Re: 2.6.11.8 + UML/x86_64 (2.6.12-rc3+) = oops

From: Jeff Dike
Date: Sun May 08 2005 - 11:48:19 EST


On Sun, May 08, 2005 at 05:15:36PM +0200, Andi Kleen wrote:
> Antoine Martin <antoine@xxxxxxxxxxxxx> writes:
> Ok, the bug is found now. It is a kernel bug that it allows to set
> non canonical addresses in 64bit segment registers through ptrace.
>
> But even if I fixed that then it will not help you run UML, because
> UML needs to set correct addresses of course, not illegal ones.

True, but if the host stays up, and maybe printks something (or even returns
-EIO), that would help track down the UML problem.

Jeff
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