encryption.innodb_encryption_discard_import fails sporadically in buildbot

CURRENT_TEST: encryption.innodb_encryption_discard_import

mysqltest: At line 133: query 'ALTER TABLE t1 IMPORT TABLESPACE' failed: 2013: Lost connection to MySQL server during query

The result from queries just before the failure was:

< snip >

ALTER TABLE t3 DISCARD TABLESPACE;

# Discarded tablespaces should be encrypted

# t1 yes on expecting NOT FOUND

NOT FOUND /foobar/ in t1.ibd

# t2 ... on expecting NOT FOUND

NOT FOUND /temp/ in t2.ibd

# t3 ... on expecting NOT FOUND

NOT FOUND /barfoo/ in t3.ibd

# List after t1 DISCARD

t1.frm

t2.frm

t3.frm

# Tablespaces should be still encrypted

# t1 yes on expecting NOT FOUND

NOT FOUND /foobar/ in t1.ibd

# t2 ... on expecting NOT FOUND

NOT FOUND /temp/ in t2.ibd

# t3 ... on expecting NOT FOUND

NOT FOUND /barfoo/ in t3.ibd

ALTER TABLE t1 IMPORT TABLESPACE;

More results from queries before failure can be found in /dev/shm/var/3/log/innodb_encryption_discard_import.log

Server [mysqld.1 - pid: 24957, winpid: 24957, exit: 256] failed during test run

Server log from this test:

----------SERVER LOG START-----------

2015-10-15  9:05:19 3068185408 [Note] InnoDB: Sync to disk of '"test"."t1"' started.

2015-10-15  9:05:19 3068185408 [Note] InnoDB: Stopping purge

2015-10-15  9:05:19 3068185408 [Note] InnoDB: Writing table metadata to './test/t1.cfg'

2015-10-15  9:05:19 3068185408 [Note] InnoDB: Table '"test"."t1"' flushed to disk

2015-10-15  9:05:19 3068185408 [Note] InnoDB: Sync to disk of '"test"."t2"' started.

2015-10-15  9:05:19 3068185408 [Note] InnoDB: Writing table metadata to './test/t2.cfg'

2015-10-15  9:05:19 3068185408 [Note] InnoDB: Table '"test"."t2"' flushed to disk

2015-10-15  9:05:19 3068185408 [Note] InnoDB: Sync to disk of '"test"."t3"' started.

2015-10-15  9:05:19 3068185408 [Note] InnoDB: Writing table metadata to './test/t3.cfg'

2015-10-15  9:05:19 3068185408 [Note] InnoDB: Table '"test"."t3"' flushed to disk

2015-10-15  9:05:19 3068185408 [Note] InnoDB: Deleting the meta-data file './test/t1.cfg'

2015-10-15  9:05:19 3068185408 [Note] InnoDB: Deleting the meta-data file './test/t2.cfg'

2015-10-15  9:05:19 3068185408 [Note] InnoDB: Deleting the meta-data file './test/t3.cfg'

2015-10-15  9:05:19 3068185408 [Note] InnoDB: Resuming purge

2015-10-15  9:05:19 3068185408 [Note] /usr/sbin/mysqld: Normal shutdown

2015-10-15  9:05:19 3068185408 [Note] Event Scheduler: Purging the queue. 0 events

2015-10-15  9:05:19 2764045120 [Note] InnoDB: FTS optimize thread exiting.

2015-10-15  9:05:19 3068185408 [Note] InnoDB: Starting shutdown...

2015-10-15  9:05:20 3068185408 [Note] InnoDB: Shutdown completed; log sequence number 10268187

2015-10-15  9:05:20 3068185408 [Note] /usr/sbin/mysqld: Shutdown complete

2015-10-15  9:05:21 3068377088 [Note] /usr/sbin/mysqld (mysqld 10.1.8-MariaDB-1~sid-log) starting as process 24958 ...

