While building and testing on Launchpad, MariaDB crashes with SIGBUS in the connect storage engine when working with doubles as data, in a TABLE_FORMAT=BIN table.
The test that fails is connect.upd.
Sadly, no stack trace is available, however the common error message is:
NOTE: ArmHF requires memory alignment of 8 for 64 bit double values.
The problem is fixed on Launchpad via this patch: