[PATCH/RFC v5 4/5]: core: Add dump device to call on oopses and panics

[David Woodhouse]

On Mon, 2009-11-30 at 10:23 +0000, David Woodhouse wrote:
> +       /* Theoretically, the log could move on after we do this, but
> +          there's not a log we can do about that. The new messages
> +          will overwrite the start of what we dump. */
> +       spin_lock_irqsave(&logbuf_lock, flags);
> +       end = log_end & LOG_BUF_MASK;
> +       chars = logged_chars;
> +       spin_unlock_irqrestore(&logbuf_lock, flags); 

Actually that's not true -- we _could_ hold the logbuf_lock until the
end of the function. Not entirely sure we _want_ to though...

-- 
David Woodhouse                            Open Source Technology Centre
David.Woodhouse at intel.com                              Intel Corporation