erp5: enable mariadb core dump

https://mariadb.com/kb/en/enabling-core-dumps/

software/erp5/crash_test/test.py

@@ -42,6 +42,10 @@ setUpModule, SlapOSInstanceTestCase = makeModuleSetUpAndTestCaseClass(
 class ERP5MariadbCrashTestCase(SlapOSInstanceTestCase):
   __partition_reference__ = 'crash'
 
+  _save_instance_file_pattern_list = SlapOSInstanceTestCase._save_instance_file_pattern_list + (
+      '*/srv/mariadb/core',
+  )
+
   @classmethod
   def getInstanceParameterDict(cls):
     return {

software/neoppod/software-common.cfg

@@ -132,6 +132,7 @@ template =
   {{ variable }} \
   {%-   endfor %}
   {%- endif %}
+  ulimit -c unlimited
   exec "$basedir/bin/mysqld" --defaults-file='{{defaults_file}}' "$@"
   {% endraw %}
 

stack/erp5/buildout.hash.cfg

@@ -42,7 +42,7 @@ md5sum = d32417746fcf671d4e86a70379815039
 
 [template-my-cnf]
 filename = my.cnf.in
-md5sum = 7944ec58a2c6ee74a56219bacebfd145
+md5sum = 24fc9b93d4108d29a1ee3aa46583366c
 
 [template-mariadb-initial-setup]
 filename = mariadb_initial_setup.sql.in

stack/erp5/my.cnf.in

@@ -71,6 +71,9 @@ character_set_server = utf8mb4
 collation_server = utf8mb4_general_ci
 skip_character_set_client_handshake
 
+# debugging
+core_file
+
 {% if 'ssl-key' in parameter_dict -%}
 ssl_cert = {{ parameter_dict['ssl-crt'] }}
 ssl_key = {{ parameter_dict['ssl-key'] }}