panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff833aa896) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff833e9671,ffffffff833dbfab,90,ffffffff83382f47) at __assert+0x29 sys/kern/subr_prf.c:-1
uvm_pagealloc_pg(fffffd8008232458,fffffd806ec62b38,23e72c000,0) at uvm_pagealloc_pg+0x54b sys/uvm/uvm_page.c:707
uvm_pagealloc(fffffd806ec62b38,23e72c000,0,3) at uvm_pagealloc+0x252 sys/uvm/uvm_page.c:913
pmap_get_ptp(fffffd806ec62b00,47ce5850000) at pmap_get_ptp+0x1d0 sys/arch/amd64/amd64/pmap.c:-1
pmap_enter(fffffd806ec62b00,47ce5850000,7051d000,3,22) at pmap_enter+0x386 sys/arch/amd64/amd64/pmap.c:-1
uvm_fault_upper(ffff80002a356b50,ffff80002a356b88,ffff80002a356a50) at uvm_fault_upper+0x338 sys/uvm/uvm_fault.c:1139
uvm_fault(fffffd806c887020,47ce5850000,0,2) at uvm_fault+0x198 sys/uvm/uvm_fault.c:641
upageflttrap(ffff80002a356cf0,47ce5850620) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80002a356cf0) at usertrap+0x42f sys/arch/amd64/amd64/trap.c:622
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x47d0d227890, count: 246
End of stack trace.