panic: kernel diagnostic assertion "uvm_page_owner_locked_p(pg, TRUE)" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 1248
Starting stack trace...
panic(ffffffff8315cb7e) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff831146ca,ffffffff830b5125,4e0,ffffffff83090e03) at __assert+0x29
uvm_pageunwire(fffffd800862a9a0) at uvm_pageunwire+0x1dd sys/uvm/uvm_page.c:1248
uvm_fault_unwire_locked(fffffd806bfbd018,e49a61e6000,e49a65e5000) at uvm_fault_unwire_locked+0x33c sys/uvm/uvm_fault.c:1774
uvm_unmap_kill_entry_withlock(fffffd806bfbd018,fffffd806bf2eb50,0) at uvm_unmap_kill_entry_withlock+0x81 sys/uvm/uvm_map.c:1860
uvm_map_teardown(fffffd806bfbd018) at uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2496
uvmspace_free(fffffd806bfbd018) at uvmspace_free+0xcd sys/uvm/uvm_map.c:3420
reaper(ffff8000ffffd1c0) at reaper+0x246 sys/kern/kern_exit.c:477
end trace frame: 0x0, count: 249
End of stack trace.