Re: [Gems-users] SIMICS getting shaky


Date: Fri, 17 Mar 2006 13:59:47 -0500
From: Liping Xue <lxue@xxxxxxxxxxx>
Subject: Re: [Gems-users] SIMICS getting shaky
Hi, Arrvindh and Dan,
  I also meet this problem if I type the wrong  configuration of ruby.
I remember when I try to type "ruby0.setparam g_MEMORY_SIZE_BYTES 4294967296", I made a typo, "ruby0.setparam g_MEMRY_SIZE_BYTES 4294967296", it would show me the same error message as yours.

-- Liping

Message: 7
Date: Thu, 16 Mar 2006 09:59:11 -0800 (PST)
From: arrvindh shriraman <arrvindh_shriraman@xxxxxxxxx>
Subject: [Gems-users] SIMICS getting shaky
To: gems-users@xxxxxxxxxxx
Message-ID: <20060316175911.76503.qmail@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"

I have been facing a weird problem which has cropped up suddenly.
Till yesterday ruby was working perfectly. But suddenly when i load ruby and try to work it gives the following error
This appears for even the base MOSI_SMP_bcast protocol
***  Simics getting shaky, switching to 'safe' mode.
Simics (main thread) received a segmentation fault. Will try to recuperate.


		
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Message: 8
Date: Thu, 16 Mar 2006 14:53:17 -0600
From: Dan Gibson <degibson@xxxxxxxx>
Subject: Re: [Gems-users] SIMICS getting shaky
To: Gems Users <gems-users@xxxxxxxxxxx>
Message-ID: <4419D03D.6080602@xxxxxxxx>
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Arrvindh,

The error you are seeing when running under simics is consistent with a segmentation fault. Ruby will segfault if it is loaded before doing a read-configuration--the first thing that Ruby does at load-time is look for a "phys_mem0", but it doesn't check to see if the pointer to that object is NULL. As soon as it tries to use that pointer, of course, a segmentation fault results.
Can you send the list of commands you are using to run simulation?

Regards,
Dan

arrvindh shriraman wrote:
I have been facing a weird problem which has cropped up suddenly.
Till yesterday ruby was working perfectly. But suddenly when i load ruby and try to work it gives the following error
This appears for even the base MOSI_SMP_bcast protocol

***  Simics getting shaky, switching to 'safe' mode.
Simics (main thread) received a segmentation fault. Will try to recuperate.

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