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Message
From: aggemous at hotmail.com<aggemous@h...>
Date: Wed Sep 17 10:02:06 CEST 2008
Subject: [openrisc] Problem running simulator
Hi Jeremy,The answer in all your questions is yes, I have used correct patched
version of or1ksim, correct sim.cfg and disabled ethernet.
But I have not used issue 2 of the application notes, as I had them
downloaded some weeks ago. I will try to fix the problem following issue
2 instructions and I will post again if the problem persists, giving full
sequence of commands used.
Thank you for your kind help.
Aggemous
----- Original Message -----
From: Jeremy Bennett<jeremy.bennett@e...>
To:
Date: Tue Sep 16 10:04:00 CEST 2008
Subject: [openrisc] Problem running simulator
> On Mon, 2008-09-15 at 15:17 +0200, aggemous at hotmail.com
wrote:
>
> > I need help getting architectural simulator run. Using Fedora
> 9, I
> > followed instructions as found in Embecosm's "The
> OpenCores OpenRISC
> > 1000 Simulator and Tool Chain: Installation Guide ".
> > Everything seems OK up to the point I am trying to run the
> simulator.
> > Here follows the output:
> >
> > Copying Linux... Ok, booting the kernel.
> < stuff deleted>
> > NET: Registered protocol family 1
> > NET: Registered protocol family 17
> > NET: Registered protocol family 15
> > EXCEPTION: read out of memory (32-bit access to 4000002c)
> >
> > Runarunaround: Unhandled exception 0x200: EPC=0x4104
> > EXCEPTION: read out of memory (32-bit access to 4000032c)
> >
> > Runarunaround: Unhandled exception 0x200: EPC=0x4104
> > EXCEPTION: read out of memory (32-bit access to 4000032c)
> >
> > Runarunaround: Unhandled exception 0x200: EPC=0x4104
> > EXCEPTION: read out of memory (32-bit access to 4000032c)
> >
> > Runarunaround: Unhandled exception 0x200: EPC=0x4104
> > EXCEPTION: read out of memory (32-bit access to 4000032c)
> >
> > Runarunaround: Unhandled exception 0x200: EPC=0x4104
> > EXCEPTION: read out of memory (32-bit access to 4000032c)
> >
> > The exception message keeps on repeating.
> >
> > What am I doing wrong? Has someone seen the same error before?
> Hi Aggemous,
> The simulator is complaining about a read to a location (0x4000002c
> initially) where it has no memory.
> Three questions:
> 1. Are you using the correct version of Or1ksim (0.2.0, NOT
> 0.2.0rc1,
> 0.2.0rc2 or 0.2.0rc3) and have you patched this as in the Embecosm
> application note?
> 2. Have you disabled the Ethernet before building Linux as
> described in
> the application note? This is known not to work with Or1ksim 0.2.0.
> 3. Are you using the correct simulator configuration file. You must
> use
> the sim.cfg in the Linux root directory, NOT the one in the Or1ksim
> root
> directory.
> I suspect the last of these, since it seems Linux is trying to use
> its
> virtual addresses as physical addresses, as though the
> configuration had
> the MMUs disabled.
> If this doesn't work, could you post the exact sequence of commands
> you
> used to download, patch, configure and build the tool chain,
> library,
> Linux and Or1ksim. I run on Fedora 9, so I'm confident we can get
> your
> system working.
> I updated the instructions for building the tool chain, Linux and
> simulator earlier this month (they are a bit simpler now). Make
> sure you
> are using issue 2 of the application note.
> http://www.embecosm.com/download/ean2.html
> HTH,
> Jeremy
> --
> Tel: +44 (1202) 416955
> Cell: +44 (7970) 676050
> SkypeID: jeremybennett
> Email: jeremy.bennett at embecosm.com
> Web: www.embecosm.com
>
>
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