panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff830e46d8) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff83096fdc,ffffffff830394a1,90,ffffffff830991c9) at __assert+0x29
uvm_pagealloc_pg(fffffd8007d68a00,fffffd8069544040,561ae5000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695
uvm_pagealloc(fffffd8069544040,561ae5000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912
pmap_get_ptp(fffffd8069544010,ac35cbc4000) at pmap_get_ptp+0x1c6
pmap_enter(fffffd8069544010,ac35cbc4000,5b1e5000,3,20) at pmap_enter+0x389
uvm_fault_upper_lookup(ffff80003728b020,ffff80003728b058,ffff80003728af20,ffff80003728afa0) at uvm_fault_upper_lookup+0x389
uvm_fault(fffffd8069574dd8,ac35cbc7000,0,1) at uvm_fault+0x169 sys/uvm/uvm_fault.c:605
upageflttrap(ffff80003728b1a0,ac35cbc7080) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff80003728b1a0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0xac3e322bd10, count: 246
End of stack trace.