I think it all started around 10.8 I thought my iMac had some unique issue. Incredible amounts of disk chatter. GUI/UI responses taking sometimes 20 seconds, or up to a minute. But I've seen a fair amount of discussion about this on the boards, so I know it's not specific to my machine.
I see a lot of this: "UI updates were forcibly disabled by application": 12/24/12 9:34:46.649 PM WindowServer[94]: disable_update_likely_unbalanced: UI updates still disabled by application "iPhoto" after 15.00 seconds (server forcibly re-enabled them after 1.00 seconds). Likely an unbalanced disableUpdate call. 12/24/12 9:34:49.339 PM WindowServer[94]: reenable_update_for_connection: UI updates were finally reenabled by application "iPhoto" after 17.69 seconds (server forcibly re-enabled them after 1.00 seconds) sandboxing: 12/24/12 6:13:46.000 PM kernel[0]: Sandbox: sandboxd(44647) deny mach-lookup com.apple.coresymbolicationd 12/24/12 6:21:48.000 PM kernel[0]: Sandbox: sandboxd(44681) deny mach-lookup com.apple.coresymbolicationd 12/24/12 6:21:50.355 PM sandboxd[44681]: ([44679]) mdworker(44679) deny mach-lookup com.apple.ls.boxd 12/24/12 6:21:50.359 PM sandboxd[44681]: ([44680]) mdworker(44680) deny mach-lookup com.apple.ls.boxd 12/24/12 6:24:00.000 PM kernel[0]: Sandbox: sandboxd(44696) deny mach-lookup com.apple.coresymbolicationd 12/24/12 6:24:01.419 PM sandboxd[44696]: ([44695]) mdworker(44695) deny mach-lookup com.apple.ls.boxd 12/24/12 6:24:01.423 PM sandboxd[44696]: ([44694]) mdworker(44694) deny mach-lookup com.apple.ls.boxd 12/24/12 6:28:13.000 PM kernel[0]: Sandbox: sandboxd(44715) deny mach-lookup com.apple.coresymbolicationd 12/24/12 6:28:13.996 PM sandboxd[44715]: ([44714]) mdworker(44714) deny mach-lookup com.apple.ls.boxd 12/24/12 6:28:14.000 PM sandboxd[44715]: ([44713]) mdworker(44713) deny mach-lookup com.apple.ls.boxd 12/24/12 6:30:16.877 PM sandboxd[44728]: ([44727]) mdworker(44727) deny mach-lookup com.apple.ls.boxd 12/24/12 6:30:16.000 PM kernel[0]: Sandbox: sandboxd(44728) deny mach-lookup com.apple.coresymbolicationd 12/24/12 6:30:16.881 PM sandboxd[44728]: ([44726]) mdworker(44726) deny mach-lookup com.apple.ls.boxd 12/24/12 6:34:19.000 PM kernel[0]: Sandbox: sandboxd(44745) deny mach-lookup com.apple.coresymbolicationd I'm wondering what might be the cause of "UI updates forcibly disabled by application" from so many apps - including Mail, iPhoto, Safari and others. I'm running an iMac 27 Quad Core i7 with 8 GB of RAM. What's going on with "deny mach-lookup" ? I see a lot of that as well. Spotlight indexing essentially brings my iMac to an unusable state. I don't recall any of these issues in Lion or Snow Leopard. Are the above issues indicative of a RAM problem? something else? sandboxing in general? Mountain Lion? Incredibly frustrated, -Kevin - Kevin http://www.kevincallahan.org/ Sent from iCloud via my iMac 27 "Your time is limited, so don't waste it living someone else's life. Don't be trapped by dogma — which is living with the results of other people's thinking. Don't let the noise of others' opinions drown out your own inner voice. And most important, have the courage to follow your heart and intuition. They somehow already know what you truly want to become. Everything else is secondary." - Steve Jobs
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