Re: utrace vs. ptrace

[Ingo Molnar <mingo@elte.hu>]

* Ingo Molnar <mingo@elte.hu> wrote:

> utrace enables something like 'transparent live debugging': an app 
> crashes in your distro, a window pops up, and you can 'hand over' a 
> debugging session to a developer you trust. Or you can instruct the 
> system to generate a coredump. Or you can generate a shorter summary 
> of the crash, sent to a central site.

not to mention that utrace could be used to move most of the ELF 
coredumping code out of the kernel. (the moment you have access to all 
crashed threads userspace can construct its own coredump - instead of 
having the kernel construct a coredump file) Roland's patch does not go 
as far yet, but it could be a possible target.

	Ingo