kernel panic during kernel module load (powerpc specific part)

Paul Mackerras paulus at
Mon Jun 4 20:53:55 EST 2012

On Mon, Jun 04, 2012 at 09:43:01AM +0200, Steffen Rumler wrote:
> Let me summarize the situation:
>    + According to Freescale, EABI assigns a dedicated function to register r11.
>    + The ELF sections .text and .init.text may trigger the usage of the trampoline code.
>    + The trampoline code must not user register r11, too.
>    + We must not depend on addresses returned by vmalloc during kernel module loading.
> I think the bug must be fixed !!!

I agree.  If you submit your patch with a nice description of the
problem and how the patch fixes it, along with your Signed-off-by,
I'll send it upstream.


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