After digging a bit into it, I found that the main thread is waiting for another thread. Then between these two threads (called "multiqueue6:src") a deadlock appears to happen. I appended gdb output showing the backtrace of both the locked threads and the main thread.
** Attachment added: "debuginfo.txt.gz" https://bugs.launchpad.net/ubuntu/+source/amarok/+bug/1856745/+attachment/5313649/+files/debuginfo.txt.gz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1856745 Title: Amarok freezes while playing music To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/amarok/+bug/1856745/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs