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Re: [Lynx-dev] --enable-nsl-fork doesn't always work ?


From: Thomas Dickey
Subject: Re: [Lynx-dev] --enable-nsl-fork doesn't always work ?
Date: Sun, 22 Apr 2012 17:40:47 -0400
User-agent: Mutt/1.3.27i

On Sun, Apr 22, 2012 at 05:36:13PM -0300, Frédéric L. W. Meunier wrote:
> On Sun, Apr 22, 2012 at 03:33:23PM -0400, Thomas Dickey wrote:
> > On Sun, Apr 22, 2012 at 03:14:45PM -0300, Frédéric L. W. Meunier wrote:
> > > I installed Arch Linux and compiled 2.8.8dev.12 on it to have the latest 
> > > code. The problem is that something stopped working: 'z', to interrupt 
> > > the "Looking up" phase. Now, it stops after ~10 seconds if the site is 
> > > unavailable, like http://sempreaovivo.radio.br/ . --enable-nsl-fork was 
> > > enabled, so what may be causing it ? glibc ? It works fine with 
> > > Slackware.
> > 
> > I checked with an older version, and it still hangs.  Lynx is hanging
> > not in the DNS lookup (which is what nsl-fork is good for), but in
> > connecting to the site.  There was some discussion of this aspect a
> > while back - I don't recall that anyone proposed to fix for interrupting
> > this, aside from noting that it times out after a while.
> 
> Here, it hangs at "Looking up sempreaovivo.radio.br", after ~10 
> seconds returns "Alert!: Unable to connect to remote host." and I can 
> get it back.
> 
> But I was wrong. I thought it worked on Slackware, but I compiled 
> 2.8.8dev.12 on it and it does the same. 2.8.7rel.2 works fine.

But "here" (Debian 5.0 with 2.8.2dev.12 or 2.8.7rel.1) both hang.
The difference between rel.1/rel.2 is not related to this area.
Comparing traces on your working/non-working versions might show
something useful - if I trace it, I see this error:

        HTParse:      result:`sempreaovivo.radio.br'
        Looking up sempreaovivo.radio.br
        HTGetAddrInfo: getaddrinfo(sempreaovivo.radio.br, 80): Name or service 
not known
        Unable to locate remote host sempreaovivo.radio.br.
        HTTP: Unable to connect to remote host for 
`http://sempreaovivo.radio.br/' (errno = 2).

        Alert!: Unable to connect to remote host.

        HTAccess:  status=-29999
        HTAccess: `http://sempreaovivo.radio.br/' has been accessed, No data 
loaded.
        stop_curses: done.

fwiw, it also hangs from my desktop with firefox.

-- 
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net

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