panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff830d88d9) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff8308fc3c,ffffffff83032856,90,ffffffff83092968) at __assert+0x29
uvm_pagealloc_pg(fffffd8007564780,fffffd8065dfdcf8,2ca2000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695
uvm_pagealloc(fffffd8065dfdcf8,2ca2000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912
pmap_get_ptp(fffffd8065dfdca8,b28b0186000) at pmap_get_ptp+0x1c6
pmap_enter(fffffd8065dfdca8,b28b0186000,5ac95000,4,20) at pmap_enter+0x389
uvm_fault_lower_lookup(ffff8000371e7550,ffff8000371e7588,ffff8000371e74d0) at uvm_fault_lower_lookup+0x33c sys/uvm/uvm_fault.c:1192
uvm_fault_lower(ffff8000371e7550,ffff8000371e7588,ffff8000371e74d0,0) at uvm_fault_lower+0x74 sys/uvm/uvm_fault.c:1227
uvm_fault(fffffd806ec71378,b28b0189000,0,4) at uvm_fault+0x301 sys/uvm/uvm_fault.c:637
upageflttrap(ffff8000371e76d0,b28b01894d0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff8000371e76d0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0xb2b889e7300, count: 245
End of stack trace.