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Apparently, for some people, PuTTY randomly becomes unresponsive with Win2000/XP.
We've been getting rare but persistent reports of this for a while, but there seems to have been a rash of them recently (Feb 2004). None of us have ever seen this, so we're going to need some help if we're to stop it happening.
Common characteristics of the reports we've had:
If I had to make a guess, I'd investigate some of the trickery we use to get noise for random numbers. My notes also suggest that I thought someone thought that sound might be implicated, but I can't find any evidence for that now.
Once the system has got into this state, an SSH packet log of a new session which hangs might be useful, so we can infer exactly where it's hanging and what it might be doing (since there's been a suggestion that it's some way into the SSH protocol).
If someone can debug one of the hanging PuTTY processes and tell us
where it's got stuck, that would be good too.
Update, 2004-03-17: someone did this, and PuTTY is
hanging in noise_get_light(), around the call to
GetSystemPowerStatus().
Reports:
Update, 2004-03-17: one of our correspondents has been trying
a version of the development code (more or less equivalent to 0.54) with
the GetSystemPowerStatus() call disabled, and has reported
that the problem seems to have gone away.
This source of noise has now been removed as of 2004-03-18 (there were other good reasons too). Please let us know if this appears to solve (or not!) the problem.
(Perhaps we've been getting more reports recently because modern BIOI / Windows versions / whatever are more upset by frequent calls to the APM BIOS or whatever it is than older systems?)
Contact us:mirrors@uni-ruse.bg
