Public bug reported:
Xorg crashes, session closes, all unsaved data is gone.
What I did / Reproducing
===========================
It happens when I use Easystrokes to emulate `Ctrl+F4` or
`Ctrl+PageUp/Down`.
So far it happened about 5 recognized times, 3 recorded within the last
3(?) month. twice during tab switching in incognito Firefox and once in
VSCode.
Reproducability
================
I feel it's very consistent in crashing in Firefox incognito. But it's not
purposely reproducible 100%.
I would give more information, but the stacktrace of the crashdump does
not tell much. I installed debug symbols for xorg, but they made no
change viewing it.
Here is the (obscured) stack trace:
```
Reading symbols from /usr/lib/xorg/Xorg...
Reading symbols from
/usr/lib/debug/.build-id/c1/54f39135c0adc1b59f5b6dd49a73301b4311c8.debug...
[New LWP 100716]
[New LWP 100705]
[New LWP 100704]
[New LWP 100707]
[New LWP 100709]
[New LWP 100708]
[New LWP 100706]
[New LWP 100711]
[New LWP 100710]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
--Type <RET> for more, q to quit, c to continue without paging--
Core was generated by `/usr/lib/xorg/Xorg -core :0 -seat seat0 -auth
/var/run/lightdm/root/:0 -noliste'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x000055a0da61fe9c in miPointerSetPosition (
pDev=pDev@entry=0x55a0dc969400, mode=mode@entry=0,
screenx=screenx@entry=0x7f707b57d570,
screeny=screeny@entry=0x7f707b57d578,
nevents=nevents@entry=0x7f707b57d56c, events=events@entry=0x7f708d903c20)
at ../../../../mi/mipointer.c:610
610 ../../../../mi/mipointer.c: No such file or directory.
[Current thread is 1 (Thread 0x7f707b57f700 (LWP 100716))]
(gdb)
(gdb)
(gdb) bt full
#0 0x000055a0da61fe9c in miPointerSetPosition
(pDev=pDev@entry=0x55a0dc969400, mode=mode@entry=0,
screenx=screenx@entry=0x7f707b57d570, screeny=screeny@entry=0x7f707b57d578,
nevents=nevents@entry=0x7f707b57d56c, events=events@entry=0x7f708d903c20) at
../../../../mi/mipointer.c:610
pScreenPriv = <optimized out>
pScreen = <optimized out>
newScreen = 0x254
x = 802
y = 596
switch_screen = 0
should_constrain_barriers = 0
i = <optimized out>
pPointer = 0x0
#1 0x000055a0da4ec840 in positionSprite
(dev=dev@entry=0x55a0dc969400, mode=mode@entry=0,
mask=mask@entry=0x7f707b57d5c0, devx=devx@entry=0x7f707b57d580,
devy=devy@entry=0x7f707b57d588, screenx=screenx@entry=0x7f707b57d570,
screeny=0x7f707b57d578, nevents=0x7f707b57d56c, events=0x7f708d903c20) at
../../../../dix/getevents.c:961
scr = <optimized out>
tmpx = 801.02961125081322
tmpy = 595.47038874918678
#2 0x000055a0da4ecf4d in positionSprite
(events=0x7f708d903c20, nevents=0x7f707b57d56c, screeny=0x7f707b57d578,
scre--Type <RET> for more, q to quit, c to continue without paging--
enx=0x7f707b57d570, devy=0x7f707b57d588, devx=0x7f707b57d580,
mask=0x7f707b57d5c0, mode=0, dev=0x55a0dc969400) at
../../../../dix/getevents.c:952
scr = 0x0
num_events = 2
event = <optimized out>
raw = 0x7f708d903010
screenx = 801.02961125081322
screeny = 595.47038874918678
devx = 801.02961125081322
devy = 595.47038874918678
sx = 0
sy = 0
mask =
{last_bit = 1 '\001', has_unaccelerated = 0 '\000', mask =
"\003\000\000\000", valuators = {801.02961125081322, 595.47038874918678, 0
<repeats 34 times>}, unaccelerated = {0 <repeats 36 times>}}
scr = <optimized out>
