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Re: [Xen-devel] Xen on ARM: Force register dump from guest.

On 6 June 2013 11:33, Tim Deegan <tim@xxxxxxx> wrote:
> At 20:18 +0200 on 05 Jun (1370463493), Sander Bogaert wrote:
>> My application crashes whenever I use variadic arguments, the crashes
>> are totally random and sometimes non-existent, if this would raise any
>> red flags in your brain I'd be very happy to hear some suggestions too
> In the early stages of the Xen ARM port we had intermittent problems
> with varadics when the stack pointer got misaligned -- the toolchain's
> code for laying out stack arguments assumes that the stack pointer is
> properly (i.e. 8-byte, on 32-bit ARM!) aligned to start with, and can do
> some confusing things if not.

Thank you for the suggestion. I did however verify the stack is
properly aligned in the linkerscript. I tried a bunch of things and
I'm getting nowhere so even your craziest ideas (if you have any) are
more than welcome!


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