panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff833b25de) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff833f06fd,ffffffff833e3066,90,ffffffff83389d51) at __assert+0x29 sys/kern/subr_prf.c:-1
uvm_pagealloc_pg(fffffd80049340a8,fffffd806c869638,ebc0000,0) at uvm_pagealloc_pg+0x54b sys/uvm/uvm_page.c:707
uvm_pagealloc(fffffd806c869638,ebc0000,0,3) at uvm_pagealloc+0x252 sys/uvm/uvm_page.c:913
pmap_get_ptp(fffffd806c869600,1d7805a000) at pmap_get_ptp+0x1d0 sys/arch/amd64/amd64/pmap.c:-1
pmap_enter(fffffd806c869600,1d7805a000,6d79a000,4,20) at pmap_enter+0x386 sys/arch/amd64/amd64/pmap.c:-1
uvm_fault_lower_lookup(ffff80002a7d42d0,ffff80002a7d4308,ffff80002a7d4250) at uvm_fault_lower_lookup+0x369 sys/uvm/uvm_fault.c:-1
uvm_fault_lower(ffff80002a7d42d0,ffff80002a7d4308,ffff80002a7d4250) at uvm_fault_lower+0x89 sys/uvm/uvm_fault.c:1334
uvm_fault(fffffd806ca767b8,1d7805d000,0,4) at uvm_fault+0x274 sys/uvm/uvm_fault.c:-1
upageflttrap(ffff80002a7d4470,1d7805d7eb) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80002a7d4470) at usertrap+0x42f sys/arch/amd64/amd64/trap.c:632
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7d6237560b30, count: 245
End of stack trace.
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