Re: Linux 6.12.4 - crash dma_alloc_attrs+0x12b via ipu6

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On Tue, 2024-12-10 at 16:18 +0100, Stanislaw Gruszka wrote:
> 
> I've reproduced the issue. It's caused by 6.12.y commit:
> 
> commit 6ac269abab9ca5ae910deb2d3ca54351c3467e99
> Author: Bingbu Cao <bingbu.cao@xxxxxxxxx>
> Date:   Wed Oct 16 15:53:01 2024 +0800
> 
>     media: ipu6: not override the dma_ops of device in driver

Terrific - I missed your comment as I was heads down doing git bisect
which lands on same commit as you - so confirmed.

> The problem will disappear after applying:
> https://lore.kernel.org/stable/20241209175416.59433-1-
> stanislaw.gruszka@xxxxxxxxxxxxxxx/
> since the allocation will not longer fail.
> 
> But we also need to handle fail case correctly by adding
> cpu_latency_qos_remove_request() on error path. This requires
> mainline fix, I'll post it. 
> 

Thank you !


Gene

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