Re: [patch 064/158] mm: add generic ptdump

Borislav Petkov
2019-12-01T15:10:23Z

On Sun, Dec 01, 2019 at 06:45:23AM -0800, Linus Torvalds wrote:
> On Sun, Dec 1, 2019 at 1:09 AM Borislav Petkov <bp@alien8.de> wrote:
> >
> > That generic ptdump stuff is probably causing a splat on 32-bit:
> >
> > https://lkml.kernel.org/r/20191125144946.GA6628@duo.ucw.cz
>
> Hmm. I'm not sure about code generation, but for me that config gives me

Note that I typed "probably" above because I'm not 100% sure it is
those patches that would cause it. I mean, I saw EIP pointing to
ptdump_pte_entry and was able to repro on linux-next with the .config in
a vm.

But then your master or tip/master wouldn't trigger so I shelved that as
it is merge window and other 32-bit shit was broken, which needed more
attention.

So lemme first confirm it really is caused by those patches.