[yocto] Yocto 1.8.1 - Insert USB VFAT thumb drive results in "Volume was not properly unmounted. Some data may be corrupt. Please run fsck"

[Brian Hutchinson]

If the USB drive is cold plugged (inserted before power on) it mounts
fine, it is only a hotplug that results in the message "Volume was not
properly unmounted. Some data may be corrupt. Please run fsck"

The drive is mounted under /run/media/sdb1 but a listing of the
directory just shows strange characters for the file names.

Installed dosfstools on target and running fsck.vfat doesn't report a
problem.  Inserting the exact same USB drive in a Ubuntu 14.04 box
works fine so it isn't the USB drive.

Found this thread talking about the problem I'm seeing (link below)
and a bug report that sounds similar to what I'm seeing but I never
really saw what the issue is and it says it's been fixed in Yocto
1.8.3 but I don't see a Yocto 1.8.3 release ... only Yocto 1.8.2.

https://lists.yoctoproject.org/pipermail/yocto/2015-September/026563.html

https://bugzilla.yoctoproject.org/show_bug.cgi?id=9652/

When I run the mount command it says the USB drive is mounted as:

type vfat (rw,relatime,gid=6,fmask=0007,dmask=0007,allow_utime=0020,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)

I'm running a 4.4.1 kernel built outside of Yocto on a TI 816x SoC.

Anyone have any information on what the issue may be?  I've played
around with my kernel .config thinking it was something there but that
didn't make any difference.  Kinda stumped at the moment.

Regards,

Brian