From: David Woodhouse <David.Woodhouse@intel.com>
To: Chris Li <lkml@chrisli.org>
Cc: "Williams, Dan J" <dan.j.williams@intel.com>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: BUG in drivers/dma/ioat/dma_v2.c:314
Date: Wed, 30 Jun 2010 19:43:42 +0100 [thread overview]
Message-ID: <1277923422.16256.8.camel@localhost> (raw)
In-Reply-To: <AANLkTimzQHwVYZU73hoV4S3w9Ez43xNUrvdMkEDWCrvF@mail.gmail.com>
On Wed, 2010-06-30 at 19:26 +0100, Chris Li wrote:
>
> The delta seems to be this line:
> ioatdma 0000:00:0f.0: ioat2_set_chainaddr: chainaddr: ffffe000
That's a reasonable address if the IOMMU is enabled. We start at 4GiB
and work down, so that's the second page given out (or the first 8KiB
chunk).
It looks like the DMA is going AWOL causing the initialisation to
fail... but it's interesting that there are no DMA faults reported by
the IOMMU.
--
David Woodhouse Open Source Technology Centre
David.Woodhouse@intel.com Intel Corporation
next prev parent reply other threads:[~2010-06-30 18:44 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-28 23:50 BUG in drivers/dma/ioat/dma_v2.c:314 Chris Li
2010-06-29 0:45 ` Dan Williams
2010-06-29 7:17 ` Chris Li
2010-06-29 23:20 ` Chris Li
2010-06-29 23:57 ` Dan Williams
2010-06-30 1:07 ` Chris Li
2010-06-30 4:17 ` Dan Williams
2010-06-30 18:26 ` Chris Li
2010-06-30 18:43 ` Chris Li
2010-06-30 18:43 ` David Woodhouse [this message]
2010-06-30 19:40 ` Dan Williams
2010-06-30 20:02 ` David Woodhouse
2010-06-30 21:44 ` Dan Williams
2010-06-30 21:59 ` Chris Li
2010-06-30 22:04 ` Dan Williams
2010-07-01 6:21 ` David Woodhouse
2010-07-01 6:51 ` Dan Williams
2010-07-01 7:12 ` David Woodhouse
2010-07-01 7:26 ` Dan Williams
2010-07-01 8:15 ` David Woodhouse
2010-07-01 17:20 ` Dan Williams
2010-07-01 17:58 ` Chris Li
2010-07-02 19:00 ` Chris Li
2010-07-05 10:16 ` David Woodhouse
2010-07-06 23:40 ` Chris Li
2010-07-07 0:51 ` Dan Williams
2010-07-07 0:51 ` Chris Li
2010-07-07 0:58 ` Dan Williams
2010-07-07 1:03 ` Chris Li
2010-07-07 3:22 ` David Woodhouse
2010-07-07 3:40 ` David Woodhouse
2010-07-07 17:47 ` Dan Williams
2010-07-07 18:07 ` David Woodhouse
2010-07-07 21:56 ` Chris Li
2010-07-09 21:28 ` Dan Williams
2010-07-09 22:00 ` Chris Li
2010-07-10 0:09 ` David Woodhouse
2010-07-15 5:41 ` Dan Williams
2010-07-16 21:29 ` Chris Li
2010-07-16 22:12 ` David Woodhouse
2010-07-16 22:40 ` Chris Li
2010-07-22 1:15 ` Dan Williams
2010-07-22 21:39 ` Chris Li
2010-07-22 22:00 ` Dan Williams
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