Re: uninterruptible sleep lockups
From: Chris Friesen
Date: Tue Feb 22 2005 - 15:17:15 EST
Anthony DiSante wrote:
linux-os wrote:
There has been some discussion that these hung
states could be "fixed", but that's absolutely
positively incorrect.
That's one of the things I asked a few messages ago. Some people on the
list were saying that it'd be "really hard" and would "require a lot of
bookkeeping" to "fix" permanently-D-stated processes... which is
completely different than "impossible."
Nothing is "impossible". Cracking SHA-256 isn't "impossible", it just
takes more computing power than exists on the face of the planet.
Call it "infeasable" if you like. It's theoretically possible, but the
amount of work and the overhead involved just are not realistic. And
then you have the likelihood of a bug in the bookkeeping code leading to
runtime corruption... Better to take the hit now and fix the original
problem.
Chris
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