我有一个现有的代码正在运行，我不得不添加一个额外的类。我尝试使用new和malloc，程序崩溃了。我已经通过分配8196字节来缩小问题范围。除此之外，我可以分配而不会崩溃。如果在第二个malloc之后调用第一个malloc，它可以正常工作并获得一个超出范围的地址
代码段：
DBGTRACE(DBG_ERR,"\n Before Alloting ISSU resrc \n");
print_status();
UINT32 * buf = (UINT32 *) ssiMalloc(sizeof(IssuResource));
DBGTRACE(DBG_ERR, "\n buf in chopperCrd: %x , size: %d\n",buf,sizeof(IssuResource));
DBGTRACE(DBG_ERR, "\n After Alloting ISSU resrc \n");
print_status();
free (buf);
mallopt(MALLOC_STATS, (int)&stat);
print_status1(&stat);
UINT32 size = CHOP_MAX_PATH_NUM * sizeof(Buffer<pathElement>);
DBGTRACE(DBG_ERR, "Allocating Buffer of size %d for paths\n", size);
mallopt(MALLOC_VERIFY,1);
void *buf = ssiMalloc(size);
memset(buf, 0, size);
mallopt(MALLOC_STATS, (int)&stat);
print_status1(&stat);
以上信息的输出 我添加了一些mallopt和mallinfo来检查问题。 当我分配8k字节时，mallinfo之前和之后如下：
Jan 01 00:00:17 nto chop_cema_app: Enable interactive mode in chop_cema_app
Jan 01 00:00:17 nto chop_cema_app: Before Alloting ISSU resrc
Jan 01 00:00:17 nto chop_cema_app: Total non-mmapped bytes (arena): 32768
Jan 01 00:00:17 nto chop_cema_app: # of free chunks (ordblks): 11
Jan 01 00:00:17 nto chop_cema_app: Total allocated space (uordblks): 6880
Jan 01 00:00:18 nto chop_cema_app: Total free space (fordblks): 25784
Jan 01 00:00:18 nto chop_cema_app: Topmost releasable block (keepcost): 0
Jan 01 00:00:18 nto chop_cema_app: **buf in chopperCrd: 4872a570** , size: 8196
Jan 01 00:00:18 nto chop_cema_app: After Alloting ISSU resrc
Jan 01 00:00:18 nto chop_cema_app: Total non-mmapped bytes (arena): 32768
Jan 01 00:00:18 nto chop_cema_app: # of free chunks (ordblks): 12
Jan 01 00:00:18 nto chop_cema_app: Total allocated space (uordblks): 15080
Jan 01 00:00:18 nto chop_cema_app: Total free space (fordblks): 17576
Jan 01 00:00:18 nto chop_cema_app: Topmost releasable block (keepcost): 0
粗体地址是Malloc返回的值。 现在，还有一个名为（之前已经存在过）的malloc，它分配了巨大的空间。第一种情况下malloc返回的地址在该范围内 - 这就是崩溃的原因。
分配前后的malloc-Stats：
Jan 01 00:00:46 nto chop_cema_app: memory in free small blocks 8632 , memory in free big blocks 111224
Jan 01 00:00:46 nto chop_cema_app: space in small blocks in use 7168 , space in big blocks in use 248784
Jan 01 00:00:46 nto chop_cema_app: size of the arena 360448
Jan 01 00:00:46 nto chop_cema_app: Allocating Buffer of size 38109696 for paths
Jan 01 00:00:47 nto chop_cema_app: memory in free small blocks 8632 , memory in free big blocks 143448
Jan 01 00:00:47 nto chop_cema_app: space in small blocks in use 7168 , space in big blocks in use 38358480
Jan 01 00:00:47 nto chop_cema_app: size of the arena 38502400
Jan 01 00:00:47 nto chop_cema_app: Line Mgr[0] Address: 0x48722d98
Jan 01 00:00:47 nto chop_cema_app: **SonetPathMgr 0 at address 0x48722d98**
谢谢，