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Bug 1889269 - [abrt] gnome-shell: vsubq_f32(): gnome-shell killed by SIGBUS
Summary: [abrt] gnome-shell: vsubq_f32(): gnome-shell killed by SIGBUS
Keywords:
Status: CLOSED DUPLICATE of bug 1937023
Alias: None
Product: Fedora
Classification: Fedora
Component: gcc
Version: 33
Hardware: armv7l
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Jakub Jelinek
QA Contact: Fedora Extras Quality Assurance
URL: https://retrace.fedoraproject.org/faf...
Whiteboard: abrt_hash:8297efc0ecb600f7e50b3bd1728...
Depends On:
Blocks: ARMTracker
TreeView+ depends on / blocked
 
Reported: 2020-10-19 08:37 UTC by Nicolas Chauvet (kwizart)
Modified: 2021-03-10 08:14 UTC (History)
15 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-03-10 08:14:37 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)
File: backtrace (31.61 KB, text/plain)
2020-10-19 08:37 UTC, Nicolas Chauvet (kwizart) 		no flags Details
File: core_backtrace (27.93 KB, text/plain)
2020-10-19 08:37 UTC, Nicolas Chauvet (kwizart) 		no flags Details
File: cpuinfo (790 bytes, text/plain)
2020-10-19 08:38 UTC, Nicolas Chauvet (kwizart) 		no flags Details
File: dso_list (20.32 KB, text/plain)
2020-10-19 08:38 UTC, Nicolas Chauvet (kwizart) 		no flags Details
File: environ (1.07 KB, text/plain)
2020-10-19 08:38 UTC, Nicolas Chauvet (kwizart) 		no flags Details
File: exploitable (118 bytes, text/plain)
2020-10-19 08:38 UTC, Nicolas Chauvet (kwizart) 		no flags Details
File: limits (1.29 KB, text/plain)
2020-10-19 08:38 UTC, Nicolas Chauvet (kwizart) 		no flags Details
File: maps (63.98 KB, text/plain)
2020-10-19 08:38 UTC, Nicolas Chauvet (kwizart) 		no flags Details
File: mountinfo (2.22 KB, text/plain)
2020-10-19 08:38 UTC, Nicolas Chauvet (kwizart) 		no flags Details
File: open_fds (3.72 KB, text/plain)
2020-10-19 08:38 UTC, Nicolas Chauvet (kwizart) 		no flags Details
File: proc_pid_status (1.01 KB, text/plain)
2020-10-19 08:38 UTC, Nicolas Chauvet (kwizart) 		no flags Details
File: var_log_messages (3.62 KB, text/plain)
2020-10-19 08:38 UTC, Nicolas Chauvet (kwizart) 		no flags Details
View All

Description Nicolas Chauvet (kwizart) 2020-10-19 08:37:51 UTC 
Description of problem:


Version-Release number of selected component:
gnome-shell-3.38.1-2.fc33

Additional info:
reporter:       libreport-2.14.0
backtrace_rating: 4
cgroup:         0::/user.slice/user-42.slice/session-c3.scope
cmdline:        /usr/bin/gnome-shell
crash_function: vsubq_f32
executable:     /usr/bin/gnome-shell
journald_cursor: s=29f328ea0bce481a9492a0116e0809fe;i=1889e;b=0d1e78c7f04249b1b7c55d845adc965f;m=3d589251;t=5b1f5403467f0;x=18af5e9c83d176ed
kernel:         5.9.0-36.fc34.armv7hl
rootdir:        /
runlevel:       N 5
type:           CCpp
uid:            42

