Bug #41016 for Unix-Lsof: Unix::Lsof dies on open files

Tue Nov 18 00:38:33 2008 nwetters [...] cpan.org - Ticket created

Subject:

Unix::Lsof dies on open files

Dies on open files. Use of uninitialized value in hash element at /usr/lib/perl5/site_perl/5.8.8/Unix/Lsof.pm line 208. Can't parse line g17739R17457ctailu2525Lngourlay Version info follows: [ngourlay@doha-daily ~]$ perl -v This is perl, v5.8.8 built for i386-linux-thread-multi Copyright 1987-2006, Larry Wall Perl may be copied only under the terms of either the Artistic License or the GNU General Public License, which may be found in the Perl 5 source kit. Complete documentation for Perl, including FAQ lists, should be found on this system using "man perl" or "perldoc perl". If you have access to the Internet, point your browser at http://www.perl.org/, the Perl Home Page. [ngourlay@doha-daily ~]$ perl -MUnix::Lsof -e 'print "$Unix::Lsof::VERSION\n"' 0.0.5 [ngourlay@doha-daily ~]$ lsof -v lsof version information: revision: 4.78 latest revision: ftp://lsof.itap.purdue.edu/pub/tools/unix/lsof/ latest FAQ: ftp://lsof.itap.purdue.edu/pub/tools/unix/lsof/FAQ latest man page: ftp://lsof.itap.purdue.edu/pub/tools/unix/lsof/lsof_man constructed: Tue Jan 9 15:54:39 EST 2007 constructed by and on: mockbuild@builder5.centos.org compiler: cc compiler version: 4.1.1 20061011 (Red Hat 4.1.1-30) compiler flags: -DLINUXV=26016 -DGLIBCV=205 -DHASIPv6 -DHASSELINUX -D_FILE_OFFSET_BITS=64 -DLSOF_VSTR="2.6.16" -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i386 -mtune=generic -fasynchronous-unwind-tables loader flags: -L./lib -llsof -lselinux system info: Linux builder5.centos.org 2.6.9-42.0.3.ELsmp #1 SMP Fri Oct 6 06:28:26 CDT 2006 i686 i686 i386 GNU/Linux Anyone can list all files. /dev warnings are disabled. Kernel ID check is disabled. [ngourlay@doha-daily ~]$

Tue Nov 18 07:07:17 2008 MARCB [...] cpan.org - Correspondence added

Hi Nigel, thanks a lot for the report. I don't think it really dies (the "uninitialized" error is merely a warning), but it can't parse the line obtained from lsof. And that line looks strange to me, because it begins with the letter "g", whereas according to the lsof man page all lines should begin either with a "p" or an "f". Could you do the following to help me fix it: 1.) Run the lsof command from the command line with the options that you used with Unix::Lsof, and send me the output. 2.) Run the command again, but also specify the option -F0gRcuL and send me the output. 3.) Call Unix::Lsof in your perl script in scalar mode and send me the Data::Dumper output of the result object. e.g. use Unix::Lsof; use Data::Dumper; my $r=lsof(<your options>); print Dumper $r; Cheers, Marc

Tue Nov 18 07:07:31 2008 The RT System itself - Status changed from 'new' to 'open'

Tue Nov 18 07:31:40 2008 MARCB [...] cpan.org - Correspondence added

Hi Nigel, umm, sorry, what I said in my last email was wrong, of course it dies (too decaffeinated to read my own code just now;-). So 3. won't work, unless you change line 176 of Unix/Lsof.pm from _idie("Can't parse line $line"); to _iwarn("Can't parse line $line"); first. Cheers, Marc

Tue Mar 17 09:48:40 2009 MARCB [...] cpan.org - Correspondence added

Hi, this bug should now be fixed, please also see https://rt.cpan.org/Ticket/Display.html?id=43394 Cheers, Marc

Tue Mar 17 09:48:42 2009 MARCB [...] cpan.org - Status changed from 'open' to 'resolved'

Tue Mar 17 09:49:01 2009 MARCB [...] cpan.org - Broken in v0.0.5 added

Tue Mar 17 09:49:01 2009 MARCB [...] cpan.org - Fixed in 0.0.6 added