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Bug 39041

Summary: Tethereal 0.10.0a segmentation fault
Product: Gentoo Linux Reporter: Alberto Garcia Hierro (Skyhusker) <tcpdevil>
Component: Current packagesAssignee: PPC Porters <ppc>
Severity: normal CC: gentoo
Priority: High    
Version: unspecified   
Hardware: All   
OS: All   
Package list:
Runtime testing required: ---
Bug Depends on: 45399    
Bug Blocks:    

Description Alberto Garcia Hierro (Skyhusker) 2004-01-22 08:26:10 UTC
Tethereal 0.10.0a (from Ethereal 0.10.0a) fails with segmentation fault in my iBook G4. It works perfectly in my x86 box.

Actual Results:
americana root # tethereal
Segmentation fault

Expected Results:
No errors ;-)

Emerge Info Output:

americana root # emerge info
Portage 2.0.50_pre19 (default-ppc-1.4, gcc-3.2.3, glibc-2.3.2-r9, 2.6.1-benh1)
System uname: 2.6.1-benh1 ppc 7455, altivec supported
Gentoo Base System version
Autoconf: sys-devel/autoconf-2.59
Automake: sys-devel/automake-1.7.8
CFLAGS="-O2 -pipe -mcpu=7450 -maltivec -mabi=altivec"
CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3.2/share/config /usr/kde/3/share/config /usr/share/config /usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/ /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/share/texmf/xdvi/ /var/lib/pbbuttonsd /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d"
CXXFLAGS="-O2 -pipe -mcpu=7450 -maltivec -mabi=altivec"
FEATURES="ccache fixpackages"
USE="X aalib alsa altivec arts berkdb cdr crypt cscope cups dga dvd encode fbcon flash foomaticdb gd gdbm gif gphoto2 gpm gtk gtk2 imagemagick imap imlib innodb ipv6 java javascript joystick jpeg kde lame lcms libwww mad maildir mitshm motif mpeg ncurses net nls oggvorbis opengl oss pam perl png ppc python qt qtmt radeon readline samba sdl slang socks5 spell ssl tcpd tetex tiff truetype usb vim-with-x xml xml2 xv xvid zlib linguas_es"
Comment 1 Alberto Garcia Hierro (Skyhusker) 2004-01-22 08:28:40 UTC
Strace here:
Comment 2 Barry Myles 2004-01-24 12:46:05 UTC
Does 0.9.16 do the same thing?
Comment 3 Alberto Garcia Hierro (Skyhusker) 2004-01-25 08:24:46 UTC
americana root # tethereal -v
tethereal 0.9.16
Compiled with GLib 2.2.3, with libpcap 0.8, with libz 1.2.1,
without UCD-SNMP or Net-SNMP, without ADNS
Running with libpcap version 0.8 on Linux 2.6.1-benh1
americana root # tethereal
Segmentation fault
Comment 4 Barry Myles 2004-01-27 13:42:16 UTC
As this bug wasn't going anywhere I've posted the information here on the ethereal-dev mailing list in case someone there might be able to help.
Comment 5 Barry Myles 2004-01-28 02:11:03 UTC
Looking at Guy Harris's reply to my question on ethereal-dev he wants a strack trace rather than a system trace. Can you do this?
Comment 6 Luca Barbato gentoo-dev 2004-01-28 18:40:38 UTC
- run the app from gdb and paste the stack trace (backtrace)

gdb [app]

press r and then bt

- alternatively enable core dumping and make gdb read it

ulimit -c unlimited


gdb [app] corefile


Comment 7 Barry Myles 2004-02-09 03:42:01 UTC
Could you try the ebuild over in bug 40660 and see if that cures the problem? It may do or may not.
Comment 8 Olivier Castan 2004-02-13 04:38:11 UTC
I have the same problem of segfault.
I've tried to rebuild ethereal to get debug informations using :
CFLAGS="-O2 -pipe -mcpu=7400 -maltivec -mabi=altivec -g" FEATURES="noclean nostrip" emerge ethereal
but I wasn't able to complete the build, getting an "Internal compiler error"...
Removing -mabi=altivec :
CFLAGS="-O2 -pipe -mcpu=7400 -maltivec -g" FEATURES="noclean nostrip" emerge ethereal
The build succeeded and tethereal does not segfault anymore. Rebuilding without debug :
CFLAGS="-O2 -pipe -mcpu=7400 -maltivec" emerge ethereal
gives a perfectly working tethereal
I've already encountered exactly the same problems (1. -mabi=altivec and -g incompatibility, 2. removing -mabi=altivec solves the problem) as I have reported in bug #36127. It looks like a general problem in gcc with Altivec extensions for ABI... Should I fill a new bug for this ?
Concerning ethereal doing "filter-flags -mabi-altivec" should solve the problem.
Comment 9 Alberto Garcia Hierro (Skyhusker) 2004-03-22 07:38:01 UTC
Works flawlessly with gcc 3.3.3. Seems a gcc problem instead of an ethereal problem.
Comment 10 Luca Barbato gentoo-dev 2004-03-22 08:15:19 UTC
reopened, gcc-3.3.3 isn't yet stable enough to be put even on ~ppc
Comment 11 Alberto Garcia Hierro (Skyhusker) 2004-06-17 08:22:08 UTC
gcc-3.3.3_pre20040408 is now stable, I think we can close this bug.
Comment 12 Luca Barbato gentoo-dev 2004-10-19 05:07:13 UTC