[Xen-devel] xenbus_mkdir("/tools", "name") fails

[Anton Korenyushkin <tiger@xxxxxxxxxxxxxx>]

Hi,

I wrote subj in my module and i get instant reboot after calling this 
function. It doesn't depend on were xenstored started or not.

Please, explain me this thing: can i write back/front end drivers in the next 
manner: backend creates directory mydir in xenstore. Then frontends write 
files mydir/file-<domid> by xenbus_printf where they put grant reference to 
the shared frame and event chanel's port. Then backend reads this information 
and communicate with frontends. If it is right way for what reason xenbus 
drivers exist? And in what path in xenstore should i put mydir?

If it is not a right way, how to use xenbus drivers? I tryed to make simple 
front/back end drivers. They register only probe function in xenbus_driver 
struct and in this function do simple printk and return 0, but this function 
is never called. Backend module registers its driver by 
xenbus_register_backend, frontend by xenbus_register_device.

-- 
Best regards,
Anton Korenyushkin
mailto:tiger@xxxxxxxxxxxxxx

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