Messages in this thread | | | Date | Tue, 10 Apr 2007 03:07:01 -0400 | From | Jeff Garzik <> | Subject | Re: init's children list is long and slows reaping children. |
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Linus Torvalds wrote: > > On Mon, 9 Apr 2007, Andrew Morton wrote: >>> 10 ? S< 0:00 [khelper] >> That one's needed to parent the call_usermodehelper() apps. I don't think >> it does anything else. We used to use keventd for this but that had some >> problem whcih I forget. > > I think it was one of a long series of deadlocks. > > Using a "keventd" for many different things sounds clever and nice, but > then sucks horribly when one event triggers another event, and they depend > on each other. Solution: use independent threads for the events.
Nod. That's the key problem with keventd. Independent things must wait on each other.
That's why I feel thread creation -- cheap under Linux -- is quite appropriate for many of these situations.
Jeff
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