panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff830df719) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff830940d8,ffffffff8303810e,90,ffffffff83098378) at __assert+0x29
uvm_pagealloc_pg(fffffd8007f18740,fffffd806bf1d518,d99c000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695
uvm_pagealloc(fffffd806bf1d518,d99c000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912
pmap_get_ptp(fffffd806bf1d4e8,1b3385c000) at pmap_get_ptp+0x1c6
pmap_enter(fffffd806bf1d4e8,1b3385c000,75951000,3,20) at pmap_enter+0x389
uvm_fault_lower_lookup(ffff80002bf752b0,ffff80002bf752e8,ffff80002bf75230) at uvm_fault_lower_lookup+0x33c sys/uvm/uvm_fault.c:1192
uvm_fault_lower(ffff80002bf752b0,ffff80002bf752e8,ffff80002bf75230,0) at uvm_fault_lower+0x74 sys/uvm/uvm_fault.c:1227
uvm_fault(fffffd8068cf9a60,1b3385f000,0,2) at uvm_fault+0x301 sys/uvm/uvm_fault.c:637
upageflttrap(ffff80002bf75430,1b3385ff17) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff80002bf75430) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x799033ea1410, count: 245
End of stack trace.