diff --git a/src/osd/OSD.cc b/src/osd/OSD.cc
index 6b592ff85bf..591c019d969 100644
--- a/src/osd/OSD.cc
+++ b/src/osd/OSD.cc
@@ -8440,6 +8440,11 @@ bool OSD::advance_pg(
 	  pg->write_if_dirty(rctx);
 	  dispatch_context(rctx, pg, pg->get_osdmap(), &handle);
 	  pg->ch->flush();
+	  // release backoffs explicitly, since the on_shutdown path
+	  // aggressively tears down backoff state.
+	  if (pg->is_primary()) {
+	    pg->release_pg_backoffs();
+	  }
 	  pg->on_shutdown();
 	  OSDShard *sdata = pg->osd_shard;
 	  {
diff --git a/src/osd/PG.h b/src/osd/PG.h
index 1ed490a0a9a..d1d4b124144 100644
--- a/src/osd/PG.h
+++ b/src/osd/PG.h
@@ -1085,11 +1085,13 @@ protected:
     hobject_t end = info.pgid.pgid.get_hobj_end(pool.info.get_pg_num());
     add_backoff(s, begin, end);
   }
+public:
   void release_pg_backoffs() {
     hobject_t begin = info.pgid.pgid.get_hobj_start();
     hobject_t end = info.pgid.pgid.get_hobj_end(pool.info.get_pg_num());
     release_backoffs(begin, end);
   }
+protected:
 
   // -- scrub --
 public: