panic: kernel diagnostic assertion "uvm_page_owner_locked_p(pg)" failed: file "/syzkaller/managers/main/kernel/sys/uvm/uvm_page.c", line 1248 Starting stack trace... panic(ffffffff830b927a) at panic+0x1ba sys/kern/subr_prf.c:229 __assert(ffffffff83072916,ffffffff82fc48f2,4e0,ffffffff830c7eca) at __assert+0x29 uvm_pageunwire(fffffd800680f800) at uvm_pageunwire+0x1dd sys/uvm/uvm_page.c:1248 uvm_fault_unwire_locked(fffffd8065fe0438,aa7e611f000,aa7e631e000) at uvm_fault_unwire_locked+0x33c sys/uvm/uvm_fault.c:1729 uvm_unmap_kill_entry_withlock(fffffd8065fe0438,fffffd806f328750,0) at uvm_unmap_kill_entry_withlock+0x81 sys/uvm/uvm_map.c:1860 uvm_map_teardown(fffffd8065fe0438) at uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2496 uvmspace_free(fffffd8065fe0438) at uvmspace_free+0xbd sys/uvm/uvm_map.c:3420 reaper(ffff80002a457be0) at reaper+0x225 sys/kern/kern_exit.c:478 end trace frame: 0x0, count: 249 End of stack trace.