Re: [GIT PULL] tracing: Fixes to bootconfig memory management

[Linus Torvalds]

On Tue, Sep 14, 2021 at 12:00 PM Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:
>
> Note, they do fix a real bug as shown by:
>
>   https://lore.kernel.org/all/e5c7ce5b-93f0-b305-de32-c99d0390eb28@xxxxxxx/

Ok, can you send me that NULL ptr check as one separate thing?

> Should we hold off until mm has fixed this issue?

Yeah.

That would actually fix the NULL pointer issue too, since a _proper_
memblock_free() would just be a no-op for NULL.

That whole "do __pa() on a random pointer to pass it to
memblock_free()" is really just complete garbage in _so_ many ways.

                Linus