Hi, dear developers. I'm experiencing that bug: when i try to convert jpg's files to pdf's, the convert command hangs, and nothing more happens. A pdf is created, but it doesn't growth over of 910 bytes (and is impossible to read, anyway). Step to reproduce: convert file.jpg file.pdf Expected result: a pdf file, with the image in it. Actual result: the convert command hangs, an the pdf file is useless. Its creation seems to block when it reaches 909-914 bytes. I didnt try other versions of imagemagick. I'm going to try just now. I asked to some other people to try (2), and they have the exactly same problem. emerge --info: Portage 2.1.1_pre3 (default-linux/x86/2006.0, gcc-4.1.1/vanilla, glibc-2.4-r3, 2.6.17-gentoo-r2 i686) ================================================================= System uname: 2.6.17-gentoo-r2 i686 Intel(R) Pentium(R) 4 CPU 3.20GHz Gentoo Base System version 1.12.1 app-admin/eselect-compiler: 2.0.0_rc2-r1 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: 1.2.18.1 sys-devel/autoconf: 2.13, 2.60 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: 2.17 sys-devel/gcc-config: [Not Present] sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.11-r5 ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2 -march=pentium4 -pipe -fomit-frame-pointer" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/lib/mozilla/defaults/pref /usr/share/X11/xkb" CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/eselect/compiler /etc/gconf /etc/java-config/vms/ /etc/revdep-rebuild /etc/terminfo" CXXFLAGS="-O2 -march=pentium4 -pipe -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks metadata-transfer sandbox sfperms strict" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo" LANG="fr_FR.UTF-8" LC_ALL="fr_FR.UTF-8" MAKEOPTS="-j2" 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" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="x86 X acpi alsa apache2 avi berkdb bitmap-fonts cdr cli crypt cups dlloader dri dvd dvdr eds emacs emboss encode firefox foomaticdb fortran gdbm gif gnome gpm gstreamer gtk gtk2 imlib ipv6 isdnlog jpeg libg++ libwww lm_sensors mad mikmod motif mozilla mp3 mpeg ncurses nls nptl nptlonly nsplugin nvidia ogg opengl oss pam pcre pdflib perl png pppd python qt3 qt4 quicktime readline reflection sdl session spell spl ssl tcpd truetype truetype-fonts type1-fonts udev unicode usb vorbis win32codecs xml xmms xorg xv zlib elibc_glibc input_devices_keyboard input_devices_mouse kernel_linux userland_GNU video_cards_nv" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LDFLAGS, LINGUAS, PORTAGE_RSYNC_EXTRA_OPTS
Doesn't work here, either. Used to in previous version, though.
pdf output works on 6.2.5.5 and 6.2.6.0, but not 6.2.8.0 (recently marked stable... perhaps too soon?)
Possibly marking imagemagick-6.2.8.0 stable has to do with bug #136452. I had to downgrade libpng to version 1.2.8-r1 to get imagemagick-6.2.5.5 emerged.
Unfortunately, libpng 1.2.8-r1 has a security flaw, see http://www.gentoo.org/security/en/glsa/glsa-200607-06.xml .
An strace run shows that convert blocks at a futex call. By this, I found a workaround for using the recent stable versions for libpng and ImageMagick: 1. Update libpng (currently to version 1.2.12) 2. Change into directory /usr/portage/media-gfx/imagemagick/ 3. Change the ebuild file imagemagick-6.2.8.0.ebuild to compile without threads, i. e. change the option --with-threads to --without-threads 4. Recalculate the digests: ebuild imagemagick-6.2.8.0.ebuild digest 5. emerge -av imagemagick Generating PDF files then worked for me. However, I needed to change the convert option "-page A4" to "-page 595x842" (see the numbers at http://studio.imagemagick.org/script/command-line-options.php#page ). I don't know if this anything to do with this bug #140678.
The same problem here even after 2 months, with imagemagick 6.2.9.5, glibc 2.4-r3, kernel 2.6.18-r1 (gentoo-sources). I also ran strace on imagemagick (strace -f convert image.jpg image.pdf), the same problem as described above; I attach the strace output.
Created attachment 101537 [details] Strace output
Fixed in 6.3.3, please reopen if the issue still exists with that version.
