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  1. MariaDB Server
  2. MDEV-5184

Valgrind warnings (Conditional jump or move depends on uninitialised value) on slave with slave-parallel-threads > 0

        Details

        • Type: Bug
        • Status: Closed
        • Priority: Major
        • Resolution: Fixed
        • Affects Version/s: None
        • Fix Version/s: 10.0.5
        • Component/s: None
        • Labels:
          None

          Description

          ==11897== Thread 30:
==11897== Conditional jump or move depends on uninitialised value(s)
==11897==    at 0x4C2C0BF: __GI_strcpy (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==11897==    by 0x7945DC: rpl_parallel::do_event(rpl_group_info*, Log_event*) (rpl_parallel.cc:660)
==11897==    by 0x58FBF0: exec_relay_log_event(THD*, Relay_log_info*, rpl_group_info*) (slave.cc:3347)
==11897==    by 0x5928CC: handle_slave_sql (slave.cc:4328)
==11897==    by 0x9A9B43: pfs_spawn_thread (pfs.cc:1015)
==11897==    by 0x545AE99: start_thread (pthread_create.c:308)
==11897==    by 0x619CCBC: clone (clone.S:112)

          revision-id: knielsen@knielsen-hq.org-20131024065348-t37zcjiw9mdta4kd
revno: 3683
branch-nick: 10.0-knielsen

          It's enough to run a dummy MTR test with -mysqld=-slave-parallel-threads=1 --valgrind-mysqld
          (not necessarily 1 thread, can be more):

          
--source include/master-slave.inc
--source include/have_binlog_format_row.inc

select 1;

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                relates to

                Task - A task that needs to be done. MDEV-4506 MWL#184: Parallel replication of group-committed transactions

                • Critical - Crashes, loss of data, severe memory leak.
                • Closed

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                  knielsen Kristian Nielsen added a comment -

                  Thanks! It should be fixed now in revision 3685.

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                  knielsen Kristian Nielsen added a comment - Thanks! It should be fixed now in revision 3685.

                    People

                    • Assignee:
                      knielsen Kristian Nielsen
                      Reporter:
                      elenst Elena Stepanova
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                      Dates

                      • Created:
                        Updated:
                        Resolved: