main.processlist fails sporadically in buildbot

Description

http://buildbot.askmonty.org/buildbot/builders/win32-debug2/builds/6568/steps/test/logs/stdio

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 main.processlist [ fail ] Test ended at 2014-11-24 05:14:33 CURRENT_TEST: main.processlist --- C:/bzr/bb-win32/win32-debug2/build/mysql-test/r/processlist.result 2014-10-29 01:18:28.187152000 -0700 +++ C:\bzr\bb-win32\win32-debug2\build\mysql-test\r\processlist.reject 2014-11-24 05:14:30.816286800 -0800 @@ -12,5 +12,5 @@ 0 select command, time < 5 from information_schema.processlist where id != connection_id(); command time < 5 -Sleep 1 +Query 0 set debug_sync='reset'; mysqltest: Result content mismatch

Variation with ps-protocol:
http://buildbot.askmonty.org/buildbot/builders/kvm-dgcov-jaunty-i386/builds/4530/steps/test_3/logs/stdio

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 main.processlist w2 [ fail ] Test ended at 2014-12-22 01:07:55 CURRENT_TEST: main.processlist --- /home/buildbot/build/mysql-test/r/processlist.result 2014-12-21 20:37:16.794532000 +0200 +++ /home/buildbot/build/mysql-test/r/processlist.reject 2014-12-22 01:07:55.454312832 +0200 @@ -16,5 +16,5 @@ SET DEBUG_SYNC = 'now WAIT_FOR query_done'; select command, time < 5 from information_schema.processlist where id != connection_id(); command time < 5 -Sleep 1 +Execute 0 set debug_sync='reset'; mysqltest: Result length mismatch

Another variation:
http://buildbot.askmonty.org/buildbot/builders/work-amd64-valgrind/builds/6424

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 main.processlist w1 [ fail ] Test ended at 2014-12-02 05:34:58 CURRENT_TEST: main.processlist --- /var/lib/buildbot/maria-slave/work-opensuse-amd64/build/mysql-test/r/processlist.result 2014-12-01 23:07:01.000000000 +0200 +++ /var/lib/buildbot/maria-slave/work-opensuse-amd64/build/mysql-test/r/processlist.reject 2014-12-02 05:34:58.000000000 +0200 @@ -6,7 +6,6 @@ 1 SET DEBUG_SYNC = 'now SIGNAL fill_schema_proceed'; INFO TIME TIME_MS -NULL 0 0.000 select sleep(5); sleep(5) 0 mysqltest: Result length mismatch

Environment

None

Status

Assignee

Kristian Nielsen

Reporter

Elena Stepanova

Labels

External issue ID

None

External issue ID

None

Components

Fix versions

Affects versions

10.0
10.1
5.5

Priority

Major
Configure