Re: [PATCH LINUX v5] xen: event channel arrays are xen_ulong_t andnot unsigned long

From: Will Deacon
Date: Tue Mar 05 2013 - 03:09:18 EST


On Tue, Mar 05, 2013 at 06:55:46AM +0000, Rob Herring wrote:
> > I also can't immediately see why GCC would allocate oldval to an odd base
> > register. Can you share your .config please?
> >
>
> Here's a config:

[...]

Cheers Rob, that was enough to reproduce for me. The problem is likely that
CONFIG_AEABI=n, so the ABI doesn't actually mandate even base registers for
64-bit values in registers.

Ian -- this would be fixed if you used our atomic64 routines instead of
inventing your own :)

Will
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