On Thu, 24 May 2007, Linus Torvalds wrote:
quoted text
> 
> Then, what you do is:
>  - stop user space
>  - suspend
>  - resume
>  - start user space

Btw, this is where things like "udevd" can be really problematic. That 
whole "uevent over netlink" stuff is really nasty for things like this.

It's quite possible that even for user-level threads, we simply MUST NOT 
freeze them the way we do. Exactly because of deadlocks.

I'm personally really really convinced that the whole freezer thing is a 
total disaster. I don't know how anybody can even imagine anything else. 
It's simply deadlock city.

We should freeze IO, not processes.

		Linus
-
unsubscribe notice
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/