compiz crashed with SIGSEGV in af_latin_hints_compute_edges()

Bug #965748 reported by Martin Wildam on 2012-03-26
This bug affects 1 person
Affects Status Importance Assigned to Milestone
freetype (Fedora)
freetype (Ubuntu)

Bug Description

Can't exactly tell how to reproduce.

I have changed compiz scale plugin to initiate window picker in the bottom right and window picker for all windows in the top right corner.

In addition left-clicking or right-clicking on the top edge switches desktop (desktop wall plugin) and I have changed to 3 desktops in one row.

After those tweaks (as well as disabling global menus and adding a gnome menu button) I switched desktops and windows by moving mouse cursor and clicking. Then sometimes this crash occurs while switching windows and desktops but can't exactly tell under what exact circumstances.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: unity 5.8.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-20.32-generic-pae 3.2.12
Uname: Linux 3.2.0-20-generic-pae i686
ApportVersion: 1.95-0ubuntu1
Architecture: i386
Date: Mon Mar 26 23:55:03 2012
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120301)
ProcCmdline: compiz
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: unity
Title: compiz crashed with SIGSEGV in FT_Load_Glyph()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

Martin Wildam (mwildam) wrote :

 af_latin_hints_compute_edges (hints=<optimized out>, dim=<optimized out>) at /build/buildd/freetype-2.4.8/freetype-2.4.8/src/autofit/aflatin.c:1229
 af_latin_hints_detect_features (dim=AF_DIMENSION_VERT, hints=0x8d12628) at /build/buildd/freetype-2.4.8/freetype-2.4.8/src/autofit/aflatin.c:1344
 af_latin_hints_detect_features (dim=AF_DIMENSION_VERT, hints=0x8d12628) at /build/buildd/freetype-2.4.8/freetype-2.4.8/src/autofit/autofit.c:36
 af_latin_hints_apply (hints=0x8d12628, outline=0x8d12710, metrics=0x9fc0400) at /build/buildd/freetype-2.4.8/freetype-2.4.8/src/autofit/aflatin.c:2257
 af_loader_load_g (loader=0x8d1261c, scaler=0xab28f6cc, glyph_index=42, load_flags=68097, depth=0) at /build/buildd/freetype-2.4.8/freetype-2.4.8/src/autofit/afloader.c:178

Changed in unity (Ubuntu):
importance: Undecided → Medium
summary: - compiz crashed with SIGSEGV in FT_Load_Glyph()
+ compiz crashed with SIGSEGV in af_latin_hints_compute_edges()
tags: removed: need-i386-retrace
visibility: private → public
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in unity (Ubuntu):
status: New → Confirmed
Sebastien Bacher (seb128) wrote :

Thank you for your bug report, that's not an unity bug, there are similar bugs on other components, is similar and triagers there reassigned from the apps to pango, which seems a guess...

Reassigning to freetype guessing as well since that's where the segfault happens but it could well be due to pango or something else

affects: unity (Ubuntu) → freetype (Ubuntu)
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