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Thu, 12 Mar 2026 05:53:44 -0700 (PDT) Received: from [100.64.0.1] ([170.85.103.0]) by smtp.gmail.com with ESMTPSA id 586e51a60fabf-41791432d87sm3765785fac.1.2026.03.12.05.53.43 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 12 Mar 2026 05:53:44 -0700 (PDT) Message-ID: Date: Thu, 12 Mar 2026 07:53:42 -0500 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 14/15] mm/kasan: add document into kernel-parameters.txt To: Baoquan He , kasan-dev@googlegroups.com Cc: linux-mm@kvack.org, andreyknvl@gmail.com, ryabinin.a.a@gmail.com, glider@google.com, dvyukov@google.com, linux-kernel@vger.kernel.org, linux-um@lists.infradead.org, linux-arm-kernel@lists.infradead.org, loongarch@lists.linux.dev, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, x86@kernel.org, chris@zankel.net, jcmvbkbc@gmail.com, linux-s390@vger.kernel.org, hca@linux.ibm.com References: <20260225081412.76502-1-bhe@redhat.com> <20260225081412.76502-15-bhe@redhat.com> From: Samuel Holland Content-Language: en-US In-Reply-To: <20260225081412.76502-15-bhe@redhat.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 02C45C0015 X-Stat-Signature: wsm66gow87tjrp5gx11uiwifki8j5uyj X-Rspam-User: X-HE-Tag: 1773320025-944322 X-HE-Meta: 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 WIpZv31o pOdL2ot+jLGTDk7mkQzbxnzNhkhXrd0AdnYoCh6dzqur92l88lM23OGpBoQLVEcMPqvUifG9LJrHKdgFCyc2UnPT08HRJ8Bl51ZrOTEHHl145GMKengBgAe+PomWxqyY590LvxQ8rhD0JJgL/cxEMQIeV4oBjA6/fi68vAWnu27KAauK1Wd5f7qUflS1SC2ijdp2x4uDgF7r43MCuH1WQWn+RTI8ipHpnmi84Jfi2wMcCEx7q3xN2MC0EarYa81q4cHdh3klAvZ21a0azhWVVeHd/YKacOcPiQXdCWntr56hutXv0iHmMtt2thdgJM+/JDHGUBhJMTYyUWGlKuUjPDUATsxOFC+9UcwqrMQp02RkvMKenMEDVyJ2xCMCB2rVnedrxCWYGnwrzzQZEWLO9iDdlU51NtY4ulU9R Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi Baoquan, On 2026-02-25 2:14 AM, Baoquan He wrote: > And also remove the relevant description in dev-tools/kasan.rst > which is hw_tags specificially. > > Signed-off-by: Baoquan He > --- > Documentation/admin-guide/kernel-parameters.txt | 4 ++++ > Documentation/dev-tools/kasan.rst | 2 -- > 2 files changed, 4 insertions(+), 2 deletions(-) > > diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt > index cb850e5290c2..e0115fad9e60 100644 > --- a/Documentation/admin-guide/kernel-parameters.txt > +++ b/Documentation/admin-guide/kernel-parameters.txt > @@ -2899,6 +2899,10 @@ Kernel parameters > js= [HW,JOY] Analog joystick > See Documentation/input/joydev/joystick.rst. > > + kasan= [KNL] controls whether KASAN is enabled. > + Format: off | on > + default: on > + > kasan_multi_shot > [KNL] Enforce KASAN (Kernel Address Sanitizer) to print > report on every invalid memory access. Without this > diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst > index a034700da7c4..eaae83fcb5e4 100644 > --- a/Documentation/dev-tools/kasan.rst > +++ b/Documentation/dev-tools/kasan.rst > @@ -129,8 +129,6 @@ Hardware Tag-Based KASAN mode is intended for use in production as a security > mitigation. Therefore, it supports additional boot parameters that allow > disabling KASAN altogether or controlling its features: The sentence above is now incorrect as well. I would recommend documenting the parameter earlier in the "Boot parameters" section instead of removing it from this document entirely. Regards, Samuel > > -- ``kasan=off`` or ``=on`` controls whether KASAN is enabled (default: ``on``). > - > - ``kasan.mode=sync``, ``=async`` or ``=asymm`` controls whether KASAN > is configured in synchronous, asynchronous or asymmetric mode of > execution (default: ``sync``).