On Mon, Jun 16, 2014 at 05:57:41PM +0200, Michal Privoznik wrote:
On 28.05.2014 14:42, Shivaprasad G Bhat wrote:
>During guest migration, if the domain xml is bigger than 16384 which is
>easily possible for a guest with good number of disks, message encode fails
>for xdr_remote_domain_migrate_perform3_ret().
>So, Increase the COOKIE_MAX to STRING_MAX value.
>
>Signed-off-by: Shivaprasad G Bhat <shivaprasadbhat(a)gmail.com>
>---
> src/remote/remote_protocol.x | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/src/remote/remote_protocol.x b/src/remote/remote_protocol.x
>index 1f9d583..ab9b83d 100644
>--- a/src/remote/remote_protocol.x
>+++ b/src/remote/remote_protocol.x
>@@ -86,7 +86,7 @@ const REMOTE_VCPUINFO_MAX = 16384;
> const REMOTE_CPUMAPS_MAX = 8388608;
>
> /* Upper limit on migrate cookie. */
>-const REMOTE_MIGRATE_COOKIE_MAX = 16384;
>+const REMOTE_MIGRATE_COOKIE_MAX = 4194304;
>
> /* Upper limit on lists of networks. */
> const REMOTE_NETWORK_LIST_MAX = 16384;
>
>--
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>
I think this change is okay. I mean we have changed such size limits in the
past and so far we haven't heard of any problems. And really, if you're
doing old -> old migration, then it's the source that fails. If you're doing
old -> new, then again, it's the source that fails. But doing new -> new is
just fine. Then, one trouble might be new -> old but since we are checking
the string limits, we're okay too.
ACK, but I'll wait a while with pushing and let others share their opinion
ACK
Regards,
Daniel
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