Public bug reported:
PID: 20213 (blocking-1)
UID: 1000 (greg)
GID: 1000 (greg)
Signal: 11 (SEGV)
Timestamp: Fri 2026-07-31 10:07:23 BST (6s ago)
Command Line: evince-thumbnailer -s 256
file:///tmp/gnome-desktop-file-to-thumbnail.pdf
/tmp/gnome-desktop-thumbnailer.png
Executable: /usr/bin/evince-thumbnailer
Control Group:
/user.slice/user-1000.slice/[email protected]/session.slice/dbus.service
Unit: [email protected]
User Unit: dbus.service
Slice: user-1000.slice
Owner UID: 1000 (greg)
Boot ID: 6fe9d6b051f7469a92cee0eb50a47404
Machine ID: b16aad96e945406f90c7a0309a81faa4
Hostname: greg-MS-7C56
Storage:
/var/lib/systemd/coredump/core.blocking-1.1000.6fe9d6b051f7469a92cee0eb50a47404.20213.1785488843000000.zst
(present)
Size on Disk: 1.4M
Package: evince/49~alpha-2ubuntu2.1
build-id: 18328c573cafd2325df69634176a59dce0721e1f
Message: Process 20213 (blocking-1) of user 1000 dumped core.
Module /usr/bin/evince-thumbnailer from deb
evince-49~alpha-2ubuntu2.1.amd64
Module linux-vdso.so.1 from deb linux-7.0.0-28.28.amd64
Module libgpg-error.so.0 from deb libgpg-error-1.58-2.amd64
Module libassuan.so.9 from deb libassuan-3.0.2-2build1.amd64
Module libcrypto.so.3 from deb openssl-3.5.5-1ubuntu3.3.amd64
Module libssl.so.3 from deb openssl-3.5.5-1ubuntu3.3.amd64
Module libsasl2.so.2 from deb
cyrus-sasl2-2.1.28+dfsg1-9ubuntu3.amd64
Module libplds4.so from deb nspr-2:4.38.2-1ubuntu1.amd64
Module libnssutil3.so from deb nss-2:3.120-1ubuntu2.1.amd64
Module libgpgme.so.45 from deb gpgme1.0-2.0.1-2build1.amd64
Module libpsl.so.5 from deb libpsl-0.21.2-1.1build2.amd64
Module libssh2.so.1 from deb
libssh2-1.11.1-1ubuntu0.26.04.3.amd64
Module liblber.so.2 from deb openldap-2.6.10+dfsg-1ubuntu5.amd64
Module libldap.so.2 from deb openldap-2.6.10+dfsg-1ubuntu5.amd64
Module librtmp.so.1 from deb
rtmpdump-2.4+20151223.gitfa8646d.1-3.amd64
Module libnghttp2.so.14 from deb nghttp2-1.68.0-2ubuntu0.2.amd64
Module libnspr4.so from deb nspr-2:4.38.2-1ubuntu1.amd64
Module libplc4.so from deb nspr-2:4.38.2-1ubuntu1.amd64
Module libsmime3.so from deb nss-2:3.120-1ubuntu2.1.amd64
Module libnss3.so from deb nss-2:3.120-1ubuntu2.1.amd64
Module libopenjp2.so.7 from deb openjpeg2-2.5.4-1ubuntu0.1.amd64
Module libgpgmepp.so.7 from deb gpgmepp-2.0.0-2.amd64
Module libcurl-gnutls.so.4 from deb curl-8.18.0-1ubuntu2.3.amd64
Module libpoppler.so.156 from deb
poppler-26.01.0-2ubuntu0.1.amd64
Module libpoppler-glib.so.8 from deb
poppler-26.01.0-2ubuntu0.1.amd64
Module libpdfdocument.so from deb
evince-49~alpha-2ubuntu2.1.amd64
Module libgvfscommon.so from deb gvfs-1.60.0-1.amd64
Module libgvfsdbus.so from deb gvfs-1.60.0-1.amd64
Module libsystemd.so.0 from deb systemd-259.5-0ubuntu3.amd64
