Bug 91683

Summary:	gs (invoked from ggv) eats CPU and RAM, triggers swap storm
Product:	[Fedora] Fedora	Reporter:	Warren Togami <wtogami>
Component:	ghostscript	Assignee:	Tim Waugh <twaugh>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Mike McLean <mikem>
Severity:	high	Docs Contact:
Priority:	medium
Version:	rawhide	CC:	menthos
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2003-12-14 09:24:45 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Warren Togami 2003-05-27 06:57:28 UTC

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4b) Gecko/20030509

Description of problem:
http://www.togami.com/~warren/archive/2003/samsung.pdf

When I attempt to view this PDF using ggv, my laptop became completely locked up
for about a minute as a swap storm ensues in the background.  From a remote ssh
terminal it appeared that a "gs" process using 100% CPU, ate 512MB RAM and was
causing heavy swapping.  Eventually about a minute later memory freed up and the
system became responsive again.  GGV window opened displaying the PDF file.

When you first run ggv, a gs process grows beyond 500MB in memory, using 100%
CPU.  Eventually this subsides and uses 100% CPU with very little RAM usage. 
Then finally the ggv window opens, and for 20 seconds it draws the PDF in the
window from the bottom up.  (1GHz Athlon)

xpdf and kghostview do not take anywhere near this amount of RAM or CPU when
viewing this document.

Version-Release number of selected component (if applicable):
ghostscript-7.07-2
ggv-1.99.97-2

How reproducible:
Always

Steps to Reproduce:
1. Download that PDF.
2. Read it with ggv.
    
Actual Results:  
Carnage ensues.

Expected Results:  
Should be quick like xpdf or kghostview.

Comment 1 Tim Waugh 2003-05-27 14:01:15 UTC

To reproduce the problem outside ggv:

gs -q -dNOPAUSE -dBATCH -dSAFER -dQUIET -sDEVICE=pswrite -sOutputFile=/dev/null
-f samsung.pdf

Comment 2 Warren Togami 2003-07-15 23:03:36 UTC

http://www.egovos.org/pdf/dodfoss.pdf
Another PDF which exhibits this problem.

Comment 3 Warren Togami 2003-09-09 06:51:59 UTC

Still broken in latest post-Severn rawhide ghostscript-7.07-10

Comment 4 Warren Togami 2003-12-14 09:24:45 UTC

Both test cases seem to work in ggv with FC1 + all updates.