June 2016 - Darwin-kernel - lists.apple.com

Debug related setup
by Prokash Sinha 29 Jun '16

29 Jun '16

Also I would love to know the exact combination of boot-args that will gen a core file as and when there is a kernel panic issued from kernel. I was trying to do the following - ($) sudo -s # nvram boot-args=“debug=0x404” //0x4 for using NMI, 0x400 for dump on panic Not much happened in 10.11. Thanks -Prokash _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)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(a)lists.apple.com

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Re: fwkdp setup
by Prokash Sinha 29 Jun '16

29 Jun '16

You need "sudo" to modify nvram. You must reboot after setting nvram, to let the changes take effect. On the target: sudo nvram boot-args="debug=0x146 kdp_match_name=firewire fwkdp=0x8000" sudo shutdown -r now fwkdp lldb (lldb) kdp-remote localhost fwkdp acts as a redirector of packets, making it appear as if your host has panicked, then sending all the packets via firewire to the target. debug=0x8146 changes the NMI key from Left-⌘ + Right-⌘ + Power to the Power button alone. That's the 0x8000 bit debug=0x145 halts at early boot. That's the 0x1 bit. If those aren't working, you haven't properly set boot-args on the target machine. _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)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(a)lists.apple.com

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Re: fwkdp setup
by Brian Bechtel 29 Jun '16

29 Jun '16

You need "sudo" to modify nvram. You must reboot after setting nvram, to let the changes take effect. On the target: sudo nvram boot-args="debug=0x146 kdp_match_name=firewire fwkdp=0x8000" sudo shutdown -r now fwkdp lldb (lldb) kdp-remote localhost fwkdp acts as a redirector of packets, making it appear as if your host has panicked, then sending all the packets via firewire to the target. debug=0x8146 changes the NMI key from Left-⌘ + Right-⌘ + Power to the Power button alone. That's the 0x8000 bit debug=0x145 halts at early boot. That's the 0x1 bit. If those aren't working, you haven't properly set boot-args on the target machine. _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)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(a)lists.apple.com

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fwkdp setup on 10.0 - ?
by Prokash Sinha 29 Jun '16

29 Jun '16

Hi, Now my question is if anybody was successful to setup kernel debugging using {host}Thunderbolt-to-FW<— FW ——>Thunderbolt-to-FW{target}. If so could you please give the args you used for nvram settings, and the steps for host machine to kick off the connection. I can issue an NMI from the target’s (Cmd + Cmd + Pow ). That’s about it. I can not connect using either lldb or gdb. Thanks, Prokash _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)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(a)lists.apple.com

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fwkdp setup
by Prokash Sinha 28 Jun '16

28 Jun '16

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NxGetLocalArchInfo is returning wrong information
by Gordo Cath 20 Jun '16

20 Jun '16

I wrote a little test program to give me information about my computer and it returns me the wrong information. I'm using Yosemite 10.10.5 and have a 3.7ghz Quad Core Xeon E5 MacPro When I call NxGetLocalArchInfo it populates a structure. When I print out the contents of the structure it tells me its a i486, cpu: 7, subtype: 4 Intel 80486 ======== When I dig into the header files, I see compiler flags there that are defined for Xeon etc When I do the menu Apple | About this mac it tells me the processor is defined as 3.7 ghz Quad Core Xeon E5 MacPro Is NxGetLocalArchInfo broken? Or am I supposed to be using a different function? I tried googling and didn't manage to find anything of value and when I looked it up in my xcode help i found no dox. Gordo _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)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(a)lists.apple.com

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Re: Signature validation in MacOs (10.12) beta
by Garth Cummings 20 Jun '16

20 Jun '16

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Re: Signature validation in MacOs (10.12) beta
by Prokash Sinha 18 Jun '16

18 Jun '16

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Re: Signature validation in MacOs (10.12) beta
by John Kraft 18 Jun '16

18 Jun '16

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Re: Signature validation in MacOs (10.12) beta
by Garth Cummings 17 Jun '16

17 Jun '16

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