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Bug 1138751 - shell hangs if setting variable from command that produces more than 120k and is piped
Summary: shell hangs if setting variable from command that produces more than 120k and...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: ksh
Version: 6.5
Hardware: Unspecified
OS: Unspecified
urgent
urgent
Target Milestone: rc
: ---
Assignee: Michal Hlavinka
QA Contact: Martin Kyral
URL:
Whiteboard:
: 1138590 (view as bug list)
Depends On:
Blocks: 1148830 1148831 1159926
TreeView+ depends on / blocked
 
Reported: 2014-09-05 14:41 UTC by Filip Krska
Modified: 2018-12-09 18:30 UTC (History)
8 users (show)

Fixed In Version: ksh-20120801-22.el6
Doc Type: Bug Fix
Doc Text:
Previously, the KornShell became unresponsive when setting a variable from a command that produced more than 120 k and was then piped. A patch has been applied to fix this bug, and KornShell now executes commands correctly.
Clone Of:
: 1141243 1148830 1148831 (view as bug list)
Environment:
Last Closed: 2015-07-22 06:55:57 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
patch to fix this (1.77 KB, patch)
2014-09-16 08:05 UTC, Michal Hlavinka 		no flags Details | Diff
patch to fix this v2 (1.76 KB, text/plain)
2014-09-16 14:38 UTC, Michal Hlavinka 		no flags Details
patch to fix this v3 (1.14 KB, patch)
2014-09-18 13:47 UTC, Michal Hlavinka 		no flags Details | Diff
Show Obsolete (2) View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2015:1450 0 normal SHIPPED_LIVE ksh bug fix update 2015-07-20 18:43:49 UTC

Description Filip Krska 2014-09-05 14:41:25 UTC 
Description of problem:

release fixing Bug 1062296 hangs on reproducer with added pipe

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

ksh-20120801-10.el6_5.9

How reproducible:

Always

Steps to Reproduce:
1. HANG=`dd if=/dev/zero bs=1k count=117 2>/dev/null|cat`
2.
3.

Actual results:

Command hangs

Expected results:

Command executes correctly

Additional info:

ksh-20120801-10.el6 doesn't reproduce => regression
Comment 4 Michal Hlavinka 2014-09-12 13:51:54 UTC 
reproducible, around one of eight times it hangs
Comment 5 Michal Hlavinka 2014-09-16 08:05:38 UTC 
Created attachment 937901 [details]
patch to fix this
Comment 9 Michal Hlavinka 2014-09-16 14:38:11 UTC 
Created attachment 938046 [details]
patch to fix this v2
Comment 10 Michal Hlavinka 2014-09-16 16:52:38 UTC 
*** Bug 1138590 has been marked as a duplicate of this bug. ***
Comment 15 Michal Hlavinka 2014-09-18 13:47:20 UTC 
Created attachment 938914 [details]
patch to fix this v3
Comment 22 Branislav Náter 2014-10-02 11:43:54 UTC 
Reproducer available qa_ack+
Comment 28 errata-xmlrpc 2015-07-22 06:55:57 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/RHBA-2015-1450.html
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