site_archiver@lists.apple.com Delivered-To: darwin-kernel@lists.apple.com Dkim-signature: v=1; a=rsa-sha1; c=relaxed; d=bytnar.net; h=date:from:to :cc:subject:message-id:references:mime-version:content-type :in-reply-to; s=postfix; bh=/EbXbW2uxfhtyIegu1pdpmOpMzo=; b=QlFi h4Pbiop1rVtIusShNFZkVHKHyGaOxT1l0e93sm27k+e1pGgduR+erU3zKbH1JZOe FnB4J72pdP3yBzQlDGdvj2wD7VgRsCFwu7FULq6hEqrU9v1JBfdpyajeJUbA7n/F m8Lnz/nPLGgug04MvlFgaTG1frcj7GOigfnBZhc= Domainkey-signature: a=rsa-sha1; c=nofws; d=bytnar.net; h=date:from:to :cc:subject:message-id:references:mime-version:content-type :in-reply-to; q=dns; s=postfix; b=joSL0wzL5q6MBcA+P71mBcMkYt2Z0T KDqs2uE6MvTINZ7iQnSHXqWgpFDYKJSiqQXSu/9OKP5VwG6xmuC/WaYwN2R5RaSP EO92AUzzknndDKqgm7jQf+Ohegq/M4zaDXunGdRrcLe7Z1Vy9lCNiJfb+Zckd7B0 GvANCIp4MgK0A= User-agent: Mutt/1.5.20 (2009-06-14) If Spin Control doesn't seem productive, try stackshot. man stackshot sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.stackshot.plist "The stack snapshot is triggered upon pressing a special key chord; this is currently Control-Option-Command-Shift-Period" After typing the special key chord, execute the command: sudo /usr/sbin/symstacks.rb < /Library/Logs/stackshot.log to view the stack backtraces. If it's a kernel related freeze, this might help isolate it. The stackshot description above is from Leopard, probably the dev tools. Usage may have changed in Snow Leopard or newer dev tools. --Steve On Sat, Apr 10, 2010 at 02:39:10PM -0400, Michael Cashwell wrote:
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
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