Module libkeyutils.so.1 from deb keyutils-1.6.3-6ubuntu3.amd64
Module libgmp.so.10 from deb gmp-2:6.3.0+dfsg-5ubuntu2.amd64
Module libnettle.so.8 from deb nettle-3.10.2-1.amd64
Module libhogweed.so.6 from deb nettle-3.10.2-1.amd64
Module libtasn1.so.6 from deb libtasn1-6-4.21.0-2.amd64
Module libunistring.so.5 from deb libunistring-1.3-2build1.amd64
Module libidn2.so.0 from deb libidn2-2.3.8-4build1.amd64
Module libp11-kit.so.0 from deb p11-kit-0.26.2-2.amd64
Module libdbus-1.so.3 from deb dbus-1.16.2-2ubuntu4.amd64
Module libkrb5support.so.0 from deb krb5-1.22.1-2ubuntu4.1.amd64
Module libcom_err.so.2 from deb e2fsprogs-1.47.2-3ubuntu4.amd64
Module libk5crypto.so.3 from deb krb5-1.22.1-2ubuntu4.1.amd64
Module libkrb5.so.3 from deb krb5-1.22.1-2ubuntu4.1.amd64
Module libsharpyuv.so.0 from deb libwebp-1.5.0-0.1build1.amd64
Module libGLX.so.0 from deb libglvnd-1.7.0-3.amd64
Module libGLdispatch.so.0 from deb libglvnd-1.7.0-3.amd64
Module libgstaudio-1.0.so.0 from deb
gst-plugins-base1.0-1.28.2-1.amd64
Module libbrotlicommon.so.1 from deb brotli-1.2.0-3build1.amd64
Module libdatrie.so.1 from deb libdatrie-0.2.14-1.amd64
Module libudev.so.1 from deb systemd-259.5-0ubuntu3.amd64
Module libgnutls.so.30 from deb gnutls28-3.8.12-2ubuntu1.1.amd64
Module libavahi-client.so.3 from deb avahi-0.8-18ubuntu1.1.amd64
Module libavahi-common.so.3 from deb avahi-0.8-18ubuntu1.1.amd64
Module libgssapi_krb5.so.2 from deb krb5-1.22.1-2ubuntu4.1.amd64
Module liblzo2.so.2 from deb lzo2-2.10-3build2.amd64
Module libdeflate.so.0 from deb libdeflate-1.23-2ubuntu1.amd64
Module libjbig.so.0 from deb jbigkit-2.1-6.1ubuntu3.amd64
Module libLerc.so.4 from deb lerc-4.0.0+ds-5ubuntu2.amd64
Module liblzma.so.5 from deb xz-utils-5.8.3-1.amd64
Module libzstd.so.1 from deb libzstd-1.5.7+dfsg-3.amd64
Module libwebp.so.7 from deb libwebp-1.5.0-0.1build1.amd64
Module libgbm.so.1 from deb mesa-26.0.3-1ubuntu1.amd64
Module libdrm.so.2 from deb libdrm-2.4.131-1.amd64
Module libgudev-1.0.so.0 from deb libgudev-238-7build1.amd64
Module libX11-xcb.so.1 from deb libx11-2:1.8.13-1.amd64
Module libwayland-cursor.so.0 from deb wayland-1.24.0-2.amd64
Module libEGL.so.1 from deb libglvnd-1.7.0-3.amd64
Module libGL.so.1 from deb libglvnd-1.7.0-3.amd64
Module liborc-0.4.so.0 from deb orc-1:0.4.42-2.amd64
Module libgstbase-1.0.so.0 from deb gstreamer1.0-1.28.2-1.amd64
Module libgstpbutils-1.0.so.0 from deb
gst-plugins-base1.0-1.28.2-1.amd64
Module libgsttag-1.0.so.0 from deb
gst-plugins-base1.0-1.28.2-1.amd64
Module libgraphite2.so.3 from deb
graphite2-1.3.14-11ubuntu1.1.amd64
Module libXdmcp.so.6 from deb libxdmcp-1:1.1.5-2.amd64
Module libXau.so.6 from deb libxau-1:1.0.11-1build2.amd64
Module libbrotlidec.so.1 from deb brotli-1.2.0-3build1.amd64
