[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: [Xen-devel] serial console stopped working

On Mon, 14 Feb 2005, Michael A Fetterman wrote:

I've noticed this too. However, it's not reliable.

I can boot the same xen/xenolinux images and have the console work,
and subsequently have it not work.  And then work again.  I haven't
figured out what causes it to change states yet.

When the serial console does not work, Xen spews out this line
when I type my first character at mgetty:

(XEN) Unexpected IRQ trap at vector 29.

If I type into the serial console while eth0 is being initialised,
I get an infinite (well, I stopped after 5 minutes) sequence of:

(XEN) Unexpected IRQ trap at vector 79.
(XEN) Unexpected IRQ trap at vector 79.
(XEN) Unexpected IRQ trap at vector 79.

I haven't yet run into the magical way to make it work ...

Note that I _can_ type letters into the serial console during
the earlier phases of the bootup process, eg. before udev is

"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan

SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now.
Xen-devel mailing list



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.