login: panic: softclock: invalid to_clock: -151396928 Starting stack trace... panic(ffffffff833bb5ca) at panic+0x1d0 sys/kern/subr_prf.c:229 softclock(0) at softclock+0x2a6 softintr_dispatch(0) at softintr_dispatch+0x13b sys/kern/kern_softintr.c:84 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffffffff838a1ff0) at sched_idle+0x391 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: 250 End of stack trace.