环境：win7 64位
Error: Could not fork child process: Resource temporarily unavailable (-1).
DLL rebasing may be required; see ‘rebaseall / rebase –help’.
问题现象 ： 在安装Git64位后，运行gitbash一直报错，failed to fork child process no such file or directory，dll rebasing may be required
具体是进入Git安装目录
如C:\Program Files\Git\usr\bin
将 msys-2.0.dll拷贝到上一级目录，
然后在原来的usr\bin目录下执行下面命令
rebase -b 0x76000000 ..\msys-2.0.dll
rebase -b 0x30000000 ..\msys-2.0.dll
然后再拷贝回去替换这个DLL文件