panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff830de31b) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff83091731,ffffffff830339f9,90,ffffffff83093f34) at __assert+0x29
uvm_pagealloc_pg(fffffd8007b750a0,fffffd806baf5328,bdaa3000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695
uvm_pagealloc(fffffd806baf5328,bdaa3000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912
pmap_get_ptp(fffffd806baf52f8,17b54715000) at pmap_get_ptp+0x1c6
pmap_enter(fffffd806baf52f8,17b54715000,60fef000,1,20) at pmap_enter+0x389
uvm_fault_upper_lookup(ffff8000371cad50,ffff8000371cad88,ffff8000371cac50,ffff8000371cacd0) at uvm_fault_upper_lookup+0x389
uvm_fault(fffffd806ecf9530,17b54714000,0,1) at uvm_fault+0x169 sys/uvm/uvm_fault.c:605
upageflttrap(ffff8000371caed0,17b54714fd8) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff8000371caed0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7cc6c904dab0, count: 246
End of stack trace.