Ludovic Courtès <l...@gnu.org> skribis: > The size of the weak set keeps growing, even when GC happens.
Commit 02e3dc6ab95fe51786b68a8200322e163f8da478 mostly addresses it: --8<---------------cut here---------------start------------->8--- $ ./meta/guile -s ~/src/guile-debugging/weak-set-growth.scm ;;; (10 #<weak-set 3517/7027>) ;;; (9 #<weak-set 10271/14051>) ;;; (8 #<weak-set 11711/14051>) ;;; (7 #<weak-set 9895/14051>) ;;; (6 #<weak-set 7697/14051>) ;;; (5 #<weak-set 11559/14051>) ;;; (4 #<weak-set 9220/14051>) ;;; (3 #<weak-set 6833/14051>) ;;; (2 #<weak-set 10637/14051>) ;;; (1 #<weak-set 8232/14051>) --8<---------------cut here---------------end--------------->8--- It turns out that the core issue is that ‘vacuum_all_weak_sets’ is only ever called a couple of times at the beginning of the execution, and that’s it. So it seems that the trick of ‘scm_i_register_async_gc_callback’ no longer works as expected. Thoughts? Incidentally, in the reproducer I posted, if you insert (gc) after (create-symbols), then the weak set grows a bit more! Which makes me wonder if we’re not leaking entries due to messed up disappearing links or something. Ludo’.