In the process of embedded development, often will encounter all sorts of problems resulting in abnormal process exits, so want to try using the Linux coredump function to help debug, but now the problem is that use busybox open coredump function failure, embodied in that set the busybox sh -c 'ulimit -c unlimited', use busybox sh -c 'ulimit -c' command to view, the value is 0, the/proc/sys/kernel/core_pattern and/proc/sys/kernel/core_uses_pid file is



I opened the CONFIG_COREDUMP=y in the kernel, opened in the busybox CONFIG_FEATURE_INIT_COREDUMPS=y

Have which friend is cooked, for this is my short of what features