On Thu, May 22, 2008 at 07:02:49PM +0200, Benedict Verheyen wrote:
> I tried and i got this error when starting the UML:
> arch_switch_tls failed, errno = EINVAL
> PTRACE_SET_THREAD_AREA failed, err = -22, index = 0
> PTRACE_SET_THREAD_AREA failed, err = -22, index = 0
> arch_switch_tls failed, errno = EINVAL
> PTRACE_SET_THREAD_AREA failed, err = -22, index = 0
> arch_switch_tls failed, errno = EINVAL
>
> and it keeps printing that.
>
> I used kernel 2.6.25.4 with the latest skas patch and left all the
> options the same. Host is kernel 2.6.24.3 with the previous skas patch.
>
> I made my guest kernel with these commands:
> make menuconfig ARCH=um
> make-kpkg --arch=um clean
> make-kpkg --arch=um --append-to-version=.22may2008 kernel_image
> modules_image
This is a stock 2.6.25.4 you've using dpkg to build? If not, could
you build a kernel.org kernel?
If you see this with a stock kernel, any chance you can bisect it? I
don't see any suspicious tls-related things between 2.6.24 and
2.6.25. There are ~100 changes in arch/um between 2.6.24 and 2.6.25,
so if you restrict the bisection to arch/um, it should take 6-7
compiles to find the commit which broke it.
Jeff
--
Work email - jdike at linux dot intel dot com
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