[libvirt] PATCH 0/5: connection cloning support (WIP)

David Lively dlively at virtualiron.com
Wed Dec 17 16:21:34 UTC 2008


On Wed, 2008-12-17 at 13:58 +0000, Daniel P. Berrange wrote:
> On Wed, Dec 17, 2008 at 07:44:15AM -0500, David Lively wrote:
> > Hi Daniel -
> >   When I apply these patches, I'm seeing segfaults on event delivery
> > when just running the existing synchronous
> > examples/domain-events/events-c/event-test.c (using the remote driver).
> 
> I've not come across that specific problem, but there are a definitely
> some locking bugs & refcounting bugs inthe patches I've posted so far.
> I'll post an updated series of patches which may address this.
> 
> Daniel

It turned out to be a double-free.  Trivial fix below.

Dave

diff --git a/src/remote_internal.c b/src/remote_internal.c
index 9245a2a..d6b94ff 100644
--- a/src/remote_internal.c
+++ b/src/remote_internal.c
@@ -6423,10 +6423,10 @@ remoteDomainQueueEvent(virConnectPtr conn, XDR
*xdr)
         return;
 
     if (virDomainEventQueuePush(priv->domainEvents,
-                                event) < 0)
+                                event) < 0) {
         DEBUG0("Error adding event to queue");
-
-    virDomainEventFree(event);
+        virDomainEventFree(event);
+    }
 }
 
 /** remoteDomainEventFired:






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