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In my experience: The mac kernel intermittently locks up during single-step kernel debugging. This has been an issue since well before 10.12, at least going back to 10.6 .
Using breakpoints instead of single-step mostly avoids the kernel debugger lock-ups, but still happens occasionally. For issues where breakpoints don't cut it, things can be pretty frustrating.
Totally agree; I ran into this problem as well. From memory, you get a limited number of single-steps before you should continue or you get a hang. I also recommend using as many breakpoints as possible. --Ken _______________________________________________ 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: https://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.... This email sent to site_archiver@lists.apple.com