On Fri, Jan 11, 2008 at 11:41:40AM -0800, Linus Torvalds wrote:
>
> (I also wonder if we should limit the number of entries we print out.
> Sometimes the stack frame ends up being so deep that we lose the
> *important* stuff. I think it might be good idea to have some rule like
> "the first 5 entries go to the screen, the rest will be KERN_DEBUG and
> only go to the logs by default" - so a "dmesg" would show it all, but if
> the machine is hung, the screen won't have been scrolled away from all
> the other things by a long backtrace!)
What might be useful is the first 5 and last 5. Sometimes if you have
a very deep call chain, the what was the original system call or
interrupt which got the kernel deep into la-la land can often be
useful. Just a thought.
- Ted
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