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From:   Nadav Amit <namit@vmware.com>
To:     Linus Torvalds <torvalds@linux-foundation.org>
CC:     Uros Bizjak <ubizjak@gmail.com>,
        the arch/x86 maintainers <x86@kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Andy Lutomirski <luto@kernel.org>,
        Brian Gerst <brgerst@gmail.com>,
        Denys Vlasenko <dvlasenk@redhat.com>,
        "H . Peter Anvin" <hpa@zytor.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Josh Poimboeuf <jpoimboe@redhat.com>,
        Nick Desaulniers <ndesaulniers@google.com>
Subject: Re: [PATCH v2 -tip] x86/percpu: Use C for arch_raw_cpu_ptr()
Thread-Topic: [PATCH v2 -tip] x86/percpu: Use C for arch_raw_cpu_ptr()
Thread-Index: AQHZ+5jZGZywpkB5zE2yxvhqDFo/Fg==
Date:   Tue, 17 Oct 2023 22:29:22 +0000
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> On Oct 18, 2023, at 1:06 AM, Nadav Amit <namit@vmware.com> wrote:
>=20
>=20
>=20
>> On Oct 18, 2023, at 12:53 AM, Linus Torvalds <torvalds@linux-foundation.=
org> wrote:
>>=20
>>=20
>> but none of this should even matter, because by the time we actually
>> *schedule* that thread, we'll set active_mm to the right thing.
>>=20
>> Can anybody see what's up?
>=20
> Could it be related to exec_mmap() -> exec_mm_release() -> mm_release() -=
> deactivate_mm() ?

I am probably completely wrong. Sorry for the noise.=