Bugzilla Bug 141502

yelp crashes every time right after it is started on all my 3 gentoo boxes: two
i686 and amd64.
Here is backtrace:

This GDB was configured as "i686-pc-linux-gnu"...Using host libthread_db
library "/lib/libthread_db.so.1".

gdb> run
[Thread debugging using libthread_db enabled]
[New Thread -1227708752 (LWP 21254)]
settings_update
yelp_doc_info_get
  uri     = "x-yelp-toc:"
yelp_doc_info_new
  uri      = "x-yelp-toc:"
  full_uri = "x-yelp-toc:"
  doc_uri  = "file:///usr/share/yelp/toc.xml"
yelp_doc_add_uri
  uri      = "file:///usr/share/yelp/toc.xml"
  num_uris = 1
  max_uris = 8
yelp_doc_add_uri
  uri      = "x-yelp-toc:"
  num_uris = 2
  max_uris = 8
[New Thread -1230144592 (LWP 21260)]
Yelper ctor [0x8113870]
[New Thread -1258988624 (LWP 21261)]
yelp_window_load
  uri = "x-yelp-toc:"
yelp_doc_info_get
  uri     = "x-yelp-toc:"
window_do_laod
toc_pager_process
pager_start_cb
  page_id="index"
yelp_doc_info_get
  uri     = "file:///usr/share/gnome/help/gnome-doc-xslt/C/gnome-doc-xslt.xml"
yelp_doc_info_new
  uri      = "file:///usr/share/gnome/help/gnome-doc-xslt/C/gnome-doc-xslt.xml"

Program received signal SIG33, Real-time event 33.
[Switching to Thread -1258988624 (LWP 21261)]
Error while running hook_stop:
Invalid type combination in ordering comparison.
0xffffe410 in __kernel_vsyscall ()
gdb> backtrace
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb702ffac in pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib/libpthread.so.0
#2  0xb705ed35 in PR_Lock () from /usr/lib/nspr/libnspr4.so.6
#3  0xb4f553a0 in ?? ()
#4  0xb7fd3fd4 in ?? () from /lib/ld-linux.so.2
#5  0xb7030953 in pthread_getspecific () from /lib/libpthread.so.0
#6  0x00000000 in ?? ()

emerge --info:
Portage 2.1-r1 (default-linux/x86/2006.0, gcc-3.4.6, glibc-2.3.6-r4,
2.6.16-gentoo-r13 i686)
=================================================================
System uname: 2.6.16-gentoo-r13 i686 AMD Duron(tm) Processor
Gentoo Base System version 1.6.15
distcc 2.18.3 i686-pc-linux-gnu (protocols 1 and 2) (default port 3632)
[disabled]
app-admin/eselect-compiler: [Not Present]
dev-lang/python:     2.4.3-r1
dev-python/pycrypto: 2.0.1-r5
dev-util/ccache:     [Not Present]
dev-util/confcache:  [Not Present]
sys-apps/sandbox:    1.2.17
sys-devel/autoconf:  2.13, 2.59-r7
sys-devel/automake:  1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2
sys-devel/binutils:  2.16.1-r3
sys-devel/gcc-config: 1.3.13-r3
sys-devel/libtool:   1.5.22
virtual/os-headers:  2.6.11-r2
ACCEPT_KEYWORDS="x86"
AUTOCLEAN="yes"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-march=athlon-tbird -O2 -pipe -fomit-frame-pointer"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config
/usr/kde/3.5/shutdown /usr/share/X11/xkb /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/"
CONFIG_PROTECT_MASK="/etc/env.d /etc/gconf /etc/revdep-rebuild /etc/terminfo"
CXXFLAGS="-march=athlon-tbird -O2 -pipe -fomit-frame-pointer"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoconfig distlocks metadata-transfer nostrip sandbox sfperms
strict"
GENTOO_MIRRORS="http://distfiles.gentoo.org
http://distro.ibiblio.org/pub/linux/distributions/gentoo"
LINGUAS="en_CA ru_RU fr_CA"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress
--force --whole-file --delete --delete-after --stats --timeout=180
--exclude='/distfiles' --exclude='/local' --exclude='/packages'"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="x86 3dnow 3dnowext X a52 aac aalib accessibility acpi alsa amuled apache2
arts artswrappersuid artworkextra audiofile avi bash-completion berkdb
bitmap-fonts bzip2 cairo cdr cli cpudetection crypt css cups curl dbus dlloader
doc dri dv dvd dvdr dvdread eds emboss emoticon encode esd exif fam fame fat
fbcon ffmpeg firefox foomaticdb fortran gdbm gif gimp glibc-omitfp gmp gnome
gphoto2 gpm gstreamer gtk gtk2 gtkhtml hal hddtemp hfs icc idn ieee1394 imap
imlib ipv6 isdnlog java javascript jfs jpeg kde kdeenablefinal kqemu lcms
libcaca libg++ libwww live lm_sensors mad maildir matrox mikmod mjpeg mmx
mmxext mng motif mp3 mp4live mpeg mpeg2 msn multiuser nautilus ncurses network
new-login nforce2 nls nptl nptlonly nsplugin ntfs nvidia offensive ogg opengl
oss pam pango pcre pdf pdflib perl pmu png ppds pppd python qmail qt qt3 qt4
quicktime rar readline real reflection reiser4 reiserfs remote samba scanner
sdl sensord session sms softmmu speech spell spl sse sse-filters sse2 ssl
symlink tcpd theora thesaurus tiff truetype truetype-fonts type1-fonts udev
unicode usb vcd vim-with-x vorbis wifi win32codecs wma xine xml xml2 xmms xorg
xscreensaver xv zeroconf zlib elibc_glibc input_devices_keyboard
input_devices_mouse kernel_linux linguas_en_CA linguas_ru_RU linguas_fr_CA
userland_GNU video_cards_nvidia video_cards_nv video_cards_vesa
video_cards_vga"
Unset:  CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS,
MAKEOPTS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY

