If virtual machine is feasible in debug environment, there is no need even for serial port. For example, following blog shows setting up kgdb with Sun Virtual Box: http://fotis.loukos.me/blog/?p=25 It actually is helpful in my projects. Rajat On Thu, Mar 24, 2011 at 3:25 AM, julie Sullivan <kernelmail.jms@xxxxxxxxx> wrote: > Hi list > On linux-kernel today there were a couple of interesting tips for > debugging the kernel from a console in the absence of a serial port. I > thought this might be useful/interesting to someone here (it was to > me) so here's the link: > > https://lkml.org/lkml/2011/3/23/1 > > Andi Kleen mentions the following: > >>There is also USB debugport, but you need a quite expensive cable >>(~$100) for it. Usually it only works on one of the USB ports. > > Googling for 'USB Debugport' found this, which also might be useful: > > http://www.coreboot.org/EHCI_Debug_Port#AMIDebug_RX > > Does anyone (who might also be interested in reading this article) > know if the 'Ajays NET20DC USB Debug Device' mentioned in this article > might be the 'quite expensive cable' mentioned by Andi? (I saw one of > these listed for $89.) Apart from generally coming in handy, I have a > netbook I'm thinking of sacrificing as a kernel testbox in the future > which I'm sure doesn't have a serial port... (yep, I think that's a > really great excuse for buying yet another new funky device :-) ) > > Cheers > Julie > > _______________________________________________ > Kernelnewbies mailing list > Kernelnewbies@xxxxxxxxxxxxxxxxx > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
