[Gems-users] Warm-up caches problem

[Edward Lee <edwl202@xxxxxxxxx>]

Hi,

I am a newbie to GEMS and I am trying to run some benchmarks using SIMICS+RUBY. I followed the guidelines in the ISCA tutorial slides and I also checked the earlier posts. 
Here is what I am doing:

Step1:
Only SIMICS
./simics -stall
configure simics (itsc/dstc-disable ... etc.)
Run FFT with small input
write-configuration cold.conf
exit simics

Step2:
SIMICS+RUBY
./simics -stall
read-configuration cold.conf
configure simics
setup ruby
Run FFT with small input
ruby0.save-caches fft.caches_8p.gz
write-configuration warm.conf
exit simics

Step3:
./simics -stall
Edit warm.conf to delete ruby object and ruby timing model memory space object, save the file
read-configuration warm.conf

And at this stage I am getting the following error:

Segmentation fault (SIGSEGV) in main thread
The simulation state has been corrupted. Simulation cannot continue.
Please restart Simics.

Any ideas on what I am doing wrong?

Regards,

Ed