panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff834487e9) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff83488965,ffffffff8347db72,90,ffffffff83425f2f) at __assert+0x29 sys/kern/subr_prf.c:-1
uvm_pagealloc_pg(fffffd8004ab0c70,fffffd800de7b538,1799da000,0) at uvm_pagealloc_pg+0x54b sys/uvm/uvm_page.c:707
uvm_pagealloc(fffffd800de7b538,1799da000,0,3) at uvm_pagealloc+0x252 sys/uvm/uvm_page.c:913
pmap_get_ptp(fffffd800de7b500,2f33b41a000) at pmap_get_ptp+0x1d0 sys/arch/amd64/amd64/pmap.c:-1
pmap_enter(fffffd800de7b500,2f33b41a000,79826000,3,20) at pmap_enter+0x38a sys/arch/amd64/amd64/pmap.c:-1
uvm_fault_upper_lookup(ffff80002a2c0940,ffff80002a2c0978,ffff80002a2c0840,ffff80002a2c08c0) at uvm_fault_upper_lookup+0x30d sys/uvm/uvm_fault.c:-1
uvm_fault(fffffd806c6b35d8,2f33b41b000,0,1) at uvm_fault+0x159 sys/uvm/uvm_fault.c:632
upageflttrap(ffff80002a2c0ae0,2f33b41ba34) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80002a2c0ae0) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7980502f3b10, count: 246
End of stack trace.