Hi Sachin. Without looking at the output, this sounds like a null pointer to a structure or object within your workload, where the thing within being accessed is at offset 0x14 from the start of the struct/object. You can use GDB to debug code within gem5 using the remote GDB stub:
https://www.gem5.org/documentation/general_docs/debugging_and_testing/debugging/debugging_simulated_code On Sun, Nov 21, 2021 at 6:43 PM Sachin Vijay Kumar <vijay...@ualberta.ca> wrote: > Hi Gabe, > Thanks for the suggestion, it worked. I used "se.py" file and submitted > workload. It seems that for multithreaded work load, if number of threads > is equal to number of cores, things work. I used --debug flag to verify > whether both cores are running. But unfortunately, I have ran into another > problem. This seem to work for number of cores and threads equal to 2. When > I use more than 2, I get an panic error "panic: panic condition !handled > occurred: Page table fault when accessing virtual address 0x14". > > I have attached the console output for working ( n=2) and non working > (n=3) case, do you have any suggestion on where I should look into in > solving this problem? I spent lot of time on this with out making any > progress. > > Thanks, > Sachin > > > On Mon, Nov 15, 2021 at 5:51 PM Gabe Black via gem5-users < > gem5-users@gem5.org> wrote: > >> I'm not 100% sure this is right, but I think what you do is assign the >> same process object to each core you want a thread to run on. >> >> Gabe >> >> On Mon, Nov 15, 2021 at 10:25 AM Sachin Vijay Kumar via gem5-users < >> gem5-users@gem5.org> wrote: >> >>> Hi all, >>> >>> I have some basic question about assigning a multithreaded program >>> into different cores of ARM in gem5 simulation. >>> Basically, I have hashmark benchmark file which is built for arm core >>> with "m5 threads". >>> The executable takes number of threads to create and a input file as >>> argument. Now when I run simulations, I have to assign each thread of this >>> benchmark program to each core of the processor. How can I do that? >>> I have gone through "se.py" and I understand, how different program >>> could be loaded into different cores. I also understand, how different >>> programs can be loaded into multi-threaded single core (by looking at same >>> script file). >>> But I do not get, How can I assign a thread of a benchmark application >>> to a core of the processor, Can some one please provide some pointers? >>> >>> Thanks, >>> Sachin >>> _______________________________________________ >>> gem5-users mailing list -- gem5-users@gem5.org >>> To unsubscribe send an email to gem5-users-le...@gem5.org >>> %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s >> >> _______________________________________________ >> gem5-users mailing list -- gem5-users@gem5.org >> To unsubscribe send an email to gem5-users-le...@gem5.org >> %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s > >
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