Jurij Smakov <ju...@wooyd.org> writes: > On Mon, Aug 8, 2022 at 9:50 AM Göran Weinholt <go...@weinholt.se> wrote: > > @Jurij: What happens if you update your libc6, could you give it a try? > It would be good to get confirmation that the bug was in libc6. > > I can confirm that upgrading libc6 (in my case, to Debian's 2.34-3 package) > fixes the problem.
Thank you very much. There is the possibility that libc6 2.34 just hides the problem. Adam Jackson wrote: | glibc 2.34 merged several libraries into libc.so.6, including | libpthread, which would probably explain that. <https://gitlab.freedesktop.org/xorg/lib/libx11/-/issues/157#note_1500695> I have a suggested fix for libX11 here, which adds -pthread to the compilation and linking commands: <https://gitlab.freedesktop.org/weinholt/libx11/-/commit/a8d4cbc3a46e625c6c4fb4120d2fff56eebcf91c> It seems harmless, but I've tested it very little. The discussion is complicated a bit by the fact that there are clients with genuine bugs (calls to libX11 during event processing), and other clients that break just because they themselves don't build with -pthread. Either way, notion (and glxgears, etc) stopped working because Debian sid for a short while had glibc 2.33 and a libx11 that called XInitThreads() without using -pthread, resulting in pthread mutexes being used when uninitialized. Regards, -- Göran Weinholt | https://weinholt.se/ Debian Developer | 73 de SA6CJK
