On Thu, 16 May 2024 17:14:26 -0700 Thiago Macieira <thiago.macie...@intel.com> wrote:
> On Thursday 16 May 2024 09:55:39 GMT-7 Ilya Fedin wrote: > > Dimitris seem to have a problem writing to the list right now but > > what he found is that running the tests under gdb makes them not > > hang. Perhaps this means that it's not X server who haven't replied > > but Xlib (or libc/kernel?) who fails to notice the reply? > > Yes, it could be a race condition inside libX11. > > I know libxcb is designed to not have globals, but I am not so sure > about libX11. libxcb's .data + .bss is a mere 0xa8 bytes, while > libX11's is 0x38e8. That's a lot of global data. > > So it's entirely possible that GDK isn't getting the reply it needs > because that reply was sent to our Display and connection and thus > handled by our thread. > I reproduced it, it was the lack of QXcbXSettings contructor being called. idk how and why the lack of it being called leads to the problem but the moment I reproduced it, entire GUI has frozen. I had to switch to tty and kill the test to unfreeze the X session. -- Development mailing list Development@qt-project.org https://lists.qt-project.org/listinfo/development
