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Re: Curl coredump after re-use connection

From: Dan Fandrich via curl-library <curl-library_at_cool.haxx.se>
Date: Tue, 17 Sep 2019 08:55:59 +0200

On Tue, Sep 17, 2019 at 05:01:45AM +0000, Nguyen Hoang Tuan (Hubble Vietnam) via curl-library wrote:
> I am an newbie starting to use libcurl and trying to write an example to reuse
> http connection.
> Everything is ok when i just re call curl_easy_perform many times without any
> change.
> But when i try reuse connection from HTTP_POST to use in HTTP_GET, i got
> segmentation fault.
> The server address is same, just endpoint is difference.
>
> About the way I reuse connection, I just create a global variable 'curl', call
> easy init and passing it to post and get function.
>
> Libcurl version: 7.47.0

This version is over 3 years old. The first thing I'd suggest is trying a newer
version.

> I also got segmentation fault if i re-use the connection with difference server
> address.
>
> So what I should do and should not do when try to re-use connection ?

It should happen for the most part automatically. It's a common use case so I
would immediately suspect the application. Can you show us the code?
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Received on 2019-09-17