panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff833af0f2) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff833ef65b,ffffffff833e5a0f,90,ffffffff8338c5c6) at __assert+0x29 sys/kern/subr_prf.c:-1
uvm_pagealloc_pg(fffffd8007de94f0,fffffd806c4fbc38,5e548e000,0) at uvm_pagealloc_pg+0x54b sys/uvm/uvm_page.c:707
uvm_pagealloc(fffffd806c4fbc38,5e548e000,0,3) at uvm_pagealloc+0x252 sys/uvm/uvm_page.c:913
pmap_get_ptp(fffffd806c4fbc00,bca91df9000) at pmap_get_ptp+0x1d0 sys/arch/amd64/amd64/pmap.c:-1
pmap_enter(fffffd806c4fbc00,bca91df9000,5aa9f000,3,20) at pmap_enter+0x38a sys/arch/amd64/amd64/pmap.c:-1
uvm_fault_upper_lookup(ffff80003c401e40,ffff80003c401e78,ffff80003c401d40,ffff80003c401dc0) at uvm_fault_upper_lookup+0x30d sys/uvm/uvm_fault.c:-1
uvm_fault(fffffd806c97c018,bca91dfa000,0,1) at uvm_fault+0x159 sys/uvm/uvm_fault.c:632
upageflttrap(ffff80003c401fe0,bca91dfa170) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80003c401fe0) at usertrap+0x42f sys/arch/amd64/amd64/trap.c:632
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0xbca91dfa200, count: 246
End of stack trace.