Have this overprintPreview=true in `~/.config/qpdfview/pdf-plugin.conf`. See it crash as soon as a PDF is opened. GDB trace shows: (gdb) r Starting program: /usr/bin/qpdfview [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". [New Thread 0x7ffff31ff700 (LWP 13926)] [New Thread 0x7ffff2933700 (LWP 13927)] [New Thread 0x7ffff10af700 (LWP 13928)] [New Thread 0x7ffff08ae700 (LWP 13929)] [New Thread 0x7fffe3fff700 (LWP 13930)] [New Thread 0x7fffe37fe700 (LWP 13931)] [Detaching after fork from child process 13933] [Detaching after fork from child process 13934] [Detaching after fork from child process 13935] [New Thread 0x7fffe26d7700 (LWP 13936)] [Thread 0x7fffe26d7700 (LWP 13936) exited] [New Thread 0x7fffe26d7700 (LWP 13937)] [New Thread 0x7fffe1605700 (LWP 13938)] Thread 1 "qpdfview" received signal SIGSEGV, Segmentation fault. __memmove_avx_unaligned_erms () at ../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:436 Reproducible: Always Steps to Reproduce: 1. Tick "Overprint preview" in "Settings -> Graphics -> PDF" or by editing conf file as in Description above 2. Open a PDF file... bam! Actual Results: Qpdfview crashes with segfault Expected Results: PDF file is displayed Portage 2.3.89 (python 3.6.10-final-0, default/linux/amd64/17.1/no-multilib, gcc-9.2.0, glibc-2.29-r7, 4.19.97-gentoo x86_64) ================================================================= System Settings ================================================================= System uname: Linux-4.19.97-gentoo-x86_64-Intel-R-_Core-TM-_i7-4702MQ_CPU_@_2.20GHz-with-gentoo-2.6 KiB Mem: 16118584 total, 7825296 free KiB Swap: 16777212 total, 13938916 free Timestamp of repository gentoo: Mon, 23 Mar 2020 18:08:48 +0000 Head commit of repository gentoo: 6724f10bf6bb8b8f8f7b968e984f509cd392a969 sh bash 4.4_p23-r1 ld GNU ld (Gentoo 2.32 p2) 2.32.0 app-shells/bash: 4.4_p23-r1::gentoo dev-lang/perl: 5.30.1::gentoo dev-lang/python: 2.7.17-r1::gentoo, 3.6.10::gentoo, 3.7.6::gentoo dev-util/cmake: 3.16.5::gentoo sys-apps/baselayout: 2.6-r1::gentoo sys-apps/openrc: 0.42.1::gentoo sys-apps/sandbox: 2.13::gentoo sys-devel/autoconf: 2.13-r1::gentoo, 2.69-r4::gentoo sys-devel/automake: 1.11.6-r3::gentoo, 1.16.1-r1::gentoo sys-devel/binutils: 2.32-r1::gentoo, 2.33.1-r1::gentoo sys-devel/gcc: 9.2.0-r2::gentoo sys-devel/gcc-config: 2.2.1::gentoo sys-devel/libtool: 2.4.6-r6::gentoo sys-devel/make: 4.2.1-r4::gentoo sys-kernel/linux-headers: 4.19::gentoo (virtual/os-headers) sys-libs/glibc: 2.29-r7::gentoo Repositories: gentoo location: /var/db/repos/gentoo sync-type: git sync-uri: https://anongit.gentoo.org/git/repo/sync/gentoo.git priority: -1000 localrepo location: /var/db/repos/overlay/localrepo masters: gentoo priority: 10 jorgicio location: /var/lib/layman/jorgicio sync-type: laymansync sync-uri: https://github.com/jorgicio/jorgicio-gentoo.git masters: gentoo priority: 50 lmiphay location: /var/lib/layman/lmiphay sync-type: laymansync sync-uri: git://anongit.gentoo.org/user/lmiphay.git masters: gentoo priority: 50 Installed sets: @audio, @dev, @emacs, @emul, @fonts, @gkrellm, @graphix, @net, @office, @utilz, @video, @web, @webdev, @xfce ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=haswell -pipe -O2 -fomit-frame-pointer" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/lib64/libreoffice/program/sofficerc /usr/share/gnupg/qualified.txt" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php7.2/ext-active/ /etc/php/apache2-php7.3/ext-active/ /etc/php/apache2-php7.4/ext-active/ /etc/php/cgi-php7.2/ext-active/ /etc/php/cgi-php7.3/ext-active/ /etc/php/cgi-php7.4/ext-active/ /etc/php/cli-php7.2/ext-active/ /etc/php/cli-php7.3/ext-active/ /etc/php/cli-php7.4/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-march=haswell -pipe -O2 -fomit-frame-pointer" DISTDIR="/var/cache/distfiles" ENV_UNSET="DBUS_SESSION_BUS_ADDRESS DISPLAY GOBIN PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR" FCFLAGS="-march=haswell -pipe -O2 -fomit-frame-pointer" FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync multilib-strict network-sandbox news parallel-fetch parallel-install pid-sandbox preserve-libs protect-owned qa-unresolved-soname-deps sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-march=haswell -pipe -O2 -fomit-frame-pointer" GENTOO_MIRRORS="http://distfiles.gentoo.org" INSTALL_MASK="/usr/lib/systemd/" LANG="en_US.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" LINGUAS="" MAKEOPTS="-j9" PKGDIR="/var/cache/binpkgs" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --exclude=/.git" PORTAGE_TMPDIR="/var/tmp" USE="alsa amd64 berkdb bittorrent bluetooth btrfs bzip2 calendar caps cddb cdparanoia cli consolekit corefonts crypt cups curl cvs dbus device-mapper djvu dri dvd ebook emacs enchant fam fbcon fortran fpm gdbm git glamor gnome-keyring gnutls gpm graphicsmagick gtk3 gtkstyle h323 hddtemp http hunspell iconv icu id3tag imagemagick introspection jabber jpeg kpathsea ladspa laptop latex lcms libnotify libsamplerate libtirpc lm_sensors lto mng mp3 mplayer musepack musicbrainz mysql mysqli ncurses networkmanager nls nptl ntfs ntfsprogs objc objc++ ogg openmp openvg opus pam pcre pgo png policykit postscript ppds python3 readline rtmp scanner sdl seamonkey seccomp split-usr sql sqlite sqlitessh ssl system-cairo system-harfbuzz system-icu system-jpeg system-libevent system-libvpx system-sqlite tcpd threads tordns truetype udisks unicode v4l2 video vlc vorbis wavpack xattr xcb xcomposite xetex xfce xfs xkb xmp xorg xvfb zlib" ABI_X86="64" ADA_TARGET="gnat_2018" ALSA_CARDS="hda-intel usb-audio" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="karbon sheets words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="aes avx avx2 fma3 mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" GRUB_PLATFORMS="pc" INPUT_DEVICES="keyboard mouse libinput" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php7-3" POSTGRES_TARGETS="postgres10 postgres11" PYTHON_SINGLE_TARGET="python3_6" PYTHON_TARGETS="python2_7 python3_6" RUBY_TARGETS="ruby24 ruby25" SANE_BACKENDS="epson2 epkowa hp" USERLAND="GNU" VIDEO_CARDS="intel i965" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CC, CPPFLAGS, CTARGET, CXX, EMERGE_DEFAULT_OPTS, LC_ALL, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS ================================================================= Package Settings ================================================================= app-text/qpdfview-0.4.18::gentoo was built with the following: USE="cups dbus djvu pdf postscript sqlite svg (-fitz) -synctex" CFLAGS="-march=haswell -pipe -O2 -fomit-frame-pointer -ggdb" CXXFLAGS="-march=haswell -pipe -O2 -fomit-frame-pointer -ggdb" FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs compressdebug config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync multilib-strict network-sandbox news parallel-fetch parallel-install pid-sandbox preserve-libs protect-owned qa-unresolved-soname-deps sandbox sfperms splitdebug strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr"
Looks similar to upstream report.
