Comment 2 for bug 897583

As you can see on the upstream bug report, this bug has now been confirmed to be generally affecting gcc-4.6, not just on Ubuntu, so my guess about distribution-specific patches likely was wrong. RedHat was unaffected because of having disabled a particular optimization for debugging reasons.

The bug has been given the status of a P1 regression, meaning that gcc 4.7 won't be released without a fix for it. There is a target milestone of gcc-4.6.3 for the fix in the 4.6 series.