panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff830db999) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff8308de81,ffffffff83036515,90,ffffffff83096219) at __assert+0x29
uvm_pagealloc_pg(fffffd80070a0c80,fffffd80532d1410,75c3fc000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695
uvm_pagealloc(fffffd80532d1410,75c3fc000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912
pmap_get_ptp(fffffd80532d13e0,eb87f892000) at pmap_get_ptp+0x1c6
pmap_enter(fffffd80532d13e0,eb87f892000,5c0e1000,4,20) at pmap_enter+0x389
uvm_fault_lower_lookup(ffff80002cb17f30,ffff80002cb17f68,ffff80002cb17eb0) at uvm_fault_lower_lookup+0x33c sys/uvm/uvm_fault.c:1192
uvm_fault_lower(ffff80002cb17f30,ffff80002cb17f68,ffff80002cb17eb0,0) at uvm_fault_lower+0x74 sys/uvm/uvm_fault.c:1227
uvm_fault(fffffd8068f9adc8,eb87f895000,0,4) at uvm_fault+0x301 sys/uvm/uvm_fault.c:637
upageflttrap(ffff80002cb180b0,eb87f89520b) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff80002cb180b0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7adbf710fb90, count: 245
End of stack trace.