panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff827a61e8) at panic+0x16f sys/kern/subr_prf.c:229
__assert(ffffffff82827b72,ffffffff82793764,90,ffffffff8277ad90) at __assert+0x29 sys/kern/subr_prf.c:157
uvm_pagealloc_pg(fffffd8007d05ae0,fffffd80729e5320,e38a000,0) at uvm_pagealloc_pg+0x427 uvm_pageinsert sys/uvm/uvm_page.c:138 [inline]
uvm_pagealloc_pg(fffffd8007d05ae0,fffffd80729e5320,e38a000,0) at uvm_pagealloc_pg+0x427 sys/uvm/uvm_page.c:709
uvm_pagealloc(fffffd80729e5320,e38a000,0,3) at uvm_pagealloc+0x1ec sys/uvm/uvm_page.c:917
pmap_get_ptp(fffffd80729e52f0,1c714da000) at pmap_get_ptp+0x18d sys/arch/amd64/amd64/pmap.c:1215
pmap_enter(fffffd80729e52f0,1c714da000,76963000,3,20) at pmap_enter+0x2be sys/arch/amd64/amd64/pmap.c:2722
uvm_fault_upper_lookup(ffff80002f1068f0,ffff80002f106928,ffff80002f1067f0,ffff80002f106870) at uvm_fault_upper_lookup+0x2c0 sys/uvm/uvm_fault.c:895
uvm_fault(fffffd80729e6948,1c714db000,0,1) at uvm_fault+0x129 sys/uvm/uvm_fault.c:605
upageflttrap(ffff80002f106a70,1c714db7ec) at upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff80002f106a70) at usertrap+0x226 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x772e3a585220, count: 246
End of stack trace.