syzbot

panic: kernel diagnostic assertion "uvm_page_owner_locked_p(pg)" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 1256
Starting stack trace...
panic(ffffffff8295a9b6) at panic+0x16f sys/kern/subr_prf.c:229
__assert(ffffffff8290befe,ffffffff828b2a5d,4e8,ffffffff82960eba) at __assert+0x29 sys/kern/subr_prf.c:157
uvm_pageunwire(fffffd8006badcc0) at uvm_pageunwire+0x16b sys/uvm/uvm_page.c:1256
uvm_fault_unwire_locked(fffffd805ce7f6e8,a35e846a000,a35e8669000) at uvm_fault_unwire_locked+0x242 sys/uvm/uvm_fault.c:1695
uvm_unmap_kill_entry_withlock(fffffd805ce7f6e8,fffffd8051ff5ed0,0) at uvm_unmap_kill_entry_withlock+0x6b sys/uvm/uvm_map.c:1894
uvm_map_teardown(fffffd805ce7f6e8) at uvm_map_teardown+0x1c7 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
uvm_map_teardown(fffffd805ce7f6e8) at uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2534
uvmspace_free(fffffd805ce7f6e8) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3461
reaper(ffff80002a149488) at reaper+0x197 sys/kern/kern_exit.c:463
end trace frame: 0x0, count: 249
End of stack trace.