[Xen-devel] Re: follow-up to guest debug support patches

[Kip Macy <kip.macy@xxxxxxxxx>]

> They should get undone automatically, but if the domain crashes, it
> might not get cleaned up until the debugging process exits -- which
> might very well be what you want.

Yes it is.

> Yes, the NetBSD in-kernel debugger allows you to set breakpoints
> in the kernel.  The FreeBSD one should as well?  I'd prefer if

Probably. I find DDB so crufty that I've only ever used it after a crash.

> it was possible to set an EDF flag on the domain from dom0 which
> controls the behaviour.  I guess you want the pausing behaviour all
> the time such that if a domain causes a fault, it is paused and then

I had thought about this, but it seemed clumsy. For some reason it
hadn't occurred to me to make it a guest boot-time option. Thanks.

> highly motivated, you could also extend the tools ;-)

Given the time I'll do that.

> Thanks!  I think this is an excellent feature to have!

And thank you for the excellent comments and suggestions. 

                 -Kip


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