Bug 688680

Summary:	VMerror in image and segfault
Product:	Ghostscript	Reporter:	Ralph Giles <ralph.giles>
Component:	Graphics Library	Assignee:	Stefan Kemper <stefan.kemper>
Status:	NOTIFIED DUPLICATE
Severity:	normal
Priority:	P2
Version:	master
Hardware:	PC
OS:	Linux
Customer:	580	Word Size:	---

Description Ralph Giles 2006-04-27 13:26:49 UTC

Customer reports files do not display at 72 dpi or at 20 dpi (but does work at
1bpp and 20 dpi).

I have confirmed with HEAD. Parsing an image in the file results in two calls to
gs_heap_alloc_bytes() requesting 2GB. This fails and is reported as:

   **** Warning: File encountered 'VMerror' error while processing an image.

Several objects later, gs segfaults in gstate_free_contents(). So there may be
two bugs here: whatever's generating the spurious allocation request, and not
handling its failure cleanly.

Comment 1 Ralph Giles 2006-04-27 13:28:24 UTC

Created attachment 2180 [details]
sl08jan2006in023.pdf

first problem example

Comment 2 Ralph Giles 2006-04-27 13:33:17 UTC

Created attachment 2181 [details]
stl12dec2005re002.pdf

second example file

Comment 3 Ralph Giles 2006-05-03 10:02:50 UTC

We believe this is another example of the pattern accumulator issue. q.v. Bug
#688396. The resolution is to avoid using the accumulator when the pattern is
larger than a certain size.

Embedding patterns as high level objects in the clist will help when using the
clist, but the accumulator change is still necessary for display devices, etc.
See details attached to 396.

*** This bug has been marked as a duplicate of 688396 ***

Comment 4 Marcos H. Woehrmann 2011-09-18 21:47:41 UTC

Changing customer bugs that have been resolved more than a year ago to closed.