Public bug reported:

I put together a script called reproduce-bug.sh that does all the work
for you.

This script doesn't require sudo or other enhanced proviledges to run.
Basically you run the script in an empty directory writeable by you, and
it will git clone v3c and treedb into their own
folders and create a "sandbox" folder to install them to.
Then it will "make && make install" the packages into the sandbox.

You run it as

   sh reproduce-bug.sh treedb

These packages aren't large and with a 1-2GHz machine with broadband
you should get to the "problem" prompt in < 2 minutes.

The problem stage is running "make check" in treedb, so there's a prompt
asking you to <Ctrl>-C to abort, enter to proceed.

If you can reproduce the bug it will note the test failures for you to
compare.

Running the tests on Debian/Squeeze's gcc/g++ 4.4.5 succeeds, as it does
with gcc/g++ 4.5.2 on ubuntu (I built it from source).

This may lead to the cause of the following more serious problems:

   linux-image-2.6.32-5-amd64: kernel freeze
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=607495

and

   system instability caused by unpriviledged program
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/692100

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: g++ 4:4.4.4-1ubuntu2
ProcVersionSignature: Ubuntu 2.6.32-26.48-generic 2.6.32.24+drm33.11
Uname: Linux 2.6.32-26-generic x86_64
Architecture: amd64
Date: Sun Dec 19 03:23:14 2010
ProcEnviron:
 LANGUAGE=
 LANG=en_IE.utf8
 SHELL=/bin/bash
SourcePackage: gcc-defaults

** Affects: gcc-defaults (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug maverick

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https://bugs.launchpad.net/bugs/692104

Title:
  g++ generates bad code

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