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[149.14.88.26]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-af8f1b172f2sm210258566b.80.2025.07.30.06.52.46 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 30 Jul 2025 06:52:46 -0700 (PDT) Message-ID: Date: Wed, 30 Jul 2025 15:52:45 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC][PATCH v2 22/29] mm/numa: Register 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> <20250724135512.518487-23-eugen.hristev@linaro.org> From: David Hildenbrand Autocrypt: addr=david@redhat.com; keydata= xsFNBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzSREYXZpZCBIaWxk ZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT7CwZgEEwEIAEICGwMGCwkIBwMCBhUIAgkKCwQW AgMBAh4BAheAAhkBFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAmgsLPQFCRvGjuMACgkQTd4Q 9wD/g1o0bxAAqYC7gTyGj5rZwvy1VesF6YoQncH0yI79lvXUYOX+Nngko4v4dTlOQvrd/vhb 02e9FtpA1CxgwdgIPFKIuXvdSyXAp0xXuIuRPQYbgNriQFkaBlHe9mSf8O09J3SCVa/5ezKM OLW/OONSV/Fr2VI1wxAYj3/Rb+U6rpzqIQ3Uh/5Rjmla6pTl7Z9/o1zKlVOX1SxVGSrlXhqt kwdbjdj/csSzoAbUF/duDuhyEl11/xStm/lBMzVuf3ZhV5SSgLAflLBo4l6mR5RolpPv5wad GpYS/hm7HsmEA0PBAPNb5DvZQ7vNaX23FlgylSXyv72UVsObHsu6pT4sfoxvJ5nJxvzGi69U s1uryvlAfS6E+D5ULrV35taTwSpcBAh0/RqRbV0mTc57vvAoXofBDcs3Z30IReFS34QSpjvl Hxbe7itHGuuhEVM1qmq2U72ezOQ7MzADbwCtn+yGeISQqeFn9QMAZVAkXsc9Wp0SW/WQKb76 FkSRalBZcc2vXM0VqhFVzTb6iNqYXqVKyuPKwhBunhTt6XnIfhpRgqveCPNIasSX05VQR6/a OBHZX3seTikp7A1z9iZIsdtJxB88dGkpeMj6qJ5RLzUsPUVPodEcz1B5aTEbYK6428H8MeLq NFPwmknOlDzQNC6RND8Ez7YEhzqvw7263MojcmmPcLelYbfOwU0EVcufkQEQAOfX3n0g0fZz Bgm/S2zF/kxQKCEKP8ID+Vz8sy2GpDvveBq4H2Y34XWsT1zLJdvqPI4af4ZSMxuerWjXbVWb T6d4odQIG0fKx4F8NccDqbgHeZRNajXeeJ3R7gAzvWvQNLz4piHrO/B4tf8svmRBL0ZB5P5A 2uhdwLU3NZuK22zpNn4is87BPWF8HhY0L5fafgDMOqnf4guJVJPYNPhUFzXUbPqOKOkL8ojk CXxkOFHAbjstSK5Ca3fKquY3rdX3DNo+EL7FvAiw1mUtS+5GeYE+RMnDCsVFm/C7kY8c2d0G NWkB9pJM5+mnIoFNxy7YBcldYATVeOHoY4LyaUWNnAvFYWp08dHWfZo9WCiJMuTfgtH9tc75 7QanMVdPt6fDK8UUXIBLQ2TWr/sQKE9xtFuEmoQGlE1l6bGaDnnMLcYu+Asp3kDT0w4zYGsx 5r6XQVRH4+5N6eHZiaeYtFOujp5n+pjBaQK7wUUjDilPQ5QMzIuCL4YjVoylWiBNknvQWBXS lQCWmavOT9sttGQXdPCC5ynI+1ymZC1ORZKANLnRAb0NH/UCzcsstw2TAkFnMEbo9Zu9w7Kv AxBQXWeXhJI9XQssfrf4Gusdqx8nPEpfOqCtbbwJMATbHyqLt7/oz/5deGuwxgb65pWIzufa N7eop7uh+6bezi+rugUI+w6DABEBAAHCwXwEGAEIACYCGwwWIQQb2cqtc1xMOkYN/MpN3hD3 AP+DWgUCaCwtJQUJG8aPFAAKCRBN3hD3AP+DWlDnD/4k2TW+HyOOOePVm23F5HOhNNd7nNv3 Vq2cLcW1DteHUdxMO0X+zqrKDHI5hgnE/E2QH9jyV8mB8l/ndElobciaJcbl1cM43vVzPIWn 01vW62oxUNtEvzLLxGLPTrnMxWdZgxr7ACCWKUnMGE2E8eca0cT2pnIJoQRz242xqe/nYxBB /BAK+dsxHIfcQzl88G83oaO7vb7s/cWMYRKOg+WIgp0MJ8DO2IU5JmUtyJB+V3YzzM4cMic3 bNn8nHjTWw/9+QQ5vg3TXHZ5XMu9mtfw2La3bHJ6AybL0DvEkdGxk6YHqJVEukciLMWDWqQQ RtbBhqcprgUxipNvdn9KwNpGciM+hNtM9kf9gt0fjv79l/FiSw6KbCPX9b636GzgNy0Ev2UV m00EtcpRXXMlEpbP4V947ufWVK2Mz7RFUfU4+ETDd1scMQDHzrXItryHLZWhopPI4Z+ps0rB