uvm_fault(fffffd806c2e5990,200000000000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1
upageflttrap(ffff80003c44b480,2000000000c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80003c44b480) at usertrap+0x3e3 sys/arch/amd64/amd64/trap.c:589
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7583216f5620, count: -21
ddb{0}> machine ddbcpu 1
Stopped at      proc_trampoline+0xc7:   movl    $0,%gs:0x688
proc_trampoline() at proc_trampoline+0xc7
end of kernel
end trace frame: 0x7c914eee5310, count: 14
ddb{1}> trace
proc_trampoline() at proc_trampoline+0xc7
end of kernel
end trace frame: 0x7c914eee5310, count: -1