@frost:/home/normand[normand@frost:~] $ssh twppc64le2 ... === @twppc64le2:/home/michel/tmp[michel@twppc64le2:~/tmp] $ls data2/core* core.gnome-shell.1000.cc6e566052bc4fefb9672e590dab4fdf.30410.1529508640000000 core.login.0.cc6e566052bc4fefb9672e590dab4fdf.2795.1529508596000000 core.gnome-shell.1000.cc6e566052bc4fefb9672e590dab4fdf.30410.1529508640000000.lz4 core.login.0.cc6e566052bc4fefb9672e590dab4fdf.2795.1529508596000000.lz4 === @twppc64le2:/home/michel/tmp[michel@twppc64le2:~/tmp] $gdb -c data2/core.login.0.cc6e566052bc4fefb9672e590dab4fdf.2795.1529508596000000 /bin/login GNU gdb (GDB; openSUSE Tumbleweed) 8.1 Copyright (C) 2018 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 "ppc64le-suse-linux". 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 /bin/login...Reading symbols from /usr/lib/debug/bin/login-2.31.1-5.1.ppc64le.debug...done. done. [New LWP 2795] could not find '.gnu_debugaltlink' file for /usr/lib/debug/usr/lib64/libaudit.so.1.0.0-2.8.2-1.1.ppc64le.debug [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Core was generated by `login -- root '. Program terminated with signal SIGABRT, Aborted. #0 0x00007fff8e0b6adc in __libc_signal_restore_set (set=0x7fffc4c1e738) at ../sysdeps/unix/sysv/linux/nptl-signals.h:80 80 return INTERNAL_SYSCALL (rt_sigprocmask, err, 4, SIG_SETMASK, set, NULL, #0 0x00007fff8e0b6adc in __libc_signal_restore_set (set=0x7fffc4c1e738) at ../sysdeps/unix/sysv/linux/nptl-signals.h:80 #1 __GI_raise (sig=) at ../sysdeps/unix/sysv/linux/raise.c:48 #2 0x00007fff8e0b89a0 in __GI_abort () at abort.c:79 #3 0x00007fff8d8f4120 in log_assert_failed_realm (realm=, text=0x7fff8d8ff7c8 "fd", file=0x7fff8d908630 "../src/basic/socket-util.c", line=, func=0x7fff8d908600 <__PRETTY_FUNCTION__.11792> "getpeergroups") at ../src/basic/log.c:820 #4 0x00007fff8d8fab24 in getpeergroups (fd=, ret=) at ../src/basic/socket-util.c:1011 #5 0x00007fff8d8e6d5c in bus_get_peercred (b=0x1001e4ee0c0) at ../src/libsystemd/sd-bus/bus-socket.c:623 #6 bus_socket_start_auth (b=0x1001e4ee0c0) at ../src/libsystemd/sd-bus/bus-socket.c:674 #7 0x00007fff8d8e73c4 in bus_socket_connect (b=0x1001e4ee0c0) at ../src/libsystemd/sd-bus/bus-socket.c:935 #8 0x00007fff8d8d313c in bus_start_address (b=0x1001e4ee0c0) at ../src/libsystemd/sd-bus/sd-bus.c:1120 #9 0x00007fff8d8d7280 in sd_bus_start (bus=0x1001e4ee0c0) at ../src/libsystemd/sd-bus/sd-bus.c:1204 #10 0x00007fff8d8d7640 in sd_bus_open_system (ret=0x7fffc4c1edc0) at ../src/libsystemd/sd-bus/sd-bus.c:1305 #11 0x00007fff8d8b99c8 in pam_sm_close_session (handle=0x1001e4c1610, flags=, argc=, argv=) at ../src/login/pam_systemd.c:530 #12 0x00007fff8e304290 in _pam_dispatch_aux (use_cached_chain=1, resumed=, h=0x1001e4d25a0, flags=0, pamh=0x1001e4c1610) at pam_dispatch.c:110 #13 _pam_dispatch (pamh=0x1001e4c1610, flags=, choice=) at pam_dispatch.c:426 #14 0x00007fff8e30a9b4 in pam_close_session (pamh=, flags=) at pam_session.c:41 #15 0x0000000110d84ba0 in fork_session (cxt=0x7fffc4c1f060, cxt=0x7fffc4c1f060) at login-utils/login.c:957 #16 main (argc=, argv=) at login-utils/login.c:1322 === @twppc64le2:/home/michel/tmp[michel@twppc64le2:~/tmp] $gdb -c data2/core.gnome-shell.1000.cc6e566052bc4fefb9672e590dab4fdf.30410.1529508640000000 /usr/bin/gnome-shell GNU gdb (GDB; openSUSE Tumbleweed) 8.1 Copyright (C) 2018 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 "ppc64le-suse-linux". 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/gnome-shell...Reading symbols from /usr/lib/debug/usr/bin/gnome-shell-3.28.2+20180519.a52597ac5-1.1.ppc64le.debug...done. done. [New LWP 30417] [New LWP 30413] [New LWP 30410] [New LWP 30414] [New LWP 30418] [New LWP 30412] [New LWP 30415] [New LWP 30464] [New LWP 30466] [New LWP 30469] [New LWP 30772] [New LWP 30473] [New LWP 30465] [New LWP 30475] [New LWP 30421] [New LWP 30467] [New LWP 30468] [New LWP 30419] [New LWP 30416] [New LWP 30420] [New LWP 30472] [New LWP 30470] [New LWP 30471] [New LWP 30474] [New LWP 30422] [New LWP 30423] [New LWP 30463] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Core was generated by `/usr/bin/gnome-shell '. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007fff9cef0020 in ?? () [Current thread is 1 (Thread 0x7fff877eede0 (LWP 30417))] #0 0x00007fff9cef0020 in ?? () #1 0x00007fff8f3427e4 in lp_rast_shade_quads_mask (task=0x10036a62ca0, inputs=0x10038547470, x=, y=, mask=) at lp_rast.c:458 #2 0xfffc0000fffc0000 in ?? () ===