panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff830db999) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff8308de81,ffffffff83036515,90,ffffffff83096219) at __assert+0x29
uvm_pagealloc_pg(fffffd8007d58e00,fffffd80617dbbd0,3c3cce9000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695
uvm_pagealloc(fffffd80617dbbd0,3c3cce9000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912
pmap_get_ptp(fffffd80617dbba0,78799d287000) at pmap_get_ptp+0x1c6
pmap_enter(fffffd80617dbba0,78799d287000,688d8000,1,20) at pmap_enter+0x389
uvm_fault_upper_lookup(ffff8000371cb5f0,ffff8000371cb628,ffff8000371cb4f0,ffff8000371cb570) at uvm_fault_upper_lookup+0x389
uvm_fault(fffffd807d72cc20,78799d288000,0,1) at uvm_fault+0x169 sys/uvm/uvm_fault.c:605
upageflttrap(ffff8000371cb770,78799d288b70) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff8000371cb770) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x78799d288b90, count: 246
End of stack trace.