panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff830e1479) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff83095269,ffffffff830381f4,90,ffffffff83098330) at __assert+0x29
uvm_pagealloc_pg(fffffd8008a8c580,fffffd806ba1eec8,d981000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695
uvm_pagealloc(fffffd806ba1eec8,d981000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912
pmap_get_ptp(fffffd806ba1ee98,1b3031f000) at pmap_get_ptp+0x1c6
pmap_enter(fffffd806ba1ee98,1b3031f000,6b97f000,3,22) at pmap_enter+0x389
uvm_fault_lower(ffff80002a0b01e0,ffff80002a0b0218,ffff80002a0b0160,0) at uvm_fault_lower+0xa2d sys/uvm/uvm_fault.c:1518
uvm_fault(fffffd806bb8c530,1b3031f000,0,2) at uvm_fault+0x301 sys/uvm/uvm_fault.c:637
upageflttrap(ffff80002a0b0360,1b3031ff6c) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff80002a0b0360) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x703867c05b00, count: 246
End of stack trace.