[Koha-devel] Printing patron cards results in 100% cpu

[Sven Halm]

Hello and happy Easter! 

I have a problem with the patronage card printing. I also described the problem in Bug 20077. I got a tip from Katrin to try the mailing list. 

When I try to print the patron cards, the /usr/share/koha/intranet/cgi-bin/patroncards/create-pdf.pl does not finish and runs with 100% CPU load. 

In plack-error.log I find the following lines: 
Use of uninitialized value $batch_id in concatenation (.) or string at /usr/share/koha/intranet/cgi-bin/patroncards/create-pdf.pl line 68. 
Use of uninitialized value in multiplication (*) at /usr/share/koha/lib/C4/Patroncards/Patroncard.pm line 239. 
Use of uninitialized value in addition (+) at /usr/share/koha/lib/C4/Patroncards/Patroncard.pm line 256. 
Use of uninitialized value in multiplication (*) at /usr/share/koha/lib/C4/Patroncards/Patroncard.pm line 288. 
Use of uninitialized value in multiplication (*) at /usr/share/koha/lib/C4/Patroncards/Patroncard.pm line 239. 
Use of uninitialized value in addition (+) at /usr/share/koha/lib/C4/Patroncards/Patroncard.pm line 256. 
Use of uninitialized value in multiplication (*) at /usr/share/koha/lib/C4/Patroncards/Patroncard.pm line 288. 
Use of uninitialized value in multiplication (*) at /usr/share/koha/lib/C4/Patroncards/Patroncard.pm line 239. 
Use of uninitialized value in addition (+) at /usr/share/koha/lib/C4/Patroncards/Patroncard.pm line 256. 

The problem first appeared in February 2018 after I started the Ubuntu updates. Unfortunately I don't remember what has been updated. 

Current system environment (no changes made to koha!): 
OS: Ubuntu 17.10 
Koha-Version: 
17.11.04.000 
OS Version ('uname -a'): 
Linux koha 4.13.0-37-generic #42-Ubuntu SMP Wed Mar 7 14:13:23 UTC 2018 x86_64 
Perl Interpreter: 
/usr/bin/perl 
Perl-Version: 
5.026000 
Perl @INC: 
/usr/share/koha/lib 
/usr/share/koha/installer 
/usr/share/koha/lib/installer 
/etc/perl 
/usr/local/lib/x86_64-linux-gnu/perl/5.26.0 
/usr/local/share/perl/5.26.0 
/usr/lib/x86_64-linux-gnu/perl5/5.26 
/usr/share/perl5 
/usr/lib/x86_64-linux-gnu/perl/5.26 
/usr/share/perl/5.26 
/usr/local/lib/site_perl 
/usr/lib/x86_64-linux-gnu/perl-base 
MySQL-Version: 
mysql Ver 15.1 Distrib 10.1.30-MariaDB, for debian-linux-gnu (x86_64) using readline 5.2 
Apache-Version: 
Server version: Apache/2.4.27 (Ubuntu) 


Unfortunately I am not able to print patron cards at the moment. It would be great if there was a solution for this soon. 

Many greetings 
Sven 

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