Re: [git pull] kgdb-light -v10

[Linus Torvalds]

On Tue, 12 Feb 2008, Andi Kleen wrote:
> 
> There tend to be timeouts (e.g. softlock/nmi watchdog at least). I think
> some of the IPIs eventually time out too.  In general losing a lot 
> of time can lead to weird side effects.

I do agree that kgdb and watchdogs aren't like to work well together. And 
I don't think you can sanely expect to not have a "disable lockup 
detection" when you start poking around with kgdb.

We also just have to expect that time will also stop while sometbody is 
messing around with kgdb.

So I don't dispute that any kernel debugger will *always* be intrusive in 
those ways. That's pretty inevitable. I just think the code itself can try 
to avoid hooking into various places all over the map.

			Linus
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