panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff833b5173) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff833f01c2,ffffffff833e5d6f,90,ffffffff8338cd9f) at __assert+0x29 sys/kern/subr_prf.c:-1
uvm_pagealloc_pg(fffffd80086b6180,fffffd80626e8c38,d978000,0) at uvm_pagealloc_pg+0x54b sys/uvm/uvm_page.c:707
uvm_pagealloc(fffffd80626e8c38,d978000,0,3) at uvm_pagealloc+0x252 sys/uvm/uvm_page.c:913
pmap_get_ptp(fffffd80626e8c00,1b2f021000) at pmap_get_ptp+0x1d0 sys/arch/amd64/amd64/pmap.c:-1
pmap_enter(fffffd80626e8c00,1b2f021000,6a3a8000,1,20) at pmap_enter+0x386 sys/arch/amd64/amd64/pmap.c:-1
uvm_fault_lower_lookup(ffff80002a33de60,ffff80002a33de98,ffff80002a33dde0) at uvm_fault_lower_lookup+0x369 sys/uvm/uvm_fault.c:-1
uvm_fault_lower(ffff80002a33de60,ffff80002a33de98,ffff80002a33dde0) at uvm_fault_lower+0x89 sys/uvm/uvm_fault.c:1334
uvm_fault(fffffd80783e17c8,1b2f020000,0,1) at uvm_fault+0x274 sys/uvm/uvm_fault.c:-1
upageflttrap(ffff80002a33e000,1b2f020400) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80002a33e000) at usertrap+0x42f sys/arch/amd64/amd64/trap.c:632
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7bd968a7db90, count: 245
End of stack trace.