 17, 2016 at 02:13:59PM -0500, Mark Hounschell wrote:
> Kernel version is 4.8.0. No failure when the IOMMU is disabled. This
> is an out of tree GPL driver using
> pci_alloc_consistent/pci_free_consistent. The free causes this.
Can you please run the driver with dma-api debugging enabled? Does it
trigger any warnings?
Joerg
next prev parent reply other threads:[~2016-11-17 21:41 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-17 19:13 BUG at drivers/iommu/amd_iommu.c:1436! Mark Hounschell
2016-11-17 21:41 ` Joerg Roedel [this message]
2016-11-17 21:53 ` Mark Hounschell
2016-11-17 22:00 ` Joerg Roedel
2016-11-18 14:04 ` Mark Hounschell
2016-11-21 15:32 ` Joerg Roedel
2016-11-21 21:47 ` Mark Hounschell
2016-11-22 8:45 ` Joerg Roedel
2016-11-22 19:53 ` Mark Hounschell
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