Dear friends,
I want to record a checkpoint as soon as the operating system is booted
succesfully. My command line is bellow:
nohup /mydata/gem5/build/X86/gem5.opt --outdir=/mydata/fullSystemNPBSplash -r
-e /mydata/gem5/configs/example/fs.py
--disk-image=/mydata/gem5/fs_image_and_kernel/disks/base.img
--kernel=/mydata/gem5/fs_image_and_kernel/binaries/vmlinux-5.4.49 --num-cpus=1
--cpu-type=AtomicSimpleCPU
--checkpoint-dir=/mydata/gem5/checkpoint_fullSystemNPBSplash
--script=/mydata/gem5/configs/boot/hack_back_ckpt.rcS &
But, the process runs ceaselessly, though there is 'root@gem5-host:/#' in
system.pc.com_1.device. And I can type ls, top and so forth with m5term.
Both means that the system is running, but it just does not generate the
checkpoint and exit.
Besides, I can manually write a checkpoint with 'm5 checkpoint' in
m5term.
(I alse try another two command line-
1) /mydata/gem5/build/X86/gem5.opt -d
/mydata/gem5/checkpoint_fullSystemNPBSplash /mydata/gem5/configs/example/fs.py
--disk-image=/mydata/gem5/fs_image_and_kernel/disks/base.img
--kernel=/mydata/gem5/fs_image_and_kernel/binaries/vmlinux-5.4.49 --num-cpus=1
--cpu-type=AtomicSimpleCPU [I type m5 checkpoint in m5term manually]
2)nohup /mydata/gem5/build/X86/gem5.opt -d
/mydata/gem5/checkpoint_fullSystemNPBSplash2
/mydata/gem5/configs/example/fs.py
--disk-image=/mydata/gem5/fs_image_and_kernel/disks/base.img
--kernel=/mydata/gem5/fs_image_and_kernel/binaries/vmlinux-5.4.49 --num-cpus=1
--cpu-type=AtomicSimpleCPU
--script=/mydata/gem5/configs/boot/hack_back_ckpt.rcS &
All of them did not write a checkpoint and exit, instead the gem5 process
run permanently.
)
However, When I restore that checkpoint with command
line- /mydata/gem5/build/X86/gem5.opt --outdir=/mydata/fullSystemNPBSplash
-r 1 /mydata/gem5/configs/example/fs.py
--disk-image=/mydata/gem5/fs_image_and_kernel/disks/base.img
--kernel=/mydata/gem5/fs_image_and_kernel/binaries/vmlinux-5.4.49 --num-cpus=1
--restore-with-cpu=DerivO3CPU --cpu-type=DerivO3CPU --caches --l2cache
--checkpoint-dir=/mydata/gem5/checkpoint_fullSystemNPBSplash
It does nothing but boot the system from scratch as if it is run without
a checkpoint.
What's wrong with these?
Thanks,
Yongjie
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