panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff833af6fe) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff833f0ba8,ffffffff833e2b33,90,ffffffff83389cf9) at __assert+0x29 sys/kern/subr_prf.c:-1
uvm_pagealloc_pg(fffffd8004b5fd28,fffffd800b062038,2ffe5f000,0) at uvm_pagealloc_pg+0x54b sys/uvm/uvm_page.c:707
uvm_pagealloc(fffffd800b062038,2ffe5f000,0,3) at uvm_pagealloc+0x252 sys/uvm/uvm_page.c:913
pmap_get_ptp(fffffd800b062000,5ffcbeb4000) at pmap_get_ptp+0x1d0 sys/arch/amd64/amd64/pmap.c:-1
pmap_enter(fffffd800b062000,5ffcbeb4000,7048b000,1,21) at pmap_enter+0x386 sys/arch/amd64/amd64/pmap.c:-1
uvm_fault_lower(ffff80002a803b70,ffff80002a803ba8,ffff80002a803af0) at uvm_fault_lower+0x5d6 sys/uvm/uvm_fault.c:1504
uvm_fault(fffffd806cae7d70,5ffcbeb4000,0,1) at uvm_fault+0x274 sys/uvm/uvm_fault.c:-1
upageflttrap(ffff80002a803d10,5ffcbeb404c) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80002a803d10) at usertrap+0x42f sys/arch/amd64/amd64/trap.c:632
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x70f5100042c0, count: 246
End of stack trace.