Hello,

When I try to run mcf application with 4096MB as mem-size, I am getting the
following error :




*mmap: Invalid argumentfatal: Could not mmap 4294967296 bytes for range [0
: 0xffffffff]! @ cycle 0[createBackingStore:build/ALPHA/mem/physical.cc,
line 158]Memory Usage: 37068 KBytes*

The command used to run the simulation is :
./build/ALPHA/gem5.fast  ./configs/example/se.py -n 1   --caches --l2cache
--cpu-type=detailed --bench mcf --maxinsts 500000000 --fast-forward
5000000000 --warmup-insts 250000000 --mem-type=DDR3_1600_x64
--mem-channels=1 *--mem-size=4096MB* --sys-clock=2.4GHz


free -m gives this result on my system :
                                  total         used       *free*
shared    buffers     cached
Mem:                         16157       2960      *13196*
0        109        988
-/+ buffers/cache:        1863       14294
Swap:                         9535          0          9535

If I have around 13GB of free memory in my system, why is mmap failing?
How can I resolve this issue?
Any help would be appreciated a lot.

-- 
Thanks & Regards,
Anju
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