Re: Current two-machine debugging
Re: Current two-machine debugging
- Subject: Re: Current two-machine debugging
- From: Michael Crawford <email@hidden>
- Date: Wed, 21 Mar 2018 12:28:17 -0700
Thunderbolt Firewire needs an additional item in boot-args that is not
needed when the Macs have built-in firewire.
I don't recall what that additional item is but this hint is likely
all you need for Google to answer your prayers with insight.
On Wed, Mar 21, 2018 at 11:07 AM, <email@hidden> wrote:
> Hi! I haven’t had to do any modifications to some kernel level pieces that I
> worked on for a few years—up until a few days ago.
>
> I started trying to get two-machine debugging going again, but something’s
> going wrong… It’s probably something really simple that I’m missing.
>
> I’ve got two macOS 10.13.3 system connected with Thunderbolt Ethernet.
>
> - Manually assigned IP addresses to the respective interfaces, set the debug
> to 0x144, set the right kdp_match_name
> - Triggered a NMI
> - Got a connection with lldb, was able to look at variables etc., but when I
> ‘continue’ the remote machine doesn’t continue.
>
> I thought maybe it was an issue with interrupting a running kernel, so I set
> debug to 0x141. Target system pauses during boot for a connection, but when
> I try to connect the debugger the target system panics, goes back to waiting
> for debugger.
>
> I’ve tried it with SIP enabled and disabled, and with both the release and
> development kernels.
>
> Anyone have any ideas what I’m missing here?
>
> Kevin
>
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--
Mike Crawford
Portland Custom Software Development
email@hidden
http://soggywizards.com
One Must Not Trifle With Wizards For It Makes Us Soggy And Hard To Light
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