Re: Synchronizing slots from primary to standby

I have one question about the new code in v63-0002.

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src/backend/replication/logical/slotsync.c

1. ReplSlotSyncWorkerMain

+ Assert(SlotSyncWorker->pid == InvalidPid);
+
+ /*
+ * Startup process signaled the slot sync worker to stop, so if meanwhile
+ * postmaster ended up starting the worker again, exit.
+ */
+ if (SlotSyncWorker->stopSignaled)
+ {
+ SpinLockRelease(&SlotSyncWorker->mutex);
+ proc_exit(0);
+ }

Can we be sure a worker crash can't occur (in ShutDownSlotSync?) in
such a way that SlotSyncWorker->stopSignaled was already assigned
true, but SlotSyncWorker->pid was not yet reset to InvalidPid;

e.g. Is the Assert above still OK?

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Kind Regards,
Peter Smith.
Fujitsu Australia