Re: [Libvir] [PATCH] Fix xm_internal configCache

This patch: (1) Fixes inactive domains over remote. The real cause of this error turned out to be that after configCache hash is created, the last refresh date wasn't reset, so a subsequent call to xenXMConfigCacheRefresh might not actually repopulate the cache. This only affects the remote case, because only in the remote case do we have a long running process (libvirtd) which closes and reopens xm_internal.c, so this code had never been exercised before. It also explains why the bug was annoyingly intermittent. If you wait >= 10 seconds during testing, then the cache does get refilled, so the bug is hidden. (2) Adds error messages to xenXMConfigCacheRefresh. (3) As Daniel Veillard suggested, change the obscure !nconnections-- condition to two explicit statements. (4) In xenXMOpen, change the condition from nconnections == 0 to configCache == NULL, to remove the implicit dependency between the two variables.