[philipp@philap ~]$ coredumpctl info 2598 PID: 2598 (Xwayland) UID: 1000 (philipp) GID: 100 (users) Signal: 6 (ABRT) Timestamp: Mon 2017-12-04 13:19:42 CET (13min ago) Command Line: /usr/bin/Xwayland :0 -rootless -terminate -core -listen 4 -listen 5 -displayfd 6 Executable: /usr/bin/Xwayland Control Group: /user.slice/user-1000.slice/session-c3.scope Unit: session-c3.scope Slice: user-1000.slice Session: c3 Owner UID: 1000 (philipp) Boot ID: 2519ca1974f445919ee3bf61fb99d473 Machine ID: 6b17159a8c1f4ba382dc18fa8b8462db Hostname: philap Storage: /var/lib/systemd/coredump/core.Xwayland.1000.2519ca1974f445919ee3bf61fb99d473.2598.1512389982000000.lz4 Message: Process 2598 (Xwayland) of user 1000 dumped core. Stack trace of thread 2598: #0 0x00007ff1296d88a0 raise (libc.so.6) #1 0x00007ff1296d9f09 abort (libc.so.6) #2 0x0000556af7895b9a OsAbort (Xwayland) #3 0x0000556af789b6b3 n/a (Xwayland) #4 0x0000556af789c4d5 FatalError (Xwayland) #5 0x0000556af7727baf n/a (Xwayland) #6 0x0000556af7893711 n/a (Xwayland) #7 0x0000556af788c5bb WaitForSomething (Xwayland) #8 0x0000556af78583c3 n/a (Xwayland) #9 0x0000556af785c660 n/a (Xwayland) #10 0x00007ff1296c4f6a __libc_start_main (libc.so.6) #11 0x0000556af772720a _start (Xwayland) Stack trace of thread 2602: #0 0x00007ff129a6938d pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0) #1 0x00007ff12319b9b4 n/a (swrast_dri.so) #2 0x00007ff12319b808 n/a (swrast_dri.so) #3 0x00007ff129a6308a start_thread (libpthread.so.0) #4 0x00007ff12979a47f __clone (libc.so.6) Stack trace of thread 2600: #0 0x00007ff129a6938d pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0) #1 0x00007ff12319b9b4 n/a (swrast_dri.so) #2 0x00007ff12319b808 n/a (swrast_dri.so) #3 0x00007ff129a6308a start_thread (libpthread.so.0) #4 0x00007ff12979a47f __clone (libc.so.6) Stack trace of thread 2601: #0 0x00007ff129a6938d pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0) #1 0x00007ff12319b9b4 n/a (swrast_dri.so) #2 0x00007ff12319b808 n/a (swrast_dri.so) #3 0x00007ff129a6308a start_thread (libpthread.so.0) #4 0x00007ff12979a47f __clone (libc.so.6) Stack trace of thread 2599: #0 0x00007ff129a6938d pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0) #1 0x00007ff12319b9b4 n/a (swrast_dri.so) #2 0x00007ff12319b808 n/a (swrast_dri.so) #3 0x00007ff129a6308a start_thread (libpthread.so.0) #4 0x00007ff12979a47f __clone (libc.so.6) [philipp@philap ~]$ coredumpctl gdb 2598 PID: 2598 (Xwayland) UID: 1000 (philipp) GID: 100 (users) Signal: 6 (ABRT) Timestamp: Mon 2017-12-04 13:19:42 CET (16min ago) Command Line: /usr/bin/Xwayland :0 -rootless -terminate -core -listen 4 -listen 5 -displayfd 6 Executable: /usr/bin/Xwayland Control Group: /user.slice/user-1000.slice/session-c3.scope Unit: session-c3.scope Slice: user-1000.slice Session: c3 Owner UID: 1000 (philipp) Boot ID: 2519ca1974f445919ee3bf61fb99d473 Machine ID: 6b17159a8c1f4ba382dc18fa8b8462db Hostname: philap Storage: /var/lib/systemd/coredump/core.Xwayland.1000.2519ca1974f445919ee3bf61fb99d473.2598.1512389982000000.lz4 