On Mon, 25 Mar 2024 19:40:52 +0000 Edward Liaw <edliaw@xxxxxxxxxx> wrote:
> Following issue was observed while running the uffd-unit-tests selftest
> on ARM devices. On x86_64 no issues were detected:
>
> pthread_create followed by fork caused deadlock in certain cases
> wherein fork required some work to be completed by the created thread.
> Used synchronization to ensure that created thread's start function has
> started before invoking fork.
hm, you cc'ed the whole world apart from peterx. Fixed.
> Signed-off-by: Lokesh Gidra <lokeshgidra@xxxxxxxxxx>
> [edliaw: Refactored to use atomic_bool]
> Signed-off-by: Edward Liaw <edliaw@xxxxxxxxxx>
I'll add cc:stable. For which a Fixes: is desirable. I used
760aee0b71e3 ("selftests/mm: add tests for RO pinning vs fork()"),
please check that.
