求高手解决list remove崩溃问题

zhangruichao88

今天循坏跑程序，出现这个错误，求高手解答错误是怎么引起的？


Core was generated by `./audit'.
Program terminated with signal 11, Segmentation fault.
#0  0x08053437 in std::list<Thread*, std::allocator<Thread*> >::remove (this=0x82ff0c0, __value=@0xb2540394)
    at /usr/lib/gcc/i386-redhat-linux/4.1.2/../../../../include/c++/4.1.2/bits/list.tcc:182
182                  if (*__first == __value)
(gdb) bt
#0  0x08053437 in std::list<Thread*, std::allocator<Thread*> >::remove (this=0x82ff0c0, __value=@0xb2540394)
    at /usr/lib/gcc/i386-redhat-linux/4.1.2/../../../../include/c++/4.1.2/bits/list.tcc:182
#1  0x080532ed in ThreadPool::RemoveThread (this=0x82ff008, thread=0x83023a0) at threadpool.cpp:307
#2  0x080533b9 in ThreadPool::WapperFun (arg=0x83023a0) at threadpool.cpp:239
#3  0x006fb2db in start_thread () from /lib/libpthread.so.0
#4  0x0065514e in clone () from /lib/libc.so.6
Current language:  auto; currently c++

hellioncu

就给这点信息让猜原因么？我猜线程安全问题

zhangruichao88

回复 2# hellioncu

求高手解答，出现这种错误，直接原因，是因为list 里指针改变了吗


   

hellioncu

zhangruichao88 发表于 2015-03-18 16:14
回复 2# hellioncu

求高手解答，出现这种错误，直接原因，是因为list 里指针改变了吗

你这个错就是指针失效了，指向无效的内存地址，还去访问就错了

littledick

我猜是哪个成员变量保存了迭代器地址，之后其他函数调用变动过迭代器没有通知修改变量，然后把失效的迭代器拿来操作。

sundae333

迭代器失效吧  我之前也出现这种原因 是因为多线程操作同一个list 锁没有加好导致的