Hi Sergey, I was looking at the many failures we have in the jaunty-x86-valgrind host in Buildbot ... I was wondering if you could install the `libc6-dbg' package? sudo apt-get install libc6-dbg Assuming it works as in Ubuntu Hardy, this should give proper symbols in the Valgrind stack traces, so that the bogus warnings from libc internals are suppressed (or we can add meaningful suppressions for any remaining problems). - Kristian.