Starting with gdb 8.0, this test fails: $ make check RUNTESTFLAGS="--target_board=native-extended-gdbserver" TESTS="gdb.multi/multi-arch-exec.exp" ... # of unexpected failures 1 In gdb.log, when trying to "continue" across the exec: (gdb) continue Continuing. Truncated register 50 in remote 'g' packet Truncated register 50 in remote 'g' packet More details in this thread: https://sourceware.org/ml/gdb-patches/2017-08/threads.html#00488
Fixed by this series: https://sourceware.org/ml/gdb-patches/2017-08/msg00503.html