gnome-shell/budgie-wm crashes with SIGSEGV in _cogl_unpack_bgra_8888_8 from _cogl_unpack_8 from _cogl_bitmap_convert_into_bitmap

[David Kedves]

https://errors.ubuntu.com/problem/7700ef9eb2ee16eefb57a28cc0d72a9b11528630

Sometimes it crashes, i think i was trying to move a window to the right side of the screen when this happened.

Backtrace:
sudo gdb /usr/bin/budgie-wm /tmp/coredump.budgie-wm.12829.kedz-i7s850.1553090616
GNU gdb (Ubuntu 8.2-0ubuntu1) 8.2
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Reading symbols from /usr/bin/budgie-wm...Reading symbols from /usr/lib/debug/.build-id/4b/fb3bfed09d0116b7a46bbe32d4a9546a9c12d4.debug...done.
done.
[New LWP 12829]
[New LWP 12841]
[New LWP 12842]
[New LWP 12934]
[New LWP 12933]
[New LWP 12839]
[New LWP 16576]
[New LWP 12940]
[New LWP 12935]
[New LWP 12936]
[New LWP 12938]
[New LWP 12937]
[New LWP 12939]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `budgie-wm'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 _cogl_unpack_bgra_8888_8 (width=<optimized out>, dst=0x55eca12b3b90 "",
    src=0x7fc51f384000 <error: Cannot access memory at address 0x7fc51f384000>)
    at cogl-bitmap-packing.h:143
143 cogl-bitmap-packing.h: No such file or directory.
[Current thread is 1 (Thread 0x7fc569925f40 (LWP 12829))]
(gdb) back
#0 0x00007fc56fecb210 in _cogl_unpack_bgra_8888_8
    (width=<optimized out>, dst=0x55eca12b3b90 "", src=0x7fc51f384000 <error: Cannot access memory at address 0x7fc51f384000>) at cogl-bitmap-packing.h:143
#1 0x00007fc56fecb210 in _cogl_unpack_8
    (width=1808, dst=0x55eca12b35d0 "\016A\020\b", src=0x7fc51f383a40 "\020A\016\bd", format=COGL_PIXEL_FORMAT_BGRA_8888_PRE) at cogl-bitmap-packing.h:362
#2 0x00007fc56fecb210 in _cogl_bitmap_convert_into_bitmap
    (src_bmp=src_bmp@entry=0x55ec9f8c2ac0, dst_bmp=dst_bmp@entry=0x7fc55c006a30, error=error@entry=0x7fffddb7e818) at cogl-bitmap-conversion.c:454
#3 0x00007fc56fecc2fc in _cogl_bitmap_convert
    (src_bmp=0x55ec9f8c2ac0, dst_format=COGL_PIXEL_FORMAT_RGB_888, error=0x7fffddb7e818)
    at cogl-bitmap-conversion.c:509
#4 0x00007fc56fecc446 in _cogl_bitmap_convert_for_upload
    (src_bmp=src_bmp@entry=0x55ec9f8c2ac0, internal_format=<optimized out>, can_convert_in_place=can_convert_in_place@entry=0, error=error@entry=0x7fffddb7e818) at cogl-bitmap-conversion.c:610
#5 0x00007fc56feb2d68 in _cogl_texture_2d_gl_copy_from_bitmap
    (tex_2d=0x55ec9f7fdf10, src_x=0, src_y=0, width=1808, height=784, bmp=0x55ec9f8c2ac0, dst_x=0, dst_y=0, level=0, error=0x7fffddb7e818) at driver/gl/cogl-texture-2d-gl.c:765
#6 0x00007fc56feeb5c5 in _cogl_texture_2d_set_region
    (tex=0x55ec9f7fdf10, src_x=<optimized out>, src_y=<optimized out>, dst_x=<optimized out>, dst_y=<optimized out>, width=<optimized out>, height=784, level=0, bmp=0x55ec9f8c2ac0, error=0x7fffddb7e818)
    at cogl-texture-2d.c:613
#7 0x00007fc56feeb014 in _cogl_texture_set_region
    (texture=0x55ec9f7fdf10, width=width@entry=1808, height=height@entry=784, format=format@entry=COGL_PIXEL_FORMAT_BGRA_8888_PRE, rowstride=<optimized out>, data=<optimized out>, dst_x=0, dst_y=0, level=0, error=0x7fffddb7e818) at cogl-texture.c:464
#8 0x00007fc56ff084d4 in _cogl_texture_pixmap_x11_update_image_texture (tex_pixmap=0x55ec9f7fde00)
    at winsys/cogl-texture-pixmap-x11.c:747
#9 0x00007fc56ff084d4 in _cogl_texture_pixmap_x11_update
    (tex_pixmap=0x55ec9f7fde00, needs_mipmap=<optimized out>) at winsys/cogl-texture-pixmap-x11.c:804
#10 0x00007fc56ff08b03 in _cogl_texture_pixmap_x11_pre_paint (tex=0x55ec9f7fde00, flags=(unknown: 0))
    at winsys/cogl-texture-pixmap-x11.c:1051
#11 0x00007fc56feddded in _cogl_pipeline_layer_pre_paint (layer=0x55eca12f4030)
    at cogl-pipeline-layer.c:864
#12 0x00007fc56fedc197 in _cogl_pipeline_pre_paint_for_layer
    (pipeline=pipeline@entry=0x55eca130bbe0, layer_id=layer_id@entry=0) at cogl-pipeline.c:2607
#13 0x00007fc56fecc46b in _cogl_rectangles_validate_layer_cb
    (pipeline=0x55eca130bbe0, layer_index=0, user_data=0x7fffddb7e9b0) at cogl-primitives.c:542
#14 0x00007fc56fedaa09 in cogl_pipeline_foreach_layer
    (pipeline=pipeline@entry=0x55eca130bbe0, callback=callback@entry=0x7fc56fecc450 <_cogl_rectangles_validate_layer_cb>, user_data=user_data@entry=0x7fffddb7e9b0) at cogl-pipeline.c:735
#15 0x00007fc56feccd31 in _cogl_framebuffer_draw_multitextured_rectangles
    (framebuffer=framebuffer@entry=0x55ec9f416e50, pipeline=pipeline@entry=0x55eca130bbe0, rects=rects@entry=0x7fffddb7ea70, n_rects=n_rects@entry=1, disable_legacy_state=disable_legacy_state@entry=1)
    at cogl-primitives.c:658
