We never deallocate the pipe used to do the wake-up trick, loosing 2 descriptor per connection opened in a process,

Index: src/remote_internal.c =================================================================== RCS file: /data/cvs/libxen/src/remote_internal.c,v retrieving revision 1.141 diff -u -u -p -r1.141 remote_internal.c --- src/remote_internal.c 3 Mar 2009 19:33:34 -0000 1.141 +++ src/remote_internal.c 16 Mar 2009 16:57:17 -0000 @@ -332,7 +332,7 @@ doRemoteOpen (virConnectPtr conn, virConnectAuthPtr auth ATTRIBUTE_UNUSED, int flags) { - int wakeupFD[2]; + int wakeupFD[2] = { -1, -1 }; char *transport_str = NULL; if (conn->uri) { @@ -885,6 +885,11 @@ doRemoteOpen (virConnectPtr conn, #endif } + if (wakeupFD[0] >= 0) { + close(wakeupFD[0]); + close(wakeupFD[1]); + } + VIR_FREE(priv->hostname); goto cleanup; } @@ -1350,6 +1355,11 @@ doRemoteClose (virConnectPtr conn, struc } while (reap != -1 && reap != priv->pid); } #endif + if (priv->wakeupReadFD >= 0) { + close(priv->wakeupReadFD); + close(priv->wakeupSendFD); + } + /* Free hostname copy */ free (priv->hostname);