Hmm... that's strange. I would expect that command line to be completely deterministic.
However, Brandon just submitted a patch that fixes an undefined behavior error for x86. It should be merged soon, but if you'd like to try it now see https://gem5-review.googlesource.com/c/public/gem5/+/19568 Cheers, Jason On Thu, Jul 18, 2019 at 11:55 AM Armel Jeatsa <toulepiar...@gmail.com> wrote: > Hello, > I use the command : *build/X86/gem5.opt configs/example/fs.py > --disk-image=$(pwd)/full-system-images/disks/linux-x86.img > --kernel=$(pwd)/full-system-images/binaries/x86_64-vmlinux-2.6.22.9.smp > --cpu-type=TimingSimpleCPU -n 4 --caches --l1i_size=8kB --l1d_size=8kB > --l2cache --l2_size=256kB* > and it seems to freeze at line : *"Brought up 4 CPUs"* > > kind regards, > Armel > -- > *JEATSA TOULEPI Armel* > Étudiant En Génie Informatique > Tel: +237 650771894 / 655296800 > > > Le lun. 15 juil. 2019 à 17:22, Jason Lowe-Power <ja...@lowepower.com> a > écrit : > >> Hi Armel, >> >> It's unlikely the performance of the host machine. gem5 should be >> deterministic, and the underlying host machine shouldn't make a difference. >> >> Since you're seeing non-deterministic behavior, you should ask "what >> about the simulation is changing?". Is it some configuration options (e.g., >> size of caches)? Is it the CPU pipeline design (e.g., size of ROB)? This >> might give a hint as to the problem. >> >> If you could give us details about your configuration (e.g., Ruby vs >> classic caches, what CPU model, etc.) we may be able to help more. >> >> Cheers, >> Jason >> >> On Mon, Jul 15, 2019 at 1:39 AM Armel Jeatsa <toulepiar...@gmail.com> >> wrote: >> >>> Hello everyone, >>> >>> Sometimes when i launch full system simulation, the process seems to be >>> freezing at line "*Brought up 2 CPUs*" or at line "*Freeing unused >>> kernel memory: 248k freed*", and other times it launches well and show >>> the m5 terminal. What can be the cause of the problem?? could it be >>> related to the performance of my machine? >>> >>> Kind regards, >>> Armel. >>> -- >>> *JEATSA TOULEPI Armel* >>> Étudiant En Génie Informatique >>> Tel: +237 650771894 / 655296800 >>> _______________________________________________ >>> gem5-users mailing list >>> gem5-users@gem5.org >>> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >> >> _______________________________________________ >> gem5-users mailing list >> gem5-users@gem5.org >> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users > > _______________________________________________ > gem5-users mailing list > gem5-users@gem5.org > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
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