Re: [PATCH 09/16] sparc64: use the generic get_user_pages_fast code

From: Linus Torvalds
Date: Wed Jul 17 2019 - 18:05:17 EST


On Wed, Jul 17, 2019 at 2:59 PM Dmitry V. Levin <ldv@xxxxxxxxxxxx> wrote:
>
> So this ended up as commit 7b9afb86b6328f10dc2cad9223d7def12d60e505
> (thanks to Anatoly for bisecting) and introduced a regression:
> futex.test from the strace test suite now causes an Oops on sparc64
> in futex syscall.

Can you post the oops here in the same thread too? Maybe it's already
posted somewhere else, but I can't seem to find anything likely on
lkml at least..

On x86-64, it obviously just causes the (expected) EFAULT error from
the futex call.

Somebody with access to sparc64 probably needs to debug this, but
having the exact oops wouldn't hurt...

Linus