2015-10-15  9:05:21 3068377088 [Warning] Could not increase number of max_open_files to more than 1024 (request: 4162)

2015-10-15  9:05:21 3068377088 [Note] Plugin 'partition' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'SEQUENCE' is disabled.

2015-10-15  9:05:21 3068377088 [Note] InnoDB: Using mutexes to ref count buffer pool pages

2015-10-15  9:05:21 3068377088 [Note] InnoDB: The InnoDB memory heap is disabled

2015-10-15  9:05:21 3068377088 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins

2015-10-15  9:05:21 3068377088 [Note] InnoDB: Memory barrier is not used

2015-10-15  9:05:21 3068377088 [Note] InnoDB: Compressed tables use zlib 1.2.8

2015-10-15  9:05:21 3068377088 [Note] InnoDB: Using Linux native AIO

2015-10-15  9:05:21 3068377088 [Note] InnoDB: Not using CPU crc32 instructions

2015-10-15  9:05:21 3068377088 [Note] InnoDB: Initializing buffer pool, size = 8.0M

2015-10-15  9:05:21 3068377088 [Note] InnoDB: Completed initialization of buffer pool

2015-10-15  9:05:21 3068377088 [Note] InnoDB: Highest supported file format is Barracuda.

2015-10-15  9:05:21 3068377088 [Note] InnoDB: 128 rollback segment(s) are active.

2015-10-15  9:05:21 3068377088 [Note] InnoDB: Waiting for purge to start

2015-10-15  9:05:21 3068377088 [Note] InnoDB:  Percona XtraDB (http://www.percona.com) 5.6.26-74.0 started; log sequence number 10268187

2015-10-15  9:05:21 3068377088 [Note] InnoDB: Creating #1 thread id 2755656512 total threads 4.

2015-10-15  9:05:21 2789206848 [Note] InnoDB: Dumping buffer pool(s) not yet started

2015-10-15  9:05:21 3068377088 [Note] InnoDB: Creating #2 thread id 2747263808 total threads 4.

2015-10-15  9:05:21 3068377088 [Note] InnoDB: Creating #3 thread id 2730490688 total threads 4.

2015-10-15  9:05:21 3068377088 [Note] InnoDB: Creating #4 thread id 2722097984 total threads 4.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'INNODB_SYS_DATAFILES' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'INNODB_SYS_TABLESTATS' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'INNODB_SYS_INDEXES' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'XTRADB_RSEG' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'CHANGED_PAGE_BITMAPS' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'INNODB_FT_BEING_DELETED' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'INNODB_LOCK_WAITS' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'XTRADB_INTERNAL_HASH_TABLES' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'INNODB_SYS_FIELDS' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'INNODB_CMPMEM_RESET' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'FEEDBACK' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'INNODB_CMP' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'INNODB_FT_INDEX_TABLE' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'INNODB_SYS_TABLESPACES' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'INNODB_MUTEXES' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'INNODB_CMP_RESET' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'INNODB_FT_INDEX_CACHE' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'INNODB_FT_DEFAULT_STOPWORD' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'INNODB_SYS_COLUMNS' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'INNODB_FT_CONFIG' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'INNODB_CMP_PER_INDEX_RESET' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'XTRADB_READ_VIEW' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'INNODB_SYS_SEMAPHORE_WAITS' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'INNODB_CHANGED_PAGES' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'INNODB_FT_DELETED' is disabled.

2015-10-15  9:05:21 3068377088 [Note] Plugin 'INNODB_TABLESPACES_SCRUBBING' is disabled.

2015-10-15  9:05:21 3068377088 [Warning] /usr/sbin/mysqld: unknown variable 'loose-debug-sync-timeout=300'

2015-10-15  9:05:21 3068377088 [Note] Server socket created on IP: '127.0.0.1'.

