Bug 85372 - 1.14 crash on cairo_stroke, antialias, fractional line width
Summary: 1.14 crash on cairo_stroke, antialias, fractional line width
Status: RESOLVED FIXED
Alias: None
Product: cairo
Classification: Unclassified
Component: image backend (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Mac OS X (All)
: medium critical
Assignee: Chris Wilson
QA Contact: cairo-bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-10-23 15:54 UTC by Matthew Flatt
Modified: 2015-03-07 22:19 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

Attachments
example program that crashes (532 bytes, text/plain)
2014-10-23 15:54 UTC, Matthew Flatt 		Details
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Description Matthew Flatt 2014-10-23 15:54:04 UTC 
Created attachment 108306 [details]
example program that crashes

I get a concistsnt segfault with the enclosed program on 1.14, and not on 1.12.16.

I used OS X, but the crash's stack trace is consistent with one reported by
a Racket user on 64-bit Linux (Debian unstable).

Using a different back end, making the image size smaller, removing the call
to enable antialiasing, removing the line-width adjustment, or dropping one
of the line-tos makes the crash go away for 1.14.
Comment 1 Adrian Johnson 2014-10-26 00:03:46 UTC 
Works with master. Fails with 1.14.0. Looks like this patch fixed it:

http://cgit.freedesktop.org/cairo/commit/?id=2de69581c28bf115852037ca41eba13cb7335976
Comment 2 Bryce Harrington 2015-03-07 22:19:07 UTC 
As per comment #1, this bug is already fixed in trunk and will be included in 1.14.2.

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