We need the robots to retrace that properly, but what I can figure so
far is:
#0 __pthread_kill_implementation (no_tid=0, signo=11,
threadid=139744913655232) at ./nptl/pthread_kill.c:44
44 ./nptl/pthread_kill.c: No such file or directory.
[Current thread is 1 (Thread 0x7f18e5f005c0 (LWP 7141))]
(gdb) bt
#0 __pthread_kill_implementation (no_tid=0, signo=11,
threadid=139744913655232) at ./nptl/pthread_kill.c:44
#1 __pthread_kill_internal (signo=11, threadid=139744913655232)
at ./nptl/pthread_kill.c:78
#2 __GI___pthread_kill (threadid=139744913655232, signo=signo@entry=11)
at ./nptl/pthread_kill.c:89
#3 0x00007f18eb1c9476 in __GI_raise (sig=11) at ../sysdeps/posix/raise.c:26
#4 0x0000561d62d507aa in ?? ()
#5 <signal handler called>
#6 __strlen_avx2_rtm () at ../sysdeps/x86_64/multiarch/strlen-avx2.S:74
#7 0x00007f18d5f2192a in ?? ()
from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#8 0x00007f18d5f21567 in ?? ()
from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#9 0x00007f18d62afed0 in ?? ()
from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#10 0x00007f18d62ab825 in ?? ()
from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#11 0x00007f18d62ad4c7 in ?? ()
from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#12 0x00007f18d61940da in ?? ()
from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#13 0x00007f18d617523f in ?? ()
from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#14 0x00007f18eae25cf2 in ?? ()
from /usr/lib/x86_64-linux-gnu/mutter-10/libmutter-cogl-10.so.0
#15 0x00007f18eae22b3c in ?? ()
from /usr/lib/x86_64-linux-gnu/mutter-10/libmutter-cogl-10.so.0
#16 0x00007f18eae22fee in ?? ()
from /usr/lib/x86_64-linux-gnu/mutter-10/libmutter-cogl-10.so.0
#17 0x00007f18eae33c71 in ?? ()
from /usr/lib/x86_64-linux-gnu/mutter-10/libmutter-cogl-10.so.0
#18 0x00007f18eae1bc76 in ?? ()
from /usr/lib/x86_64-linux-gnu/mutter-10/libmutter-cogl-10.so.0
#19 0x00007f18eae4aeb2 in ?? ()
from /usr/lib/x86_64-linux-gnu/mutter-10/libmutter-cogl-10.so.0
#20 0x00007f18eae4b233 in ?? ()
from /usr/lib/x86_64-linux-gnu/mutter-10/libmutter-cogl-10.so.0
#21 0x00007f18eae4b4c6 in ?? ()
from /usr/lib/x86_64-linux-gnu/mutter-10/libmutter-cogl-10.so.0
#22 0x00007f18eae4bf4f in ?? ()
from /usr/lib/x86_64-linux-gnu/mutter-10/libmutter-cogl-10.so.0
#23 0x00007f18eae53343 in ?? ()
from /usr/lib/x86_64-linux-gnu/mutter-10/libmutter-cogl-10.so.0
#24 0x00007f18ec109f80 in g_list_foreach ()
from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f18eae52e7b in ?? ()
from /usr/lib/x86_64-linux-gnu/mutter-10/libmutter-cogl-10.so.0
#26 0x00007f18eae55e30 in cogl_blit_framebuffer ()
from /usr/lib/x86_64-linux-gnu/mutter-10/libmutter-cogl-10.so.0
#27 0x00007f18eb695b4d in clutter_stage_view_before_swap_buffer ()
from /usr/lib/x86_64-linux-gnu/mutter-10/libmutter-clutter-10.so.0
#28 0x00007f18eb434803 in ?? () from /lib/x86_64-linux-gnu/libmutter-10.so.0
#29 0x00007f18eb438f71 in ?? () from /lib/x86_64-linux-gnu/libmutter-10.so.0
#30 0x00007f18eb52482b in ?? () from /lib/x86_64-linux-gnu/libmutter-10.so.0
#31 0x00007f18eb696258 in ?? ()
from /usr/lib/x86_64-linux-gnu/mutter-10/libmutter-clutter-10.so.0
--Type <RET> for more, q to quit, c to continue without paging--
#32 0x00007f18eb65eda9 in ?? ()
from /usr/lib/x86_64-linux-gnu/mutter-10/libmutter-clutter-10.so.0
#33 0x00007f18ec10fd3b in g_main_context_dispatch ()
from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f18ec1646c8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f18ec10f2b3 in g_main_loop_run ()
from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f18eb47f909 in meta_context_run_main_loop ()
from /lib/x86_64-linux-gnu/libmutter-10.so.0
#37 0x0000561d62d4ff12 in ?? ()
#38 0x00007f18eb1b0d90 in __libc_start_call_main (
main=main@entry=0x561d62d4fa70, argc=argc@entry=1,
argv=argv@entry=0x7ffc73a73a48)
at ../sysdeps/nptl/libc_start_call_main.h:58
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https://bugs.launchpad.net/bugs/2015386
Title:
gnome-shell crashes after "switching to" a new user from an existing
login
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