Re: [PATCH 4/4] tests/tcg/multiarch: add vma-pthread.c

[Peter Maydell]

On Mon, 16 Jan 2023 at 12:40, Philippe Mathieu-Daudé <philmd@linaro.org> wrote:
>
> On 13/1/23 18:10, Alex Bennée wrote:
> >
> > Peter Maydell <peter.maydell@linaro.org> writes:
> >
> >> On Sat, 24 Dec 2022 at 15:19, Richard Henderson
> >> <richard.henderson@linaro.org> wrote:
> >>>
> >>> From: Ilya Leoshkevich <iii@linux.ibm.com>
> >>>
> >>> Add a test that locklessly changes and exercises page protection bits
> >>> from various threads. This helps catch race conditions in the VMA
> >>> handling.
> >>>
> >>> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
> >>> Message-Id: <20221223120252.513319-1-iii@linux.ibm.com>
> >>> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> >>
> >> I've noticed that this newly added vma-pthread test seems to
> >> be flaky. Here's an example from a clang-user job:
> >> https://gitlab.com/qemu-project/qemu/-/jobs/3600385176
> >>
> >> TEST vma-pthread-with-libbb.so on aarch64
> >> fail indirect write 0x5500b1eff0 (Bad address)
> >> timeout: the monitored command dumped core
> >> Aborted
> >> make[1]: *** [Makefile:173: run-plugin-vma-pthread-with-libbb.so] Error 134
> >>
> >> and another from a few days earlier:
> >> https://gitlab.com/qemu-project/qemu/-/jobs/3572970612
> >>
> >> TEST vma-pthread-with-libsyscall.so on s390x
> >> fail indirect read 0x4000999000 (Bad address)
> >> timeout: the monitored command dumped core
> >> Aborted
> >> make[1]: *** [Makefile:173: run-plugin-vma-pthread-with-libsyscall.so] 
> >> Error 134
>
> Yet again:
> https://gitlab.com/qemu-project/qemu/-/jobs/3608436731

Yep. Could somebody write a patch to disable this test while
we figure out why it's flaky, please?

thanks
-- PMM