1 ./shell[10]: ./x86/: cannot execute [is a directory]
2 ./shell[13]: ./shell.vgtest: cannot execute [Permission denied]
3 execve(0x........(./shell_badinterp), 0x........, 0x........) failed, errno 2
4 EXEC FAILED: I can't recover from execve() failing, so I'm dying.
5 Add more stringent tests in PRE(sys_execve), or work out how to recover.
6 ./shell_binaryfile: ./shell_binaryfile: cannot execute [Exec format error]
7 ./shell[22]: ./shell_nosuchfile: not found [No such file or directory]
8 ./shell[25]: shell_nosuchfile: not found [No such file or directory]