the mxml library was updated to make it thread-safe.
https://bitbucket.org/tmidas/mxml/src/master/

I also take an opportunity to remind all to update your copy to the latest version
as I just stumbled on old bug that I fixed 1 year ago (crash of mlogger)
but forgot to update all and every of my copies of mxml.

I also looked at the xml encoder and I see that it has several places where it may
truncate the data, but none of these places can cause truncation of ODB data
because the fixed-size internal buffers are big enough to hold the longest
values sent by the odb xml encoder.

K.O.