2015-10-15  9:05:21 3068377088 [Note] Event Scheduler: Loaded 0 events

2015-10-15  9:05:21 3068377088 [Note] /usr/sbin/mysqld: ready for connections.

Version: '10.1.8-MariaDB-1~sid-log'  socket: '/dev/shm/var/tmp/3/mysqld.1.sock'  port: 16060  mariadb.org binary distribution

2015-10-15  9:05:32 3067906880 [Note] InnoDB: Importing tablespace for table 'test/t1' that was exported from host 'debian-sid-i386'

2015-10-15  9:05:32 3067906880 [Note] InnoDB: Phase I - Update all pages

2015-10-15  9:05:32 3067906880 [Note] InnoDB: Sync to disk

2015-10-15  9:05:32 3067906880 [Note] InnoDB: Sync to disk - done!

InnoDB: Error: trying to access page number 0 in space 7,

InnoDB: space name test/t1,

InnoDB: which is outside the tablespace bounds.

InnoDB: Byte offset 0, len 16384, i/o type 10.

InnoDB: If you get this error at mysqld startup, please check that

InnoDB: your my.cnf matches the ibdata files that you have in the

InnoDB: MySQL server.

2015-10-15 09:05:32 a3bfeb40  InnoDB: Assertion failure in thread 2747263808 in file fil0fil.cc line 5820

InnoDB: We intentionally generate a memory trap.

InnoDB: Submit a detailed bug report to http://bugs.mysql.com.

InnoDB: If you get repeated assertion failures or crashes, even

InnoDB: immediately after the mysqld startup, there may be

InnoDB: corruption in the InnoDB tablespace. Please refer to

InnoDB: http://dev.mysql.com/doc/refman/5.6/en/forcing-innodb-recovery.html

InnoDB: about forcing recovery.

151015  9:05:32 [ERROR] mysqld got signal 6 ;

This could be because you hit a bug. It is also possible that this binary

or one of the libraries it was linked against is corrupt, improperly built,

or misconfigured. This error can also be caused by malfunctioning hardware.

To report this bug, see http://kb.askmonty.org/en/reporting-bugs

We will try our best to scrape up some info that will hopefully help

diagnose the problem, but since we have already crashed, 

something is definitely wrong and this may fail.

Server version: 10.1.8-MariaDB-1~sid-log

key_buffer_size=1048576

read_buffer_size=131072

max_used_connections=1

max_threads=153

thread_count=1

It is possible that mysqld could use up to 

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 61759 K  bytes of memory

Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x0x0

Attempting backtrace. You can use the following information to find out

where mysqld died. If you see no messages after this, something went

terribly wrong...

stack_bottom = 0x0 thread_stack 0x48000

/usr/sbin/mysqld(my_print_stacktrace+0x28)[0x8090ac18]

/usr/sbin/mysqld(handle_fatal_signal+0x334)[0x80446114]

linux-gate.so.1(__kernel_sigreturn+0x0)[0xb7701bbc]

linux-gate.so.1(__kernel_vsyscall+0x10)[0xb7701be0]

/lib/i386-linux-gnu/i686/cmov/libc.so.6(gsignal+0x47)[0xb7041307]

/lib/i386-linux-gnu/i686/cmov/libc.so.6(abort+0x143)[0xb70429c3]

/usr/sbin/mysqld(+0x70b82b)[0x8074782b]

/usr/sbin/mysqld(+0x6ceb8f)[0x8070ab8f]

/usr/sbin/mysqld(+0x6cfba1)[0x8070bba1]

/usr/sbin/mysqld(+0x6b14db)[0x806ed4db]

/usr/sbin/mysqld(+0x716004)[0x80752004]

/lib/i386-linux-gnu/i686/cmov/libpthread.so.0(+0x6efb)[0xb76e0efb]

/lib/i386-linux-gnu/i686/cmov/libc.so.6(clone+0x5e)[0xb70fc66e]

The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains

information that should help you find out what is causing the crash.

Writing a core file