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Re: [Xen-devel] Re: Failure booting domU with < 24M
| To: | Jacob Gorm Hansen <jacobg@xxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] Re: Failure booting domU with < 24M |
| From: | Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
| Date: | Fri, 04 Nov 2005 10:48:11 +0000 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Fri, 04 Nov 2005 10:50:20 +0000 |
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| In-reply-to: | Your message of "Thu, 03 Nov 2005 16:03:59 +0100." <e08041f30511030703s3b8f44b6s1c0c4410f7340913@xxxxxxxxxxxxxx> |
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> The problem seems to be the 8M(!) slack introduced with this patch. > > # HG changeset patch > # User kaf24@xxxxxxxxxxxxxxxxxxxx > # Node ID 41489189b19e20b3fda4222e1787821d990206bc > # Parent c08e7f0b1ee597381d8c0dcca8a1b915b31bbc96 > Add slack to balloon driver to allow to counteract low-mem > address space allocations in backend drivers. > Signed-off-by: Keir Fraser <keir@xxxxxxxxxxxxx> > > Could the 8M slack be made optional somehow? I like being able to have > 16M domains... With changeset 7616:6a2d93c2b32d332366cc5e8d11e85c476afa8f9b (which I just checked in) if you specify 'mem=' as a Linux boot parameter then the 8M slack in the mem_map and p2m table is disabled. So, you should be able to boot a 16M domain with no slack by adding 'mem=16M' to its command line. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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