#16 0x00007fc56fefa9b1 in cogl_framebuffer_draw_multitextured_rectangle
    (framebuffer=framebuffer@entry=0x55ec9f416e50, pipeline=pipeline@entry=0x55eca130bbe0, x_1=<optimized out>, y_1=<optimized out>, x_2=<optimized out>, y_2=<optimized out>, tex_coords=tex_coords@entry=0x7fffddb7eac0, tex_coords_len=tex_coords_len@entry=8) at cogl-framebuffer.c:2485
#17 0x00007fc5702dd1a6 in paint_clipped_rectangle
--Type <RET> for more, q to quit, c to continue without paging--
    (fb=fb@entry=0x55ec9f416e50, pipeline=pipeline@entry=0x55eca130bbe0, rect=rect@entry=0x7fffddb7eb90, alloc=alloc@entry=0x7fffddb7eb70) at compositor/meta-shaped-texture.c:348
#18 0x00007fc5702dd7a4 in meta_shaped_texture_paint (actor=0x55ec9fbe0ff0)
    at compositor/meta-shaped-texture.c:597
#19 0x00007fc570141a0c in clutter_actor_continue_paint (self=self@entry=0x55ec9fbe0ff0)
    at clutter-actor.c:4040
#20 0x00007fc570147eb6 in clutter_actor_paint (self=0x55ec9fbe0ff0) at clutter-actor.c:3956
#21 0x00007fc570147ff0 in clutter_actor_real_paint (actor=<optimized out>) at clutter-actor.c:3655
#22 0x00007fc570141a0c in clutter_actor_continue_paint (self=self@entry=0x55ec9fbd56c0)
    at clutter-actor.c:4040
#23 0x00007fc570147eb6 in clutter_actor_paint (self=0x55ec9fbd56c0) at clutter-actor.c:3956
#24 0x00007fc570147ff0 in clutter_actor_real_paint (actor=<optimized out>) at clutter-actor.c:3655
#25 0x00007fc5702e1d56 in meta_window_actor_paint (actor=0x55ec9fbe0c10)
    at compositor/meta-window-actor.c:770
#26 0x00007fc570141a0c in clutter_actor_continue_paint (self=self@entry=0x55ec9fbe0c10)
    at clutter-actor.c:4040
#27 0x00007fc570147eb6 in clutter_actor_paint (self=0x55ec9fbe0c10) at clutter-actor.c:3956
#28 0x00007fc570147ff0 in clutter_actor_real_paint (actor=<optimized out>) at clutter-actor.c:3655
#29 0x00007fc5702e42c7 in meta_window_group_paint (actor=0x55ec9f58c410)
    at compositor/meta-window-group.c:125
#30 0x00007fc570141a0c in clutter_actor_continue_paint (self=self@entry=0x55ec9f58c410)
    at clutter-actor.c:4040
#31 0x00007fc570147eb6 in clutter_actor_paint (self=0x55ec9f58c410) at clutter-actor.c:3956
#32 0x00007fc57019d99a in clutter_stage_paint (self=<optimized out>) at clutter-stage.c:701
#33 0x00007fc5702c4ff2 in meta_stage_paint (actor=0x55ec9f416e10) at backends/meta-stage.c:141
#34 0x00007fc570141a0c in clutter_actor_continue_paint (self=self@entry=0x55ec9f416e10)
    at clutter-actor.c:4040
#35 0x00007fc570147eb6 in clutter_actor_paint (self=self@entry=0x55ec9f416e10) at clutter-actor.c:3956
#36 0x00007fc5701a1ac9 in clutter_stage_do_paint_view
    (stage=stage@entry=0x55ec9f416e10, view=0x55ec9f42c150, clip=0x7fffddb7f600) at clutter-stage.c:669
#37 0x00007fc5701a1dc3 in _clutter_stage_paint_view
    (stage=0x55ec9f416e10, view=<optimized out>, clip=<optimized out>) at clutter-stage.c:685
#38 0x00007fc57012ff24 in paint_stage
    (stage_cogl=stage_cogl@entry=0x7fc55c007f20, view=view@entry=0x55ec9f42c150, clip=clip@entry=0x7fffddb7f600) at cogl/clutter-stage-cogl.c:424
#39 0x00007fc5701300da in clutter_stage_cogl_redraw_view
    (stage_window=stage_window@entry=0x7fc55c007f20, view=0x55ec9f42c150)
    at cogl/clutter-stage-cogl.c:757
#40 0x00007fc57013128b in clutter_stage_cogl_redraw (stage_window=0x7fc55c007f20)
    at cogl/clutter-stage-cogl.c:867
#41 0x00007fc57019e929 in clutter_stage_do_redraw (stage=0x55ec9f416e10) at clutter-stage.c:1121
#42 0x00007fc57019e929 in _clutter_stage_do_update (stage=0x55ec9f416e10) at clutter-stage.c:1236
#43 0x00007fc57018a249 in master_clock_update_stages
    (master_clock=0x55ec9fa88600, stages=0x55ec9f6d7760 = {...}) at clutter-master-clock-default.c:443
#44 0x00007fc57018a249 in clutter_clock_dispatch
    (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>)
    at clutter-master-clock-default.c:567
#45 0x00007fc56fd72c3e in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007fc56fd72ed8 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007fc56fd731d2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
--Type <RET> for more, q to quit, c to continue without paging--
#48 0x00007fc5702f74ac in meta_run () at core/main.c:689
#49 0x000055ec9d53f7cd in _vala_main (args=<optimized out>, args_length1=<optimized out>)
    at src/wm/src@wm@@budgie-wm@exe/main.c:136
#50 0x00007fc56faa909b in __libc_start_main (main=
    0x55ec9d53b350 <main>, argc=1, argv=0x7fffddb7fa98, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffddb7fa88) at ../csu/libc-start.c:308
#51 0x000055ec9d53b38a in _start () at src/wm/src@wm@@budgie-wm@exe/main.c:145
(gdb) info locals
No locals.
(gdb)

