From: Jim Fehlig <jfehlig@suse.com>
Date: Thu, 1 Sep 2011 22:40:46 +0000 (-0600)
Subject: Increase size of buffer for xend response
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=57c95175e271ca63b3f1be44efef8997f20ffe13;p=libvirt.git

Increase size of buffer for xend response

On systems with many pcpus, the sexpr returned by xend can be quite
large for dom0 when it is configured to have #vcpus = #pcpus (default).
E.g. on a 80 pcpu system, where dom0 had 80 vcpus, the sexpr details
for dom0 was 73817 bytes!  Increase maximum buffer size to 256k.
---

diff --git a/src/xen/xend_internal.c b/src/xen/xend_internal.c
index 957cd17e9e..0a7fb4806e 100644
--- a/src/xen/xend_internal.c
+++ b/src/xen/xend_internal.c
@@ -56,7 +56,7 @@
  * The number of Xen scheduler parameters
  */
 
-#define XEND_RCV_BUF_MAX_LEN 65536
+#define XEND_RCV_BUF_MAX_LEN (256 * 1024)
 
 static int
 virDomainXMLDevID(virDomainPtr domain,