中断系统调用posix_memalign
问题描述：
我得到这个例外有posix_memalign。任何想法，为什么我们得到它？
I am getting this exception with posix_memalign. Any idea as to why we get it?
先谢谢了。
答
此问题已解决的问题：事情是对齐边界应该是2的倍数和的sizeof（无效*）。所以，如果posinter大小为4个字节，第二个参数应该是4，8，16等相反，我是把它作为唯一的2的倍数，因此它崩溃。
The issue is resolved: The thing is the alignment boundary should be a multiple of 2 and sizeof(void *). So if posinter size is 4 bytes, the second argument should be 4, 8, 16 etc. Instead of that i was putting it as only multiple of 2, and hence it was crashing.
Wrong usage: crashes
posix_memalign(&addr, 2, 8);
Correct usage:
posix_memalign(&addr, 4, 8); // Second argument multiple of void* and 2