[{"id":3669631,"web_url":"http://patchwork.ozlabs.org/comment/3669631/","msgid":"","date":"2026-03-26T10:53:16","subject":"Re: [PATCH v10 4/8] crash: Exclude crash kernel memory in crash core","submitter":{"id":938,"url":"http://patchwork.ozlabs.org/api/people/938/","name":"Catalin Marinas","email":"catalin.marinas@arm.com"},"content":"On Wed, Mar 25, 2026 at 10:59:00AM +0800, Jinjie Ruan wrote:\n> The crash memory alloc, and the exclude of crashk_res, crashk_low_res\n> and crashk_cma memory are almost identical across different architectures,\n> handling them in the crash core would eliminate a lot of duplication, so\n> do them in the common code.\n> \n> To achieve the above goal, three architecture-specific functions are\n> introduced:\n> \n> - arch_get_system_nr_ranges(). Pre-counts the max number of memory ranges.\n> \n> - arch_crash_populate_cmem(). Collects the memory ranges and fills them\n> into cmem.\n> \n> - arch_crash_exclude_ranges(). Architecture's additional crash memory\n> ranges exclusion, defaulting to empty.\n> \n> Reviewed-by: Sourabh Jain \n> Acked-by: Baoquan He \n> Acked-by: Mike Rapoport (Microsoft) \n> Signed-off-by: Jinjie Ruan \n\nFor arm64:\n\nAcked-by: Catalin Marinas ","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linuxppc-dev@lists.ozlabs.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=arm.com header.i=@arm.com header.a=rsa-sha256\n header.s=foss header.b=b4O8r4Jq;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org\n (client-ip=2404:9400:21b9:f100::1; helo=lists.ozlabs.org;\n envelope-from=linuxppc-dev+bounces-18821-incoming=patchwork.ozlabs.org@lists.ozlabs.org;\n receiver=patchwork.ozlabs.org)","lists.ozlabs.org;\n arc=none smtp.remote-ip=217.140.110.172","lists.ozlabs.org;\n dmarc=pass (p=none dis=none) header.from=arm.com","lists.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=arm.com header.i=@arm.com header.a=rsa-sha256\n header.s=foss header.b=b4O8r4Jq;\n\tdkim-atps=neutral","lists.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=arm.com\n (client-ip=217.140.110.172; 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