Display stack information on the simulator

When debugging on the simulator, you often encounter memory access errors as follows:

 
2012-02-14 11:21:11.41APP [2433:205] ***-[Test retain]: Message sent to deallocated instance0x11e4fb
 

1. After mallocstacklogging is set (you can view and set nszombieenabled and mallocstacklogging)

Enter the info malloc-history command on the terminal, as shown below:

 
(GDB) info malloc-History0x11e4fb
 

Where0x11e4fb is the error address to obtain the stack information.

2. In addition, there is another command:

(GDB) Shell malloc_history2433 0x11e4fb
 

Where 2433 is the first part of the process name