proc_open(): fork failed - Cannot allocate memory

composer proc_open(): fork failed - Cannot allocate memory

解决办法：

/bin/dd if=/dev/zero of=/var/swap.1 bs=1M count=1024

/sbin/mkswap /var/swap.1

/sbin/swapon /var/swap.1

如果不行

sudo /bin/dd if=/dev/zero of=/var/swap.1 bs=1M count=1024

sudo /sbin/mkswap /var/swap.1

sudo /sbin/swapon /var/swap.1