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From: Dave Hansen <dave.hansen@intel.com>
To: Andrew Morton <akpm@linux-foundation.org>,
	Maciej Wieczor-Retman <m.wieczorretman@pm.me>
Cc: corbet@lwn.net, morbo@google.com, rppt@kernel.org,
	lorenzo.stoakes@oracle.com, ubizjak@gmail.com, mingo@redhat.com,
	vincenzo.frascino@arm.com, maciej.wieczor-retman@intel.com,
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	ardb@kernel.org, justinstitt@google.com,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	kasan-dev@googlegroups.com, llvm@lists.linux.dev,
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	linux-kbuild@vger.kernel.org, x86@kernel.org
Subject: Re: [PATCH v8 00/14] kasan: x86: arm64: KASAN tag-based mode for x86
Date: Mon, 12 Jan 2026 12:27:54 -0800	[thread overview]
Message-ID: <9d78f71b-cbf1-4936-bc72-befa6d6bfe35@intel.com> (raw)
In-Reply-To: <20260112102957.359c8de904b11dc23cffd575@linux-foundation.org>

On 1/12/26 10:29, Andrew Morton wrote:
> On Mon, 12 Jan 2026 17:26:29 +0000 Maciej Wieczor-Retman <m.wieczorretman@pm.me> wrote:
>> The patchset aims to add a KASAN tag-based mode for the x86 architecture
>> with the help of the new CPU feature called Linear Address Masking
>> (LAM). Main improvement introduced by the series is 2x lower memory
>> usage compared to KASAN's generic mode, the only currently available
>> mode on x86. The tag based mode may also find errors that the generic
>> mode couldn't because of differences in how these modes operate.
> Well this is a hearty mixture of arm, x86 and MM.  I guess that means
> mm.git.
> 
> The review process seems to be proceeding OK so I'll add this to
> mm.git's mm-new branch, which is not included in linux-next.  I'll aim
> to hold it there for a week while people check the patches over and
> send out their acks (please).  Then I hope I can move it into mm.git's
> mm-unstable branch where it will receive linux-next exposure.

Yeah, it'll be good to get it some more testing exposure.

But, we definitely don't want it going upstream until it's more
thoroughly reviewed than it stands. Maciej, this would be a good time to
make sure you have a good idea who needs to review this and go rattle
some cages.


      parent reply	other threads:[~2026-01-12 20:28 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-01-12 17:26 Maciej Wieczor-Retman
2026-01-12 17:27 ` [PATCH v8 01/14] kasan: sw_tags: Use arithmetic shift for shadow computation Maciej Wieczor-Retman
2026-01-12 17:27 ` [PATCH v8 02/14] kasan: arm64: x86: Make special tags arch specific Maciej Wieczor-Retman
2026-01-12 17:27 ` [PATCH v8 04/14] x86/kasan: Add arch specific kasan functions Maciej Wieczor-Retman
2026-01-12 17:27 ` [PATCH v8 06/14] mm/execmem: Untag addresses in EXECMEM_ROX related pointer arithmetic Maciej Wieczor-Retman
2026-01-12 17:28 ` [PATCH v8 13/14] x86/kasan: Logical bit shift for kasan_mem_to_shadow Maciej Wieczor-Retman
2026-01-12 18:29 ` [PATCH v8 00/14] kasan: x86: arm64: KASAN tag-based mode for x86 Andrew Morton
2026-01-12 20:08   ` Maciej Wieczór-Retman
2026-01-12 20:53     ` Andrew Morton
2026-01-12 20:27   ` Dave Hansen [this message]

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