--- zzzz-none-000/linux-3.10.107/kernel/crash_dump.c 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/kernel/crash_dump.c 2021-02-04 17:41:59.000000000 +0000 @@ -18,6 +18,7 @@ * it under CONFIG_CRASH_DUMP and not CONFIG_PROC_VMCORE. */ unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX; +EXPORT_SYMBOL_GPL(elfcorehdr_addr); /* * stores the size of elf header of crash image