Hello all,
I have created a configure file which simulates a two package CMP which
names Intel Clovertown.:
machine:
# Use run-time option '-machine [MACHINE_NAME]' to select
clover_quad_mesi:
description: This configure simulates Clovertown machine which contains
two packages
min_contexts: 4
max_contexts: 4
cores: # The order in which core is defined is used to assign
# the cores in a machine
- type: ooo
name_prefix: ooo_
option:
threads: 1
caches:
- type: l1_128K_mesi
name_prefix: L1_I_
insts: $NUMCORES # Per core L1-I cache
option:
private: true
last_private: true
- type: l1_128K_mesi
name_prefix: L1_D_
insts: $NUMCORES # Per core L1-D cache
option:
private: true
last_private: true
- type: l2_2M_mesi
name_prefix: L2_
insts: 2 # Two packages
memory:
- type: dram_cont
name_prefix: MEM_
insts: 1 # Single DRAM controller
option:
latency: 50 # In nano seconds
interconnects:
- type: p2p
# '$' sign is used to map matching instances like:
# cpu_0, L1_I_0
connections:
- core_$: I
L1_I_$: UPPER
- core_$: D
L1_D_$: UPPER
- type: split_bus
connections:
- L1_I_0: LOWER
L1_I_1: LOWER
L2_0: UPPER
- L1_I_2: LOWER
L1_I_3: LOWER
L2_1: UPPER
- L1_D_0: LOWER
L1_D_1: LOWER
L2_0: UPPER2
- L1_D_2: LOWER
L1_D_3: LOWER
L2_1: UPPER2
- L2_0: LOWER
L2_1: LOWER
MEM_0: UPPER
option:
disable_snoop: true
When simulation is started with the configuration, I encounter with
"Segmentation fault (core dumped)" error:
I find that the error is originated from MESILogic::handle_local_miss(...).
The following code fragment is selected from handle_local_miss(...).
if (type == MEMORY_OP_UPDATE && !controller->is_lowest_private()) {
*queueEntry->line->state =
*(MESICacheLineState*)(queueEntry->m_arg);*
UPDATE_MESI_TRANS_STATS(oldState, queueEntry->line->state,
kernel_req);
controller->clear_entry_cb(queueEntry);
return;
}
Source of the error is "queueEntry->line->state =
*(MESICacheLineState*)(queueEntry->m_arg);" command which is highlighted.
Could you tell me how this error can be solved?
Sorry to bother you, and thanks for your answer in advance.
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