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Subject: RE: swarm CFE access
Date: Thu, 11 Oct 2007 15:17:30 -0800
Message-ID: <BB375AF679D4A34E9CA8DFA650E2B04E05FEA34C@onstor-exch02.onstor.net>
In-Reply-To: <20071011145029.162def52@ripper.onstor.net>
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Thread-Topic: swarm CFE access
Thread-Index: AcgMUL2HAx/8B1bnQNiq7xmeweAUGgAC7bPg
References: <20071011111053.2c3d913c@ripper.onstor.net><BB375AF679D4A34E9CA8DFA650E2B04E05FEA261@onstor-exch02.onstor.net> <20071011145029.162def52@ripper.onstor.net>
From: "Brian Stark" <brian.stark@onstor.com>
To: "Andy Sharp" <andy.sharp@onstor.com>,
	"Rick Lund" <rick.lund@onstor.com>

Andy,

We're still pretty confused on what the cksseg region is supposed to do.
Since it's a mapped space, we've set up TLB entries to point to a
physical address starting at 0xc000.0000.  When we access the virtual
address, the processor crashes with a DBE, meaning that nothing was at a
physical address of 0xc000.0000 (which there isn't).

So, a couple of questions:

- What physical space is cksseg supposed to map to?
- Can you tell from the kernel what virtual address is being used to
access cksseg?


Brian
=20

> -----Original Message-----
> From: Andy Sharp=20
> Sent: Thursday, October 11, 2007 2:50 PM
> To: Rick Lund
> Cc: Brian Stark
> Subject: Re: swarm CFE access
>=20
> Hi Rick,
>=20
> I forgot to mention that I also added brians to the acl for=20
> this session so you can use his login as well as your own,=20
> assuming as I did that they even gave you one.
>=20
> Let me know if you still have problems.
>=20
> Cheers,
>=20
> a
>=20
> On Thu, 11 Oct 2007 14:34:19 -0700 "Rick Lund" <rick.lund@onstor.com>
> wrote:
>=20
> > brians@ripper:/$ screen -r andys/ub.console Access to=20
> session denied.
> >=20
> > -----Original Message-----
> > From: Andy Sharp
> > Sent: Thursday, October 11, 2007 11:11 AM
> > To: Brian Stark
> > Cc: Rick Lund
> > Subject: swarm CFE access
> >=20
> > Well, this hopefully works.  If it does, it will be very simple.
> >=20
> > Log into ripper:
> >=20
> > $ slogin ripper
> >=20
> > then, issue this command:
> >=20
> > ripper$ screen -r andys/ub.console
> >=20
> > if you get an error from that command, let me know, otherwise, you=20
> > should now be talking to the CFE.  you should see the prompt.
> >=20
> > inadequate DNS settings on your computer may require you to say=20
> > something like 'ripper.onstor.net' or such...
> >=20
> > Let me know how it goes.
> >=20
> > I'm getting a lot of interest from the community about this=20
> CF paging=20
> > issue.  Of course, it's a different issue, but I thought I=20
> would let=20
> > you know they are thinking about us.
> >=20
> > Cheers,
> >=20
> > a
>=20
