panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/main/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff8337cc7b) at panic+0x1ba sys/kern/subr_prf.c:229
__assert(ffffffff833bb11a,ffffffff833a810d,90,ffffffff8335a0b3) at __assert+0x29 sys/kern/subr_prf.c:-1
uvm_pagealloc_pg(fffffd8006b51580,fffffd800bf4f0f8,3cb2c99000,0) at uvm_pagealloc_pg+0x54b sys/uvm/uvm_page.c:707
uvm_pagealloc(fffffd800bf4f0f8,3cb2c99000,0,3) at uvm_pagealloc+0x252 sys/uvm/uvm_page.c:913
pmap_get_ptp(fffffd800bf4f0e8,79659337b000) at pmap_get_ptp+0x1d0 sys/arch/amd64/amd64/pmap.c:-1
pmap_enter(fffffd800bf4f0e8,79659337b000,6d8f2000,3,22) at pmap_enter+0x3a3 sys/arch/amd64/amd64/pmap.c:-1
uvm_fault_upper(ffff8000314f7990,ffff8000314f79c8,ffff8000314f7890) at uvm_fault_upper+0x474 sys/uvm/uvm_fault.c:1131
uvm_fault(fffffd806c9cb5d0,79659337b000,0,2) at uvm_fault+0x178 sys/uvm/uvm_fault.c:635
upageflttrap(ffff8000314f7b30,79659337b2a8) at upageflttrap+0xa0 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff8000314f7b30) at usertrap+0x413 sys/arch/amd64/amd64/trap.c:632
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x79659337b340, count: 246
End of stack trace.