Merge pull request #5268 from satya-bodapati/trunk

Innovation/trunk: PS-9107 : [ERROR] [MY-013183] [InnoDB] Assertion failure: ibuf0ibuf.c…

storage/innobase/ibuf/ibuf0ibuf.cc

@@ -38,6 +38,7 @@ this program; if not, write to the Free Software Foundation, Inc.,
 #include "sync0sync.h"
 
 #include "my_dbug.h"
+#include "scope_guard.h"
 
 #if defined UNIV_DEBUG || defined UNIV_IBUF_DEBUG
 bool srv_ibuf_disable_background_merge;
@@ -3812,7 +3813,14 @@ static bool ibuf_restore_pos(
     return true;
   }
 
-  if (fil_space_get_flags(space) == UINT32_UNDEFINED) {
+  /* Check if the tablespace is dropped. */
+  fil_space_t *sp = fil_space_acquire_silent(space);
+
+  auto guard = create_scope_guard([&]() {
+    if (sp != nullptr) fil_space_release(sp);
+  });
+
+  if (sp == nullptr || sp->flags == UINT32_UNDEFINED) {
     /* The tablespace has been dropped.  It is possible
     that another thread has deleted the insert buffer
     entry.  Do not complain. */