panic: kernel diagnostic assertion "scan->kqs_start.kn_filter == EVFILT_MARKER" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/kern_event.c", line 1564
Starting stack trace...
panic(ffffffff828aa32f) at panic+0x16f sys/kern/subr_prf.c:229
__assert(ffffffff8292f138,ffffffff8291e1a4,61c,ffffffff828c64ff) at __assert+0x29 sys/kern/subr_prf.c:157
kqueue_scan_finish(ffff80002edb6ff0) at kqueue_scan_finish+0x14c sys/kern/kern_event.c:1565
sys_kevent(0,0,0) at sys_kevent+0x6b6 sys/kern/kern_event.c:1076
end trace frame: 0x0, count: 253
End of stack trace.