panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff82594650) at panic+0x16b sys/kern/subr_prf.c:233
__assert(ffffffff8260d8df,ffffffff825883ec,90,ffffffff82571062) at __assert+0x25 sys/kern/subr_prf.c:161
uvm_pagealloc_pg(fffffd8007d92ea0,fffffd80730ee628,2ade000,0) at uvm_pagealloc_pg+0x427 uvm_pageinsert sys/uvm/uvm_page.c:138 [inline]
uvm_pagealloc_pg(fffffd8007d92ea0,fffffd80730ee628,2ade000,0) at uvm_pagealloc_pg+0x427 sys/uvm/uvm_page.c:710
uvm_pagealloc(fffffd80730ee628,2ade000,0,3) at uvm_pagealloc+0x1e8 sys/uvm/uvm_page.c:918
pmap_get_ptp(fffffd80730ee5d8,ab787091000) at pmap_get_ptp+0x18d sys/arch/amd64/amd64/pmap.c:1183
pmap_enter(fffffd80730ee5d8,ab787091000,6c793000,5,20) at pmap_enter+0x2ac
uvm_fault_lower_lookup(ffff80002e3a6850,ffff80002e3a6888,ffff80002e3a67d0) at uvm_fault_lower_lookup+0x2a7 sys/uvm/uvm_fault.c:1183
uvm_fault_lower(ffff80002e3a6850,ffff80002e3a6888,ffff80002e3a67d0,0) at uvm_fault_lower+0x5f sys/uvm/uvm_fault.c:1218
uvm_fault(fffffd806aa46180,ab787094000,0,4) at uvm_fault+0x248
upageflttrap(ffff80002e3a69c0,ab7870949ba) at upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181
usertrap(ffff80002e3a69c0) at usertrap+0x1aa sys/arch/amd64/amd64/trap.c:403
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7f7fffffb790, count: 245
End of stack trace.
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