Re: 回复: Fix segfault while accessing half-initialized hash table in pgstat_shmem.c

On Thu, Sep 04, 2025 at 02:31:34AM +0000, Steven Niu wrote:
> If pgstat_init_entry() errors on OOM, what would it returns to shheader, NULL?
> That would bring trouble to dshash_delete_entry().

Based on the proposal of patch 0002, the code would throw an error
after cleaning up the shared memory state.  The generation and
refcount number assigned inside pgstat_init_entry() would not matter
as well because the entry created by dshash_find_or_insert() would be
entirely gone.  So I am not sure what's the point you are trying to
make here.
--
Michael