gdb, gcore를 통한 강제 core dump 방법
- [ulimit -a] 명령으로 core size 확인
- [ulimit -c unlimited] 명령으로 size 제한 해제
- gdb를 통해 core 파일 생성
[root@localhost src]# gdb --pid=18843 --batch -ex gcore [New LWP 18847] [New LWP 18846] [New LWP 18845] [New LWP 18844] [Thread debugging using libthread_db enabled] runtime.epollwait () at /usr/local/go/src/runtime/sys_linux_amd64.s:563 563 MOVL AX, ret+24(FP) warning: File "/usr/local/go/src/runtime/runtime-gdb.py" auto-loading has been declined by your `auto-load safe-path' set to "/usr/share/gdb/auto-load:/usr/lib/debug:/usr/bin/mono-gdb.py". To enable execution of this file add add-auto-load-safe-path /usr/local/go/src/runtime/runtime-gdb.py line to your configuration file "/root/.gdbinit". To completely disable this security protection add set auto-load safe-path / line to your configuration file "/root/.gdbinit". For more information about this security protection see the "Auto-loading safe path" section in the GDB manual. E.g., run from the shell: info "(gdb)Auto-loading safe path" Saved corefile core.18843 |
- gcore를 통해 core 파일 생성
[root@localhost src]# gcore 18943 warning: File "/usr/local/go/src/runtime/runtime-gdb.py" auto-loading has been declined by your `auto-load safe-path' set to "/usr/share/gdb/auto-load:/usr/lib/debug:/usr/bin/mono-gdb.py". To enable execution of this file add add-auto-load-safe-path /usr/local/go/src/runtime/runtime-gdb.py line to your configuration file "/root/.gdbinit". To completely disable this security protection add set auto-load safe-path / line to your configuration file "/root/.gdbinit". For more information about this security protection see the "Auto-loading safe path" section in the GDB manual. E.g., run from the shell: info "(gdb)Auto-loading safe path" [New LWP 18947] [New LWP 18946] [New LWP 18945] [New LWP 18944] [Thread debugging using libthread_db enabled] runtime.epollwait () at /usr/local/go/src/runtime/sys_linux_amd64.s:563 563 MOVL AX, ret+24(FP) Saved corefile core.18943 |