On Aug 4, 2008, at 8:48 AM, Martin Mathieson wrote:

> ukeng7 martinm main : cat /proc/cpuinfo
> processor       : 0
> vendor_id       : GenuineIntel
> cpu family      : 15
> model           : 4
> model name      : Intel(R) Pentium(R) 4 CPU 2.40GHz

No more registers than the Ubuntu buildbot, and possibly fewer if
that's not an EM64T^WIntel64-capable Pentium 4 (or if it is but you're
not building it 64-bit).  It might be that the older compiler's
dataflow analysis isn't as sophisticated.

> Would checking in a change to make next_tvb be volatile (or even
> static, as I had it) be acceptable?

If volatile fixes the problem, that's the right fix; go ahead and
check that in.

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