Hi Anju,
What was the outcome on this one? Any luck?
Thanks,
Andreas
From: Andreas Hansson <[email protected]<mailto:[email protected]>>
Reply-To: gem5 users mailing list
<[email protected]<mailto:[email protected]>>
Date: Monday, 10 March 2014 14:08
To: gem5 users mailing list <[email protected]<mailto:[email protected]>>
Subject: Re: [gem5-users] mmap error when I increase mem-size
Hi Anju,
Have a look at:
http://stackoverflow.com/questions/4803152/mmap-fails-when-length-is-larger-than-4gb
I suspect that it is your swap allocation that is running out. Could you try
adding MAP_NORESERVE to the mmap flags in physical.cc?
Note that this is not POSIX, and we’d have to make this OS dependent if we want
to make it the default behaviour.
Andreas
From: Anju M A <[email protected]<mailto:[email protected]>>
Reply-To: gem5 users mailing list
<[email protected]<mailto:[email protected]>>
Date: Monday, 10 March 2014 13:55
To: gem5 users mailing list <[email protected]<mailto:[email protected]>>
Subject: [gem5-users] mmap error when I increase mem-size
Hello,
When I try to run mcf application with 4096MB as mem-size, I am getting the
following error :
mmap: Invalid argument
fatal: 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
-- IMPORTANT NOTICE: The contents of this email and any attachments are
confidential and may also be privileged. If you are not the intended recipient,
please notify the sender immediately and do not disclose the contents to any
other person, use it for any purpose, or store or copy the information in any
medium. Thank you.
ARM Limited, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered
in England & Wales, Company No: 2557590
ARM Holdings plc, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ,
Registered in England & Wales, Company No: 2548782
-- IMPORTANT NOTICE: The contents of this email and any attachments are
confidential and may also be privileged. If you are not the intended recipient,
please notify the sender immediately and do not disclose the contents to any
other person, use it for any purpose, or store or copy the information in any
medium. Thank you.
ARM Limited, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered
in England & Wales, Company No: 2557590
ARM Holdings plc, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ,
Registered in England & Wales, Company No: 2548782_______________________________________________
gem5-users mailing list
[email protected]
http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
