panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff825a9a4c) at panic+0x16b sys/kern/subr_prf.c:229
__assert(ffffffff826209df,ffffffff82596b3a,90,ffffffff8257f7b3) at __assert+0x25 sys/kern/subr_prf.c:157
uvm_pagealloc_pg(fffffd8007a125a0,fffffd805d823320,2b2c75000,0) at uvm_pagealloc_pg+0x427 uvm_pageinsert sys/uvm/uvm_page.c:138 [inline]
uvm_pagealloc_pg(fffffd8007a125a0,fffffd805d823320,2b2c75000,0) at uvm_pagealloc_pg+0x427 sys/uvm/uvm_page.c:709
uvm_pagealloc(fffffd805d823320,2b2c75000,0,3) at uvm_pagealloc+0x1e8 sys/uvm/uvm_page.c:917
pmap_get_ptp(fffffd805d8232f0,5658ea26000) at pmap_get_ptp+0x18d sys/arch/amd64/amd64/pmap.c:1183
pmap_enter(fffffd805d8232f0,5658ea26000,7a1ff000,3,21) at pmap_enter+0x2ba sys/arch/amd64/amd64/pmap.c:2697
uvm_fault_upper(ffff8000213211b0,ffff8000213211e8,ffff8000213210b0,0) at uvm_fault_upper+0x2b1 sys/uvm/uvm_fault.c:1057
uvm_fault(fffffd8067b832e0,5658ea26000,0,1) at uvm_fault+0x154 sys/uvm/uvm_fault.c:609
upageflttrap(ffff800021321320,5658ea26000) at upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181
usertrap(ffff800021321320) at usertrap+0x1aa sys/arch/amd64/amd64/trap.c:417
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7f7ffffbc660, count: 246
End of stack trace.
syncing disks...51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51  giving up