iTunes just doesn't respond any more after a while
Latest console logs :
07-06-15 (wk23) 12:44:03,392 com.apple.xpc.launchd[1]: (com.apple.xpc.launchd.domain.pid.BKAgentService.748) Path not allowed in target domain: type = pid, path = /Library/Frameworks/iTunesLibrary.framework/Versions/A/XPCServices/com.apple.iT unesLibraryService.xpc error = 147: The specified service did not ship in the requestor's bundle, origin = /System/Library/PrivateFrameworks/BookKit.framework/Versions/A/XPCServices/com. apple.BKAgentService.xpc
07-06-15 (wk23) 12:44:12,317 com.apple.xpc.launchd[1]: (com.apple.xpc.launchd.domain.pid.MediaLibraryService.789) Path not allowed in target domain: type = pid, path = /Library/Frameworks/iTunesLibrary.framework/Versions/A/XPCServices/com.apple.iT unesLibraryService.xpc error = 147: The specified service did not ship in the requestor's bundle, origin = /System/Library/Frameworks/MediaLibrary.framework/Versions/A/XPCServices/com.ap ple.MediaLibraryService.xpc
07-06-15 (wk23) 12:46:39,237 iTunes[735]: Entered:_AMMuxedDeviceDisconnected, mux-device:3
07-06-15 (wk23) 12:46:39,238 iTunes[735]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:3
07-06-15 (wk23) 12:46:39,238 iTunes[735]: tid:2f7 - Mux ID not found in mapping dictionary
07-06-15 (wk23) 12:46:39,238 iTunes[735]: tid:2f7 - Can't handle disconnect with invalid ecid
07-06-15 (wk23) 12:51:33,009 diskarbitrationd[63]: iTunes [735]:36887 not responding.