On Thu, 21 Aug 2025 at 15:28, Peter Xu <pet...@redhat.com> wrote: > > On Thu, 21 Aug 2025 at 13:40, Peter Maydell <peter.mayd...@linaro.org> > > wrote: > > > In memory_region_unref_subregion(), subregion->container is NULL. > > > > > > This is because in memory_region_del_subregion() we do: > > > > > > subregion->container = NULL; > > > > > > and then after that we call > > > memory_region_unref_subregion(subregion); > > > which dereferences subregion->container. > > > > > > Won't this always SEGV ?
> Peter, could you try the v3 version patch 8/9 instead? > > https://lore.kernel.org/all/20240708-san-v3-8-b03f671c4...@daynix.com/ > > I still prefer that one, and I hope that one doesn't have this issue. That one fails like this: qemu-system-arm: ../../system/memory.c:1799: memory_region_finalize: Assertion `!mr->container' failed. See the discussion on v2 (which was the same for this patch): https://lore.kernel.org/all/cafeaca9ktsjwf1rabpm5nv9ufukqzzk6+qo4pef4+rtirni...@mail.gmail.com/ thanks -- PMM
