Re: [Xen-devel] serial console stopped working

> On Mon, 14 Feb 2005, Rik van Riel wrote:
> 
> > I haven't yet run into the magical way to make it work ...
> 
> I've rebooted my (SMP, dual PIII-800) test system continuously
> for most of today now, and I still can't get the serial port to
> work any more...
> 
> > Note that I _can_ type letters into the serial console during
> > the earlier phases of the bootup process, eg. before udev is
> > started.
> 
> This sometimes doesn't work, either.

I've just checked in a potential fix. The symptoms sound a lot like
what happens when the per-cpu IDTs get out of sync, so the patch
ensures that updates to the cpu0 IDT also get written to any other
IDTs that have been allocated.

 -- Keir


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