panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff8295b44d) at panic+0x16f sys/kern/subr_prf.c:229
__assert(ffffffff8290d634,ffffffff828b50d9,90,ffffffff82914988) at __assert+0x29 sys/kern/subr_prf.c:157
uvm_pagealloc_pg(fffffd8007741920,fffffd8064b919f0,218e5e000,0) at uvm_pagealloc_pg+0x3e9 sys/uvm/uvm_page.c:695
uvm_pagealloc(fffffd8064b919f0,218e5e000,0,3) at uvm_pagealloc+0x1ed sys/uvm/uvm_page.c:917
pmap_get_ptp(fffffd8064b919c0,431cbd64000) at pmap_get_ptp+0x18d sys/arch/amd64/amd64/pmap.c:1215
pmap_enter(fffffd8064b919c0,431cbd64000,7e01a000,1,21) at pmap_enter+0x2c6 sys/arch/amd64/amd64/pmap.c:2722
uvm_fault_lower(ffff80002f0c50a0,ffff80002f0c50d8,ffff80002f0c5020,0) at uvm_fault_lower+0x77c sys/uvm/uvm_fault.c:1518
uvm_fault(fffffd806494a530,431cbd64000,0,1) at uvm_fault+0x255 sys/uvm/uvm_fault.c:637
upageflttrap(ffff80002f0c5220,431cbd6404c) at upageflttrap+0x8e sys/arch/amd64/amd64/trap.c:188
usertrap(ffff80002f0c5220) at usertrap+0x22a sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7b29875846d0, count: 246
End of stack trace.