Re: OS X System freeze

Roger wrote:
Wow am I disappointed right now. I've been using OS X since its inception, on several different Macs with several different utilizations, and just now I had to hard restart my computer for the first time because my iBook became totally unresponsive after waking from sleep. The only thing that would respond was the mouse cursor. No dock, no force quit, nothing. I never thought this could happen in OS X! It was like being back in MacOS days. I applied the new updates a couple days ago--(I also had my first ever airport disfunction and had to restart to re-recognize my router just last night also) I'm blaming the updates--but still what a huge disappointment.

Sometimes operating systems get wedged. There is currently no way around this.

There might be a race condition or something, since I've occasionally seen a similar hang when waking from sleep. I was able to ssh in and kill the offending process. I recall once the screen saver was wedged, though on one occasion I had to kill my login process, which reset the box back to the login screen.

The point I'm making here are:

1. Sometimes modern kernels get wedged. This is an unfortunate fact of life. OS X is sufficiently complex that all possible states cannot be tested. Also, the variety of environments (other software, custom hardware, drivers, user config) it can be deployed in means that the test space is essentially infinite.

2. You probably don't have to immediately hit the Big Grey Switch when the UI appears wedged. Sometimes you can simply login remotely and twiddle some switches and dials.

OS X means you have more tools at your disposal to diagnose such problems, when they inevitably occur.
.

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