The bug is documented in bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1430103
I copy from there: | I found that a very long CLASSPATH environment variable seemed to trigger the segfault. My guess is that a recent change in libpcre has made libpcre crash, if some environment value is too large. | ... | I removed a bunch of java packages on my system, and that seemed to bring down my automatically generated CLASSPATH to a length which no longer puts pcre in a bad mood. | Still, if I'm right about the above assumptions, then I believe there's a bug in PCRE -- probably introduced in v. 8.40. ** Bug watch added: Red Hat Bugzilla #1430103 https://bugzilla.redhat.com/show_bug.cgi?id=1430103 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to pcre3 in Ubuntu. https://bugs.launchpad.net/bugs/1818027 Title: cinnamon-sessio: segfault at <addr> ip <addr> sp <addr> error 6 in libpcre.so.3.13.3[<addr>+70000] Status in pcre3 package in Ubuntu: New Bug description: When trying to start cinnamon-session, gnome-session or mate-session got the following error in dmesg and system comes back to login screen. Feb 25 12:21:57 vdc008es kernel: [ 4152.156085] mate-session[9280]: segfault at 7ffec6653f50 ip 00007fcc7192f544 sp 00007ffec6653f40 error 6 in libpcre.so.3.13.3[7fcc7191c000+52000] Feb 25 12:28:32 vdc008es kernel: [ 4547.063501] mate-session[11708]: segfault at 7ffdb99adfd0 ip 00007f3be4ce7544 sp 00007ffdb99adfc0 error 6 in libpcre.so.3.13.3[7f3be4cd4000+52000] Feb 25 12:32:59 vdc008es kernel: [ 4814.736465] gnome-session-b[14886]: segfault at 7fff0955dfc0 ip 00007f0c2edb1544 sp 00007fff0955dfb0 error 6 in libpcre.so.3.13.3[7f0c2ed9e000+52000] Feb 25 12:34:09 vdc008es kernel: [ 4884.530854] gnome-session-b[15428]: segfault at 7ffdda078f00 ip 00007ff8ebe52544 sp 00007ffdda078ef0 error 6 in libpcre.so.3.13.3[7ff8ebe3f000+52000] Feb 25 12:46:24 vdc008es kernel: [ 5619.711529] cinnamon-sessio[16509]: segfault at 7ffd76354f50 ip 00007f95fd51a5b4 sp 00007ffd76354f40 error 6 in libpcre.so.3.13.3[7f95fd507000+52000] Feb 25 12:47:19 vdc008es kernel: [ 5674.763774] cinnamon-sessio[16710]: segfault at 7ffc71db3f00 ip 00007f2b564625b4 sp 00007ffc71db3ef0 error 6 in libpcre.so.3.13.3[7f2b5644f000+52000] Feb 27 08:53:45 vdc008es kernel: [ 797.603382] cinnamon-sessio[8717]: segfault at 7fffdce58f10 ip 00007ff112ea8a6a sp 00007fffdce58f00 error 6 in libpcre.so.3.13.3[7ff112e90000+70000] Feb 27 08:54:51 vdc008es kernel: [ 863.390698] cinnamon-sessio[8916]: segfault at 7fff6482ded0 ip 00007fdd97659a6a sp 00007fff6482dec0 error 6 in libpcre.so.3.13.3[7fdd97641000+70000] Feb 27 09:12:57 vdc008es kernel: [ 1949.158835] cinnamon-sessio[10260]: segfault at 7fff709d4f10 ip 00007f358d697a6a sp 00007fff709d4f00 error 6 in libpcre.so.3.13.3[7f358d67f000+70000] Feb 28 08:28:39 vdc008es kernel: [ 200.816875] cinnamon-sessio[4996]: segfault at 7fff3d476e90 ip 00007f053ae23a6a sp 00007fff3d476e80 error 6 in libpcre.so.3.13.3[7f053ae0b000+70000] Do not know if it is a configuration issue or something else. Tried removing any configuration file related to X in user home with no luck at all: rm -fRv .aptitude .aws .cache .config createLinks.sh .dbeaver-drivers .dbus .dmrc .emma .esd_auth .gconf .gimp-2.8 .gnome .gnome2 .gnome2_private .gnupg .gstreamer-0.10.history .ICEauthority .icons .install4j .java .jedit .jmc .jprofiler10 .kde .lesshst .local .mozilla .mplayer .mysql .nbi .p2 .pki.recently-used .rnd rpmbuild .rpmdb .sdbg .selected_editor .sonar .sonarlint .subversion.backup_20181228-1207 .sudo_as_admin_successful .swt .themes .thumbnails .thunderbird .tooling .tora.tse .unison .vim .viminfo VirtualBox\ VMs/ .visualvm .vscode .vscode-insiders .wget- hsts .Xauthority .xscreensaver .xsession-errors .xsession-errors.old client64/ .gstreamer-0.10/ .pki/ .recently-used Trying too with night build of cinnamon. Still the same. $ apt-cache policy cinnamon cinnamon: Installed: 3.8.8-20180729040943-bionic Candidate: 3.8.8-20180729040943-bionic Version table: *** 3.8.8-20180729040943-bionic 100 99 http://ppa.launchpad.net/gwendal-lebihan-dev/cinnamon-nightly/ubuntu bionic/main amd64 Packages 100 /var/lib/dpkg/status $ lsb_release -rd Description: Ubuntu 18.04.2 LTS Release: 18.04 $ apt-cache policy libpcre3 libpcre3: Installed: 2:8.39-9 Candidate: 2:8.39-9 Version table: *** 2:8.39-9 600 Thanks in advance for your help. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: libpcre3 2:8.39-9 ProcVersionSignature: Ubuntu 4.18.0-13.14~18.04.1-generic 4.18.17 Uname: Linux 4.18.0-13-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.1 Architecture: amd64 CurrentDesktop: XFCE Date: Thu Feb 28 08:30:13 2019 Dependencies: gcc-8-base 8.2.0-1ubuntu2~18.04 libc6 2.27-3ubuntu1 libgcc1 1:8.2.0-1ubuntu2~18.04 InstallationDate: Installed on 2017-05-22 (647 days ago) InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2) SourcePackage: pcre3 UpgradeStatus: Upgraded to bionic on 2018-12-27 (62 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pcre3/+bug/1818027/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