CQHfSpl+wG4XbJJu1D8/Ww3FsO42TMFrNr2/cmqwuUZ0a0uxrpkNYrsGjkEu7a+9MheyTzcm vyU2knz5/stkTN2LKz5REqOe24oRnypjpAfaoxRYXs+F8wml519InWlwCra49IUSxD1hXPxO WBe5lqcozu9LpNDH/brVSzHCSb7vjNGvvSVESDuoiHK8gNlf0v+epy5WYd7CGAgODPvDShGN g3eXuA== Organization: Red Hat In-Reply-To: <20250724135512.518487-23-eugen.hristev@linaro.org> X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: 8uflt7zKywy18PW4r9chduP-aGNHPF6uiYD8zrUYH4U_1753883568 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Stat-Signature: skfph3ttjtcwoethgheastgzf1wpxxkf X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: F0D7FA0008 X-Rspam-User: X-HE-Tag: 1753883570-38343 X-HE-Meta: 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 v/lzD3q1 FqmgBtoKd525Y6NWVlMUf4XGDM8df9PsJe09b6q8A3Sjd21/7zGNWt9NoOauoWGbxsZ0Xs05GZP9+7o2Exfm+VzQ927FxQQJEEWi+UquiKonVTCwZZrJXRj8Z2B27AvCotQZrLGQkK6Zi3s63vf99HB+O4/i7zsJ2OWv1COYroF1w4nGgIlSgeEBpJL53gOwMzWfWpZzTK52mz0b8DuM8O6G5TH0x7N6QbZbovOgpzB8/qJBIeVCN7erKVL7iShy/m7R7u73PS7zj9gMXpLQxOy6YEgoHI6p5fBNdv/8s+WM8YIRH/X8v7s/g0WuD8MITYhdy5DWVvzC0NbYxvnUjVi2klRNlASAj6UGkX1TZq/X5nk1WfIFRTe0X6hAdfo29gWcw6cShB5XhxK5v9CS0EkmpkqVaMEJYKjQIfTTeHrM482mV78/VvVwxZ/q3msNLRT86q0E40xjWUzfYd24NDmGQw8b6ITaIQ/N7nIxI5PKqlfep6qivul4KKa5cMMEIG8+zK/oat48ovPhD+ss6MWAdKlINiu8vKx2pqZO6ItiuZbY= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 24.07.25 15:55, Eugen Hristev wrote: > Annotate vital static information into kmemdump: > - node_data > > Information on these variables is stored into dedicated kmemdump section. > > Register dynamic information into kmemdump: > - dynamic node data for each node > > This information is being allocated for each node, as physical address, > so call kmemdump_phys_alloc_size that will allocate an unique kmemdump > uid, and register the virtual address. > > Signed-off-by: Eugen Hristev > --- > mm/numa.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/mm/numa.c b/mm/numa.c > index 7d5e06fe5bd4..88cada571171 100644 > --- a/mm/numa.c > +++ b/mm/numa.c > @@ -4,9 +4,11 @@ > #include > #include > #include > +#include > > struct pglist_data *node_data[MAX_NUMNODES]; > EXPORT_SYMBOL(node_data); > +KMEMDUMP_VAR_CORE(node_data, MAX_NUMNODES * sizeof(struct pglist_data)); > > /* Allocate NODE_DATA for a node on the local memory */ > void __init alloc_node_data(int nid) > @@ -16,7 +18,8 @@ void __init alloc_node_data(int nid) > int tnid; > > /* Allocate node data. Try node-local memory and then any node. */ > - nd_pa = memblock_phys_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid); > + nd_pa = kmemdump_phys_alloc_size(nd_size, memblock_phys_alloc_try_nid, > + nd_size, SMP_CACHE_BYTES, nid); Do we really want to wrap memblock allocations in such a way? :/ Gah, no, no no. Can't we pass that as some magical flag, or just ... register *after* allocating? -- Cheers, David / dhildenb