Hello,

I'm using marss86+dramsim2
I made a checkpoint of sphinx3 after fastfowarding 10 billions instructions
and simulated the checkpoint.

here is the middle of the log

Completed    1060261000 cycles,     415478808 commits:    940320 Hz,
332565 insns/sec: rip 000000000041e5cf
Completed    1060450000 cycles,     415546041 commits:    940386 Hz,
334523 insns/sec: rip 000000000041e5cf
Completed    1060633000 cycles,     415610543 commits:    912773 Hz,
321725 insns/sec: rip 0000000000402a25
Completed    1060811000 cycles,     415672043 commits:    889292 Hz,
307255 insns/sec: rip 0000000000415c42
Completed    1061031000 cycles,     415712907 commits:   1099278 Hz,
204185 insns/sec: rip ffffffff8105f411
Completed    1061175000 cycles,     415825905 commits:    715988 Hz,
561841 insns/sec: rip ffffffff810c043a
Completed    1061237000 cycles,     416011905 commits:    307139 Hz,
921417 insns/sec: rip ffffffff810c043a
Completed    1061299000 cycles,     416197905 commits:    306858 Hz,
920576 insns/sec: rip ffffffff810c043a
Completed    1061361000 cycles,     416383905 commits:    306683 Hz,
920050 insns/sec: rip ffffffff810c043a
.......
.......
user.base_machine.ooo_0_0.thread0.commit.ipc = 0.391764
kernel.base_machine.ooo_0_0.thread0.commit.ipc = 2.99783
total.base_machine.ooo_0_0.thread0.commit.ipc = 2.29421

At some point, rip is changed to ffffffff810c043a and never turns back to
0x000000000xxxxx.
Every benchmark has simliar result.

I simulated soplex, libquantum with test input and they worked well.
What I was missing..
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