panic: trap type 4, code=0, pc=ffffffff823051fe Starting stack trace... panic(ffffffff83315bb0) at panic+0x1d0 sys/kern/subr_prf.c:229 kerntrap(ffff80002a3f8400) at kerntrap+0x29b sys/arch/amd64/amd64/trap.c:327 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b sys_semop(ffff80003c4fc300,ffff80002a3f86b0,ffff80002a3f8600) at sys_semop+0x3ae sys/kern/sysv_sem.c:620 syscall(ffff80002a3f86b0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3f86b0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xea0b6e49a10, count: 251 End of stack trace.