panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/main/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff83368054) at panic+0x1ba sys/kern/subr_prf.c:229
__assert(ffffffff833a7a97,ffffffff8338bda7,90,ffffffff8333e450) at __assert+0x29 sys/kern/subr_prf.c:-1
uvm_pagealloc_pg(fffffd8006fda800,fffffd807665e020,8861000,0) at uvm_pagealloc_pg+0x54b sys/uvm/uvm_page.c:707
uvm_pagealloc(fffffd807665e020,8861000,0,3) at uvm_pagealloc+0x252 sys/uvm/uvm_page.c:913
pmap_get_ptp(fffffd807665e010,110c232000) at pmap_get_ptp+0x1d0 sys/arch/amd64/amd64/pmap.c:-1
pmap_enter(fffffd807665e010,110c232000,6cc67000,1,20) at pmap_enter+0x39c sys/arch/amd64/amd64/pmap.c:-1
uvm_fault_lower_lookup(ffff80002a8494a0,ffff80002a8494d8,ffff80002a849420) at uvm_fault_lower_lookup+0x395 sys/uvm/uvm_fault.c:-1
uvm_fault_lower(ffff80002a8494a0,ffff80002a8494d8,ffff80002a849420) at uvm_fault_lower+0x85 sys/uvm/uvm_fault.c:1348
uvm_fault(fffffd80733e95d8,110c230000,0,1) at uvm_fault+0x241 sys/uvm/uvm_fault.c:-1
upageflttrap(ffff80002a849640,110c230000) at upageflttrap+0xa0 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80002a849640) at usertrap+0x413 sys/arch/amd64/amd64/trap.c:622
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7367614cd890, count: 245
End of stack trace.