测试反馈，core了。
拿到环境，发现6和11，一个是重复释放，一个是非法指针。
用GDB一挂 ，发现
1 GNU gdb (GDB) 7.5 2 Copyright (C) 2012 Free Software Foundation, Inc. 3 License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> 4 This is free software: you are free to change and redistribute it. 5 There is NO WARRANTY, to the extent permitted by law. Type "show copying" 6 and "show warranty" for details. 7 This GDB was configured as "XXX". 8 For bug reporting instructions, please see: 9 <http://www.gnu.org/software/gdb/bugs/>... 10 Reading symbols from /usr/bin/XXX...(no debugging symbols found)...done. 11 BFD: Warning: /tmp/core_XXX_11 is truncated: expected core file size >= 8536064, found: 5242880.
然后看一下寄存器：
1 (gdb) i r 2 zero at v0 v1 3 R0 0000000000000000 ffffffff802308b8 000a0a0400000028 000000ffee98c8f8 4 a0 a1 a2 a3 5 R4 000a0a0400000029 000000012e96dda1 0000000000000004 000000012e96dda4 6 a4 a5 a6 a7 7 R8 0000000000000300 0000000000000000 000a130400000002 140400015b281504 8 t0 t1 t2 t3 9 R12 0000000000000000 1304000000021404 000000fff153f350 000000fffff002b0 10 s0 s1 s2 s3 11 R16 000000012e9723b0 0000000000000004 000a0a0400000028 00000000000000d0 12 s4 s5 s6 s7 13 R20 000000ffee9a4000 000000ffee98c8f0 0000000000000000 fffffffffffffffe 14 t8 t9 k0 k1 15 R24 000000fff15370f8 000000fff10f1af0 0000000000000000 0000000000000000 16 gp sp s8 ra 17 R28 000000fff03f0370 000000fffff00590 000000fffff005cc 000000fff03a2670 18 sr lo hi bad 19 000000004000f8f3 0000000000000510 0000000000000000 000a0a0400000028 20 cause pc 21 ffffffff8080000c 000000fff10f1bc4 22 fsr fir 23 00000000 00000000
sp，ra都是非法指针，How to do?