编译时提示 virtual memory exhausted: Cannot allocate memory

查看 Swap 交换区

free -m

输出：

             total       used       free     shared    buffers     cached
Mem:           992        799        192          0         40        489
-/+ buffers/cache:        268        723
Swap:             0           0          0

解决办法

增加Swap交换区，可参考 https://www.zhangbj.com/p/286.html