Re: KGTP (Linux Kernel debugger and tracer) 20110405 release

From: Peter Zijlstra
Date: Wed Apr 06 2011 - 04:19:33 EST

On Wed, 2011-04-06 at 13:54 +0800, Hui Zhu wrote:

> This is a good question.
> The KGTP is completely different with KGDB. It will not supply simple
> gdbrsp debug interface to user. It just supply interface between the
> kernel tracepoint(Now, just support kprobe, will add others later) and
> GDB tracepoint function.
> So user can debug and trace Linux kernel with GDB without stop the
> Linux Kernel (So the GDB can running on this Kernel). It is a trace
> tools and debug tools.

But this isn't really an answer either. Could you extend the existing
KGDB infrastructure to provide these features and thereby re-use
existing infrastructure to reduce your patch size and code duplication?

Jason (the KGDB maintainer) certainly thought there was much possibility
there when I spoke to him yesterday.

Think of it this way, wouldn't it be much better if there was one tool
that could provide the combined feature set of KGDB and KGTP?
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