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SubjectRe: 2.6.8 and 2.6.9 Dual Opteron glitches
On Wed, Nov 03, 2004 at 11:53:05AM +0100, Daniel Egger wrote:
> On 03.11.2004, at 06:06, Andi Kleen wrote:
>
> >> Replacing those panic(s) by printk make the machine boot just fine
> >> and also work (seemingly) without any problems under load.
>
> >Can you print the two values? I've never seen such a problem.
> >If it works then they must be identical, otherwise user space would
> >break very quickly.
>
> printk("%p %p %p\n", (unsigned long) &vgettimeofday, &vgettimeofday,
> VSYSCALL_ADDR(__NR_vgettimeofday));
>
> ffffffffff600000 ffffffffff600000 ffffffffff600000
>
> I've no idea why it still triggers. Also the next one BTW:
> vtime link addr brokenIA32
>
> The compiler is: gcc version 3.4.0 20040111 (experimental)

Looks like a compiler bug. I would talk to the gcc people.

-Andi
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