Module libbz2.so.1.0 from deb bzip2-1.0.8-6build2.amd64
Module libblkid.so.1 from deb util-linux-2.41.3-3ubuntu2.amd64
Module libseccomp.so.2 from deb libseccomp-2.6.0-2ubuntu5.amd64
Module liblcms2.so.2 from deb lcms2-2.17-1ubuntu0.2.amd64
Module libgcc_s.so.1 from deb gcc-16-16-20260322-1ubuntu1.amd64
Module libstdc++.so.6 from deb gcc-16-16-20260322-1ubuntu1.amd64
Module libexpat.so.1 from deb expat-2.7.4-1.amd64
Module libthai.so.0 from deb libthai-0.1.30-1.amd64
Module libcolord.so.2 from deb colord-1.4.8-3.amd64
Module libcups.so.2 from deb cups-2.4.16-1ubuntu1.3.amd64
Module libcairo-script-interpreter.so.2 from deb
cairo-1.18.4-3.amd64
Module libXinerama.so.1 from deb
libxinerama-2:1.1.4-3build2.amd64
Module libXrandr.so.2 from deb libxrandr-2:1.5.4-1build1.amd64
Module libXfixes.so.3 from deb libxfixes-1:6.0.0-2build2.amd64
Module libXdamage.so.1 from deb libxdamage-1:1.1.7-1.amd64
Module libXcursor.so.1 from deb libxcursor-1:1.2.3-1build1.amd64
Module libwayland-egl.so.1 from deb wayland-1.24.0-2.amd64
Module libwayland-client.so.0 from deb wayland-1.24.0-2.amd64
Module libxkbcommon.so.0 from deb libxkbcommon-1.13.1-1.amd64
Module libjpeg.so.8 from deb libjpeg-turbo-2.1.5-4ubuntu4.amd64
Module libtiff.so.6 from deb tiff-4.7.0-3ubuntu4.amd64
Module libvulkan.so.1 from deb vulkan-loader-1.4.341.0-1.amd64
Module libpangoft2-1.0.so.0 from deb pango1.0-1.57.0-1.amd64
Module libXi.so.6 from deb libxi-2:1.8.2-2.amd64
Module libgraphene-1.0.so.0 from deb
graphene-1.10.8-5build1.amd64
Module libgstallocators-1.0.so.0 from deb
gst-plugins-base1.0-1.28.2-1.amd64
Module libgstgl-1.0.so.0 from deb
gst-plugins-base1.0-1.28.2-1.amd64
Module libgstreamer-1.0.so.0 from deb
gstreamer1.0-1.28.2-1.amd64
Module libgstvideo-1.0.so.0 from deb
gst-plugins-base1.0-1.28.2-1.amd64
Module libgstplay-1.0.so.0 from deb
gst-plugins-bad1.0-1.28.2-1ubuntu1.1.amd64
Module libepoxy.so.0 from deb libepoxy-1.5.10-2build1.amd64
Module libcairo-gobject.so.2 from deb cairo-1.18.4-3.amd64
Module libfribidi.so.0 from deb fribidi-1.0.16-5.amd64
Module libharfbuzz-subset.so.0 from deb harfbuzz-12.3.2-2.amd64
Module libharfbuzz.so.0 from deb harfbuzz-12.3.2-2.amd64
Module libpangocairo-1.0.so.0 from deb pango1.0-1.57.0-1.amd64
Module libpixman-1.so.0 from deb pixman-0.46.4-1.amd64
Module libxcb-shm.so.0 from deb libxcb-1.17.0-2ubuntu1.amd64
Module libxcb-render.so.0 from deb libxcb-1.17.0-2ubuntu1.amd64
Module libxcb.so.1 from deb libxcb-1.17.0-2ubuntu1.amd64
Module libXrender.so.1 from deb
libxrender-1:0.9.12-1build1.amd64
Module libXext.so.6 from deb libxext-2:1.3.4-1build3.amd64
Module libX11.so.6 from deb libx11-2:1.8.13-1.amd64
Module libfreetype.so.6 from deb
freetype-2.14.2+dfsg-1ubuntu0.1.amd64
