[PATCH v3 1/2] ARM: ioremap: Sync PGDs for VMALLOC shadow

[Clement LE GOFFIC]

On 10/25/24 22:57, Linus Walleij wrote:
>> What happens if you just
>>
>> git checkout b6506981f880^
>>
>> And build and boot that? It's just running the commit right before the
>> unwinding patch.
> 
> Another thing you can test is to disable vmap:ed stacks and see
> what happens. (General architecture-dependent options uncheck
> "Use a virtually-mapped stack".)

Hi Linus,

I have tested your patches against few kernel versions without 
reproducing the issue.
- b6506981f880^
- v6.6.48
- v6.12-rc4
I didn't touch to CONFIG_VMAP_STACK though.

The main difference from my crash report is my test environment which 
was a downstream one.

So it seems related to ST downstream kernel version based on a v6.6.48.
Even though the backtrace was talking about unwinding and kasan.

I will continue to investigate on my side in the next weeks but I don't 
want to block the patch integration process if I was.

Best regards,

Clément