[Gems-users] Segment Fault when calling dump-stats

[Xuan Qi <xqi@xxxxxxxxxxx>]

Hi everyone,

I am a beginner of GEMS/simics. I installed solaris10 on a sarek machine
with 2 cores and 512MB memory. I am trying to make the ruby and opal work 
correctly now. I compiled them with MOESI_CMP_directory protocol. I use 
the 
following script to start the target machine and ruby:
read-configuration 2core.conf
cpu-switch-time 1
instruction-fetch-mode instruction-fetch-trace
istc-disable
dstc-disable
magic-break-enable
load-module ruby
load-module opal
ruby0.setparam g_NUM_PROCESSORS 2
ruby0.setparam g_MEMORY_SIZE_BYTES 524288
ruby0.init

After I run some simple program on the target machine, I call 
ruby0.dump-stats. But, I always get this error message:
Segmentation fault (SIGSEGV) in main thread
The simulation state has been corrupted. Simulation cannot continue.
Please restart Simics.

I am wondering what could be the problem and where I should look at to fix 
this problem. Is it because the inconsistency of ruby cache and simics 
g-cache? BTW, do ruby and opal have to be loaded together? Thanks a lot!
Best regards,
Xuan Qi