panic: trap type 4, code=0, pc=ffffffff8327fd15
Starting stack trace...
panic(ffffffff833a81c5) at panic+0x1d0 sys/kern/subr_prf.c:229
kerntrap(ffff80002a3918b0) at kerntrap+0x30b
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b

sys_semop(ffff800034809248,ffff80002a391b30,ffff80002a391a80) at sys_semop+0x3d5 sys/kern/sysv_sem.c:617
syscall(ffff80002a391b30) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a391b30) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xaaf3d5bdad0, count: 251
End of stack trace.