Did you do what the error suggests? This error may be caused by a too restrictive setting in the file '/proc/sys/kernel/perf_event_paranoid' The default value was changed to 2 in kernel 4.6 A value greater than 1 prevents gem5 from making the syscall to perf_event_open.
You need to run something like the following (as root). # echo -1 > /proc/sys/kernel/perf_event_paranoid Cheers. Jason On Mon, Feb 10, 2020 at 7:42 AM Muhammet Abdullah Soytürk < muhammetabdullahsoyt...@gmail.com> wrote: > Hi all, > > I am trying to run PageRank application in GAP Benchmark with full system > simulation. I followed the following npb tutorial: > https://gem5art.readthedocs.io/en/latest/tutorials/npb-tutorial.html. and > changed the necessary files to make my application work but I am getting a > KVM error that I have not seen before. Does anyone have any idea about > solving it? I could not find anything online. > > Here is the simerr file content: > > warn: DRAM device capacity (32768 Mbytes) does not match the address range > assigned (128 Mbytes) > info: kernel located at: linux-stable/vmlinux-4.19.83 > warn: Sockets disabled, not accepting terminal connections > warn: Sockets disabled, not accepting gdb connections > warn: CoherentXBar system.cpu.mmucache.mmubus has no snooping ports > attached! > warn: Reading current count from inactive timer. > info: KVM: Coalesced MMIO disabled by config. > warn: x86 cpuid family 0x0000: unimplemented function 2 > warn: x86 cpuid family 0x0000: unimplemented function 3 > warn: x86 cpuid family 0x0000: unimplemented function 4 > warn: x86 cpuid family 0x0000: unimplemented function 5 > warn: x86 cpuid family 0x0000: unimplemented function 6 > info: Entering event queue @ 0. Starting simulation... > > > > > > *panic: PerfKvmCounter::attach recieved error EACCESS This error may be > caused by a too restrictive setting in the file > '/proc/sys/kernel/perf_event_paranoid' The default value was changed to 2 > in kernel 4.6 A value greater than 1 prevents gem5 from making the > syscall to perf_event_open* > Memory Usage: 4532020 KBytes > Program aborted at tick 0 > --- BEGIN LIBC BACKTRACE --- > gem5/build/X86/gem5.opt(_Z15print_backtracev+0x2c)[0x559fcda3ae0c] > gem5/build/X86/gem5.opt(_Z12abortHandleri+0x4a)[0x559fcda4d07a] > /lib/x86_64-linux-gnu/libpthread.so.0(+0x12890)[0x7fa31b84b890] > /lib/x86_64-linux-gnu/libc.so.6(gsignal+0xc7)[0x7fa31a059e97] > /lib/x86_64-linux-gnu/libc.so.6(abort+0x141)[0x7fa31a05b801] > gem5/build/X86/gem5.opt(+0x51e42f)[0x559fcca7f42f] > > gem5/build/X86/gem5.opt(_ZN14PerfKvmCounter6attachER20PerfKvmCounterConfigii+0x127)[0x559fcd981a47] > > gem5/build/X86/gem5.opt(_ZN10BaseKvmCPU13setupCountersEv+0xcc)[0x559fcd9753ac] > > gem5/build/X86/gem5.opt(_ZN10BaseKvmCPU13startupThreadEv+0x57)[0x559fcd9767c7] > gem5/build/X86/gem5.opt(_ZN10EventQueue10serviceOneEv+0xd9)[0x559fcda43019] > gem5/build/X86/gem5.opt(_Z9doSimLoopP10EventQueue+0x87)[0x559fcda63917] > gem5/build/X86/gem5.opt(+0x1502c4f)[0x559fcda63c4f] > /usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0xbd66f)[0x7fa31aa7f66f] > /lib/x86_64-linux-gnu/libpthread.so.0(+0x76db)[0x7fa31b8406db] > /lib/x86_64-linux-gnu/libc.so.6(clone+0x3f)[0x7fa31a13c88f] > --- END LIBC BACKTRACE --- > _______________________________________________ > gem5-users mailing list > gem5-users@gem5.org > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
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