From: "Jan Beulich" <jbeulich@novell.com>
To: Susan Krysan <KRYSANS@unisys.com>, Keir Fraser <keir@xensource.com>
Cc: xen-devel@lists.xensource.com
Subject: Re: xen does not see more than 173800500k of memory
Date: Thu, 23 Aug 2007 15:51:36 +0100 [thread overview]
Message-ID: <46CDBB18.76E4.0078.0@novell.com> (raw)
In-Reply-To: <C2F357D2.14826%keir@xensource.com>
>>> Keir Fraser <keir@xensource.com> 23.08.07 16:27 >>>
>This should be easily fixed by properly applying
>domain_clamp_alloc_bitsize() in __alloc_domheap_pages(). Why is it only
>applied when the bitsize is explicitly specified by the caller?
>
>I think that's the only thing to fix to allow the 166GB boot-time
>restriction to be lifted, but am I missing something, Jan?
We had this discussion before - the problem is not restricting the allocations
a domain does, but pages getting passed to it from other domains, which (if
they happen to lie outside the 166Gb range) the domain then can't control.
And yes, you said page flipping is basically dead, but this isn't being
enforced (and probably can't as long as you want to support older guests
potentially using it).
Jan
next prev parent reply other threads:[~2007-08-23 14:51 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-22 22:33 xen does not see more than 173800500k of memory Krysan, Susan
2007-08-22 22:38 ` Keir Fraser
2007-08-23 7:34 ` Jan Beulich
2007-08-23 14:27 ` Keir Fraser
2007-08-23 14:51 ` Jan Beulich [this message]
2007-08-23 15:53 ` Keir Fraser
-- strict thread matches above, loose matches on Subject: below --
2007-09-05 16:45 Subrahmanian, Raj
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