From: Rob McCool <robm@netscape.com>
Newsgroups: netscape.devs-nsapi
Subject: Re: net_read/net_write SEGV when used within a spawned thread
Date: Thu, 31 Oct 1996 12:53:16 -0800

> It seems that I get a SEGV whenever I try to use net_read/net_write
> within a function that was run by a spawned thread. They work fine if
> they are called directly.
> 
> Here is a small example of the problem.
> You can make it connect wherever you want. I just used it to connect
> to the local time server (port 37).
>
> This works on NT and Enterprise 2.1 servers. So I assume it's due to
> the fact that Fastrack 2.0 uses user level threads only.
> I would definately like to get it working with 2.0 if possible rather
> that telling our customers that they have to upgrade to 2.1.
> 
> The only other solution I could think of is to avoid the usage of the
> net_ calls and just use normal non_blocking sockets. Would that work?

This is a terrible bug in the 2.0 UNIX servers. The 2.01 servers fix it.
The workaround of using regular socket calls as you suggest later is one
way to fix it.
--
Rob McCool, robm@netscape.com http://home.netscape.com/people/robm/
Stunt Programmer, Netscape Communications Corporation
It was working ten minutes ago, I swear...

Reproduced by permission of the author.