From: David Gibson <david@gibson.dropbear.id.au>
To: "David S. Miller" <davem@davemloft.net>
Cc: linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: IA64 non-contiguous memory space bugs
Date: Wed, 22 Feb 2006 02:17:14 +0000 [thread overview]
Message-ID: <20060222021714.GD23574@localhost.localdomain> (raw)
In-Reply-To: <20060221.163935.32626284.davem@davemloft.net>
On Tue, Feb 21, 2006 at 04:39:35PM -0800, David S. Miller wrote:
> From: David Gibson <david@gibson.dropbear.id.au>
> Date: Wed, 22 Feb 2006 11:13:59 +1100
>
> > Quite some time ago, I found (by inspection) an ia64 specific bug
> > related to its non-contiguous user address space. I've never done
> > anything about it, because I don't have an ia64 to test on - but
> > somebody should fix it. Recently I've spotted another possible bug,
> > also by inspection - I don't know enough about ia64 to tell if it's a
> > real problem or not.
>
> Good catch David, I'll need to add similar checks on sparc64 as
> we have a 64-bit virtual address space hole on several processors
> there.
Ok, that patch adds all the checks in generic code anyway, so all you
should need for sparc64 is an appropriate REGION_MAX() macro.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
WARNING: multiple messages have this Message-ID (diff)
From: David Gibson <david@gibson.dropbear.id.au>
To: "David S. Miller" <davem@davemloft.net>
Cc: linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: IA64 non-contiguous memory space bugs
Date: Wed, 22 Feb 2006 13:17:14 +1100 [thread overview]
Message-ID: <20060222021714.GD23574@localhost.localdomain> (raw)
In-Reply-To: <20060221.163935.32626284.davem@davemloft.net>
On Tue, Feb 21, 2006 at 04:39:35PM -0800, David S. Miller wrote:
> From: David Gibson <david@gibson.dropbear.id.au>
> Date: Wed, 22 Feb 2006 11:13:59 +1100
>
> > Quite some time ago, I found (by inspection) an ia64 specific bug
> > related to its non-contiguous user address space. I've never done
> > anything about it, because I don't have an ia64 to test on - but
> > somebody should fix it. Recently I've spotted another possible bug,
> > also by inspection - I don't know enough about ia64 to tell if it's a
> > real problem or not.
>
> Good catch David, I'll need to add similar checks on sparc64 as
> we have a 64-bit virtual address space hole on several processors
> there.
Ok, that patch adds all the checks in generic code anyway, so all you
should need for sparc64 is an appropriate REGION_MAX() macro.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
next prev parent reply other threads:[~2006-02-22 2:17 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-22 0:13 IA64 non-contiguous memory space bugs David Gibson
2006-02-22 0:13 ` David Gibson
2006-02-22 0:39 ` David S. Miller
2006-02-22 0:39 ` David S. Miller
2006-02-22 2:17 ` David Gibson [this message]
2006-02-22 2:17 ` David Gibson
2006-02-22 1:31 ` Chen, Kenneth W
2006-02-22 1:31 ` Chen, Kenneth W
2006-02-22 2:15 ` 'David Gibson'
2006-02-22 2:15 ` 'David Gibson'
2006-02-22 1:51 ` Chen, Kenneth W
2006-02-22 1:51 ` Chen, Kenneth W
2006-02-22 2:25 ` 'David Gibson'
2006-02-22 2:25 ` 'David Gibson'
2006-02-22 16:35 ` Hugh Dickins
2006-02-22 16:35 ` Hugh Dickins
2006-02-22 23:49 ` 'David Gibson'
2006-02-22 23:49 ` 'David Gibson'
2006-02-23 20:13 ` Hugh Dickins
2006-02-23 20:13 ` Hugh Dickins
2006-02-24 0:11 ` 'David Gibson'
2006-02-24 0:11 ` 'David Gibson'
2006-02-22 2:45 ` Chen, Kenneth W
2006-02-22 2:45 ` Chen, Kenneth W
2006-02-22 2:53 ` Chen, Kenneth W
2006-02-22 2:53 ` Chen, Kenneth W
2006-02-22 3:55 ` David Mosberger-Tang
2006-02-22 3:55 ` David Mosberger-Tang
2006-02-22 4:02 ` David Gibson
2006-02-22 4:02 ` David Gibson
2006-02-22 3:01 ` Zhang, Yanmin
2006-02-22 3:01 ` Zhang, Yanmin
2006-02-22 16:19 ` Chen, Kenneth W
2006-02-22 16:19 ` Chen, Kenneth W
2006-02-22 23:26 ` 'David Gibson'
2006-02-22 23:26 ` 'David Gibson'
2006-02-24 1:14 ` Chen, Kenneth W
2006-02-24 1:14 ` Chen, Kenneth W
2006-02-24 2:46 ` 'David Gibson'
2006-02-24 2:46 ` 'David Gibson'
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