The check (boot_cpu_data.x86 == 3) in atomic_add_return() and local_add_return() fails, when those operations are used before boot_cpu_data is filled in.
Change the check to (boot_cpu_data.x86 <= 3) to fix this. Signed-off-by: Thomas Gleixner <[EMAIL PROTECTED]> Index: linux-2.6/include/asm-i386/atomic.h =================================================================== --- linux-2.6.orig/include/asm-i386/atomic.h +++ linux-2.6/include/asm-i386/atomic.h @@ -182,7 +182,7 @@ static __inline__ int atomic_add_return( int __i; #ifdef CONFIG_M386 unsigned long flags; - if(unlikely(boot_cpu_data.x86==3)) + if(unlikely(boot_cpu_data.x86 <= 3)) goto no_xadd; #endif /* Modern 486+ processor */ Index: linux-2.6/include/asm-i386/local.h =================================================================== --- linux-2.6.orig/include/asm-i386/local.h +++ linux-2.6/include/asm-i386/local.h @@ -135,7 +135,7 @@ static __inline__ long local_add_return( long __i; #ifdef CONFIG_M386 unsigned long flags; - if(unlikely(boot_cpu_data.x86==3)) + if(unlikely(boot_cpu_data.x86 <= 3)) goto no_xadd; #endif /* Modern 486+ processor */ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/