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[149.14.88.26]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-af63585fff3sm750425466b.21.2025.07.30.06.55.23 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 30 Jul 2025 06:55:23 -0700 (PDT) Message-ID: <7ecaae9e-a088-4c1b-9caf-6a006a756544@redhat.com> Date: Wed, 30 Jul 2025 15:55:22 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC][PATCH v2 16/29] mm/show_mem: Annotate static information into Kmemdump To: Eugen Hristev , linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, tglx@linutronix.de, andersson@kernel.org, pmladek@suse.com Cc: linux-arm-kernel@lists.infradead.org, linux-hardening@vger.kernel.org, corbet@lwn.net, mojha@qti.qualcomm.com, rostedt@goodmis.org, jonechou@google.com, tudor.ambarus@linaro.org References: <20250724135512.518487-1-eugen.hristev@linaro.org> <20250724135512.518487-17-eugen.hristev@linaro.org> From: David Hildenbrand Content-Language: en-US Autocrypt: addr=david@redhat.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 24.07.25 15:54, Eugen Hristev wrote: > Annotate vital static information into kmemdump: > - _totalram_pages > > Information on these variables is stored into dedicated kmemdump section. > > Signed-off-by: Eugen Hristev > --- > mm/show_mem.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/mm/show_mem.c b/mm/show_mem.c > index 41999e94a56d..93a5dc041ae1 100644 > --- a/mm/show_mem.c > +++ b/mm/show_mem.c > @@ -14,12 +14,14 @@ > #include > #include > #include > +#include > > #include "internal.h" > #include "swap.h" > > atomic_long_t _totalram_pages __read_mostly; > EXPORT_SYMBOL(_totalram_pages); > +KMEMDUMP_VAR_CORE(_totalram_pages, sizeof(_totalram_pages)); Tagging these variables that way is really rather ... controversial. As these are exported globals, isn't there a way to have a list of what to include and what not somewhere else? Not sure if any of that would win a beauty price, though. -- Cheers, David / dhildenb