ok, thanks to Maarten's debugging we've found the issue. listener->grab is not copied but rather referenced, leaving the grab stale once it was deleted. Reproducible test case is simply:
XGrabButton() pointer-emulating touch down XUngrabButton() trigger touch update/end This doesn't necessarily crash, but once you run through valgrind to reset memory after freeing it we have a reliable crasher. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1068994 Title: button1 gets stuck after a while To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1068994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
