panic: kernel diagnostic assertion "pg->wire_count != 0" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 1250
Stopped at      db_enter+0x25:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
  92298  35080      0      0x1000  0x4080000    1  syz-executor
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff834c2566) at panic+0x1e5 sys/kern/subr_prf.c:198
__assert(ffffffff834fcad7,ffffffff834f03bf,4e2,ffffffff83452436) at __assert+0x29 sys/kern/subr_prf.c:-1
uvm_pageunwire(fffffd800949b4a8) at uvm_pageunwire+0x17d sys/uvm/uvm_page.c:1249
uvm_fault_unwire_locked(fffffd80761953e8,da6bef01000,da6bf300000) at uvm_fault_unwire_locked+0x33a sys/uvm/uvm_fault.c:1790
uvm_unmap_kill_entry_withlock(fffffd80761953e8,fffffd806ea4e8d8,0) at uvm_unmap_kill_entry_withlock+0x81 sys/uvm/uvm_map.c:1866
uvm_map_teardown(fffffd80761953e8) at uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline]
uvm_map_teardown(fffffd80761953e8) at uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2497
exit1(ffff8000353a9a20,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260
sys_exit(ffff8000353a9a20,ffff80002a288290,ffff80002a2881e0) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80002a288290) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a288290) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7426e4fef720, count: 4
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports.  Insufficient info makes it difficult to find and fix bugs.
ddb{0}> 
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: kernel diagnostic assertion "pg->wire_count != 0" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 1250
ddb{0}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff834c2566) at panic+0x1e5 sys/kern/subr_prf.c:198
__assert(ffffffff834fcad7,ffffffff834f03bf,4e2,ffffffff83452436) at __assert+0x29 sys/kern/subr_prf.c:-1
uvm_pageunwire(fffffd800949b4a8) at uvm_pageunwire+0x17d sys/uvm/uvm_page.c:1249
uvm_fault_unwire_locked(fffffd80761953e8,da6bef01000,da6bf300000) at uvm_fault_unwire_locked+0x33a sys/uvm/uvm_fault.c:1790
uvm_unmap_kill_entry_withlock(fffffd80761953e8,fffffd806ea4e8d8,0) at uvm_unmap_kill_entry_withlock+0x81 sys/uvm/uvm_map.c:1866
uvm_map_teardown(fffffd80761953e8) at uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline]
uvm_map_teardown(fffffd80761953e8) at uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2497
exit1(ffff8000353a9a20,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260
sys_exit(ffff8000353a9a20,ffff80002a288290,ffff80002a2881e0) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80002a288290) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a288290) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7426e4fef720, count: -11
ddb{0}>