On 04/22/2010 02:24 PM, Roland McGrath wrote:
> The only thing to touch thte related code since 0.144 was commit ee29a31.
> That fixed a bug that most likely prevented most of the CFI code from being
> used in this case.  (That bug caused a false-positive error detection and
> bail out before trying to use the CFI.)  So I'd guess that reverting this
> change does avoid the failure you're seeing now, but only because it masks
> a bug that never got exercised before.  That's just a guess.

Sure enough. :)

> I'm updating my 32-bit install now and assuming I can then reproduce it,
> I'll look into this ASAP.

Just to update, Roland and I narrowed down what stap was doing, and he
got this simpler test to fail:

  tests/addrcfi -e /usr/bin/stap 0x183f1


Josh
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