[Jcaptcha-users] SIGSEGV on linux + java 1.5 update-7

[Enis S. <eni...@gm...>]

Hi,

I am getting a SIGSEGV pretty frequently(one in every 10 or so) using
default settings given in "5 minutes application integration tutorial".
The issue has been brought up before in :
http://sourceforge.net/mailarchive/message.php?msg_id=fde284ef0607141227h1146e8e1v7eb00e50f2e19ec%40mail.gmail.com

but it still remains in 1.0-RC6.

I do not know if this is a jcaptcha or a jvm or a libfontmanager bug,
but i want to bring into attention.

The error log i see is given below(with some parts omitted) :

#
# An unexpected error has been detected by HotSpot Virtual Machine:
#
#  SIGSEGV (0xb) at pc=0xb0275b5d, pid=18227, tid=2973883280
#
# Java VM: Java HotSpot(TM) Client VM (1.5.0_07-b03 mixed mode, sharing)
# Problematic frame:
# C  [libfontmanager.so+0x33b5d]
#

---------------  T H R E A D  ---------------

Current thread (0x0851a518):  JavaThread "btpool0-7" [_thread_in_native,
id=18246]

siginfo:si_signo=11, si_errno=0, si_code=1, si_addr=0x098e18ff

Registers:
EAX=0x00e20127, EBX=0xb02c35a8, ECX=0x5adff49e, EDX=0x08ac17d8
ESP=0xb141be24, EBP=0xb141be30, ESI=0x08abc688, EDI=0x08abc6bc
EIP=0xb0275b5d, CR2=0x098e18ff, EFLAGS=0x00210206

Top of Stack: (sp=0xb141be24)
0xb141be24:   00000000 08abc7e4 08ac17d8 b141be50
0xb141be34:   b0276cc6 b141be78 b266db4e 00000000
0xb141be44:   00000000 b02c7ac0 b141bf28 b141bfb0
0xb141be54:   b027704e b141be78 08abdea0 08abdf12
0xb141be64:   b79f9bcc b141c008 b141bfe8 b141be90
0xb141be74:   b141be78 08ac037c 08ac037c 08ac037c
0xb141be84:   40000000 40000000 00004000 08b9a100
0xb141be94:   00000104 08abc7e8 08abc8ec 08abc7e8

Instructions: (pc=0xb0275b5d)
0xb0275b4d:   79 02 eb 1a 83 6d f8 04 8b 55 f8 8b 02 8b 55 fc
0xb0275b5d:   80 34 10 01 8b 45 f4 48 98 89 45 f4 eb dd 8b 45

Stack: [0xb139d000,0xb141e000),  sp=0xb141be24,  free space=507k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code,
C=native code)
C  [libfontmanager.so+0x33b5d]
C  [libfontmanager.so+0x34cc6]
C  [libfontmanager.so+0x3504e]
C  [libfontmanager.so+0x371b2]
C  [libfontmanager.so+0x35892]
C  [libfontmanager.so+0x35d8d]
C  [libfontmanager.so+0x2248d]
C  [libfontmanager.so+0x2412f]
C  [libfontmanager.so+0x4b21e]  Java_sun_font_FileFont_getGlyphMetrics+0x176
j  sun.font.FileFont.getGlyphMetrics(JILjava/awt/geom/Point2D$Float;)V+0
j
sun.font.FileFontStrike.getGlyphMetrics(I)Ljava/awt/geom/Point2D$Float;+218
j
sun.font.StandardGlyphVector$GlyphStrike.addDefaultGlyphAdvance(ILjava/awt/geom/Point2D$Float;)V+5
j  sun.font.StandardGlyphVector.initPositions()V+106
j
sun.font.StandardGlyphVector.getLogicalBounds()Ljava/awt/geom/Rectangle2D;+5
j
java.awt.Font.getStringBounds([CIILjava/awt/font/FontRenderContext;)Ljava/awt/geom/Rectangle2D;+168
j
java.awt.Font.getStringBounds(Ljava/text/CharacterIterator;IILjava/awt/font/FontRenderContext;)Ljava/awt/geom/Rectangle2D;+175
j
com.octo.captcha.component.image.textpaster.ChangeableAttributedString.<init>(Ljava/awt/Graphics2D;Ljava/text/AttributedString;I)V+167
j
com.octo.captcha.component.image.textpaster.DecoratedRandomTextPaster.pasteText(Ljava/awt/image/BufferedImage;Ljava/text/AttributedString;)Ljava/awt/image/BufferedImage;+56
j
com.octo.captcha.component.image.wordtoimage.ComposedWordToImage.pasteText(Ljava/awt/image/BufferedImage;Ljava/text/AttributedString;)Ljava/awt/image/BufferedImage;+6
j
com.octo.captcha.component.image.wordtoimage.DeformedComposedWordToImage.getImage(Ljava/lang/String;)Ljava/awt/image/BufferedImage;+131
j
com.octo.captcha.image.gimpy.GimpyFactory.getImageCaptcha(Ljava/util/Locale;)Lcom/octo/captcha/image/ImageCaptcha;+25
j
com.octo.captcha.engine.image.ListImageCaptchaEngine.getNextImageCaptcha(Ljava/util/Locale;)Lcom/octo/captcha/image/ImageCaptcha;+5
j
com.octo.captcha.engine.image.ImageCaptchaEngine.getNextCaptcha(Ljava/util/Locale;)Lcom/octo/captcha/Captcha;+2
j
com.octo.captcha.service.AbstractCaptchaService.generateAndStoreCaptcha(Ljava/util/Locale;Ljava/lang/String;)Lcom/octo/captcha/Captcha;+5
j
com.octo.captcha.service.AbstractManageableCaptchaService.generateCountTimeStampAndStoreCaptcha(Ljava/lang/String;Ljava/util/Locale;)Lcom/octo/captcha/Captcha;+34
j
com.octo.captcha.service.AbstractManageableCaptchaService.generateAndStoreCaptcha(Ljava/util/Locale;Ljava/lang/String;)Lcom/octo/captcha/Captcha;+59
j
com.octo.captcha.service.AbstractCaptchaService.getChallengeForID(Ljava/lang/String;Ljava/util/Locale;)Ljava/lang/Object;+63
j
com.octo.captcha.service.image.AbstractManageableImageCaptchaService.getImageChallengeForID(Ljava/lang/String;Ljava/util/Locale;)Ljava/awt/image/BufferedImage;+3
j


[deleted]


---------------  S Y S T E M  ---------------

OS:lenny/sid

uname:Linux 2.6.22-14-386 #1 Tue Feb 12 07:12:19 UTC 2008 i686
libc:glibc 2.6.1 NPTL 2.6.1
rlimit: STACK 8192k, CORE 0k, NPROC 10175, NOFILE 1024, AS infinity
load average:4.44 3.51 3.07

CPU:total 1 family 15, cmov, cx8, fxsr, mmx, sse, sse2, ht

Memory: 4k page, physical 1287836k(31344k free), swap 1951852k(893556k free)

vm_info: Java HotSpot(TM) Client VM (1.5.0_07-b03) for linux-x86, built
on May  3 2006 01:46:28 by java_re with gcc 3.2.1-7a (J2SE release)