login: panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff830e0f13) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff83095ec9,ffffffff83038877,90,ffffffff83098fae) at __assert+0x29
uvm_pagealloc_pg(fffffd800725a920,fffffd806e07c9e8,1147cf000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695
uvm_pagealloc(fffffd806e07c9e8,1147cf000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912
pmap_get_ptp(fffffd806e07c9b8,228f9e2c000) at pmap_get_ptp+0x1c6
pmap_enter(fffffd806e07c9b8,228f9e2c000,5e48f000,4,20) at pmap_enter+0x389
uvm_fault_lower_lookup(ffff80002a06fef0,ffff80002a06ff28,ffff80002a06fe70) at uvm_fault_lower_lookup+0x33c sys/uvm/uvm_fault.c:1192
uvm_fault_lower(ffff80002a06fef0,ffff80002a06ff28,ffff80002a06fe70,0) at uvm_fault_lower+0x74 sys/uvm/uvm_fault.c:1227
uvm_fault(fffffd806bd3cc20,228f9e2f000,0,4) at uvm_fault+0x301 sys/uvm/uvm_fault.c:637
upageflttrap(ffff80002a070070,228f9e2ff6f) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff80002a070070) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x70c61dcc9b50, count: 245
End of stack trace.