From: Keir Fraser <keir@xen.org>
To: Olaf Hering <olaf@aepfle.de>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: Re: Re: non-contiguous allocations
Date: Sat, 07 May 2011 17:31:23 +0100 [thread overview]
Message-ID: <C9EB326B.2D124%keir@xen.org> (raw)
In-Reply-To: <20110507083919.GA28246@aepfle.de>
On 07/05/2011 09:39, "Olaf Hering" <olaf@aepfle.de> wrote:
> On Fri, May 06, Keir Fraser wrote:
>
>> On 06/05/2011 19:12, "Olaf Hering" <olaf@aepfle.de> wrote:
>
>>> Is there a way to allocate more than 128mb with repeated calls to
>>> alloc_xenheap_page()?
>>
>> Yes it should just work. Are you sure you actually have more than 128MB
>> available (not all allocated to dom0 for example)?
>
> Thanks Keir. xm mem-set 0 1024 did the trick.
> I was under the impression dom0 would automatically get ballooned down
> to make room for the allocation requests.
Only when creating new domains in xend, then xend will balloon down dom0. So
no, not in this case: we can hardly go run xend while we're in hypervisor
context. ;-)
This kind of thing is why we normally run dom0 with 'just enough' memory and
don't use auto ballooning.
-- Keir
> Olaf
next prev parent reply other threads:[~2011-05-07 16:31 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-30 18:04 [PATCH 0 of 3] xentrace updates Olaf Hering
2011-03-30 18:04 ` [PATCH 1 of 3] xentrace: correct formula to calculate t_info_pages Olaf Hering
2011-04-01 10:32 ` George Dunlap
2011-03-30 18:04 ` [PATCH 2 of 3] xentrace: use tbuf_size for overflow check Olaf Hering
2011-04-01 11:18 ` George Dunlap
2011-04-05 10:19 ` Olaf Hering
2011-04-07 13:50 ` Olaf Hering
2011-04-18 18:45 ` non-contiguous allocations Olaf Hering
2011-04-26 11:51 ` Jan Beulich
2011-05-06 10:25 ` Olaf Hering
2011-05-06 10:45 ` Jan Beulich
2011-05-06 18:12 ` Olaf Hering
2011-05-06 18:46 ` Keir Fraser
2011-05-07 8:39 ` Olaf Hering
2011-05-07 16:31 ` Keir Fraser [this message]
2011-05-09 8:30 ` Jan Beulich
2011-05-09 8:34 ` Keir Fraser
2011-05-09 12:43 ` Olaf Hering
2011-05-09 14:14 ` Keir Fraser
2011-03-30 18:04 ` [PATCH 3 of 3] xentrace: remove unneeded debug printk Olaf Hering
2011-04-01 11:18 ` George Dunlap
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