panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff833b3b42) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff833f159a,ffffffff833e60c5,90,ffffffff8338d17e) at __assert+0x29 sys/kern/subr_prf.c:-1
uvm_pagealloc_pg(fffffd80085398c0,fffffd806c6f1538,37c9ec0000,0) at uvm_pagealloc_pg+0x54b sys/uvm/uvm_page.c:707
uvm_pagealloc(fffffd806c6f1538,37c9ec0000,0,3) at uvm_pagealloc+0x252 sys/uvm/uvm_page.c:913
pmap_get_ptp(fffffd806c6f1500,6f93d81b1000) at pmap_get_ptp+0x1d0 sys/arch/amd64/amd64/pmap.c:-1
pmap_enter(fffffd806c6f1500,6f93d81b1000,63e50000,3,21) at pmap_enter+0x38a sys/arch/amd64/amd64/pmap.c:-1
uvm_fault_upper(ffff80002a2f2170,ffff80002a2f21a8,ffff80002a2f2070) at uvm_fault_upper+0x338 sys/uvm/uvm_fault.c:1131
uvm_fault(fffffd806c7029a8,6f93d81b1000,0,1) at uvm_fault+0x198 sys/uvm/uvm_fault.c:635
upageflttrap(ffff80002a2f2310,6f93d81b1b60) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80002a2f2310) at usertrap+0x42f sys/arch/amd64/amd64/trap.c:632
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x6f93d81b1b90, count: 246
End of stack trace.