The terminal contents are as follows:

./build/ARM/gem5.opt --debug-flags=All --debug-file=All_Debug 
configs/example/se.py --cpu-type=O3CPU --caches -c 
/home/tom/Documents/gem5/tests/test-progs/hello/bin/arm/linux/hello 
gem5 Simulator System.  http://gem5.org
gem5 is copyrighted software; use the --copyright option for details.

gem5 version 21.2.1.0
gem5 compiled Mar 25 2022 18:35:14
gem5 started Apr 26 2022 01:31:34
gem5 executing on tom-Latitude-E7450, pid 32261
command line: ./build/ARM/gem5.opt --debug-flags=All --debug-file=All_Debug 
configs/example/se.py --cpu-type=O3CPU --caches -c 
/home/tom/Documents/gem5/tests/test-progs/hello/bin/arm/linux/hello

Global frequency set at 1000000000000 ticks per second
warn: No dot file generated. Please install pydot to generate the dot file and 
pdf.
build/ARM/mem/mem_interface.cc:791: warn: DRAM device capacity (8192 Mbytes) 
does not match the address range assigned (512 Mbytes)
0: system.remote_gdb: listening for remote gdb on port 7001
**** REAL SIMULATION ****
build/ARM/sim/simulate.cc:194: info: Entering event queue @ 0.  Starting 
simulation...
gem5 has encountered a segmentation fault!

--- BEGIN LIBC BACKTRACE ---
./build/ARM/gem5.opt(+0xff96f0)[0x55b3191f16f0]
./build/ARM/gem5.opt(+0x1016795)[0x55b31920e795]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x143c0)[0x7fab86bdd3c0]
./build/ARM/gem5.opt(+0xc60ae6)[0x55b318e58ae6]
./build/ARM/gem5.opt(+0xc610df)[0x55b318e590df]
./build/ARM/gem5.opt(+0xc5ad78)[0x55b318e52d78]
./build/ARM/gem5.opt(+0xc5cb26)[0x55b318e54b26]
./build/ARM/gem5.opt(+0xbc6686)[0x55b318dbe686]
./build/ARM/gem5.opt(+0xbcbd85)[0x55b318dc3d85]
./build/ARM/gem5.opt(+0xba20b4)[0x55b318d9a0b4]
./build/ARM/gem5.opt(+0x1005c92)[0x55b3191fdc92]
./build/ARM/gem5.opt(+0x10341b4)[0x55b31922c1b4]
./build/ARM/gem5.opt(+0x1034f0e)[0x55b31922cf0e]
./build/ARM/gem5.opt(+0xcd4d72)[0x55b318eccd72]
./build/ARM/gem5.opt(+0x9262c7)[0x55b318b1e2c7]
/lib/x86_64-linux-gnu/libpython3.8.so.1.0(+0x2a8738)[0x7fab86e94738]
/lib/x86_64-linux-gnu/libpython3.8.so.1.0(_PyEval_EvalFrameDefault+0x8dd8)[0x7fab86c69f48]
/lib/x86_64-linux-gnu/libpython3.8.so.1.0(_PyEval_EvalCodeWithName+0x8fb)[0x7fab86db6e3b]
/lib/x86_64-linux-gnu/libpython3.8.so.1.0(_PyFunction_Vectorcall+0x94)[0x7fab86e94114]
/lib/x86_64-linux-gnu/libpython3.8.so.1.0(+0x74d6d)[0x7fab86c60d6d]
/lib/x86_64-linux-gnu/libpython3.8.so.1.0(_PyEval_EvalFrameDefault+0x7d86)[0x7fab86c68ef6]
/lib/x86_64-linux-gnu/libpython3.8.so.1.0(+0x8006b)[0x7fab86c6c06b]
/lib/x86_64-linux-gnu/libpython3.8.so.1.0(+0x74d6d)[0x7fab86c60d6d]
/lib/x86_64-linux-gnu/libpython3.8.so.1.0(_PyEval_EvalFrameDefault+0x12fd)[0x7fab86c6246d]
/lib/x86_64-linux-gnu/libpython3.8.so.1.0(_PyEval_EvalCodeWithName+0x8fb)[0x7fab86db6e3b]
/lib/x86_64-linux-gnu/libpython3.8.so.1.0(_PyFunction_Vectorcall+0x94)[0x7fab86e94114]
/lib/x86_64-linux-gnu/libpython3.8.so.1.0(+0x74d6d)[0x7fab86c60d6d]
/lib/x86_64-linux-gnu/libpython3.8.so.1.0(_PyEval_EvalFrameDefault+0x7d86)[0x7fab86c68ef6]
/lib/x86_64-linux-gnu/libpython3.8.so.1.0(_PyEval_EvalCodeWithName+0x8fb)[0x7fab86db6e3b]
/lib/x86_64-linux-gnu/libpython3.8.so.1.0(PyEval_EvalCodeEx+0x42)[0x7fab86db71c2]
/lib/x86_64-linux-gnu/libpython3.8.so.1.0(PyEval_EvalCode+0x1f)[0x7fab86db75af]
/lib/x86_64-linux-gnu/libpython3.8.so.1.0(+0x1cfbf1)[0x7fab86dbbbf1]
--- END LIBC BACKTRACE ---
Segmentation fault (core dumped)



When i specified "Exec" as the debug flag, instead of "All". the simulation got 
completed without an error.
Also, when i tried running "Dhrystone" application on the same O3CPU or minor, 
the simulation didnt get completed when using "Exec" flag (loop count for 
dhrystone was only 10). It was as if simulator got stuck.

Please let me know if i need to provide any additional information  
Regards,
Tom
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