drm/fbdev-dma: regression

[Nuno Gonçalves]

On Mon, Nov 11, 2024, 14:37 Thomas Zimmermann <tzimmermann at suse.de> wrote:

> Hi
>
>
> Am 11.11.24 um 14:42 schrieb Nuno Gonçalves:
> > On Mon, Nov 11, 2024 at 1:22 PM Thomas Zimmermann <tzimmermann at suse.de>
> wrote:
> >> The patch in question changes the whole memory management of the
> >> affected code. It's also noteworthy that most of it has been reworked
> >> for the upcoming v6.12. Maybe this already fixed the problem. Kernel
> >> v6.11-rc7 added commit 5a498d4d06d6 ("drm/fbdev-dma: Only install
> >> deferred I/O if necessary"), which possibly fixes the problem as well.
> >>
> >> But there's no explicit fix for this problem and I have not seen any
> >> other related reports. Any further information is welcome.
> > Issue was present since 5ab91447aa13b8b98bc11f5326f33500b0ee2c48 and
> > tested until 6.12-rc3.
> > Is there any suggestion on how to dig down?
>
> Do you have a stack trace of this problem?
>

No. I need to build kernel with debug?



> Which hardware platform is affected?
>

ARM64 with ili9225 and display size 220, 176. It also
happens in another board with a different tinydrm driver and size 320,
240.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/dri-devel/attachments/20241111/1414ef97/attachment.htm>