Re: [PATCH 1/19] MUTEX: Introduce simple mutex implementation

Andi Kleen
2005-12-13T10:12:14Z

> Guess
>
> #if __GNUC__ == 3 && __GNUC_MINOR__ < 3
> #error Your compiler is too buggy; it is known to miscompile kernels.
> #error Known good compilers: 3.3, 3.4, 4.0
> #endif
>
> would be better. __GNUC__ < 2 will certainly be errored about in other
> places and it is bad to suggest compilers that are no longer supported
> as known good ones.

Are there really any known serious miscompilation with 3.1/3.2?
(I knew it used to miscompile some loops on x86-64, but I think I worked
around all that)

Preventing SLES9 and RHEL3 users from easily compiling new kernels
isn't good.

-Andi