On Sun, 28 Sep 2014, José Pérez Arauzo wrote:
> I am trying to track down a (deadlock?) issue in CURRENT via DDB. The kernel
> not complete hw probes on my Acer V5.
> I get stuck on apic_isr looping which leads nowhere.
> So I thought maybe things improve if I debug from another machine.
> What do you use for kernel debugging? According to the handbook kgdb over
> is a good option, do you agree? I'm on a netbook with no ethernet and no
> for firewire: can I have a USB / nullmodem setup to work?
> I have no old-style uarts hardware anymore, as the handbook suggests...
> Any idea is welcome before I buy extra hw. I have a USB to serial showing up
> /dev/cuaU0, do I need to grab another one and a nullmodem cable or there are
> alternatives? Thank you.
I'm not sure that there are alternatives at all, unfortunately.
You may be reduced to debugging-via-printf.
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