From: Andrew Morton <akpm@linux-foundation.org>
To: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Sabyrzhan Tasbolatov <snovitoll@gmail.com>,
hca@linux.ibm.com, christophe.leroy@csgroup.eu,
andreyknvl@gmail.com, agordeev@linux.ibm.com, glider@google.com,
dvyukov@google.com, kasan-dev@googlegroups.com,
linux-kernel@vger.kernel.org, loongarch@lists.linux.dev,
linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org,
linux-s390@vger.kernel.org, linux-um@lists.infradead.org,
linux-mm@kvack.org
Subject: Re: [PATCH v3 01/12] lib/kasan: introduce CONFIG_ARCH_DEFER_KASAN option
Date: Mon, 21 Jul 2025 17:35:20 -0700 [thread overview]
Message-ID: <20250721173520.a24c29782de519dab1c59fec@linux-foundation.org> (raw)
In-Reply-To: <a1bc7a9d-817d-49cc-b7f1-79a900090136@gmail.com>
On Tue, 22 Jul 2025 01:18:52 +0200 Andrey Ryabinin <ryabinin.a.a@gmail.com> wrote:
> >> Architectures that need deferred KASAN should select this option.
> >> Architectures that can enable KASAN early will get compile-time
> >> optimizations instead of runtime checks.
> >
> > Looks nice and appears quite mature. I'm reluctant to add it to mm.git
> > during -rc6, especially given the lack of formal review and ack tags.
> >
> > But but but, that's what the mm-new branch is for. I guess I'll add it
> > to get some additional exposure, but whether I'll advance it into
> > mm-unstable/linux-next for this cycle is unclear.
> >
> > What do you (and others) think?
>
> After looking a bit, it breaks UM and probably LoongArch too.
> I'd say it needs more work and not ready even for mm-new.
OK, thanks. I'll drop the v3 series.
WARNING: multiple messages have this Message-ID (diff)
From: Andrew Morton <akpm@linux-foundation.org>
To: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Sabyrzhan Tasbolatov <snovitoll@gmail.com>,
hca@linux.ibm.com, christophe.leroy@csgroup.eu,
andreyknvl@gmail.com, agordeev@linux.ibm.com, glider@google.com,
dvyukov@google.com, kasan-dev@googlegroups.com,
linux-kernel@vger.kernel.org, loongarch@lists.linux.dev,
linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org,
linux-s390@vger.kernel.org, linux-um@lists.infradead.org,
linux-mm@kvack.org
Subject: Re: [PATCH v3 01/12] lib/kasan: introduce CONFIG_ARCH_DEFER_KASAN option
Date: Mon, 21 Jul 2025 17:35:20 -0700 [thread overview]
Message-ID: <20250721173520.a24c29782de519dab1c59fec@linux-foundation.org> (raw)
In-Reply-To: <a1bc7a9d-817d-49cc-b7f1-79a900090136@gmail.com>
On Tue, 22 Jul 2025 01:18:52 +0200 Andrey Ryabinin <ryabinin.a.a@gmail.com> wrote:
> >> Architectures that need deferred KASAN should select this option.
> >> Architectures that can enable KASAN early will get compile-time
> >> optimizations instead of runtime checks.
> >
> > Looks nice and appears quite mature. I'm reluctant to add it to mm.git
> > during -rc6, especially given the lack of formal review and ack tags.
> >
> > But but but, that's what the mm-new branch is for. I guess I'll add it
> > to get some additional exposure, but whether I'll advance it into
> > mm-unstable/linux-next for this cycle is unclear.
> >
> > What do you (and others) think?
>
> After looking a bit, it breaks UM and probably LoongArch too.
> I'd say it needs more work and not ready even for mm-new.
OK, thanks. I'll drop the v3 series.
