On Mon, May 25, 2020 at 04:10:49PM +0200, Marc Espie wrote: > Here's another one... > I went back to 19.12.31 > > and installed the debug-qt* packages (somehow they weren't around last > time). > > > It's still the exact same bug. > > > By adding printing, that "name" parameter is complete garbage each and > every time. Sometime, we get "lucky" and it doesn't segfault. > > It always comes from within qml (qtquick?) internals, which makes me > belive something is wrong in there. > > I fail to see how it would work on other OSes otherwise. >
A bit of help from friends (tb/sthen) shows it is definitely a use-after-free. Indeed, using MALLOC_OPTIONS=j lets shotcut run. Everything appears to be more or less functional, including position filters, video fade-in/out. So... no idea where the use-after-free is, but at least I got it running (more or less...)