$ lm32-rtems4.11-gdb flickernoise
GNU gdb (GDB) 7.2
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This GDB was configured as "--host=i686-pc-linux-gnu --target=lm32-rtems4.11".
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<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /home/lekernel/Milkymist/flickernoise/src/bin/flickernoise...done.
(gdb)  set remote interrupt-on-connect on
(gdb)  set remote interrupt-sequence BREAK
(gdb)  target remote /dev/ttyUSB0
Remote debugging using /dev/ttyUSB0
Ignoring packet error, continuing...
warning: unrecognized item "Packett" in "qSupported" response
0x400c36c0 in _CPU_Thread_Idle_body (ignored=0)
    at ../../../../../../../../rtems-milkymist/c/src/../../cpukit/score/cpu/lm32/cpu.c:172
172	    asm volatile("and r0, r0, r0");
(gdb)