[Xen-devel] [PATCH] libxc: reset completed flag in restore_ctx

[Jim Fehlig <jfehlig@xxxxxxxxxx>]

# HG changeset patch
# User Jim Fehlig <jfehlig@xxxxxxxxxx>
# Date 1306191873 21600
# Node ID f94242f20cdaee81d28f68df38d5a98f8fd9947d
# Parent  fb517cc27adef3a7ad548e7397e02e1414132ead
libxc: reset completed flag in restore_ctx

Long running libxl/libxc apps such as libvirt segfault when
attempting multiple restores.  The completed flag in restore_ctx
structure is set at completion of first restore.  Subsequent
restores do not load any pages and result in the segfault.

Reset completed flag at start of restore.

    Signed-off-by: Jim Fehlig <jfehlig@xxxxxxxxxx>

diff -r fb517cc27ade -r f94242f20cda tools/libxc/xc_domain_restore.c
--- a/tools/libxc/xc_domain_restore.c   Fri May 20 18:20:09 2011 +0100
+++ b/tools/libxc/xc_domain_restore.c   Mon May 23 17:04:33 2011 -0600
@@ -1146,6 +1146,7 @@ int xc_domain_restore(xc_interface *xch,
 
     /* For info only */
     ctx->nr_pfns = 0;
+    ctx->completed = 0;
 
     if ( superpages )
         return 1;

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