Kexec not working as expected from inside X
mayank.utexas at gmail.com
Mon Nov 30 11:12:32 EST 2009
On Mon, Nov 30, 2009 at 8:50 AM, David N. Lombard <dnlombar at ichips.intel.com
> 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
> 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
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