We occasionally fix these kinds of bugs, likeGH-102356. However, the fix by adding the "trashcan" macros to the tp_dealloc method only fixes that specific type. It would be better to have a more generic fix. A crash due to the C stack overflow leaves the user mystified as to what the problem is and these kinds of bugs could be hard to reproduce (requiring long chains of objects calling tp_dealloc recursively).

Linked PRs

• GH-124715: trashcan protection for all GC objects #124716
• GH-124715: Move trashcan mechanism intoPy_Dealloc #132280
• gh-124715: Fix method_dealloc(): use PyObject_GC_UnTrack() #133199
• Revert "gh-124715: Fix method_dealloc(): use PyObject_GC_UnTrack() (#133199)" #133434