Re: CVS commit: src/sys/arch/amd64/amd64

[Joerg Sonnenberger <joerg%britannica.bec.de@localhost>]

On Mon, May 12, 2014 at 01:49:24PM +0000, Masao Uebayashi wrote:
> Module Name:  src
> Committed By: uebayasi
> Date:         Mon May 12 13:49:24 UTC 2014
> 
> Modified Files:
>       src/sys/arch/amd64/amd64: machdep.c
> 
> Log Message:
> Don't reserve space (128) on signal stack for unknown reasons; the actual
> space for struct sigframe_siginfo (+ alignment) is allocated just below.

AMD64 uses a redzone, so the compiler can put up to 128 Bytes on the
stack without having to adjust RSP. Please revert immediately.

Joerg