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SubjectRe: KASAN / KUNIT: testing ran on qemu-arm and list of failures
On Wed, Nov 2, 2022 at 3:15 PM Naresh Kamboju <naresh.kamboju@linaro.org> wrote:

> This is a report to get a quick update on kasan on qemu-arm.
>
> The KASAN / KUNIT testing ran on qemu-arm and the following test cases failed
> and the kernel crashed.
>
> Following tests failed,
> kasan_strings - FAILED
> vmalloc_oob - FAILED
> kasan_memchr - FAILED
> kasan - FAILED
> kasan_bitops_generic - FAILED
>
> Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>

Which isn't very strange since:

> [ 429.920201] Insufficient stack space to handle exception!

the system ran out of stack. With VMAP stack and IRQSTACKS
there is really not much more memory we can provide.

When I discussed this with syzbot it seemed they were using some
really big userspace program written in Go that just used up all
the virtual memory :P

I don't know the nature of this test though. Using a lot of memory??

Yours,
Linus Walleij

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