fontforge crashed with SIGSEGV in SCNumberPoints()

[Samuel Lidén Borell]

Binary package hint: fontforge

It crashed when I tried to generate instructions (Hints->AutoInstr->Nowakowski) on the Bitstream Vera Sans font (included in Ubuntu).

I'm using a pre-release version of Hardy (updated 2007-12-28).

ProblemType: Crash
Architecture: amd64
Date: Sat Dec 29 21:23:51 2007
DistroRelease: Ubuntu 8.04
ExecutablePath: /usr/bin/fontforge
NonfreeKernelModules: cdrom
Package: fontforge 0.0.20071002-1
PackageArchitecture: amd64
ProcCmdline: /usr/bin/fontforge
ProcCwd: /home/samuellb
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=sv_SE.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: fontforge
StacktraceTop:
 ?? () from /usr/lib/fontforge/libfontforge.so.1
 ?? () from /usr/lib/fontforge/libfontforge.so.1
 SCNumberPoints ()
 NowakowskiSCAutoInstr ()
 ?? () from /usr/lib/fontforge/libfontforge.so.1
Title: fontforge crashed with SIGSEGV in SCNumberPoints()
Uname: Linux dv5000 2.6.22-14-generic #1 SMP Sun Oct 14 21:45:15 GMT 2007 x86_64 GNU/Linux
UserGroups: adm admin audio cdrom dialout dip floppy lpadmin netdev plugdev powerdev scanner video
SegvAnalysis:
 Segfault happened at: 0x2ba6b4f4330a: mov 0x10(%rax),%rbx
 PC (0x2ba6b4f4330a) ok
 source "0x10(%rax)" (0x00000010) not located in a known VMA region (needed readable region)!
 destination "%rbx" ok
SegvReason: reading NULL VMA

[Apport retracing service (apport)]

StacktraceTop:_SCRefNumberPoints2 (_rss=0x7ffff61cac80, sc=0x90e210, pnum=30)
_SCRefNumberPoints2 (_rss=0x7ffff61cac80, sc=0x915ad0, pnum=25)
SCNumberPoints (sc=<value optimized out>) at charview.c:3072
NowakowskiSCAutoInstr (gic=0x7ffff61cada0, sc=0x97e790)
FVAutoInstr (fv=0x78cb00, usenowak=1) at fontview.c:5727

[Samuel Lidén Borell (samuellb)]

It seems that the upgrade to Hardy didn't work as it should (probably because I was using a mirrored archive which didn't have the Hardy packages). So this might actually have happened with a version of font-forge from Ubuntu 7.10 .

[Samuel Lidén Borell (samuellb)]

It's reproducable under 8.04 from 2007-12-29

[Vanessa Lee (vanessax)]

The same function crashes intermittently on Lucid.

[dino99 (9d9)]

That version has died long ago; no more supported