On Fri, Nov 20, 2009 at 11:52:36PM +0100, Aurelien Jarno wrote: > 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. >
I am wrong on that, I compared squeeze and sid versions, which both fails. Here are the results for the last few versions: 4.4.1-4: fail (glibc 2.9) (squeeze) 4.4.1-5: fail (glibc 2.9) 4.4.1-6: fail (glibc 2.9) 4.4.2-1: pass (glibc 2.9) 4.4.2-2: fail (glibc 2.10) (sid) -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurel...@aurel32.net http://www.aurel32.net -- To UNSUBSCRIBE, email to debian-gcc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
