Hi! All of the recent 5.3 builds in buildbot have two failures: innodb_plugin.innodb_bug54044 'innodb_plugin' innodb_plugin.innodb_information_schema 'innodb_plugin' The failure happens only with innodb_plugin. XtraDB is fine. I've investigated the first problem. Its cause is in storage/xtradb/handler/ha_innodb.cc:get_innobase_type_from_mysql_type(): - On 2010-08-04, Kristian did a merge from XtraDB in Percona-Server-5.1.47-11 and among everything else pulled in the code that will produce error when the function's argument is Field_null. This seems to be the bugfix for BUG#54044 - On 2011-03-29, Sergei was making fix for lp:743017 in 5.1-micro, switched the function from analyzing field->type() to analyzing field->key_type() and in the process removed the part of code that Kristian has added. For some reason, he did that storage/innodb_plugin and storage/innobase but not to storage/xtradb. - On May, 28th Monty has merged in Sergei's change into 5.3-main and we started to get the failure. I see two problems here: P1: (the apparent one) Sergei's new code doesn't produce error when passed a Field_null object. P2: (less apparent one) Why do we have Microsecond changes in innodb_plugin but not in xtradb? Could there be more fixes missing in a similar way? Sergei, could you please take a look? BR Sergey -- Sergey Petrunia, Software Developer Monty Program AB, http://askmonty.org Blog: http://s.petrunia.net/blog