Forum: Ruby-core [Ruby 1.8 - Bug #7428][Open] Segmentation Fault generated by library1.8.so.1.8.7 on Ubuntu 11.04,

Issue #7428 has been reported by agenerette (Anthony Generette).

----------------------------------------
Bug #7428: Segmentation Fault generated by library1.8.so.1.8.7 on Ubuntu 
11.04,
https://bugs.ruby-lang.org/issues/7428

Author: agenerette (Anthony Generette)
Status: Open
Priority: Urgent
Assignee:
Category: lib
Target version: Ruby 1.8.7
ruby -v: ruby 1.8.7 (2012-10-12 patchlevel 371) [i686-linux]


I am new to so many things: Linux, Ruby, bugs.ruby-lang,

'Not sure if anyone here will be able to help, but I'm having trouble 
with a set of scripts erroring out with a Segmentation fault.  Anyone 
who can lend me a bit of help on this issue, I would really like to hear 
from.  I'm marking this issue as urgent because a business-critical 
process in the company that I work for is being blocked by it.

It seems that library.1.8.so.1.8.7 is in some sense the source of my 
trouble, but I'm not sure how to determine:
1.) which precise line is causing the errors.
2.) what steps (package re-installation, etc.) to take to correct the 
problem.

I'm new enough to Ruby that I don't know whether or not there's a way to 
run the script(s) in some sort of debugging mode, but if I could figure 
that out, it might help.

Let me know, if I need to post more information, but here's a bit of 
info. on the host that I've been running the script from:

# ruby -v
ruby 1.8.7 (2012-10-12 patchlevel 371) [i686-linux]
~#

# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 10.04.2 LTS
Release:        10.04
Codename:       lucid
#

# dpkg -l | grep ruby
ii  libdbd-pg-ruby                      0.3.9-1 
Ruby/DBI PostgreSQL driver
ii  libdbd-pg-ruby1.8                   0.3.9-1 
Ruby/DBI PostgreSQL driver for Ruby 1.8
ii  libdbi-ruby1.8                      0.4.3-2 
Database Independent Interface for Ruby 1.8
ii  libdbm-ruby1.8                      1.8.7.249-2 
DBM interface for Ruby 1.8
ii  libdeprecated-ruby1.8               2.0.1-2 
Library for handling deprecated code in Ruby
ii  libopenssl-ruby                     4.2 
OpenSSL interface for Ruby
ii  libopenssl-ruby1.8                  1.8.7.249-2 
OpenSSL interface for Ruby 1.8
ii  libpgsql-ruby1.8                    0.8.0-1.1 
PostgreSQL interface for Ruby 1.8
ii  libruby1.8                          1.8.7.249-2 
Libraries necessary to run Ruby 1.8
ii  ruby                                4.2 
An interpreter of object-oriented scripting
ii  ruby-dev                            4.2 
Header files for compiling extension modules
ii  ruby1.8                             1.8.7.249-2 
Interpreter of object-oriented scripting lan
ii  ruby1.8-dev                         1.8.7.249-2 
Header files for compiling extension modules
rc  rubygems1.8                         1.3.5-1ubuntu2 
package management framework for Ruby librar
#

#tail /var/log/kern.log
...
Nov 23 08:44:01 sf01-dev01 kernel: [31700171.377711] ruby[5907]: 
segfault at f4e82404 ip b773ca27 sp bff6a630 error 7 in 
libruby1.8.so.1.8.7.OLD[b7719000+ce000]

Issue #7428 has been updated by drbrain (Eric Hodel).

Category deleted (lib)
Status changed from Open to Closed
Priority changed from Urgent to Normal

Please do not set Priority.  Your priority and our priority may be 
different, so please respect ours.

http://www.ruby-lang.org/en/news/2011/10/06/plans-for-1-8-7/ says "We 
continue to provide normal maintenance for 1.8.7 as usual, until June 
2012. ... After that we stop bugfixes.". Since it is "after June 2012" 
we must close this.

If you can reproduce this on ruby 1.9.3 or newer please open a new 
ticket.

If you would like to diagnose and fix this yourself compiling a 
debugging version of ruby 1.8.7 and running it under the debugger may 
help.
----------------------------------------
Bug #7428: Segmentation Fault generated by library1.8.so.1.8.7 on Ubuntu 
11.04,
https://bugs.ruby-lang.org/issues/7428#change-33826

Author: agenerette (Anthony Generette)
Status: Closed
Priority: Normal
Assignee:
Category:
Target version: Ruby 1.8.7
ruby -v: ruby 1.8.7 (2012-10-12 patchlevel 371) [i686-linux]


I am new to so many things: Linux, Ruby, bugs.ruby-lang,

'Not sure if anyone here will be able to help, but I'm having trouble 
with a set of scripts erroring out with a Segmentation fault.  Anyone 
who can lend me a bit of help on this issue, I would really like to hear 
from.  I'm marking this issue as urgent because a business-critical 
process in the company that I work for is being blocked by it.

It seems that library.1.8.so.1.8.7 is in some sense the source of my 
trouble, but I'm not sure how to determine:
1.) which precise line is causing the errors.
2.) what steps (package re-installation, etc.) to take to correct the 
problem.

I'm new enough to Ruby that I don't know whether or not there's a way to 
run the script(s) in some sort of debugging mode, but if I could figure 
that out, it might help.

Let me know, if I need to post more information, but here's a bit of 
info. on the host that I've been running the script from:

# ruby -v
ruby 1.8.7 (2012-10-12 patchlevel 371) [i686-linux]
~#

# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 10.04.2 LTS
Release:        10.04
Codename:       lucid
#

# dpkg -l | grep ruby
ii  libdbd-pg-ruby                      0.3.9-1 
Ruby/DBI PostgreSQL driver
ii  libdbd-pg-ruby1.8                   0.3.9-1 
Ruby/DBI PostgreSQL driver for Ruby 1.8
ii  libdbi-ruby1.8                      0.4.3-2 
Database Independent Interface for Ruby 1.8
ii  libdbm-ruby1.8                      1.8.7.249-2 
DBM interface for Ruby 1.8
ii  libdeprecated-ruby1.8               2.0.1-2 
Library for handling deprecated code in Ruby
ii  libopenssl-ruby                     4.2 
OpenSSL interface for Ruby
ii  libopenssl-ruby1.8                  1.8.7.249-2 
OpenSSL interface for Ruby 1.8
ii  libpgsql-ruby1.8                    0.8.0-1.1 
PostgreSQL interface for Ruby 1.8
ii  libruby1.8                          1.8.7.249-2 
Libraries necessary to run Ruby 1.8
ii  ruby                                4.2 
An interpreter of object-oriented scripting
ii  ruby-dev                            4.2 
Header files for compiling extension modules
ii  ruby1.8                             1.8.7.249-2 
Interpreter of object-oriented scripting lan
ii  ruby1.8-dev                         1.8.7.249-2 
Header files for compiling extension modules
rc  rubygems1.8                         1.3.5-1ubuntu2 
package management framework for Ruby librar
#

#tail /var/log/kern.log
...
Nov 23 08:44:01 sf01-dev01 kernel: [31700171.377711] ruby[5907]: 
segfault at f4e82404 ip b773ca27 sp bff6a630 error 7 in 
libruby1.8.so.1.8.7.OLD[b7719000+ce000]