Bug 843723

Summary: SIGABRT: Modules/gcmodule.c:275: visit_decref: Assertion > `gc->gc.gc_refs != 0' failed
Product: Red Hat Enterprise Linux 6 Reporter: Jan Hutař <jhutar>
Component: python-psycopg2Assignee: Tom Lane <tgl>
Status: CLOSED ERRATA QA Contact: qe-baseos-daemons
Severity: medium Docs Contact:
Priority: high    
Version: 6.3CC: a.badger, azelinka, devrim, hhorak, jhutar, jpazdziora, parsonsa, patrick.hurrelmann, psklenar, slukasik
Target Milestone: rcKeywords: Patch
Target Release: ---   
Hardware: Unspecified   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: 757302 Environment:
Last Closed: 2013-02-21 03:41:44 EST Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---
Bug Depends On: 757302    
Bug Blocks: 791327    

Description Jan Hutař 2012-07-27 03:50:11 EDT
+++ This bug was initially created as a clone of Bug #757302 +++

Description of problem:
There is a reference leak bug in python-psycopg2. Sadly, I cannot provide
narrow reproducer (without Spacewalk components).

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. Install Spacewalk nightly (PostgreSQL variant) on RHEL5 (or equivalent)
2. Create some non-empty custom channels
3. # /usr/bin/rhn-satellite-exporter --channel=parent-qrywz \
   --channel=child-of-parent-qrywz --dir=/tmp/dump.errata.kgCvf28372

Actual results:
02:51:20 Gathering channel info...
Appending channels ['child-of-parent-qrywz', 'parent-qrywz']
02:51:20 Gathering binary RPM info...
python: Modules/gcmodule.c:275: visit_decref:
Assertion `gc->gc.gc_refs != 0' failed.

Expected results:
Export should pass.

Additional info:

--- Additional comment from slukasik@redhat.com on 2011-11-26 03:27:14 EST ---

Created attachment 536652 [details]
A backtrace

--- Additional comment from slukasik@redhat.com on 2011-11-26 03:29:17 EST ---

Created attachment 536653 [details]
A proposed patch

This problem was actually fixed in upstream. The attached please find
an equivalent of upstream's commit: eaa97def731faa6fb9b17cfe9005d327f6a70341

--- Additional comment from jhutar@redhat.com on 2012-03-15 08:26:59 EDT ---

This was observed also on RHEL6 with python-psycopg2-2.0.14-1.el6_2.1

--- Additional comment from jpazdziora@redhat.com on 2012-07-25 07:57:50 EDT ---

(In reply to comment #3)
> This was observed also on RHEL6 with python-psycopg2-2.0.14-1.el6_2.1

Do we have a RHEL 6 version of this bugzilla?

--- Additional comment from a.badger@gmail.com on 2012-07-25 11:15:15 EDT ---

I don't work with the Python CAPI but a quick look at the patch seems sane.  I also checked that

* This is the only difference between typecast.c in 2.0.14 and typecast.c at the time of the upstream commit.
* The patch is still applied in upstream's current 2.4.4 release.

Devrim, I'll go ahead and apply and build tomorrow unless I hear otherwise from you.
Comment 2 Jan Pazdziora 2012-07-30 11:35:03 EDT
The change fixed the issues for the EPEL 5's python-psycopg2 package. It would be great to see it in RHEL 6 as well.
Comment 12 errata-xmlrpc 2013-02-21 03:41:44 EST
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.