Bug#534312: upgrade of libc6 causes SEGFAULTs

[Ulf Hermann <ulf_hermann@gmx.net>]

> You say you are using libc6 from unstable on a lenny system. What is the
> list of packages you tried to upgrade? 

I tried to install a full KDE 4.2, that's quite a lot of packages and some of
them depend on the newer libc - I don't know which ones. Yet, that's not
necessary to reproduce the bug. I reverted everything to plain lenny (without
any KDE). Then everything was OK again. Then I noticed that menu itself is the
same in lenny and unstable and ran ldd on it to find out what might be
responsible for the crash. Then I _only_ upgraded libc and locales (like stated
above) and that's enough to make update-menus crash.

Now that I think about it, update-menus should also crash in plain sid ... if it
doesn't some interaction with another library might be responsible. There aren't
many possibilities:

alve@schaf:~$ ldd /usr/bin/update-menus
        linux-vdso.so.1 =>  (0x00007fffdaffe000)
        libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00007f2fd2931000)
        libm.so.6 => /lib/libm.so.6 (0x00007f2fd26ae000)
        libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00007f2fd2497000)
        libc.so.6 => /lib/libc.so.6 (0x00007f2fd2144000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f2fd2c3d000)
alve@schaf:~$

And especially libstdc++ is also in the backtrace. I just tried updating
libstdc++* in addition to libc6 and that still makes update-menus crash. So, I'm
out of ideas for now.