site_archiver@lists.apple.com Delivered-To: darwin-kernel@lists.apple.com On Apr 10, 2010, at 11:40 AM, Adam Mitchell wrote:

I want a kernel stack trace (on screen or disk) when I press the power button on my G4 system. I don't see any"debug=" options to "boot-args" that would do this.

I'm just trying to troubleshoot a problem - we get the rainbow wheel several times a day and have to power cycle the computer. The mouse pointer will move, but that's about it - Dock doesn't respond, can't bring up the force-quit dialog, can't right-click any icons in the dock, etc.

Can anyone give me some tips?

Assuming you have the developer tools installed, try running "Spin Control" (and leave it running). When the spinning happens it should record what and why. HTH. -Mike _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.a... This email sent to site_archiver@lists.apple.com