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(fffffd8007f677a0,fffffd806beb6dd0,47abd3000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695
uvm_pagealloc(fffffd806beb6dd0,47abd3000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912
pmap_get_ptp(fffffd806beb6da0,8f57a75f000) at pmap_get_ptp+0x1c6
pmap_enter(fffffd806beb6da0,8f57a75f000,7ec04000,1,21) at pmap_enter+0x389
uvm_fault_lower(ffff800032192940,ffff800032192978,ffff8000321928c0,0) at uvm_fault_lower+0xa2d sys/uvm/uvm_fault.c:1518
uvm_fault(fffffd805ffa58a0,8f57a75f000,0,1) at uvm_fault+0x301 sys/uvm/uvm_fault.c:637
upageflttrap(ffff800032192ac0,8f57a75f04c) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff800032192ac0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x72d0026352e0, count: 246
End of stack trace.