login: panic: bpf_mcopy
cpuid = 0
Trace beginning at frame 0xfffff8008d1f86b0
bpf_mcopy() at bpf_mcopy+0x6c 0xffffffff80728c1c 
bpf_mcopy() at bpf_mcopy+0x6c 0xffffffff80728c1c 
catchpacket.isra.1() at catchpacket.isra.1+0xff 0xffffffff8072969f 
bpf_mtap() at bpf_mtap+0x71 0xffffffff8072a751 
bpf_ptap() at bpf_ptap+0x39 0xffffffff8072a839 
if_simloop() at if_simloop+0x8f 0xffffffff80742ccf 
Debugger("panic")

CPU0 stopping CPUs: 0x0000003e
 stopped
Stopped at      Debugger+0x7c:  movb    $0,0xbdaf09(%rip)
db>