Bug 217986

Summary: ODEBUG: integrate with ref_tracker
Product: Memory Management Reporter: Dmitry Vyukov (dvyukov)
Component: SanitizersAssignee: MM/Sanitizers virtual assignee (mm_sanitizers)
Status: NEW ---    
Severity: enhancement CC: eric.dumazet, kasan-dev, tglx
Priority: P3    
Hardware: All   
OS: Linux   
Kernel Version: Subsystem:
Regression: No Bisected commit-id:

Description Dmitry Vyukov 2023-10-07 12:09:24 UTC 
include/linux/ref_tracker.h provides ref_tracker/ref_tracker_dir types that can be used to detect a number of bug types related to reference counters (leaks, double frees, etc) with actionable diagnostics.

There may be value in integrating ref_tracker/ref_tracker_dir with debug objects. At least to detect when active ref_tracker/ref_tracker_dir are freed. Currently there is ref_tracker_dir_exit() that needs to be called manually. And there does not seem to be a function for checking freeing of active ref_tracker objects.