Re: [PATCH v3 0/2] target/s390x: Fix SIGILL psw.addr reporting

[David Hildenbrand]

On 02.06.21 02:22, Ilya Leoshkevich wrote:
> qemu-s390x puts a wrong value into SIGILL's siginfo_t's psw.addr: it
> should be a pointer to the instruction following the illegal
> instruction, but at the moment it is a pointer to the illegal
> instruction itself. This breaks OpenJDK, which relies on this value.
>
> Patch 1 fixes the issue, patch 2 adds a test.
>
> v1: https://lists.nongnu.org/archive/html/qemu-devel/2021-05/msg06592.html
> v1 -> v2: Use a better buglink (Cornelia), simplify the inline asm
>            magic in the test and add an explanation (David).
>
> v2: https://lists.nongnu.org/archive/html/qemu-devel/2021-05/msg06649.html
> v2 -> v3: Fix SIGSEGV handling (found when trying to run valgrind under
>            qemu-user).

There might still be something wrong:

https://gitlab.com/qemu-project/qemu/-/issues/319

At least it smells like some more signal (mis)handling.


--
Thanks,

David / dhildenb