panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff833a710e) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff833e9359,ffffffff833d7dde,90,ffffffff8337e851) at __assert+0x29 sys/kern/subr_prf.c:-1
uvm_pagealloc_pg(fffffd8004a504c8,fffffd806c9ab438,66b3f1000,0) at uvm_pagealloc_pg+0x54b sys/uvm/uvm_page.c:707
uvm_pagealloc(fffffd806c9ab438,66b3f1000,0,3) at uvm_pagealloc+0x252 sys/uvm/uvm_page.c:913
pmap_get_ptp(fffffd806c9ab400,cd67e3db000) at pmap_get_ptp+0x1d0 sys/arch/amd64/amd64/pmap.c:-1
pmap_enter(fffffd806c9ab400,cd67e3db000,5f86b000,3,21) at pmap_enter+0x386 sys/arch/amd64/amd64/pmap.c:-1
uvm_fault_upper(ffff8000357f0360,ffff8000357f0398,ffff8000357f0260) at uvm_fault_upper+0x338 sys/uvm/uvm_fault.c:1139
uvm_fault(fffffd800b0635b8,cd67e3db000,0,1) at uvm_fault+0x198 sys/uvm/uvm_fault.c:641
upageflttrap(ffff8000357f0500,cd67e3db548) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff8000357f0500) at usertrap+0x42f sys/arch/amd64/amd64/trap.c:622
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7532947b76c0, count: 246
End of stack trace.