Partly fixes <https://bugs.gnu.org/28590>.
* libguile/weak-table.c (resize_table): Remove all disappearing links on OLD_ENTRIES, and reset all of OLD_ENTRIES. --- libguile/weak-table.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/libguile/weak-table.c b/libguile/weak-table.c index 599c4cf0e..a0bebca5e 100644 --- a/libguile/weak-table.c +++ b/libguile/weak-table.c @@ -498,11 +498,19 @@ resize_table (scm_t_weak_table *table) scm_t_weak_entry copy; unsigned long new_k, distance; + /* Make sure we don't leave a disappearing link behind us. + See <https://github.com/ivmai/bdwgc/issues/182>. */ + unregister_disappearing_links (&old_entries[old_k], table->kind); + if (!old_entries[old_k].hash) - continue; - + { + old_entries[old_k].key = old_entries[old_k].value = 0; + continue; + } + copy_weak_entry (&old_entries[old_k], ©); - + old_entries[old_k].key = old_entries[old_k].value = 0; + if (!copy.key || !copy.value) continue; -- 2.14.2