Same error attempting to upgrade from wheezy to sid:
Starting program: /usr/bin/apt-get dist-upgrade
warning: Could not load shared library symbols for linux-vdso.so.1.
Do you need "set solib-search-path" or "set sysroot"?
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7b9e8b9 in Configuration::Lookup(Configuration::Item*, char const*, unsigned long const&, bool const&) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#0 0x00007ffff7b9e8b9 in Configuration::Lookup(Configuration::Item*, char const*, unsigned long const&, bool const&) ()
from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
No symbol table info available.
#1 0x00007ffff7b9ea24 in Configuration::Lookup(char const*, bool const&) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
No symbol table info available.
#2 0x00007ffff7b9f12d in Configuration::FindI(char const*, int const&) const () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
No symbol table info available.
#3 0x00007ffff7b1b7e4 in pkgPackageManager::SmartUnPack(pkgCache::PkgIterator, bool, int) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
No symbol table info available.
#4 0x00007ffff7b1ca0d in pkgPackageManager::SmartUnPack(pkgCache::PkgIterator, bool, int) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
No symbol table info available.
#5 0x00007ffff7b1bf2f in pkgPackageManager::SmartUnPack(pkgCache::PkgIterator, bool, int) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
No symbol table info available.
#6 0x00007ffff7b1ca0d in pkgPackageManager::SmartUnPack(pkgCache::PkgIterator, bool, int) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
...