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next prev parent reply other threads:[~2025-07-22 0:35 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-17 14:27 [PATCH v3 00/12] kasan: unify kasan_arch_is_ready() and remove arch-specific implementations Sabyrzhan Tasbolatov
2025-07-17 14:27 ` Sabyrzhan Tasbolatov
2025-07-17 14:27 ` [PATCH v3 01/12] lib/kasan: introduce CONFIG_ARCH_DEFER_KASAN option Sabyrzhan Tasbolatov
2025-07-17 14:27 ` Sabyrzhan Tasbolatov
2025-07-17 22:10 ` Andrew Morton
2025-07-17 22:10 ` Andrew Morton
2025-07-18 8:05 ` Sabyrzhan Tasbolatov
2025-07-18 8:05 ` Sabyrzhan Tasbolatov
2025-07-21 23:18 ` Andrey Ryabinin
2025-07-21 23:18 ` Andrey Ryabinin
2025-07-22 0:35 ` Andrew Morton [this message]
2025-07-22 0:35 ` Andrew Morton
2025-07-18 12:38 ` Alexander Gordeev
2025-07-18 12:38 ` Alexander Gordeev
2025-07-21 22:59 ` Andrey Ryabinin
2025-07-21 22:59 ` Andrey Ryabinin
2025-07-17 14:27 ` [PATCH v3 02/12] kasan: unify static kasan_flag_enabled across modes Sabyrzhan Tasbolatov
2025-07-17 14:27 ` Sabyrzhan Tasbolatov
2025-07-21 22:59 ` Andrey Ryabinin
2025-07-21 22:59 ` Andrey Ryabinin
2025-07-17 14:27 ` [PATCH v3 03/12] kasan/powerpc: select ARCH_DEFER_KASAN and call kasan_init_generic Sabyrzhan Tasbolatov
2025-07-17 14:27 ` Sabyrzhan Tasbolatov
2025-07-17 14:27 ` [PATCH v3 04/12] kasan/arm64: call kasan_init_generic in kasan_init Sabyrzhan Tasbolatov
2025-07-17 14:27 ` Sabyrzhan Tasbolatov
2025-07-17 14:27 ` [PATCH v3 05/12] kasan/arm: " Sabyrzhan Tasbolatov
2025-07-17 14:27 ` Sabyrzhan Tasbolatov
2025-07-17 14:27 ` [PATCH v3 06/12] kasan/xtensa: " Sabyrzhan Tasbolatov
2025-07-17 14:27 ` Sabyrzhan Tasbolatov
2025-07-17 14:27 ` [PATCH v3 07/12] kasan/loongarch: select ARCH_DEFER_KASAN and call kasan_init_generic Sabyrzhan Tasbolatov
2025-07-17 14:27 ` Sabyrzhan Tasbolatov
2025-07-21 22:59 ` Andrey Ryabinin
2025-07-21 22:59 ` Andrey Ryabinin
2025-07-22 14:09 ` Sabyrzhan Tasbolatov
2025-07-22 14:09 ` Sabyrzhan Tasbolatov
2025-07-17 14:27 ` [PATCH v3 08/12] kasan/um: " Sabyrzhan Tasbolatov
2025-07-17 14:27 ` Sabyrzhan Tasbolatov
2025-07-21 23:00 ` Andrey Ryabinin
2025-07-21 23:00 ` Andrey Ryabinin
2025-07-22 14:17 ` Sabyrzhan Tasbolatov
2025-07-22 14:17 ` Sabyrzhan Tasbolatov
2025-07-23 17:10 ` Andrey Ryabinin
2025-07-23 17:10 ` Andrey Ryabinin
2025-07-17 14:27 ` [PATCH v3 09/12] kasan/x86: call kasan_init_generic in kasan_init Sabyrzhan Tasbolatov
2025-07-17 14:27 ` Sabyrzhan Tasbolatov
2025-07-17 14:27 ` [PATCH v3 10/12] kasan/s390: " Sabyrzhan Tasbolatov
2025-07-17 14:27 ` Sabyrzhan Tasbolatov
2025-07-18 12:38 ` Alexander Gordeev
2025-07-18 12:38 ` Alexander Gordeev
2025-07-17 14:27 ` [PATCH v3 11/12] kasan/riscv: " Sabyrzhan Tasbolatov
2025-07-17 14:27 ` Sabyrzhan Tasbolatov
2025-07-17 14:27 ` [PATCH v3 12/12] kasan: add shadow checks to wrappers and rename kasan_arch_is_ready Sabyrzhan Tasbolatov
2025-07-17 14:27 ` Sabyrzhan Tasbolatov
2025-07-21 22:59 ` [PATCH v3 00/12] kasan: unify kasan_arch_is_ready() and remove arch-specific implementations Andrey Ryabinin
2025-07-21 22:59 ` Andrey Ryabinin
2025-07-22 18:21 ` Sabyrzhan Tasbolatov
2025-07-22 18:21 ` Sabyrzhan Tasbolatov
2025-07-23 17:32 ` Andrey Ryabinin
2025-07-23 17:32 ` Andrey Ryabinin
2025-08-03 19:27 ` Sabyrzhan Tasbolatov
2025-08-04 12:04 ` Christophe Leroy
2025-08-04 13:21 ` Sabyrzhan Tasbolatov
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