Re: Help with netlink needed

["Frank Ch. Eigler" <fche at redhat dot com>]

Hi -


> We really need to start getting the kernel <-> user space data transport
> code into the runtime library soon.  [...]

(At some point, you'll also need to address the posted concerns about
the runtime code already committed.)


> 1. High-speed transfer of large amounts of collected data.  [...]

It would be helpful if you outlined end-to-end usage scenarios for
such a data path.  Are you only talking about a script-level function
call to replace printk()?  Are you talking about asynchronous
global-variable snapshots as per the old /proc code?  Do you imagine
that result dumps would generally come from explicitly scripted trace
calls during systemtap probe shutdown?

> 2. A separate channel for immediate messages.  Used to signal error
> conditions, print warnings, etc.  Anything that is not normal trace
> output.

If such "health" status data was routinely inserted into the normal
data stream, would a second such stream be necessary?


- FChE

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