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  1. MariaDB Server
  2. MDEV-22827

InnoDB: Failing assertion: purge_sys->n_stop == 0 in srv_purge_coordinator_suspend

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      10.2 e9dbbf112

      2020-06-07 18:38:29 139910667286272 [Note] InnoDB: FTS optimize thread exiting.
      2020-06-07 18:38:29 0x7f3f7cefa700  InnoDB: Assertion failure in file /home/mariadb/purge/10.2/storage/innobase/srv/srv0srv.cc line 2787
      InnoDB: Failing assertion: purge_sys->n_stop == 0
       
      Thread 20 received signal SIGABRT, Aborted.
      [Switching to Thread 50568.50589]
      __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
      51	../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
      (rr) bt
      #0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
      #1  0x00007f3fd52b8801 in __GI_abort () at abort.c:79
      #2  0x000055bda96095df in ut_dbg_assertion_failed (expr=0x55bda9bb19b8 "purge_sys->n_stop == 0", file=0x55bda9bb0c48 "/home/mariadb/purge/10.2/storage/innobase/srv/srv0srv.cc", 
          line=2787) at /home/mariadb/purge/10.2/storage/innobase/ut/ut0dbg.cc:60
      #3  0x000055bda95a7e51 in srv_purge_coordinator_suspend (slot=0x55bdaa305bc8 <srv_sys+328>, rseg_history_len=4) at /home/mariadb/purge/10.2/storage/innobase/srv/srv0srv.cc:2787
      #4  0x000055bda95a8149 in srv_purge_coordinator_thread (arg=0x0) at /home/mariadb/purge/10.2/storage/innobase/srv/srv0srv.cc:2864
      #5  0x00007f3fd5faf6db in start_thread (arg=0x7f3f7cefa700) at pthread_create.c:463
      #6  0x00007f3fd539988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
      

      It appears to be a very fresh regression, but without proper test case I can't guarantee it with 100% certainty.
      So far it has been observed on 10.2, the first revision it was observed on was 1bd5b75c73.

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              Assignee:
              marko Marko Mäkelä
              Reporter:
              elenst Elena Stepanova
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