NOTE: the coredump is about ~620MB so i am not going to attach it here..

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: budgie-core 10.4+git20180830.02.f2dbc215fdb-2ubuntu0.1
ProcVersionSignature: Ubuntu 4.18.0-16.17-generic 4.18.20
Uname: Linux 4.18.0-16-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.10-0ubuntu13.2
Architecture: amd64
CurrentDesktop: Budgie:GNOME
Date: Wed Mar 20 15:12:05 2019
SourcePackage: budgie-desktop
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.default.apport:
 # set this to 0 to disable apport, or to 1 to enable it
 # you can temporarily override this with
 # sudo service apport start force_start=1
 enabled=0
mtime.conffile..etc.default.apport: 2015-03-22T12:00:14.314889

[David Kedves (kedazo)]

It crashed again, attaching a newer backtrace (this time an all thread one).

[fossfreedom (fossfreedom)]

Sorry - cannot reproduce this - but you are right this is somewhere in clutter/mutter . Can you tell me a bit more about your setup.

Is this a virtual machine - if so what virtualisation solution are you using - how have you configured your VM.

Is this a real machine - if so, what graphics card and graphics driver are you using - nvidia? have you got animations switched on/off in budgie-desktop-settings (it should be off).

Can you reproduce this if you boot into a live session of 19.04 Ubuntu Budgie (download the latest daily image)?

[David Kedves (kedazo)]

Well it is a real machine, the apport report (the attached txt files) are containing everything.

I use some nvidia graphics card using the proprietary driver
(nvidia-driver-390 390.116-0ubuntu0.18.10.1).

Animations are turned off, I actually installed the budgie packages not so long ago.
It is an Ubuntu 18.10 cosmic setup, i installed the budgie-desktop packages from default Ubuntu repos:
 libmutter-3-0:amd64 3.30.2-1~ubuntu18.10.4
 budgie-core 10.4+git20180830.02.f2dbc215fdb-2ubuntu0.1
 budgie-desktop 10.4+git20180830.02.f2dbc215fdb-2ubuntu0.1
 budgie-desktop-environment 0.10.5
 ubuntu-budgie-desktop 0.37

I am not sure when i'll be able to play with a live session of 19.04 :-S Also it takes some time to reproduce this... I use this machine for working mostly, 8-10hours per a day, it happens like 2-3 times per a day...
But I am pretty sure that dragging the window to the left/right side to the screen (to occupy the half screen, this sticking feature...) or moving the window out from that position triggers this...

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Daniel van Vugt (vanvugt)]

Tracking in: https://errors.ubuntu.com/problem/7700ef9eb2ee16eefb57a28cc0d72a9b11528630

[Daniel van Vugt (vanvugt)]

It appears the crash stopped happening universally some time after 19.04 and before 19.10.