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 vsubq_f32 at /usr/lib/gcc/armv7hl-redhat-linux-gnueabi/10/include/arm_neon.h:1960
 #1 graphene_vec3_subtract at ../src/graphene-vectors.c:834
 #2 _cogl_util_get_eye_planes_for_screen_poly.constprop.0 at ../clutter/clutter/clutter-stage.c:752
 #3 setup_view_for_pick_or_paint at ../clutter/clutter/clutter-stage.c:828
 #4 clutter_stage_do_paint_view at ../clutter/clutter/clutter-stage.c:850
 #5 meta_stage_paint_view at ../src/backends/meta-stage.c:259
 #6 clutter_stage_paint_view at ../clutter/clutter/clutter-stage.c:875
 #7 paint_stage at ../clutter/clutter/cogl/clutter-stage-cogl.c:411
 #8 clutter_stage_cogl_redraw_view_primary at ../clutter/clutter/cogl/clutter-stage-cogl.c:604
 #9 clutter_stage_cogl_redraw_view at ../clutter/clutter/cogl/clutter-stage-cogl.c:699
Comment 1 Nicolas Chauvet (kwizart) 2020-10-19 08:37:56 UTC 
Created attachment 1722575 [details]
File: backtrace
Comment 2 Nicolas Chauvet (kwizart) 2020-10-19 08:37:58 UTC 
Created attachment 1722576 [details]
File: core_backtrace
Comment 3 Nicolas Chauvet (kwizart) 2020-10-19 08:38:00 UTC 
Created attachment 1722577 [details]
File: cpuinfo
Comment 4 Nicolas Chauvet (kwizart) 2020-10-19 08:38:02 UTC 
Created attachment 1722578 [details]
File: dso_list
Comment 5 Nicolas Chauvet (kwizart) 2020-10-19 08:38:03 UTC 
Created attachment 1722579 [details]
File: environ
Comment 6 Nicolas Chauvet (kwizart) 2020-10-19 08:38:04 UTC 
Created attachment 1722580 [details]
File: exploitable
Comment 7 Nicolas Chauvet (kwizart) 2020-10-19 08:38:06 UTC 
Created attachment 1722581 [details]
File: limits
Comment 8 Nicolas Chauvet (kwizart) 2020-10-19 08:38:08 UTC 
Created attachment 1722582 [details]
File: maps
Comment 9 Nicolas Chauvet (kwizart) 2020-10-19 08:38:09 UTC 
Created attachment 1722583 [details]
File: mountinfo
Comment 10 Nicolas Chauvet (kwizart) 2020-10-19 08:38:11 UTC 
Created attachment 1722584 [details]
File: open_fds
Comment 11 Nicolas Chauvet (kwizart) 2020-10-19 08:38:12 UTC 
Created attachment 1722585 [details]
File: proc_pid_status
Comment 12 Nicolas Chauvet (kwizart) 2020-10-19 08:38:14 UTC 
Created attachment 1722586 [details]
File: var_log_messages
Comment 13 Nicolas Chauvet (kwizart) 2020-10-19 09:17:51 UTC 
Note that I'm using a non-default /proc/cpu/alignment option (echo 3 or 5) to generate the SIGBUS.

I've noted that from kernel.log, from an earlier SIGBUS.
--
oct. 18 18:02:04 jetson-tk1 kernel: Alignment trap: gnome-shell (2585) PC=0xb3441ed0 Instr=0xf4400aef Address=0x01a41458 FSR 0x811
oct. 18 18:02:04 jetson-tk1 kernel: Alignment trap: not handling instruction f4400aef at [<b3441ed0>]
oct. 18 18:02:04 jetson-tk1 kernel: 8<--- cut here ---
oct. 18 18:02:04 jetson-tk1 kernel: Unhandled fault: alignment exception (0x811) at 0x01a41458
oct. 18 18:02:04 jetson-tk1 kernel: pgd = f3dd6879
oct. 18 18:02:04 jetson-tk1 kernel: [01a41458] *pgd=ba323835
oct. 18 18:02:05 jetson-tk1 kernel: Alignment trap: gnome-shell (2585) PC=0xb3442008 Instr=0xf4612aef Address=0x01a41458 FSR 0x011
oct. 18 18:02:05 jetson-tk1 kernel: Alignment trap: not handling instruction f4612aef at [<b3442008>]
oct. 18 18:02:05 jetson-tk1 kernel: 8<--- cut here ---
oct. 18 18:02:05 jetson-tk1 kernel: Unhandled fault: alignment exception (0x011) at 0x01a41458
oct. 18 18:02:06 jetson-tk1 kernel: pgd = f3dd6879
oct. 18 18:02:06 jetson-tk1 kernel: [01a41458] *pgd=ba323835è
--- 

Note sure how to read this, but the Instruction looks, but the Instruction address looks located in libEGL.so. I don't see libEGL been used directly in the bt...

b332e000-b333a000 r-xp 00000000 00:1d 433142     /usr/lib/libEGL.so.1.1.0
b333a000-b334a000 ---p 0000c000 00:1d 433142     /usr/lib/libEGL.so.1.1.0
b334a000-b334b000 r--p 0000c000 00:1d 433142     /usr/lib/libEGL.so.1.1.0
b334b000-b334c000 rw-p 0000d000 00:1d 433142     /usr/lib/libEGL.so.1.1.0
Comment 14 Nicolas Chauvet (kwizart) 2020-10-21 12:21:37 UTC 
re-assigned to gcc, as arm_neon.h is from there.
Comment 15 Nicolas Chauvet (kwizart) 2021-03-10 08:14:37 UTC 
I've reported an issue in graphene upstream that is compiled with neon by default.
This should have worked on the jetson-tk1 that has neon support, but for some reason, the neon code

https://github.com/ebassi/graphene/issues/215
This was reported at rhbz#1937023

I also saw a previous rhbz related gcc for graphene neon been mis-compiled...

*** This bug has been marked as a duplicate of bug 1937023 ***
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