Yes. Same here. It freezes and while I can type a little, it ends up "liiiiiiik tttttiis".

Those freezes got a lot rarer after I disabled the dynamic pager [1]. I have only experienced it once since then.

I have had vm_stat and iostat running constantly to see if I can catch any metrics when it happens, but nothing stands out. It's not related to excessive I/O or swapping.

[1] https://news.ycombinator.com/item?id=5626835

Yes, this happens to me too but only under certain circumstances.

It happens all the time if I have an external keyboard plugged in and try to use the built-in keyboard or trackpad. It will often be non-responsive to input for about 5 seconds. Once both the keyboard and trackpad completely stopped working and I had to reboot (using the attached external keyboard). I noticed some USB errors in console once when this happened but didn't investigate.

I've also seen this when it's asleep and I try to wake it up. Often it will take 5 sec or more to respond and wake up.

I'm seeing the same thing. This is my first real Mac experience, got it from/for work, wasn't sure if something like this was "normal". (I'm a long-time Linux user, so I'm used to putting up with a lot of bullshit from my desktop.)

I've found a handful of forum posts and support requests, but no solution other than "it's probably a hardware defect and you should return it".

Definitely. I also lose the keyboard at the same time too though, so it's potentially a USB issue as well. Doesn't happen frequently enough that I'm able to work out exactly what causes it.

I occasionally get into a state in ML where the mouse click events stop working (and the Cmd-Tab UI doesn't show up). This persists until I kill "Dock". Then the mouse starts working again (and the desktop resets itself), but the dock and Cmd-Tab UI don't come back. (Cmd-Tab works, but doesn't display the UI.) I never figured out the magic thing to kill to fix this, and end up rebooting.

(This hasn't recurred since the latest point release, so it may be fixed now.)

I have no idea if it's related, buy my mouse cursor sometimes freezes on a 2011 iMac running Lion. Lots of details (and no answers) at http://apple.stackexchange.com/questions/88211/cursor-stutte...

I began experiencing this problem on my mid-2008 MBP late last year. More recently, I've found that slipping a piece of paper between the battery and the golden electrical strip helps a lot.

I've had that too, but when it eventually comes back (~10 seconds) I get about 100 repetitions of the last key I pressed. Mid-2009 MacBook pro.

Happens to me as well on a 2011 15" MBP running 10.8.3. I haven't been able to pin it down but it's really annoying sometimes.