Backup一下:

setprop log.tag.Sync VERBOSE
setprop log.tag.GTalkService VERBOSE
setprop log.tag.GDataClient VERBOSE
setprop log.tag.Smack VERBOSE
setprop log.tag.GoogleLoginService VERBOSE
setprop log.tag.Smack/Packet VERBOSE
setprop log.tag.ProtoBuf VERBOSE
setprop log.tag.C2DMRegistrar VERBOSE
setprop log.tag.TalkProvider VERBOSE
setprop log.tag.SubscribedFeeds VERBOSE
setprop log.tag.GoogleMail VERBOSE