Could you try rebuilding yelp with USE=debug, FEATURES=nostrip and CFLAGS="-02
-pipe -g" to provide a more helpful trace ?

Did you build against Firefox (I see the firefox use flag, just checking)? Does
firefox show any issues?

>>Did you build against Firefox (I see the firefox use flag, just checking)? Does
firefox show any issues?
It was built against firefox and I dont have any problems with firefox.
I rebuilt yelp with USE="firefox debug" and CFLAGS="-02 -pipe -g". However the
backtrace looks exactly the same.

I also rebuilt glibc and nspr with USE="firefox debug" and CFLAGS="-02 -pipe
-g".
Here is new backtrace:
Program received signal SIG33, Real-time event 33.
[Switching to Thread -1258955856 (LWP 23683)]
0xffffe410 in __kernel_vsyscall ()
(gdb) backtrace
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7014ecc in pthread_cond_timedwait@@GLIBC_2.3.2 () at
pthread_cond_timedwait.S:175
#2  0xb7042a64 in pt_TimedWait (cv=0x81100b4, ml=0x8110050, timeout=1153694837)
at ptsynch.c:280
#3  0xb7043270 in PR_WaitCondVar (cvar=0x81100b0, timeout=9546) at
ptsynch.c:407
#4  0xb6dbf2ae in nsIThread::IsMainThread () from
/usr/lib/mozilla-firefox/libxpcom_core.so
#5  0xb6dbd1ab in nsIThread::IsMainThread () from
/usr/lib/mozilla-firefox/libxpcom_core.so
#6  0xb7049f18 in _pt_root (arg=0x8354a68) at ptthread.c:220
#7  0xb7012380 in start_thread (arg=0xb4f5dbb0) at pthread_create.c:261
#8  0xb6eacf4e in clone () from /lib/libc.so.6

sorry for not spotting this earlier, but Yelp isn't segfaulting in your
backtraces, it's just waiting for a signal to be sent.

Could you execute "handle SIG33 nostop noprint" in the gdb prompt before
executing "run" ? Thanks.

Here is backtrace. However I can only reproduce this bug if glibc is compiled
with CFLAGS="-march=athlon-tbird -O2 -pipe". If it is compiled with CFLAGS="-O2
-pipe -g" then yelp works fine.

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1227872592 (LWP 24838)]
Error while running hook_stop:
Invalid type combination in ordering comparison.
0xb746d330 in ORBit_free_T () from /usr/lib/libORBit-2.so.0
gdb> bt
#0  0xb746d330 in ORBit_free_T () from /usr/lib/libORBit-2.so.0
gdb>

If you have some time to rebuild glibc one more time, could you try with
-march=athlon instead of athlon-tbird ?

Thanks

Mmm, that free() from ORBit may be related to a bug in at-spi that was fixed
around version 1.7.8 and is partially fixed with the patch from bug #132019. So
another suggestion would be to try emerging the latest at-spi (1.7.10) and see
if yelp keeps crashing afterwards.

If I recompile glibc with -march=athlon I still get this problem.
However after I emerged at-spi-1.7.10 I could not reproduce this bug anymore.

(In reply to comment #8)
> If I recompile glibc with -march=athlon I still get this problem.
> However after I emerged at-spi-1.7.10 I could not reproduce this bug anymore.
> 

I can confirm that upgrading from at-spi-1.7.7-r1 to 1.7.10 (and 1.7.11) fixed
this bug for me (amd64). I can supply emerge --info if necessary. :)

I've entered bug #145428 to request 1.7.10 go stable.

at-spi is now stable, marking as fixed.