gdmflexiserver hangs the OS
@qzheng
Submitted by qzheng Link to original bug (#794552)
Description
Step:
- Login the system with IceWM session
- execute command gdmflexiserver in xterm
Actual Result: The screen is blank and OS hangs with no response.
Mar 20 23:10:43 linux-5qop systemd-logind[1553]: New session c2 of user gdm. Mar 20 23:10:43 linux-5qop systemd[1]: Started Session c2 of user gdm. Mar 20 23:10:43 linux-5qop gdm-launch-environment][4845]: pam_unix(gdm-launch-environment:session): session opened for user gdm by (uid=0) Mar 20 23:10:43 linux-5qop systemd[1]: Started Daily Cleanup of Snapper Snapshots. Mar 20 23:10:43 linux-5qop dbus-daemon[1351]: [system] Activating service name='org.opensuse.Snapper' requested by ':1.66' (uid=0 pid=4853 comm="/usr/lib/snapper/systemd-helper --cleanup ") (using servicehelper) Mar 20 23:10:43 linux-5qop dbus-daemon[1351]: [system] Successfully activated service 'org.opensuse.Snapper' Mar 20 23:10:43 linux-5qop systemd-helper[4853]: running number cleanup for 'root'. Mar 20 23:10:43 linux-5qop kernel: gnome-session-c[4867]: segfault at 0 ip (null) sp 00007ffd7a9327a8 error 14 in gnome-session-check-accelerated[55f03cd3d000+2000] Mar 20 23:10:43 linux-5qop systemd[1]: Created slice system-systemd\x2dcoredump.slice. Mar 20 23:10:43 linux-5qop systemd[1]: Started Process Core Dump (PID 4871/UID 0). Mar 20 23:10:43 linux-5qop systemd-coredump[4872]: Process 4867 (gnome-session-c) of user 465 dumped core. Mar 20 23:10:44 linux-5qop kernel: gnome-session-c[4873]: segfault at 0 ip (null) sp 00007fff14125468 error 14 in gnome-session-check-accelerated[55555870b000+2000] Mar 20 23:10:44 linux-5qop systemd[1]: Started Process Core Dump (PID 4881/UID 0). Mar 20 23:10:44 linux-5qop gnome-session-binary[4864]: WARNING: software acceleration check failed: 子进程已由信号 11 杀死 Mar 20 23:10:44 linux-5qop systemd-coredump[4882]: Process 4873 (gnome-session-c) of user 465 dumped core. Mar 20 23:10:44 linux-5qop kernel: BTRFS info (device sda2): qgroup scan completed (inconsistency flag cleared) Mar 20 23:10:45 linux-5qop systemd-helper[4853]: running timeline cleanup for 'root'. Mar 20 23:10:45 linux-5qop systemd-helper[4853]: running empty-pre-post cleanup for 'root'. Mar 20 23:11:09 linux-5qop unix2_chkpwd[4891]: pam_unix(xscreensaver:auth): authentication failure; logname= uid=1000 euid=0 tty= ruser= rhost= user=pete Mar 20 23:11:11 linux-5qop unix2_chkpwd[4891]: pam_authenticate(xscreensaver, pete): Authentication failure Mar 20 23:11:14 linux-5qop unix2_chkpwd[4892]: pam_unix(xscreensaver:auth): authentication failure; logname= uid=1000 euid=0 tty= ruser= rhost= user=root Mar 20 23:11:16 linux-5qop unix2_chkpwd[4892]: pam_authenticate(xscreensaver, root): Authentication failure
linux-5qop:/home/test # coredumpctl TIME PID UID GID SIG COREFILE EXE Tue 2018-03-20 23:38:35 CST 2522 465 466 11 present /usr/lib/gnome-session-check-accelerated Tue 2018-03-20 23:38:35 CST 2528 465 466 11 present /usr/lib/gnome-session-check-accelerated linux-5qop:/home/test # coredumpctl info PID: 2522 (gnome-session-c) UID: 465 (gdm) GID: 466 (gdm) Signal: 11 (SEGV) Timestamp: Tue 2018-03-20 23:38:34 CST (8min ago) Command Line: /usr/lib/gnome-session-check-accelerated Executable: /usr/lib/gnome-session-check-accelerated Control Group: /user.slice/user-465.slice/session-c2.scope Unit: session-c2.scope Slice: user-465.slice Session: c2 Owner UID: 465 (gdm) Boot ID: 68434620840e4c468d63caccea87d155 Machine ID: dfd23710f9a44e2a9b841e341d76f5c1 Hostname: linux-5qop Storage: /var/lib/systemd/coredump/core.gnome-session-c.465.68434620840e4c468d63caccea87d155.2522.1521560314000000.lz4 Message: Process 2522 (gnome-session-c) of user 465 dumped core. PID: 2528 (gnome-session-c) UID: 465 (gdm) GID: 466 (gdm) Signal: 11 (SEGV) Timestamp: Tue 2018-03-20 23:38:35 CST (8min ago) Command Line: /usr/lib/gnome-session-check-accelerated Executable: /usr/lib/gnome-session-check-accelerated Control Group: /user.slice/user-465.slice/session-c2.scope Unit: session-c2.scope Slice: user-465.slice Session: c2 Owner UID: 465 (gdm) Boot ID: 68434620840e4c468d63caccea87d155 Machine ID: dfd23710f9a44e2a9b841e341d76f5c1 Hostname: linux-5qop Storage: /var/lib/systemd/coredump/core.gnome-session-c.465.68434620840e4c468d63caccea87d155.2528.1521560315000000.lz4 Message: Process 2528 (gnome-session-c) of user 465 dumped core.
Version: 3.26.x