kernel 3.4.14 shebang problem? [SOLVED]

[fpemud]

I'm using sys-kernel/dracut-037-r2 and sys-kernel/gentoo-sources-3.14.4.

When I boot the initrd created by dracut[systemd], there's an execution failure of "dracut-rootfs-generator.sh", the reason is "exec format error".
When I boot the initrd created by dracut[-systemd], there's a more serious execution failure of "/init", the reason is "-8" which is ENOEXEC that is also "exec format error".

Both of them is shell script with shebang "#!/bin/sh".
In initrd, "/bin/sh" exists as a symlink points to /bin/bash, so no problem for it.

It's really weird why the linux kernel emit this error.
It seems that my kernel does not support shebang anymore, is there any kernel config related to this?

[Hu]

Yes, but if I recall correctly, it defaults to on and has some pretty explicit help text. Unless you go around manually disabling core features, it is unlikely that this is the reason. The feature is controlled by CONFIG_BINFMT_SCRIPT.

[fpemud]

The reason is that I select CONFIG_BINFMT_SCRIPT as M.
Thanks.