login: panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff8339ee14) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff833e0d19,ffffffff833cf59f,90,ffffffff8337632a) at __assert+0x29 sys/kern/subr_prf.c:-1
uvm_pagealloc_pg(fffffd80087f1578,fffffd806c979458,1f193000,0) at uvm_pagealloc_pg+0x54b sys/uvm/uvm_page.c:707
uvm_pagealloc(fffffd806c979458,1f193000,0,3) at uvm_pagealloc+0x252 sys/uvm/uvm_page.c:913
pmap_get_ptp(fffffd806c979400,7c64fdbb9000) at pmap_get_ptp+0x1d0 sys/arch/amd64/amd64/pmap.c:-1
pmap_enter(fffffd806c979400,7c64fdbb9000,6c675000,3,21) at pmap_enter+0x386 sys/arch/amd64/amd64/pmap.c:-1
uvm_fault_upper(ffff80002a3924a0,ffff80002a3924d8,ffff80002a3923a0) at uvm_fault_upper+0x338 sys/uvm/uvm_fault.c:1139
uvm_fault(fffffd806f7b83d8,7c64fdbb9000,0,1) at uvm_fault+0x198 sys/uvm/uvm_fault.c:641
upageflttrap(ffff80002a392640,7c64fdbb97e0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80002a392640) at usertrap+0x42f sys/arch/amd64/amd64/trap.c:622
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7c64fdbb9800, count: 246
End of stack trace.