panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff82958636) at panic+0x16f sys/kern/subr_prf.c:229
__assert(ffffffff8290d601,ffffffff828b6675,90,ffffffff82915de4) at __assert+0x29 sys/kern/subr_prf.c:157
uvm_pagealloc_pg(fffffd80081256c0,fffffd8060c9ddd0,16bc69000,0) at uvm_pagealloc_pg+0x3e9 sys/uvm/uvm_page.c:695
uvm_pagealloc(fffffd8060c9ddd0,16bc69000,0,3) at uvm_pagealloc+0x1ed sys/uvm/uvm_page.c:917
pmap_get_ptp(fffffd8060c9dda0,2d78d30f000) at pmap_get_ptp+0x18d sys/arch/amd64/amd64/pmap.c:1215
pmap_enter(fffffd8060c9dda0,2d78d30f000,6facc000,4,20) at pmap_enter+0x2c6 sys/arch/amd64/amd64/pmap.c:2722
uvm_fault_lower_lookup(ffff80002a295060,ffff80002a295098,ffff80002a294fe0) at uvm_fault_lower_lookup+0x29b sys/uvm/uvm_fault.c:1192
uvm_fault_lower(ffff80002a295060,ffff80002a295098,ffff80002a294fe0,0) at uvm_fault_lower+0x62 sys/uvm/uvm_fault.c:1227
uvm_fault(fffffd80690ab6e0,2d78d312000,0,4) at uvm_fault+0x255 sys/uvm/uvm_fault.c:637
upageflttrap(ffff80002a2951e0,2d78d312fdb) at upageflttrap+0x8b sys/arch/amd64/amd64/trap.c:188
usertrap(ffff80002a2951e0) at usertrap+0x227 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7d702cb2b880, count: 245
End of stack trace.