Re: POST large amount of data causes segmentation fault

Hi,

I meant I'm posting data from a form, javascript is collecting a series of numbers from a <input type=text> as a string.
Javascript seperates each number with a '/' then I use split within Perl to get the list of numbers into an array.

The length of the URL where the data is being posted to is just send_message01.pl
The length of URL is fine.

It's the length of the string being posted which causes problems. If I reduce it's length then it works.

I have a <FORM> with list of users and GSM numbers. If that list is about 600 users it has worked fine. I was testing with about 4000 users when I came across this problem.






Terveisin/Regards

Scott Alexander
Asiantuntija, järjestelmät  Systems Specialist

Humak
Humanistinen ammattikorkeakoulu
University of Applied Sciences
www.humak.fi<http://www.humak.fi/>

Tel. +358 (0)50 411 9556

[email protected]<mailto:[email protected]>

________________________________
From: Russell Lundberg <[email protected]>
Sent: 09 February 2020 12:12
To: Scott Alexander <[email protected]>
Cc: [email protected] <[email protected]>
Subject: Re: POST large amount of data causes segmentation fault

Scott,

Are you saying that the incoming request has a length of 42,000+ characters?

Apache docs say 8,192 characters is the maximum length of a URL.

Would it be possible to reduce the length of the request until the segmentation fault stops occurring?
--
Russell Lundberg
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On Sun, Feb 9, 2020 at 4:49 PM Scott Alexander <[email protected]<mailto:[email protected]>> wrote:
Hi,

I have in my code

$req = Apache2::Request->new($r);

My code gets to line 41 then causes a "child pid 13766 exit signal Segmentation fault (11)"

$r->log_error("LINE 41") ;
@number = split /\//, $req->param("numbers") ;
$r->log_error("LINE 43") ;

the incoming numbers contains a string of mobile numbers which in this test is 3900 numbers long and each number is 10-12 characters long. javascript tells me the length of the posted string is 42260 characters long.

Any idea how to fix this problem?

httpd -v
Server version: Apache/2.2.15 (Unix)
Server built:   Jun 19 2018 15:45:13

but I get the same error on the production server which is

Server version: Apache/2.4.6 (CentOS)
Server built:   Aug  8 2019 11:41:18


Terveisin/Regards

Scott Alexander
Asiantuntija, järjestelmät  Systems Specialist

Humak
Humanistinen ammattikorkeakoulu
University of Applied Sciences
www.humak.fi<http://www.humak.fi/>

Tel. +358 (0)50 411 9556

[email protected]<mailto:[email protected]>