Bug 692517 - Regression: seg fault reading PostScript file
Summary: Regression: seg fault reading PostScript file
Status: NOTIFIED FIXED
Alias: None
Product: Ghostscript
Classification: Unclassified
Component: General (show other bugs)
Version: master
Hardware: PC All
: P2 normal
Assignee: Michael Vrhel
URL:
Keywords:
: 691652 (view as bug list)
Depends on:
Blocks:
 
Reported: 2011-09-19 18:21 UTC by Marcos H. Woehrmann
Modified: 2011-10-02 01:43 UTC (History)
1 user (show)

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Customer: 850
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Description Marcos H. Woehrmann 2011-09-19 18:21:22 UTC 
Ghostscript master (13028e7b90) seg faults when reading the attached PostScript file.  Older versions of Ghostscript (e.g. 8.54), Apple Preview, and Adobe Acrobat open the file without problem.

The command line I'm using:

  bin/gs -sDEVICE=ppmraw -o test.ppm ./58756.PS

I'm bisecting to find the responsible revision now.
Comment 2 Marcos H. Woehrmann 2011-09-20 00:10:21 UTC 
The seg faults started with commit 6a82ae29ea4826048fc923388f4f59823e3a55c6:

Merge: 254698b 53e03bb
Author: Michael Vrhel <michael.vrhel@artifex.com>
Date:   Mon May 24 16:31:58 2010 +0000

    Merge of icc_work branch into trunk.
Comment 3 Michael Vrhel 2011-09-20 04:46:21 UTC 
Interesting the icc table in the clist is screwed up for some reason.  Digging further into this now
Comment 4 Michael Vrhel 2011-09-20 05:06:09 UTC 
Even more strange.  What we have is a pattern that is a clist.  Its icc_table which is stored in the clist is correctly read back.  Later during a memcpy during an install of an Halftone it is corrupted though.  I will dig more into this tomorrow.
Comment 5 Michael Vrhel 2011-09-21 00:01:12 UTC 
Fixed with 

http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=36925c8f0864e8ecd54625011696d4bcdbc26fcc

issue was that a restore was blowing away the icc_table.  The table needed to allocated in stable memory so that it remains present in the presence of save and restore operations.
Comment 6 Henry Stiles 2011-09-28 20:27:12 UTC 
*** Bug 691652 has been marked as a duplicate of this bug. ***