Hello,
As the title says, I am trying to run the SPEC benchmarks (v1.1.9) on gem5
v23.0.1.0 on an Ubuntu 20.04 LTS host machine with SE mode of simulation on
DerivO3CPU. Whenever I run the simulation, I keep getting a similar error
for all Intrate benchmarks (base version) saying that unrecognized/invalid
instruction executed. I have compiled gem5 for the X86 ISA.
For SPEC, I have compiled the intrate benchmarks with the default
Example-gcc-linux-x86.cfg file. I also tried adding flags that would
disable BMI2 instructions since I saw in a previous question asked by a
gem5 user that gem5 may not support those instructions.
I am also aware that it is better to run SPEC in FS mode but that would be
in case of encountering unimplemented syscalls. I still want to understand
the reason and find a solution to avoid encountering the unimplemented
instruction error.
I appreciate any help you can provide.
Thank you. Best,
Preet.
TL;DR:
Simulation config:
--cpu-type=DerivO3CPU --cpu-clock=2GHz --caches --l2cache --l1d_size=64kB
--l1d_assoc=8 --l1i_size=32kB --l1i_assoc=8 --l2_size=2MB
--mem-type=DDR4_2400_8x8 --mem-size=8GB
Executable command:
SPEC2017 benchmarks
Simulation config:
deprecated/example/se.py
Host system:
Ubuntu 20.04 LTS, Intel Xeon Gold 5118, x86_64.
SPEC compilation config:
Example-gcc-linux-x86.cfg (also tried -mno-bmi2, -mtune=generic, -static,
but all failed).
Sample errors:
gcc_r_base gem5:
src/arch/x86/faults.cc:131: panic: Unrecognized/invalid instruction
executed:
{
leg = 0,
rex = 0,
vex/xop = 0,
op = {
type = one byte,
op = 0x62,
},
modRM = 0xf2,
sib = 0,
immediate = 0,
displacement = 0
dispSize = 0}
perlbench_r_base gem5:
src/arch/x86/faults.cc:131: panic: Unrecognized/invalid instruction
executed:
{
leg = 0,
rex = 0,
vex/xop = 0,
op = {
type = one byte,
op = 0x62,
},
modRM = 0xf2,
sib = 0,
immediate = 0,
displacement = 0
dispSize = 0}
mcf_r_base gem5:
src/arch/x86/faults.cc:166: panic: Tried to read unmapped address
0x347ffff7a3ca48.
PC: (0x2146=>0x214a).(0=>1), Instr: MOV_R_M : ld rdx, DS:[rax +
0x38]
omnettp_r_base gem5:
src/arch/x86/faults.cc:131: panic: Unrecognized/invalid instruction
executed:
{
leg = 0,
rex = 0,
vex/xop = 0,
op = {
type = one byte,
op = 0x62,
},
modRM = 0xf2,
sib = 0,
immediate = 0,
displacement = 0
dispSize = 0}
xalancbmk_r_base gem5:
src/arch/x86/faults.cc:131: panic: Unrecognized/invalid instruction
executed:
{
leg = 0,
rex = 0,
vex/xop = 0,
op = {
type = one byte,
op = 0x62,
},
modRM = 0xd1,
sib = 0,
immediate = 0,
displacement = 0
dispSize = 0}
x264_r_base gem5:
src/arch/x86/faults.cc:131: panic: Unrecognized/invalid instruction
executed:
{
leg = 0x10,
rex = 0,
vex/xop = 0x1,
op = {
type = three byte 0f38,
op = 0xf7,
},
modRM = 0,
sib = 0,
immediate = 0,
displacement = 0
dispSize = 0}
deepsjeng_r_base gem5:
src/arch/x86/faults.cc:131: panic: Unrecognized/invalid instruction
executed:
{
leg = 0x10,
rex = 0x8,
vex/xop = 0x1,
op = {
type = three byte 0f38,
op = 0xf7,
},
modRM = 0,
sib = 0,
immediate = 0,
displacement = 0
dispSize = 0}
leela_r_base gem5:
src/arch/x86/faults.cc:131: panic: Unrecognized/invalid instruction
executed:
{
leg = 0,
rex = 0,
vex/xop = 0,
op = {
type = one byte,
op = 0x62,
},
modRM = 0xd1,
sib = 0,
immediate = 0,
displacement = 0
dispSize = 0}
exchange2_r_base gem5:
src/arch/x86/faults.cc:131: panic: Unrecognized/invalid instruction
executed:
{
leg = 0x10,
rex = 0,
vex/xop = 0x5,
op = {
type = three byte 0f3a,
op = 0x38,
},
modRM = 0,
sib = 0,
immediate = 0,
displacement = 0
dispSize = 0}
xz_r_base gem5:
src/arch/x86/faults.cc:131: panic: Unrecognized/invalid instruction
executed:
{
leg = 0,
rex = 0,
vex/xop = 0,
op = {
type = one byte,
op = 0x62,
},
modRM = 0xf2,
sib = 0,
immediate = 0,
displacement = 0
dispSize = 0}
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