Re: [GSoC] Remote kernel debugging over Ethernet

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Wed, Mar 25, 2009 at 11:01:21PM +0200, Jordan Gordeev wrote:
>[...]
> One important question to ask is what the *goal* of kernel debugging  
> over Ethernet is. There are virtualization solutions that can be used to  
> debug a kernel without hangs and crashes. Some of them can offer access  
> to kernel memory while the kernel is in a very "crashed" state. What  
> can't be debugged with virtualization is only 1) device drivers for real  
> hardware,

A lot can be done with Xen and PCI pass-though (it can even expose
otherwise-hidden bugs because it's more picky about bus_dma(9) use).
Unfortunably this doesn't work well for pcmcia or cardbus devices.

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--