login: panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff830daea6) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff83091e03,ffffffff8303275f,90,ffffffff8309295e) at __assert+0x29
uvm_pagealloc_pg(fffffd800876b7c0,fffffd806411c328,38356f8000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695
uvm_pagealloc(fffffd806411c328,38356f8000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912
pmap_get_ptp(fffffd806411c2f8,706adf126000) at pmap_get_ptp+0x1c6
pmap_enter(fffffd806411c2f8,706adf126000,71a4b000,1,20) at pmap_enter+0x389
uvm_fault_upper_lookup(ffff8000371b7200,ffff8000371b7238,ffff8000371b7100,ffff8000371b7180) at uvm_fault_upper_lookup+0x389
uvm_fault(fffffd80594d3c08,706adf127000,0,1) at uvm_fault+0x169 sys/uvm/uvm_fault.c:605
upageflttrap(ffff8000371b7380,706adf127b90) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff8000371b7380) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x706adf127bc0, count: 246
End of stack trace.