Hi,
As a new user, I am running the latest version of gem5 on CentOS 6. I want
to simulate the SPEC2k6 benchmarks with a X86 architecture. I compiled
./build/X86/gem5.opt without any issue. The SPEC2k6 benchmarks are all
compiled with -static flags, which can run in SE mode successfully with my
scripts modified from this page:
http://www.m5sim.org/SPEC_CPU2006_benchmarks
I generate the checkpoint with:
./build/X86/gem5.opt configs/cmp.py -b perlbench
--take-checkpoint=500000000,100000000 --max-checkpoint=1
--checkpoint-dir=./m5out/checkpoint/400.perlbench/
It seems to work since a checkpoint is written. Although gem5 seems to have
issues exiting the simulation:
Global frequency set at 1000000000000 ticks per second
0: system.remote_gdb.listener: listening for remote gdb #0 on port 7000
info: Entering event queue @ 0. Starting simulation...
warn: instruction 'fldcw_Mw' unimplemented
Writing checkpoint
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/users/home/yiding/gem5/gem5/src/python/m5/main.py", line 359, in
main
exec filecode in scope
File "configs/cmp.py", line 147, in <module>
Simulation.run(options, root, system, FutureClass)
File "/users/home/yiding/gem5/gem5/configs/common/Simulation.py", line
506, in run
print 'Exiting @ tick %i because %s' % (m5.curTick(),
exit_event.getCause())
UnboundLocalError: local variable 'exit_event' referenced before assignment
But the *real* issue is when I try to restore the checkpoint, gem5 has a
segfault:
./build/X86/gem5.opt configs/cmp.py -b perlbench --checkpoint-restore=1
--checkpoint-dir=./m5out/checkpoint/400.perlbench/
Global frequency set at 1000000000000 ticks per second
0: system.remote_gdb.listener: listening for remote gdb #0 on port 7000
warn: optional parameter system.cpu.workload:M5_pid not present
**** REAL SIMULATION ****
info: Entering event queue @ 500000000. Starting simulation...
Segmentation fault
I don't know what is causing the segfault. Any help is welcome.
Thanks!
--
Ph.D. Candidate, Yiding Han
BRIDGE Lab <http://www.engr.usu.edu/bridge/index.html>, ECE Dept.,
Utah State University, Logan, UT 84322, USA
E-mail: [email protected], [email protected]
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