lkml.org 
[lkml]   [2010]   [Jun]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: BUG in drivers/dma/ioat/dma_v2.c:314
From
Date
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



\
 
 \ /
  Last update: 2010-06-30 20:47    [W:0.219 / U:0.992 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site