Hi kazu I delete it first, Info as follows crash_arm64_v8.0.4++> mod -d sysdump crash_arm64_v8.0.4++> set debug 1 debug: 1 crash_arm64_v8.0.4++> mod -s sysdump mod: WARNING: module section data structures unrecognized or changed add-symbol-file /home/tianming.wang/k66/sysdump.ko 0xffffffxxx -s .data 0xffffffxxx -s .bss 0xffffffxxx -s .rodata 0xffffffxxx add symbol table from file "/home/tianming.wang/k66/sysdump.ko" at .text_addr = 0xffffffxxx .data_addr = 0xffffffxxx .bss_addr = 0xffffffxxx .rodata_addr = 0xffffffxxx MODULE NAME TEXT_BASE SIZE OBJECT FILE ffffffxxx sysdump ffffffxxx 110592 /home/tianming.wang/k66/sysdump.ko crash_arm64_v8.0.4++> gdb info address sysdump_panic_event Symbol "sysdump_panic_event" is a function at address 0x4a74. crash_arm64_v8.0.4++> gdb info symbol sysdump_panic_event sysdump_panic_event in section .text.sysdump_panic_event of /home/tianming.wang/k66/sysdump.ko crash_arm64_v8.0.4++> mod -s sysdump sysdump: module symbols are already loaded MODULE NAME TEXT_BASE SIZE OBJECT FILE ffffffxxx sysdump ffffffxxx 110592 /home/tianming.wang/k66/sysdump.ko Thanks -- Crash-utility mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxxxxxx https://${domain_name}/admin/lists/devel.lists.crash-utility.osci.io/ Contribution Guidelines: https://github.com/crash-utility/crash/wiki