On Sun, 22 Jul 2007, Alan Stern wrote:
On Sun, 22 Jul 2007, Miklos Szeredi wrote:
The only thing to do is what Rafael has been working on: unfreeze
things, hope the tasks sort themselves out, and try again.
Have we some proof, that this will untangle the freezing tasks in a
limited time? Or will it just make the problem harder to trigger?
Of course there's no proof. Just the opposite -- if things get hung up
the first time, they might get hung up the second time. And the
third...
But it ought to make the problem harder to trigger. For the present
that's a worthwhile improvement.
it gives the system more tries to find a spot in time where the deadlock
doesn't happen, if you find one you can continue.
but even if things keep getting hung up, at least you are backing out of
each try safely and can eventually tell the user "I give up, try shutting
some things down and suspending again"
David Lang
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