panic: trap type 4, code=0, pc=ffffffff82fe586e
Starting stack trace...
panic(ffffffff8330e72a) at panic+0x1d0 sys/kern/subr_prf.c:229
kerntrap(ffff80003c550ee0) at kerntrap+0x29b sys/arch/amd64/amd64/trap.c:327
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
sys_semop(ffff80002f0ac028,ffff80003c551190,ffff80003c5510e0) at sys_semop+0x3ae sys/kern/sysv_sem.c:620
syscall(ffff80003c551190) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c551190) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xd21d82b99f0, count: 251
End of stack trace.