Illegal instruction (core dumped)

[Jatin]

Illegal instruction (core dumped)

[hajhouj]

Hi,
I got the same issue, I have CPU Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz
This cpu info :
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Address sizes: 46 bits physical, 48 bits virtual
Byte Order: Little Endian
CPU(s): 32
On-line CPU(s) list: 0-31
Vendor ID: GenuineIntel
Model name: Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz
CPU family: 6
Model: 45
Thread(s) per core: 2
Core(s) per socket: 8
Socket(s): 2
Stepping: 7
CPU max MHz: 3300.0000
CPU min MHz: 1200.0000
BogoMIPS: 5187.20
Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mc
a cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss
ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arc
h_perfmon pebs bts rep_good nopl xtopology nonstop_tsc
cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vm
x smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4
2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf
lm epb pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpri
ority ept vpid xsaveopt dtherm ida arat pln pts md_clea
r flush_l1d
Virtualization features:
Virtualization: VT-x
Caches (sum of all):
L1d: 512 KiB (16 instances)
L1i: 512 KiB (16 instances)
L2: 4 MiB (16 instances)
L3: 40 MiB (2 instances)
NUMA:
NUMA node(s): 2
NUMA node0 CPU(s): 0-7,16-23
NUMA node1 CPU(s): 8-15,24-31
Vulnerabilities:
Itlb multihit: KVM: Mitigation: VMX disabled
L1tf: Mitigation; PTE Inversion; VMX conditional cache flushe
s, SMT vulnerable
Mds: Mitigation; Clear CPU buffers; SMT vulnerable
Meltdown: Mitigation; PTI
Mmio stale data: Unknown: No mitigations
Retbleed: Not affected
Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl
and seccomp
Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer
sanitization
Spectre v2: Mitigation; Retpolines, IBPB conditional, IBRS_FW, STIB
P conditional, RSB filling, PBRSB-eIBRS Not affected
Srbds: Not affected
Tsx async abort: Not affected

Is there some thing should I add to code to support my cpu architecture?

[Jatin]

model : 45
model name : Intel(R) Xeon(R) CPU E5-2690 0 @ 2.90GHz
stepping : 7
microcode : 0x71a
cpu MHz : 1200.000
cache size : 20480 KB
physical id : 0
siblings : 16
core id : 0
cpu cores : 8
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm epb pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid xsaveopt dtherm ida arat pln pts md_clear flush_l1d
vmx flags : vnmi preemption_timer invvpid ept_x_only ept_1gb flexpriority tsc_offset vtpr mtf vapic ept vpid unrestricted_guest ple
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs itlb_multihit mmio_unknown
bogomips : 5786.16
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual