panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff833b1079) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff833f126e,ffffffff833e4f30,90,ffffffff8338b55b) at __assert+0x29 sys/kern/subr_prf.c:-1
uvm_pagealloc_pg(fffffd80088af4b0,fffffd806ec29e58,8000000,0) at uvm_pagealloc_pg+0x54b sys/uvm/uvm_page.c:707
uvm_pagealloc(fffffd806ec29e58,8000000,0,3) at uvm_pagealloc+0x252 sys/uvm/uvm_page.c:913
pmap_get_ptp(fffffd806ec29e00,200000000000) at pmap_get_ptp+0x1d0 sys/arch/amd64/amd64/pmap.c:-1
pmap_enter(fffffd806ec29e00,200000000000,5ecfb000,3,22) at pmap_enter+0x386 sys/arch/amd64/amd64/pmap.c:-1
uvm_fault_upper(ffff80003c444ce0,ffff80003c444d18,ffff80003c444be0) at uvm_fault_upper+0x338 sys/uvm/uvm_fault.c:1131
uvm_fault(fffffd806c8e2b90,200000000000,0,2) at uvm_fault+0x198 sys/uvm/uvm_fault.c:635
upageflttrap(ffff80003c444e80,200000000000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80003c444e80) at usertrap+0x42f sys/arch/amd64/amd64/trap.c:632
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x72cd1ca0eb90, count: 246
End of stack trace.