On Dez 08 2024, Linus Torvalds wrote:
> IOW, does this one-liner fix it for you?
>
> --- a/kernel/futex/futex.h
> +++ b/kernel/futex/futex.h
> @@ -265,7 +265,7 @@
> else if (!user_read_access_begin(from, sizeof(*from)))
> return -EFAULT;
> unsafe_get_user(val,
Le 09/12/2024 à 01:32, Linus Torvalds a écrit :
On Sun, 8 Dec 2024 at 14:54, Andreas Schwab wrote:
This breaks userspace on ppc32. As soon as /init in the initrd is
started the kernel hangs (without any messages).
Funky, funky. Most of the diff is the code movement (and some small
x86-sp
On Sun, 8 Dec 2024 at 14:54, Andreas Schwab wrote:
>
> This breaks userspace on ppc32. As soon as /init in the initrd is
> started the kernel hangs (without any messages).
Funky, funky. Most of the diff is the code movement (and some small
x86-specific stuff), so for ppc, the only part that shou
On Nov 22 2024, Linus Torvalds wrote:
> Josh Poimboeuf reports that he got a "will-it-scale.per_process_ops 1.9%
> improvement" report for his patch that changed __get_user() to use
> pointer masking instead of the explicit speculation barrier. However,
> that patch doesn't actually work in the g
