Re: Firefox 31: problems with yahoo and gmail

["John D. Baker" <jdbaker%mylinuxisp.com@localhost>]

On Mon, 11 Aug 2014, Ottavio Caruso wrote:

> On 11 August 2014 17:57, John D. Baker <jdbaker%mylinuxisp.com@localhost> 
> wrote:
> > I'm using firefox-30.0nb1 (pkgsrc-2014Q2) and although I don't use gmail,
> > I have been having persistent problems with Google-hosted website assets.
> >
> > They seem to have started around 1 July 2014.  Attempting to use Google
> > for basic search (either direct or embedded in other sites, like
> > NetBSD.org) results in connection reset after a long time attempting to
> > load.
> 
> Touching wood, it seems that these connection resets have gone after
> hacking the useragent string.

It appeared the problem was limited to one machine--the one I use almost
all the time.  It wasn't just Firefox, but also 'lynx' and even 'telnet'
to "www.google.com" port 80 would fail.

I watched the traffic and saw the following:

  TCP handshake completed
  HTTP "GET" sent by browser (used 'lynx' for testing)
  Response sent by server
  Responses not acknowledged by TCP stack (still acks relative "1").
  Server repeats response
  Ack relative "1"
  Browser terminates with "FIN".
  Server sends RST

In my case it ended up being a problem with my Thinkpad A31p's "fxp0"
interface and the "TCP4CSUM_rx" (tcp4csum-rx) capability.  When I turned
it off, google-related things started working again.

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