Module libfontconfig.so.1 from deb
fontconfig-2.17.1-3ubuntu1.amd64
Module libpng16.so.16 from deb libpng1.6-1.6.57-1.amd64
Module libselinux.so.1 from deb libselinux-3.9-4build1.amd64
Module libmount.so.1 from deb util-linux-2.41.3-3ubuntu2.amd64
Module libz.so.1 from deb
zlib-1:1.3.dfsg+really1.3.1-1ubuntu3.amd64
Module libpcre2-8.so.0 from deb pcre2-10.46-1build1.amd64
Module libatomic.so.1 from deb gcc-16-16-20260322-1ubuntu1.amd64
Module libffi.so.8 from deb libffi-3.5.2-4.amd64
Module libglycin-2.so.0 from deb glycin-2.1.1+ds-0ubuntu1.amd64
Module libsynctex.so.2 from deb
texlive-bin-2025.20250727.75242+ds-5build1.amd64
Module libexempi.so.8 from deb exempi-2.6.6-2build1.amd64
Module libgmodule-2.0.so.0 from deb glib2.0-2.88.0-1.amd64
Module libpango-1.0.so.0 from deb pango1.0-1.57.0-1.amd64
Module libgtk-4.so.1 from deb gtk4-4.22.4+ds-0ubuntu0.1.amd64
Module libcairo.so.2 from deb cairo-1.18.4-3.amd64
Module libgio-2.0.so.0 from deb glib2.0-2.88.0-1.amd64
Module libglib-2.0.so.0 from deb glib2.0-2.88.0-1.amd64
Module libgobject-2.0.so.0 from deb glib2.0-2.88.0-1.amd64
Module libgdk_pixbuf-2.0.so.0 from deb
gdk-pixbuf-2.44.5+dfsg-4ubuntu1.amd64
Module libevdocument-4.0.so.6 from deb
evince-49~alpha-2ubuntu2.1.amd64
Stack trace of thread 7:
#0 0x000070f45722896e __GI_abort (libc.so.6 + 0x2896e)
#1 0x000070f455e3ceca n/a (libglycin-2.so.0 + 0x3ceca)
#2 0x000070f455e3cef9 n/a (libglycin-2.so.0 + 0x3cef9)
#3 0x000070f456089140 n/a (libglycin-2.so.0 + 0x289140)
#4 0x000070f4560a0ab7 n/a (libglycin-2.so.0 + 0x2a0ab7)
#5 0x000070f455e6b801 n/a (libglycin-2.so.0 + 0x6b801)
#6 0x000070f455f70c57 n/a (libglycin-2.so.0 + 0x170c57)
#7 0x000070f455f71a68 n/a (libglycin-2.so.0 + 0x171a68)
#8 0x000070f45608de64 n/a (libglycin-2.so.0 + 0x28de64)
#9 0x000070f4572a407a start_thread (libc.so.6 + 0xa407a)
#10 0x000070f457337534 __clone (libc.so.6 + 0x137534)
ELF object binary architecture: AMD x86-64
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: evince 49~alpha-2ubuntu2.1
ProcVersionSignature: Ubuntu 7.0.0-28.28-generic 7.0.12
Uname: Linux 7.0.0-28-generic x86_64
ApportVersion: 2.34.0-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Fri Jul 31 10:16:59 2026
InstallationDate: Installed on 2021-08-10 (1816 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64
(20210209.1)
SourcePackage: evince
UpgradeStatus: Upgraded to resolute on 2026-05-07 (85 days ago)
** Affects: evince (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apparmor apport-bug resolute wayland-session
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https://bugs.launchpad.net/bugs/2162558
Title:
thumbernailer app keeps crashing when opening explorer
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