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From: sthaug@nethelp.no
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To: jkh@zippy.cdrom.com
Cc: lh@aus.org, culverk@wam.umd.edu, current@FreeBSD.ORG,
        root@drama.navinet.net
Subject: Re: 4.0-Current, netscape halts system 
In-Reply-To: Your message of "Sun, 24 Jan 1999 15:23:50 -0800"
References: <1476.917220230@zippy.cdrom.com>
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Date: Mon, 25 Jan 1999 00:32:24 +0100
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> I really don't understand the problems that everyone is having,
> myself.  I've been running netscape (communicator 4.5) in -current for
> ages now and just switched to 4.0 without any problems.  My netscape
> still continues to function just fine and has never crashed any of
> my system so much as once.
> 
> Why the wide disparity in experience, I wonder?

On my system, running the FreeBSD 4.0[678] or 4.5 version, the setting
of MOZILLA_NO_ASYNC_DNS makes a noticeable difference.

With MOZILLA_NO_ASYNC_DNS turned off, Netscape uses normal name lookup
inside the netscape process itself. In 2.2.[78] this worked fine, in
3.0 I get frequent hangs if the name lookups take "too long". I can
avoid the hangs if I make sure that the name to IP address is in my
local name server cache (for instance by doing a manual nslookup or
similar on the name). This is of course rather cumbersome.

With MOZILLA_NO_ASYNC_DNS turned on, Netscape starts a separate (huge,
resource consuming) asynchronous DNS lookup daemon. But I don't get
the hangs.

Steinar Haug, Nethelp consulting, sthaug@nethelp.no

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