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

[Andi Kleen]

> 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
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