Re: [PATCH] dma-debug: disable DMA_API_DEBUG for now

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On Thu, Jun 11, 2009 at 07:38:47PM +0200, Torsten Kaiser wrote:
> I tried this patch, but I still get a wrong warning from the DMA-API:
> Jun 11 19:24:57 treogen [    9.451064] raid1: raid set md2 active with
> 2 out of 2 mirrors
> Jun 11 19:24:57 treogen [    9.479278] md2: bitmap initialized from
> disk: read 10/10 pages, set 0 bits
> Jun 11 19:24:57 treogen [    9.479282] created bitmap (153 pages) for device md2
> Jun 11 19:24:57 treogen [    9.513544] md: ... autorun DONE.
> Jun 11 19:24:57 treogen [    9.517590]  md3: unknown partition table
> Jun 11 19:24:57 treogen [   20.718608] XFS mounting filesystem dm-0
> Jun 11 19:24:57 treogen [   21.220452] ------------[ cut here ]------------
> Jun 11 19:24:57 treogen [   21.220477] WARNING: at lib/dma-debug.c:532
> check_unmap+0x49e/0x620()
> Jun 11 19:24:57 treogen [   21.220482] Hardware name: KFN5-D SLI
> Jun 11 19:24:57 treogen [   21.220488] sata_sil24 0000:04:00.0:
> DMA-API: device driver tries to free DM A memory it has not allocated [device address=0x000000011e4c3000]

This happens with the best-fit if there is no perfect fit but multiple
matches. This warning needs to be adjusted to also cover this case. I
have this on my list and will fix it soon.

Joerg

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