core文件输出：
(gdb) bt #0 0x0000003143c0c69c in pthread_kill () from /lib64/libpthread.so.0 #1 0x00000000006643f2 in handle_fatal_signal (sig=6) at xxxxx/sql/signal_handler.cc:247 #2 <signal handler called> #3 0x00000031434328a5 in raise () from /lib64/libc.so.6 #4 0x0000003143434085 in abort () from /lib64/libc.so.6 #5 0x00000031434707b7 in __libc_message () from /lib64/libc.so.6 #6 0x00000031434760e6 in malloc_printerr () from /lib64/libc.so.6 #7 0x00000000007d680d in deallocate (this=0x13df740, stKey=..., pBlock=0x7f53ac102d50) at /usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../../include/c++/4.4.6/ext/new_allocator.h:95 #8 _M_put_node (this=0x13df740, stKey=..., pBlock=0x7f53ac102d50) at /usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../../include/c++/4.4.6/bits/stl_list.h:320 #9 _M_erase (this=0x13df740, stKey=..., pBlock=0x7f53ac102d50) at /usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../../include/c++/4.4.6/bits/stl_list.h:1431 #10 pop_back (this=0x13df740, stKey=..., pBlock=0x7f53ac102d50) at /usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../../include/c++/4.4.6/bits/stl_list.h:946 #11 MY_CODE......................................
自己的代码就是在弹出list里的东西。调查后发现是列表为空了还继续想弹，就完蛋了。
std::list.pop_back() 弹空了列表导致的崩溃
原文：http://www.cnblogs.com/szlx/p/core_for_empty_list_pop_back.html