Message: Process 2598 (Xwayland) of user 1000 dumped core. Stack trace of thread 2598: #0 0x00007ff1296d88a0 raise (libc.so.6) #1 0x00007ff1296d9f09 abort (libc.so.6) #2 0x0000556af7895b9a OsAbort (Xwayland) #3 0x0000556af789b6b3 n/a (Xwayland) #4 0x0000556af789c4d5 FatalError (Xwayland) #5 0x0000556af7727baf n/a (Xwayland) #6 0x0000556af7893711 n/a (Xwayland) #7 0x0000556af788c5bb WaitForSomething (Xwayland) #8 0x0000556af78583c3 n/a (Xwayland) #9 0x0000556af785c660 n/a (Xwayland) #10 0x00007ff1296c4f6a __libc_start_main (libc.so.6) #11 0x0000556af772720a _start (Xwayland) Stack trace of thread 2602: #0 0x00007ff129a6938d pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0) #1 0x00007ff12319b9b4 n/a (swrast_dri.so) #2 0x00007ff12319b808 n/a (swrast_dri.so) #3 0x00007ff129a6308a start_thread (libpthread.so.0) #4 0x00007ff12979a47f __clone (libc.so.6) Stack trace of thread 2600: #0 0x00007ff129a6938d pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0) #1 0x00007ff12319b9b4 n/a (swrast_dri.so) #2 0x00007ff12319b808 n/a (swrast_dri.so) #3 0x00007ff129a6308a start_thread (libpthread.so.0) #4 0x00007ff12979a47f __clone (libc.so.6) Stack trace of thread 2601: #0 0x00007ff129a6938d pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0) #1 0x00007ff12319b9b4 n/a (swrast_dri.so) #2 0x00007ff12319b808 n/a (swrast_dri.so) #3 0x00007ff129a6308a start_thread (libpthread.so.0) #4 0x00007ff12979a47f __clone (libc.so.6) Stack trace of thread 2599: #0 0x00007ff129a6938d pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0) #1 0x00007ff12319b9b4 n/a (swrast_dri.so) #2 0x00007ff12319b808 n/a (swrast_dri.so) #3 0x00007ff129a6308a start_thread (libpthread.so.0) #4 0x00007ff12979a47f __clone (libc.so.6) GNU gdb (GDB) 8.0.1 Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-pc-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: . Find the GDB manual and other documentation resources online at: . For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/bin/Xwayland...(no debugging symbols found)...done. [New LWP 2598] [New LWP 2602] [New LWP 2600] [New LWP 2601] [New LWP 2599] [Thread debugging using libthread_db enabled] Using host libthread_db library "/usr/lib/libthread_db.so.1". Core was generated by `/usr/bin/Xwayland :0 -rootless -terminate -core -listen 4 -listen 5 -displayfd'. Program terminated with signal SIGABRT, Aborted. #0 0x00007ff1296d88a0 in raise () from /usr/lib/libc.so.6 [Current thread is 1 (Thread 0x7ff12c1e9100 (LWP 2598))] (gdb) bt #0 0x00007ff1296d88a0 in raise () from /usr/lib/libc.so.6 #1 0x00007ff1296d9f09 in abort () from /usr/lib/libc.so.6 #2 0x0000556af7895b9a in OsAbort () #3 0x0000556af789b6b3 in ?? () #4 0x0000556af789c4d5 in FatalError () #5 0x0000556af7727baf in ?? () #6 0x0000556af7893711 in ?? () #7 0x0000556af788c5bb in WaitForSomething () #8 0x0000556af78583c3 in ?? () #9 0x0000556af785c660 in ?? () #10 0x00007ff1296c4f6a in __libc_start_main () from /usr/lib/libc.so.6 #11 0x0000556af772720a in _start ()