Interesting. Give me some time to come up with a real fix, as drivers
really should not mess with GFP flags for these allocations, and even
if they did swiotlb is supposed to take care of any resulting problems.
Hello Christoph,
I have found the issue. :-)
GFP_DMA32 was renamed to GFP_DMA in the PowerPC updates 4.21-1 in
December last year.
Some PCI devices still use GFP_DMA32 (grep -r GFP_DMA32 *). I renamed
GFP_DMA32 to GFP_DMA in the file
"drivers/media/v4l2-core/videobuf-dma-sg.c". After
On 12 November 2019 at 3:41 pm, Christoph Hellwig wrote:
On Mon, Nov 11, 2019 at 01:22:55PM +0100, Christian Zigotzky wrote:
Now, I can definitely say that this patch does not solve the issue.
Do you have another patch for testing or shall I bisect?
I'm still interested in the .config and
On Mon, Nov 11, 2019 at 01:22:55PM +0100, Christian Zigotzky wrote:
> Now, I can definitely say that this patch does not solve the issue.
>
> Do you have another patch for testing or shall I bisect?
I'm still interested in the .config and dmesg. Especially if the
board is using
On 11 November 2019 at 09:16 am, Christian Zigotzky wrote:
On 11 November 2019 at 09:12 am, Christian Zigotzky wrote:
On 10 November 2019 at 08:27 am, Christian Zigotzky wrote:
On 07 November 2019 at 10:53 am, Christian Zigotzky wrote:
On 05 November 2019 at 05:28 pm, Christoph Hellwig wrote:
On 11 November 2019 at 09:12 am, Christian Zigotzky wrote:
On 10 November 2019 at 08:27 am, Christian Zigotzky wrote:
On 07 November 2019 at 10:53 am, Christian Zigotzky wrote:
On 05 November 2019 at 05:28 pm, Christoph Hellwig wrote:
On Tue, Nov 05, 2019 at 08:56:27AM +0100, Christian
On 10 November 2019 at 08:27 am, Christian Zigotzky wrote:
On 07 November 2019 at 10:53 am, Christian Zigotzky wrote:
On 05 November 2019 at 05:28 pm, Christoph Hellwig wrote:
On Tue, Nov 05, 2019 at 08:56:27AM +0100, Christian Zigotzky wrote:
Hi All,
We still have DMA problems with some PCI
On 07 November 2019 at 10:53 am, Christian Zigotzky wrote:
On 05 November 2019 at 5:28 pm, Christoph Hellwig wrote:
On Tue, Nov 05, 2019 at 08:56:27AM +0100, Christian Zigotzky wrote:
Hi All,
We still have DMA problems with some PCI devices. Since the PowerPC
updates
4.21-1 [1] we need to
On 05 November 2019 at 5:28 pm, Christoph Hellwig wrote:
On Tue, Nov 05, 2019 at 08:56:27AM +0100, Christian Zigotzky wrote:
Hi All,
We still have DMA problems with some PCI devices. Since the PowerPC updates
4.21-1 [1] we need to decrease the RAM to 3500MB (mem=3500M) if we want to
work with
Hi All,
We still have DMA problems with some PCI devices. Since the PowerPC
updates 4.21-1 [1] we need to decrease the RAM to 3500MB (mem=3500M) if
we want to work with our PCI devices. The FSL P5020 and P5040 have these
problems currently.
Error message:
[ 25.654852] bttv 1000:04:05.0:
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