Bug 1121204

Summary:	ksh hangs with big data in pipe in command substitution
Product:	[Fedora] Fedora	Reporter:	Michal Hlavinka <mhlavink>
Component:	ksh	Assignee:	Michal Hlavinka <mhlavink>
Status:	CLOSED RAWHIDE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	rawhide	CC:	gkaukola, kdudka, mhlavink
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	ksh-20120801-22.fc23	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-02-27 11:44:20 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:

Description Michal Hlavinka 2014-07-18 15:54:31 UTC

Description of problem:
  dd if=/dev/zero of=testfile.txt bs=1 count=65537
  x=`cat testfile.txt | cat -`

hang

Comment 1 Glen Kaukola 2014-07-18 16:29:55 UTC

Does not hang for me on Fedora 20.  ksh-20120801-17.fc20.x86_64.

Comment 2 Michal Hlavinka 2014-07-21 06:41:25 UTC

This is just for a future reference so I don't forget to test this bug. In fact, there is different bug that was fixed upstream, but it has this regression. So when the fix for that other bug is backported, we will have to fix this too.