panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff830d8558) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff83091e2e,ffffffff83039e04,90,ffffffff83099907) at __assert+0x29
uvm_pagealloc_pg(fffffd80077086a0,fffffd80753569e8,6b89c1000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695
uvm_pagealloc(fffffd80753569e8,6b89c1000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912
pmap_get_ptp(fffffd80753569b8,d7138213000) at pmap_get_ptp+0x1c6
pmap_enter(fffffd80753569b8,d7138213000,6afa8000,1,20) at pmap_enter+0x389
uvm_fault_lower_lookup(ffff80002b4e03b0,ffff80002b4e03e8,ffff80002b4e0330) at uvm_fault_lower_lookup+0x33c sys/uvm/uvm_fault.c:1192
uvm_fault_lower(ffff80002b4e03b0,ffff80002b4e03e8,ffff80002b4e0330,0) at uvm_fault_lower+0x74 sys/uvm/uvm_fault.c:1227
uvm_fault(fffffd806bf30528,d7138212000,0,1) at uvm_fault+0x301 sys/uvm/uvm_fault.c:637
upageflttrap(ffff80002b4e0530,d7138212294) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff80002b4e0530) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x77668cd71260, count: 245
End of stack trace.