Hi All,

I'm emulating an Android full system using gem5 v20.0.0.0 version, taking 
SPEC2017 checkpoints from a single-core cpu system.
The checkpoint can successfully restore from my single-core model and run to 
completion.
When I restore from the multi-core model, I encountered the following problems
cores
Run command
Status
single-core model
build/ARM/gem5.opt configs/example/fs.py \
--caches --l2cache --l1i_size=32kB \
--l1d_size=32kB --l2_size=1MB --l2_assoc=2 \
--sys-clock=1600MHz \
--cpu-type=DerivO3CPU\
--mem-type=SimpleMemory \
--os-type=android-kitkat --disk-image=myimage.img --machine-type=VExpress_EMM 
--dtb-filename=vexpress-v2p-ca15-tc1-gem5.dtb --kernel=vmlinux \
-n 1 --mem-size=1800MB --frame-capture \
--restore-simpoint-checkpoint -r 1 --checkpoint-dir 
/data01/linansong/my_tools/gem5/gem5/m5out/testO3CPU.h264.CPT/
Done running SimPoint!
multi-core
model
build/ARM/gem5.opt configs/example/fs.py \
--caches --l2cache --l1i_size=32kB \
--l1d_size=32kB --l2_size=1MB --l2_assoc=2 \
--sys-clock=1600MHz \
--cpu-type=DerivO3CPU\
--mem-type=SimpleMemory \
--os-type=android-kitkat --disk-image=myimage.img --machine-type=VExpress_EMM 
--dtb-filename=vexpress-v2p-ca15-tc1-gem5.dtb --kernel=vmlinux \
-n 4 --mem-size=1800MB --frame-capture \
--restore-simpoint-checkpoint -r 1 --checkpoint-dir 
/data01/linansong/my_tools/gem5/gem5/m5out/testO3CPU.h264.CPT/
fatal: Can't unserialize 
'system.realview.local_cpu_timer.timer1:timer_control_serial'

How should I correctly restore my checkpoint from the multi-core model?

Thanks

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