/bin/dd if=/dev/zero of=/var/swap.1 bs=1M count=1024
/sbin/mkswap /var/swap.1
/sbin/swapon /var/swap.1
参考文档https://getcomposer.org/doc/articles/troubleshooting.md#proc-open-fork-failed-errors
/bin/dd if=/dev/zero of=/var/swap.1 bs=1M count=1024
/sbin/mkswap /var/swap.1
/sbin/swapon /var/swap.1
参考文档https://getcomposer.org/doc/articles/troubleshooting.md#proc-open-fork-failed-errors