site_archiver@lists.apple.com Delivered-To: darwin-kernel@lists.apple.com User-agent: Roundcube Webmail/0.5.4 Thank you for the explanation. It was useful. Are you sure your target is running the 32-bit kernel? What does uname -a print before you enter the kernel debugger. So, armed with this information, I invoked gdb correctly by doing: gdb /Volumes/KernelDebugKit/mach_kernel --arch=x86_64 and, now, showallkmods works. Yes, you need to have your kernel debug kit exactly match whatever build your target is running. There is no close enough. _______________________________________________ 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... On Thu, 03 Nov 2011 05:18:34 -0700, Shantonu Sen wrote: kdp-reattach lets you steal a connection in case someone else is currently attached. It can also help in cases where a debug session is interrupted and you need to get the panicked system to just reset its internal state machine. Brilliant. I was pretty sure I was running a 64-bit kernel and rechecked in the system profiler. In the entry for 64-bit Kernel and Extensions in the Software section, it said yes. Ok. So, unless I can locate the 10.6.8 10k549 kernel debug kit (which may not even exist), I will need to downgrade the machines to 10.6.7 10J869, which I can find at https://developer.apple.com/downloads...correct? This email sent to site_archiver@lists.apple.com