Intemittent hangs on shutdown, ASan build

[Laurynas Biveinis]

On 5.5 trunk, ASan debug build:

sys_vars.innodb_adaptive_flushing_method_startup w5 [ fail ]
        Test ended at 2016-09-21 12:48:46

CURRENT_TEST: sys_vars.innodb_adaptive_flushing_method_startup
--- /mnt/workspace/percona-server-5.5-asan-param/BUILD_TYPE/release-asan/Host/ubuntu-xenial-64bit/mysql-test/suite/sys_vars/r/innodb_adaptive_flushing_method_startup.result 2016-09-21 19:23:15.213382837 +0300
+++ /mnt/workspace/percona-server-5.5-asan-param/BUILD_TYPE/release-asan/Host/ubuntu-xenial-64bit/mysql-test/suite/sys_vars/r/innodb_adaptive_flushing_method_startup.reject 2016-09-21 19:48:45.998447629 +0300
@@ -1,3 +1,4 @@
+shutdown_server timeout 90 exceeded, SIGKILL sent to the server
 SELECT @@GLOBAL.innodb_adaptive_flushing_method;
 @@GLOBAL.innodb_adaptive_flushing_method
 native

mysqltest: Result content mismatch

The error log suggests that the hang is at the very end of shutdown, after the last diagnostics have been printed.

[Laurynas Biveinis (laurynas-biveinis)]

http://jenkins.percona.com/job/percona-server-5.5-asan-param/83/BUILD_TYPE=release-asan,Host=ubuntu-xenial-64bit/consoleText

[Laurynas Biveinis (laurynas-biveinis)]

http://jenkins.percona.com/view/PS%205.5/job/percona-server-5.5-asan-param/110/BUILD_TYPE=debug-asan,Host=ubuntu-xenial-64bit/consoleText

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PS-1751