Re: [PATCH] [20/45] x86_64: Use 8 byte stack alignment when possible

Jakub Jelinek
2007-09-21T21:19:46Z

On Fri, Sep 21, 2007 at 10:45:02PM +0200, Andi Kleen wrote:
>
> Kernel doesn't use SSE2, so it doesn't need 16 byte alignment. Also
> the stack can be already unaligned so letting the compiler align
> is useless. This may make some stack frames smaller.

Shouldn't sources that are compiled into the VDSO or VSYSCALL pages
revert this to the default?

Jakub