interrupt flagged: intr# 19

I'm getting the following error after starting my sys/bios application on a TMS320F28335:

gged interrupt flagged: intr# 19
xdc.runtime.Error.raise: terminating execution

Any idea what may be causing it? I saw one other post that talks about this problem, but the suggested solution (moving .stack to a different memory section) did not work for me.

I'm using SYS/BIOS 6_34_02_18, xdctools_3_24_05_48.

Thanks for any help.

Kens