Re: [Gems-users] failed Simics session upon Ruby init

[Adam Kaplan <kaplan@xxxxxxxxxxx>]

I fixed the issue! This is the same abisko phys_mem/phys_mem0 problem
that's come up before:
https://lists.cs.wisc.edu/archive/gems-users/2006/msg00065.shtml

The only difference is that ruby.c is not the only place this must be
fixed.  (I had taken care of that one already.) There are two more
instances within $GEMS/ruby/simics/interface.C which needed fixing before
Opal and Ruby could talk.

Thanks again,
			Adam

On Wed, 13 Sep 2006, Adam Kaplan wrote:

> Hi Dan,
>
> Thanks so much for your time.  I verified both of the things you mentioned
> (that I had setup the Gems/Simics-3 as per the instructions on the wiki,
> and that my checkpoint was single-processor).  I also tried a couple of
> other things, and noticed the following:
> a) independent of cache-coherence protocol (I tried both the default
>    MOSI_SMP_bcast and also MOESI_CMP_directory), I *can* get Ruby to
>    load, initialize, and dump proper statistics as long as I do not load
>    Opal at any point
> b) if I load Opal, Ruby dies on init
>
> Do you know any good method I could use to attach a debugger to the
> proceedings and try and give more precise info? Is it as simple as
> building Opal/Ruby with debug info and gdb'ing Simics?
>
> Thanks again,
> 		Adam
>
> > Before I fly off the hinge and assume the worst (like I did with the
> > last gems-users segfault), can you verify the following for me?
>
> > 1) your checkpoint has only one processor (I've done it before)
>
> > 2) you modified the files in the Gems 1.3 release appropriately for
> > Simics 3.0. These should include:
>
> > $GEMS/common/Makefile.simics_version -- set the version string to 3.0
>
> > $GEMS/common/Makefile.common -- set the CC for your chosen compiler,
> > update the path for SIMICS_INCLUDE_ROOT to point to your Simics 3.0
> > installation's include/ directory. $GEMS/ruby/module/Makefile -- set the
> > runtime library path (not necessary if using native compiler), and use
> > the Simics-3.0-appropriate definition of GEMS_ROOT.
> > $GEMS/opal/module/Makefile
> > -- Use the Simics-3.0-appropriate definition of GEMS_ROOT.
>
> > Regards,
> > Dan
>