panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff833b5f47) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff833f0e0d,ffffffff833df842,90,ffffffff83385c17) at __assert+0x29 sys/kern/subr_prf.c:-1
uvm_pagealloc_pg(fffffd800903a1c0,fffffd8075fdaa38,126425000,0) at uvm_pagealloc_pg+0x54b sys/uvm/uvm_page.c:707
uvm_pagealloc(fffffd8075fdaa38,126425000,0,3) at uvm_pagealloc+0x252 sys/uvm/uvm_page.c:913
pmap_get_ptp(fffffd8075fdaa00,24c84a91000) at pmap_get_ptp+0x1d0 sys/arch/amd64/amd64/pmap.c:-1
pmap_enter(fffffd8075fdaa00,24c84a91000,6b3bc000,1,20) at pmap_enter+0x386 sys/arch/amd64/amd64/pmap.c:-1
uvm_fault_upper_lookup(ffff80003c435b20,ffff80003c435b58,ffff80003c435a20,ffff80003c435aa0) at uvm_fault_upper_lookup+0x30d sys/uvm/uvm_fault.c:-1
uvm_fault(fffffd806b381210,24c84a92000,0,1) at uvm_fault+0x159 sys/uvm/uvm_fault.c:632
upageflttrap(ffff80003c435cc0,24c84a92e28) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80003c435cc0) at usertrap+0x42f sys/arch/amd64/amd64/trap.c:632
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x77142418f950, count: 246
End of stack trace.