Bug 1313259

Summary: Upstream tests cause building python package on brew stall and leave orphan processes that need manually kill
Product: Red Hat Enterprise Linux 7 Reporter: Xibo Ning <xning>
Component: pythonAssignee: Charalampos Stratakis <cstratak>
Status: CLOSED ERRATA QA Contact: Branislav Náter <bnater>
Severity: unspecified Docs Contact:
Priority: high    
Version: 7.2CC: cstratak, isenfeld, lmiksik, ovasik, pviktori, torsava
Target Milestone: rcKeywords: Patch
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: python-2.7.5-36.el7 Doc Type: Bug Fix
Doc Text:
Cause: In TestForkInThread test case from test_thread.py upstream test suite, sys.exit(0) is used instead of os._exit(0). Consequence: Zombie processes are left behind which leave brew builds hanging. Fix: Apply upstream patch to change the TestForkInThread test case Result: Brew builds are not hanging.
 Story Points: ---
Clone Of:
: 1365200 (view as bug list) Environment:
Last Closed: 2016-11-03 20:16:16 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1295829    
Attachments:
Description Flags
demo program emulate mock
none
demo program emulate rpmbuild none

Description Xibo Ning 2016-03-01 09:28:54 UTC 
Description of problem:
The following upstream tests, because of bug 1313148, will cause building python package on brew stall and leave orphan processes that need manually kill
test___all__
test_asynchat
test_tcl
test_tk
test_ttk_guionly
test_ttk_textonly

Version-Release number of selected component (if applicable):
python >= 2.7
python >= 3.4



Additional info
The origin issue that report the problem is here
https://engineering.redhat.com/rt/Ticket/Display.html?id=374328
Comment 2 Xibo Ning 2016-03-01 12:25:01 UTC 
Here is a demo to verify why the bug 1313148 make brew building python package trouble. The demo files in the attachment.

Please run the demo as following
1. need a rhel7/centos7/fedora23 system
2. install python2 tinter module
3. download the two program to temporary directory
4. have the two program executable
5. run the cntl.py
6. if emulate mock-1.1.16, you need manually kill the cntl.py process
7. verify that there is an orphan process
Comment 3 Xibo Ning 2016-03-01 12:27:52 UTC 
Created attachment 1131897 [details]
demo program emulate mock
Comment 4 Xibo Ning 2016-03-01 12:28:36 UTC 
Created attachment 1131898 [details]
demo program emulate rpmbuild
Comment 6 Charalampos Stratakis 2016-03-12 14:22:15 UTC 
*** Bug 1313148 has been marked as a duplicate of this bug. ***
Comment 12 errata-xmlrpc 2016-11-03 20:16:16 UTC 
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.

https://rhn.redhat.com/errata/RHSA-2016-2586.html