module loading issue/flaw in busy memory situation?

DISCUSSION Steffen Rumler 1 participant 1 message May 25, 2012

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Steffen Rumler

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2012-05-25 08:14 UTC #0 lore raw

Hi,

The basic question is, has the GPR r11 a dedicated function (to point to the previous stack frame) or is it still a volatile GPR, according to EABI definition ?
In the case of a dedicated function was assigned, the trampoline code generation in

arch/powerpc/kernel/module_32.c

must be corrected. I'd suggest to use r12 instead of r11, in this case.

Best Regards
Steffen