Segmentation fault error 4 in liblftp-network.so

Hi,

I am getting the following errors in message log while mirroring the red-hat 7 latest packages using the mrepo and lftp 4.0.9. They are

Error:

lftp[26710]: segfault at 0 ip (null) sp 00007fffcd10e5e8 error 14 in lftp[400000+b000]
lftp[26769]: segfault at 18 ip 00007fdb03ff4808 sp 00007fff2270cda0 error 4 in liblftp-network.so[7fdb03fe2000+20000]

Cause:

Bug in lftp 4.0.9 package.

Solution:

To resolve the segmentation fault error, you need to install the latest lftp packages from the yum repo or download the source code to build and install lftp in the local system as follows:


Updating the lftp from repo

yum update lftp

Download the lftp

Download the lftp source code following url:

http://lftp.yar.ru/ftp/lftp-4.6.3a.tar.gz

Build the lftp:

Install the lftp from the source code as follows:

1. Pre-Requisite

Install the following packages to  install the lftp package:

yum install readline-devel gnutils-devel

2. Build Source Code

After installing the pre-requisite packages, please follow the procedure to build the lftp packages from the source code as follows:

./configure --prefix=/apps/lftp/ --with-gnutls=yes --with-openssl=yes

make

make install

It will install the lftp package in /apps/lftp directory.

Configuring lftp command

1. Edit the /etc/mrepo.conf and add replace the lftpcmd value with /apps/lftp/bin/lftp

2. Edit the /apps/lftp/etc/lftp.conf and add the following lines to download the redhat 7 packages from the cdn.redhat.com

set ssl:ca-file "/root/certs/redhat-uep.pem"

set ssl:key-file "/root/certs/cert-key.pem"

set ssl:cert-file "/root/certs/cert.pem"

set net:timeout 86400

3. Execute the following command to mirroring the redhat 7 packages:

    mrepo -guvvv redhat-7Server

    It will mirror the red-hat packages from the cdn.redhat.com

    Please refer my existing blog how to setup mrepo redhat 7
 

After installing the lftp latest 4.6.3a version, the segmentation issues are resolved.