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Howlett" , Lorenzo Stoakes , Michal Hocko , Mike Rapoport , Palmer Dabbelt , Paul Walmsley , Suren Baghdasaryan , Vlastimil Babka Cc: oe-kbuild-all@lists.linux.dev, Linux Memory Management List , linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Muchun Song , Vivian Wang Subject: Re: [PATCH v5] mm/sparse-vmemmap: flush_cache_vmap() after hotplugging vmemmap Message-ID: <202607092128.yG6dYQOt-lkp@intel.com> References: <20260707-mark-after-vmemmap-populate-v5-1-77d1ded3cae3@iscas.ac.cn> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260707-mark-after-vmemmap-populate-v5-1-77d1ded3cae3@iscas.ac.cn> X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 1534C1C0006 X-Stat-Signature: ienh7qsa59i6jj3m9k1c6d53mudksku3 X-Rspam-User: X-HE-Tag: 1783604060-428192 X-HE-Meta: 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 VaO3lGSI ceffPNnEW7TDqzojEqp//rgW0yQblXmb3u3eaBb9hXz+UMoMiaqWBuVj9uMX+z1yCr3hvWOw6BRbERp3kI9VVoYZTqeTFBAdydhjn0dcwdKv1h1fXY6e+Qlq9aJNqPBi+xMArjX7xKNY1P71dvPf2ORLZbq1ZvUtdCOhzsXt8y0JV6jW0SL1EEBb/tkbV3S/lHtoQb2EbveTtChpWCqrNj41q0Itjj7IL0roXf2w5mjFrPVSofuHVIzpkeP2hP8gNA3LocmHfoQgv4wj++QyC1GXrtXiYaZtGlEfIUiOIVeuzQpldOO7jY2ZWhHolrLlMHU65Dkx7AJH8bBp6bbPbV9bywVT/9seGjavkQRp9MEiwwsTkY82zF8EQ+Zbubc107VeY Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi Vivian, kernel test robot noticed the following build errors: [auto build test ERROR on dc59e4fea9d83f03bad6bddf3fa2e52491777482] url: https://github.com/intel-lab-lkp/linux/commits/Vivian-Wang/mm-sparse-vmemmap-flush_cache_vmap-after-hotplugging-vmemmap/20260707-121114 base: dc59e4fea9d83f03bad6bddf3fa2e52491777482 patch link: https://lore.kernel.org/r/20260707-mark-after-vmemmap-populate-v5-1-77d1ded3cae3%40iscas.ac.cn patch subject: [PATCH v5] mm/sparse-vmemmap: flush_cache_vmap() after hotplugging vmemmap config: riscv-randconfig-002-20260709 (https://download.01.org/0day-ci/archive/20260709/202607092128.yG6dYQOt-lkp@intel.com/config) compiler: riscv64-linux-gcc (GCC) 10.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260709/202607092128.yG6dYQOt-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202607092128.yG6dYQOt-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from include/linux/cacheflush.h:5, from include/linux/highmem.h:8, from include/linux/bvec.h:10, from include/linux/blk_types.h:10, from include/linux/writeback.h:13, from include/linux/memcontrol.h:23, from include/linux/swap.h:9, from include/linux/suspend.h:5, from arch/riscv/kernel/asm-offsets.c:12: arch/riscv/include/asm/cacheflush.h: In function 'flush_cache_vmap': >> arch/riscv/include/asm/cacheflush.h:60:16: error: 'VMEMMAP_START' undeclared (first use in this function) 60 | (start >= VMEMMAP_START && end <= VMEMMAP_END)) | ^~~~~~~~~~~~~ arch/riscv/include/asm/cacheflush.h:60:16: note: each undeclared identifier is reported only once for each function it appears in >> arch/riscv/include/asm/cacheflush.h:60:40: error: 'VMEMMAP_END' undeclared (first use in this function); did you mean 'MEMREMAP_ENC'? 60 | (start >= VMEMMAP_START && end <= VMEMMAP_END)) | ^~~~~~~~~~~ | MEMREMAP_ENC make[3]: *** [scripts/Makefile.build:184: arch/riscv/kernel/asm-offsets.s] Error 1 shuffle=275821313 make[3]: Target 'prepare' not remade because of errors. make[2]: *** [Makefile:1405: prepare0] Error 2 shuffle=275821313 make[2]: Target 'prepare' not remade because of errors. make[1]: *** [Makefile:248: __sub-make] Error 2 shuffle=275821313 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:248: __sub-make] Error 2 shuffle=275821313 make: Target 'prepare' not remade because of errors. vim +/VMEMMAP_START +60 arch/riscv/include/asm/cacheflush.h 42 43 #ifdef CONFIG_64BIT 44 /* This is accessed in assembly code. cpumask_var_t would be too complex. */ 45 extern DECLARE_BITMAP(new_valid_map_cpus, NR_CPUS); 46 extern char _end[]; 47 static inline void mark_new_valid_map(void) 48 { 49 /* 50 * We don't care if concurrently a cpu resets this value since 51 * the only place this can happen is in handle_exception() where 52 * an sfence.vma is emitted. 53 */ 54 bitmap_fill(new_valid_map_cpus, NR_CPUS); 55 } 56 #define flush_cache_vmap flush_cache_vmap 57 static inline void flush_cache_vmap(unsigned long start, unsigned long end) 58 { 59 if (is_vmalloc_or_module_addr((void *)start) || > 60 (start >= VMEMMAP_START && end <= VMEMMAP_END)) 61 mark_new_valid_map(); 62 } 63 #define flush_cache_vmap_early(start, end) local_flush_tlb_kernel_range(start, end) 64 #endif 65 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki