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

Andi Kleen <[email protected]> wrote:
>
> > 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.
> 

3.2.1 works OK on x86.
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---

• References:
  • [PATCH 1/19] MUTEX: Introduce simple mutex implementation
    • From: David Howells <[email protected]>
  • Re: [PATCH 1/19] MUTEX: Introduce simple mutex implementation
    • From: Andrew Morton <[email protected]>
  • Re: [PATCH 1/19] MUTEX: Introduce simple mutex implementation
    • From: Ingo Molnar <[email protected]>
  • Re: [PATCH 1/19] MUTEX: Introduce simple mutex implementation
    • From: Andi Kleen <[email protected]>
  • Re: [PATCH 1/19] MUTEX: Introduce simple mutex implementation
    • From: Andrew Morton <[email protected]>
  • Re: [PATCH 1/19] MUTEX: Introduce simple mutex implementation
    • From: Andi Kleen <[email protected]>
  • Re: [PATCH 1/19] MUTEX: Introduce simple mutex implementation
    • From: Andrew Morton <[email protected]>
  • Re: [PATCH 1/19] MUTEX: Introduce simple mutex implementation
    • From: Andrew Morton <[email protected]>
  • Re: [PATCH 1/19] MUTEX: Introduce simple mutex implementation
    • From: Jakub Jelinek <[email protected]>
  • Re: [PATCH 1/19] MUTEX: Introduce simple mutex implementation
    • From: Andi Kleen <[email protected]>

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