Re: [Xen-devel] PATCH: ability to send sysrqs to Linux domains

[Mike W. <mik...@hp...>]

Matthew Bloch wrote:
> Here's the promised patch against a recent 2.01 snapshot to allow you to 
> send sysrqs to running Linux kernels.  I went with Keir's suggestion of 
> adding a sub-reason code to the shutdown message with a 1-byte payload 
> specifying which key was pressed.  Hope it's acceptable for the main 
> tree; I will happily alter it to spec if any of the maintainers have 
> suggestions for better structuring it.

There's a slight problem with the client/server python code.
On the client side you have

def xend_domain_shutdown(self, id, reason, key=None):
         return self.xendPost(self.domainurl(id),
                              {'op'      : 'shutdown',
                               'reason'  : reason,
                               'key'     : key })

while on the server side you have

  fn = FormFn(self.xd.domain_shutdown,
              [['dom', 'str'],
               ['reason', 'str'],
               ['key', 'int']])

which means 'key' has to be an int.
So passing 'None' is going to cause an error.

Mike