Re: [Gems-users] Problem with Simics segmentation fault

[Liz Mooney <mooneye@xxxxxxxxxxxx>]

Sorry..here is the line from rubyconfig.defaults that I changed to get ruby to run in user mode:

USER_MODE_DATA_ONLY: false //I changed this to true

L2_CACHE_NUM_SETS_BITS: 10 //changed this too
g_DATA_BLOCK_BYTES: 256    //and this but these are probably unrelated

We also changed the SLICC interface file MOSI_SMP_directory_1level-cache.sm to add certain functionality. But this should not make a difference because it has been running fine in previous simulations with and without the user mode set.  

Thanks,
Liz

---- Original message ----
>Date: Fri, 04 May 2007 20:47:16 -0500
>From: Dan Gibson <degibson@xxxxxxxx>  
>Subject: Re: [Gems-users] Problem with Simics segmentation fault  
>To: Gems Users <gems-users@xxxxxxxxxxx>
>
>I don't understand what you mean by "change(ing) the user mode". What 
>specific parameters did you change in rubyconfig.defaults?
>
>Also, have you made other changes to the Ruby codebase?
>
>Regards,
>Dan
>
>Liz Mooney wrote:
>
>>Hello,
>>
>>I have been compiling and running Ruby on several different benchmarks just fine until this morning.  I wanted to change the user mode in /ruby/config in the rubyconfig.defaults and when I did this, recompiled Ruby, and tried loading it into Simics I got the following error after I tried typing something (like ls or pushing enter) in the Simics console:
>>
>>simics> c
>>Segmentation fault (SIGSEGV) in main thread
>>The simulation state has been corrupted. Simulation cannot continue.
>>Please restart Simics.
>>
>>This seems strange to me because I have been changing cache size, block size, and user mode in the configuration file in the past and it worked just fine. Nothing has changed since last night when I last ran a simulation. 
>>
>>I am loading Ruby to Simics correctly since I have checked this. Any help would be appreciated. 
>>
>>Thanks,
>>Liz
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>>
>>  
>>
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