On Mon, Nov 30, 2009 at 8:50 AM, David N. Lombard <dnlombar at ichips.intel.com > wrote: > On Mon, Nov 30, 2009 at 12:57:40AM -0700, Bernhard Walle wrote: > > > > Mayank Kaushik schrieb: > > > > > > Is it something in the nvidia driver that's causing this to not work? > > > Any clues on what's going wrong, or how I can debug this further? > > > > You should attach a serial console to debug that. Is that possible on > > your system. It's also possible to use a USB-to-RS232 converter on the > > machine that should be debugged. However, that only works after the USB > > drivers have been loaded, so much later than a real serial console. > > A normal serial console will do for this particular task, but when you need > very early debugging, there's also a "USB debug" cable. AFAICT, this is a > sole-source item from Ajays Technology and only sold at > <http://www.semiconductorstore.com/cart/pc/viewprd.asp?idProduct=12083> > > See Documentation/x86/earlyprintk.txt on using the device... > > It's on my XMAS wish list ;) > Thanks, there should be one of those lying around at work, I'll give it a try. thanks, Mayank -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.infradead.org/pipermail/kexec/attachments/20091130/7f49a89f/attachment.htm>
