mysql crashes on test main.xml on arch armhf

main.xml                                 w2 [ fail ]

        Test ended at 2020-03-17 23:00:40

CURRENT_TEST: main.xml

mysqltest: At line 46: query 'SELECT extractValue(@xml,'/a/b[1]')' failed: 2013: Lost connection to MySQL server during query

The result from queries just before the failure was:

< snip >

extractValue(@xml,'/a/b/c/ancestor-or-self::*')

a11 b21 c1 b22 a12

SELECT extractValue(@xml,'//@ba');

extractValue(@xml,'//@ba')

ba11 ba12 ba21 ba22

SET @xml='<a><b>b</b><c>c</c></a>';

SELECT extractValue(@xml,'/a/b');

extractValue(@xml,'/a/b')

b

SELECT extractValue(@xml,'/a/c');

extractValue(@xml,'/a/c')

c

SELECT extractValue(@xml,'/a/child::b');

extractValue(@xml,'/a/child::b')

b

SELECT extractValue(@xml,'/a/child::c');

extractValue(@xml,'/a/child::c')

c

SET @xml='<a><b>b1</b><c>c1</c><b>b2</b><c>c2</c></a>';

SELECT extractValue(@xml,'/a/b[1]');

More results from queries before failure can be found in /<<BUILDDIR>>/mariadb-10.5-10.5.2+maria~sid~ubuntu20.04.1~1584481678.d9afbffc006/builddir/mysql-test/var/2/log/xml.log

Server [mysqld.1 - pid: 6860, winpid: 6860, exit: 256] failed during test run

Server log from this test:

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

200317 23:00:39 [ERROR] mysqld got signal 7 ;

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 https://mariadb.com/kb/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: 10.5.2-MariaDB-1:10.5.2+maria~sid~ubuntu20.04.1~1584481678.

key_buffer_size=1048576

read_buffer_size=131072

max_used_connections=1

max_threads=153

thread_count=3

It is possible that mysqld could use up to 

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 62255 K  bytes of memory

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

Thread pointer: 0xf10006b8

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 = 0xf13b3d3c thread_stack 0x49000

Trying to get some variables.

Some pointers may be invalid and cause the dump to abort.

Query (0xf100fe48): SELECT extractValue(@xml,'/a/b[1]')

Connection ID (thread ID): 95

Status: NOT_KILLED

Optimizer switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on,split_materialized=on,condition_pushdown_for_subquery=on,rowid_filter=on,condition_pushdown_from_having=on,not_null_range_scan=off

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...

Working directory at /dev/shm/var_auto_a5jR/2/mysqld.1/data

Resource Limits:

Limit                     Soft Limit           Hard Limit           Units     

Max cpu time              unlimited            unlimited            seconds   

Max file size             unlimited            unlimited            bytes     

Max data size             unlimited            unlimited            bytes     

Max stack size            8388608              unlimited            bytes     

Max core file size        unlimited            unlimited            bytes     

Max resident set          unlimited            unlimited            bytes     

Max processes             31776                31776                processes 

Max open files            1024                 1024                 files     

Max locked memory         65536                65536                bytes     

Max address space         unlimited            unlimited            bytes     

Max file locks            unlimited            unlimited            locks     

Max pending signals       31776                31776                signals   

Max msgqueue size         819200               819200               bytes     

Max nice priority         0                    0                    

Max realtime priority     0                    0                    

Max realtime timeout      unlimited            unlimited            us        

Core pattern: |/usr/share/apport/apport %p %s %c %d %P

----------SERVER LOG END-------------

 - saving '/<<BUILDDIR>>/mariadb-10.5-10.5.2+maria~sid~ubuntu20.04.1~1584481678.d9afbffc006/builddir/mysql-test/var/2/log/main.xml/' to '/<<BUILDDIR>>/mariadb-10.5-10.5.2+maria~sid~ubuntu20.04.1~1584481678.d9afbffc006/builddir/mysql-test/var/log/main.xml/'

***Warnings generated in error logs during shutdown after running tests: main.view_alias main.win_std main.xml main.udf_notembedded main.userstat-badlogin-4824 main.udf_query_cache main.win_sum main.variables_community main.win_percent_cume main.win_lead_lag main.win_first_last_value main.win_percentile main.win_insert_select main.win_min_max main.win_i_s main.varbinary main.win_orderby main.win_rank main.update_ignore_216 main.xa_sync main.win_ntile main.win_empty_over main.windows main.win_nth_value

200317 23:00:39 [ERROR] mysqld got signal 7 ;

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

main.delete                              w2 [ pass ]    220

main.delete_returning                    w2 [ pass ]     40

main.delete_returning_grant              w2 [ pass ]     21

main.win_big-mdev-11697                  w3 [ pass ]   5644

main.delimiter_command_case_sensitivity  w2 [ pass ]     22

main.win_bit                             w3 [ pass ]     10

main.deprecated_features                 w2 [ pass ]      3

main.derived_view                        w3 [ pass ]    950

main.drop-no_root                        w3 [ pass ]      5

main.empty_server_name-8224              w3 [ pass ]   1424

main.subselect_sj                        w4 [ pass ]   6488

main.derived                             w2 [ pass ]   2874

main.empty_string_literal                w3 [ pass ]     18

main.empty_table                         w4 [ pass ]      6

main.enforce_storage_engine              w3 [ pass ]     37

main.events_embedded                     w3 [ skipped ]  Test requires: embedded server

main.drop                                w2 [ pass ]    278

main.empty_user_table                    w2 [ pass ]     25

main.events_1                            w4 [ pass ]    397

main.events_grant                        w3 [ pass ]    154

main.events_microsec                     w2 [ pass ]      3

main.events_scheduling                   w2 [ pass ]   5984

main.default_storage_engine              w1 [ pass ]  31055

--------------------------------------------------------------------------

The servers were restarted 131 times

Spent 804.036 of 288 seconds executing testcases

Completed: Failed 1/805 tests, 99.88% were successful.

Failing test(s): main.xml