On Fri, Nov 20, 2009 at 05:44:25PM -0500, Carlos O'Donell wrote: > On Fri, Nov 20, 2009 at 10:31 AM, Aurelien Jarno <aurel...@aurel32.net> wrote: > > Domenico Andreoli a écrit : > >> On Thu, Nov 05, 2009 at 06:47:11PM +0100, Domenico Andreoli wrote: > >>> On Thu, Nov 5, 2009 at 5:43 PM, Matthias Klose <d...@debian.org> wrote: > >>>> On 05.11.2009 14:30, Domenico Andreoli wrote: > >>>>> frankly i do not know what to do next, besides trying to rebuild gcc-4.4 > >>>>> 4.4.2-1 with latest eglibc to see if it is the culprit > >>>> or rebuild against eglibc-2.9. could you do this as a test? > >>> yes, build started > >> > >> the gcc 4.4.2-2 built with eglibc 2.9-25 has not the problem and current > >> gcc 4.4.2-1 is built with eglibc 2.9-26 [0]. should i try building > >> 4.4.2-1 with eglibc 2.10.1-5 or are we convinced it is NPTL? > > > > At least we are convinced it's eglibc 2.10.1, not 100% sure it is due to > > NPTL. > > > > I have done some more tests, showing it's a bit more complicated than > > that. apt-get from stable/testing/unstable: > > - works with libstdc++6 built against eglibc 2.9 > > - segfaults with libstdc++6 built against eglibc 2.10.1 > > > > Then I tried to rebuild apt against the "broken" libstdc++6. > > Surprisingly this new apt-get: > > - works with libstdc++6 built against eglibc 2.10.1 > > - segfaults with libstdc++6 built against eglibc 2.9 > > > > So in short, it seems that using eglibc 2.10.1 to build libstdc++6 > > triggers an ABI change on this library. I haven't investigated more for > > now, I am not sure when I'll have time to do it. > > This is not surprising, Dave has already pointed out that the debian > libstdc++6 testsuite run clearly has an ABI failure e.g. > ~~~ > FAIL: abi_check > ~~~ >
This test actually fails for both old and new version, I actually don't know for how long it fails. Also comparing the two versions with the extract_symvers scripts from gcc sources doesn't show any difference. Looks like the problem is a bit more complex than it seems. -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurel...@aurel32.net http://www.aurel32.net -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
