Hi Adam & Markus, I think I may have found a recipe for reproducing the minicom assert with LANG=en_GB.UTF-8. As Markus reported the problem goes away with LANG=posix.
Arrange for Minicom receive the following (invalid UTF-8) byte sequence over the serial port: f8 e2 82 ac c2 a3 0a The error message I see is: minicom: ../iconv/loop.c:425: internal_utf8_loop_single: Assertion `inptr - bytebuf > (state->__count & 7)' failed. I've attached a file containing the bytes too. Mike.
�€£