Bug 948025 – SocketServer doesn't handle syscall interruption

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Bug 948025 - SocketServer doesn't handle syscall interruption

Summary:	SocketServer doesn't handle syscall interruption

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 6
Classification:	Red Hat
Component:	python (Show other bugs)
Sub Component:
Version:	6.4
Hardware:	All Linux

Priority	high Severity high
Target Milestone:	rc
Target Release:	---
Assigned To:	Robert Kuska
QA Contact:	Jan Kepler
Docs Contact:

URL:
Whiteboard:
Keywords:

Depends On:
Blocks:	835616 960054
	Show dependency tree / graph

Reported:	2013-04-03 15:46 EDT by Jacob Hunt
Modified:	2016-04-18 06:16 EDT (History)
CC List:	5 users (show)

See Also:
Fixed In Version:	python-2.6.6-47.el6
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2013-11-21 04:14:28 EST
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Proposed patch - wrapper for select.select (1.53 KB, patch) 2013-06-24 04:16 EDT, Robert Kuska	no flags	Details \| Diff
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Python	7978	None	None	None	Never
Red Hat Product Errata	RHSA-2013:1582	normal	SHIPPED_LIVE	Moderate: python security, bug fix, and enhancement update	2013-11-20 16:39:43 EST

Groups: None (edit)

Description Jacob Hunt 2013-04-03 15:46:55 EDT

Description of problem:

SocketServer's handle_request function uses "select" call to handle io, but sending POSIX signal will result in 'Interrupted system call' exception raised.

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

python-2.6.6-36.el6.x86_64

Comment 2 Jay Hilliard 2013-04-03 16:39:41 EDT

This is the old dreaded EINTR bug

Further details can be found here
http://bugs.python.org/issue7978
It's fixed in Python 2.7
http://hg.python.org/cpython/rev/97a0c6230ece/

The impact on us is that all our users are getting intermittent crashes in various applications. It's hurting our workflow.

Comment 6 Robert Kuska 2013-06-24 04:16:04 EDT

Created attachment 764491 [details]
Proposed patch - wrapper for select.select

Comment 9 errata-xmlrpc 2013-11-21 04:14:28 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.

http://rhn.redhat.com/errata/RHSA-2013-1582.html

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