What websites are you connected to?  I tried reproducing with gmail + hangouts, but didn't get any connections to talkgadget.google.com.  I suspect it's some interaction between latest chrome and whatever web apps are using talkgadget, so I need to know what webapp that's coming from.

It would also be of value (i.e. the website question is more important because I might be able to repro, but I'd still like to see this) if you could reproduce this problem with a net-internals dump.  You sound like you already know about net-internals :-}, but just in case:  https://sites.google.com/a/chromium.org/dev/for-testers/providing-network-details.

CCing mmenke@ in case this looks familiar (and for socket pool info) but I suspect this is tracking down the web-app and figuring out what the bad interaction with Chrome is.

Are you just seeing this for SSL sites?  Could you please provide the net-internals log of this happening?  Feel free to send to me directly.  It would be best if you open net-internals before the issue appears, and save a log soon after running into the issue.

When the problem first occurred I disabled the Hangouts extensions in Canary and enabled them in Beta. This morning after I saw that the incident was being looked was being looked at - I reversed this and fired them up in Canary once again (Version 56.0.2915.0 canary (64-bit). I wanted to leave it run for several hours. The problem is no longer accuiring and from chrome://net-internals/#sockets the socket usage is looking bery reasonable and sane.

This regression appears to have been fixed somewhere between the update I reported it on and the latest Canary,

So - looks like it has been "fixed". I apologize for not following this more closely but have the usual pre-year end freeze scramble at work to attempt to get system changes in place before the change freeze comes into effect in a little over a week, Unfortunately too few hours in the day at  times.

No problem at all; we have to deal with version skew from Stable all the time, and a bug that happened a few canary versions ago is very fresh :-}.

Closing the issue; please file a new bug or post on this issue if the problem comes back.

No problem, thanks for the followup!  If the issue reappears, please file a new bug with a log attached (Or if you prefer not to share publicly, file a new bug and record a log, to be sent to whomever follows up on it).

Thanks for looking at it and getting back to me. It is appreciated - I do not open bug reports lightly - even though I try to put Canary through the wringer - multiple open windows with a combined total number of tabs pushing 100 at all times (I do have the CPU & RAM for it).