WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/

Home

xen-ia64-devel

[Top] [All Lists]

Re: [Xen-devel] [PATCH 1/2] balloon driver: relax BUG_ON() in increasee_

from [Isaku Yamahata]

[Permanent Link][Original]

To:	Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Subject:	Re: [Xen-devel] [PATCH 1/2] balloon driver: relax BUG_ON() in increasee_reservation()
From:	Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
Date:	Fri, 28 Apr 2006 16:23:32 +0900
Cc:	xen-devel@xxxxxxxxxxxxxxxxxxx, xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date:	Fri, 28 Apr 2006 00:23:50 -0700
Envelope-to:	www-data@xxxxxxxxxxxxxxxxxx
In-reply-to:	<9a6ef76c6b1cedc2327ac6255a5c2661@xxxxxxxxxxxx>
List-help:	<mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id:	Xen developer discussion <xen-devel.lists.xensource.com>
List-post:	<mailto:xen-devel@lists.xensource.com>
List-subscribe:	<http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe:	<http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References:	<20060428063238.GA23653%yamahata@xxxxxxxxxxxxx> <9a6ef76c6b1cedc2327ac6255a5c2661@xxxxxxxxxxxx>
Sender:	xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent:	Mutt/1.4.2.1i

On Fri, Apr 28, 2006 at 07:59:04AM +0100, Keir Fraser wrote:

> x86 phys_to_machine_ampping_valid() includes a check of the  
> autotranslate feature flag. It always returns 1 if that flag is set.

Yes. So when autotranslate feature flag is set,
BUG_ON(phys_to_machine_mapping_valid(pfn)) becomes BUG_ON(1)
which results in kernel panic.
This means that the balloon driver can't be used with autotranslate
feature flag set.
Is this really your intention?

-- 
yamahata

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

[More with this subject...]

<Prev in Thread]	Current Thread	[Next in Thread>
[Xen-devel] [PATCH 1/2] balloon driver: relax BUG_ON() in increasee_reservation(), Isaku Yamahata Re: [Xen-devel] [PATCH 1/2] balloon driver: relax BUG_ON() in increasee_reservation(), Keir Fraser Re: [Xen-devel] [PATCH 1/2] balloon driver: relax BUG_ON() in increasee_reservation(), Isaku Yamahata <= Re: [Xen-devel] [PATCH 1/2] balloon driver: relax BUG_ON() in increasee_reservation(), Keir Fraser

Previous by Date:	Re: [Xen-devel] [PATCH 2/2] balloon driver: don't use apply_to_page_range for xenLinux/ia64, Keir Fraser
Next by Date:	Re: [Xen-devel] [PATCH 1/2] balloon driver: relax BUG_ON() in increasee_reservation(), Keir Fraser
Previous by Thread:	Re: [Xen-devel] [PATCH 1/2] balloon driver: relax BUG_ON() in increasee_reservation(), Keir Fraser
Next by Thread:	Re: [Xen-devel] [PATCH 1/2] balloon driver: relax BUG_ON() in increasee_reservation(), Keir Fraser
Indexes:	[Date] [Thread] [Top] [All Lists]

This site is hosted by Citrix