num_barrier_events = 0
#3 fill_pointer_events (events=0x7f708d903c20,
events@entry=0x7f708d903010, pDev=pDev@entry=0x55a0dc969400,
type=<optimized out>, buttons=buttons@entry=0, ms=ms@entry=289728198,
flags=flags@entry=10, mask_in=0x7f707b57d8d0) at
../../../../dix/getevents.c:1434
num_events = 2
--Type <RET> for more, q to quit, c to continue without paging--
event = <optimized out>
raw = 0x7f708d903010
screenx = 801.02961125081322
screeny = 595.47038874918678
devx = 801.02961125081322
devy = 595.47038874918678
sx = 0
sy = 0
mask =
{last_bit = 1 '\001', has_unaccelerated = 0 '\000', mask =
"\003\000\000\000", valuators = {801.02961125081322, 595.47038874918678, 0
<repeats 34 times>}, unaccelerated = {0 <repeats 36 times>}}
scr = <optimized out>
num_barrier_events = 0
#4 0x000055a0da4ee620 in GetPointerEvents
(events=0x7f708d903010, pDev=pDev@entry=0x55a0dc969400, type=<optimized
out>, type@entry=6, buttons=buttons@entry=0, flags=10, mask_in=<optimized out>)
at ../../../../dix/getevents.c:1691
ms = 289728198
num_events = 0
nev_tmp = <optimized out>
mask =
{last_bit = 1 '\001', has_unaccelerated = 1 '\001', mask =
"\003\000--Type <RET> for more, q to quit, c to continue without paging--
\000\000", valuators = {-1, -1.5, 0 <repeats 34 times>}, unaccelerated = {-2,
-3, 0 <repeats 34 times>}}
scroll =
{last_bit = -128 '\200', has_unaccelerated = 4 '\004', mask =
"eݠU", valuators = {6.9229118033614265e-310, 6.9229013081954128e-310,
6.9229118037539122e-310, 4.6515982887994555e-310, 1.4314474937149093e-312,
6.9229013081954128e-310, 1.0223975030841499e-314, 6.9229013084009441e-310,
6.9229018347610921e-310, 0, -2, -3, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1.5, 0,
7.0753833001150517e+231, 0, 4.6515982887994555e-310, 6.9229013081985748e-310,
1.4314474937149093e-312, 6.9229013081954128e-310, 6.9229013084009441e-310,
4.651598497285672e-310, 6.9229018331270194e-310, 0, 4.6515975603949165e-310,
1.4314465143829268e-318}, unaccelerated = {9.7933198253006049e-319, 0, 0, 0, 0,
0, 0, 0, 0, 0, 7.0753833001150517e+231, 0, 6.9229013082035155e-310,
6.9229013082041084e-310, 4.6515975603949165e-310, 4.6515974558340253e-310,
6.9229013082041084e-310, 6.9229013082041084e-310, 6.9229018322623057e-310,
-2.757966908489161e+144, 1.0829918956840124e-319, 0, 0, 0, 0, 0,
4.6515976203673714e-310, 0, 4.651595723632954e-310, 0, 4.651595723632954e-310,
4.6515976203673714e-310, 7.0753833001150517e+231, 4.6515976203673714e-310,
4.651597341764149e-310, 4.6515976203673714e-310}}
i = <optimized out>
realtype = 6
__func__ = "GetPointerEvents"
#5 0x000055a0da4eec24 in QueuePointerEvents
(device=0x55a0dc969400, type=type@entry=6, buttons=buttons@entry=0,
flags=<o--Type <RET> for more, q to quit, c to continue without paging--
ptimized out>, mask=<optimized out>) at ../../../../dix/getevents.c:1290
nevents = <optimized out>
#6 0x000055a0da521f37 in xf86PostMotionEventM
(mask=<optimized out>, is_absolute=21920, device=<optimized out>)
at ../../../../../../hw/xfree86/common/xf86Xinput.c:1281
flags = <optimized out>
#7 xf86PostMotionEventM
(device=<optimized out>, is_absolute=21920, mask=<optimized out>)
at ../../../../../../hw/xfree86/common/xf86Xinput.c:1266
#8 0xc008000000000000 in ()
#9 0xc000000000000000 in ()
#10 0xbff8000000000000 in ()
#11 0xbff0000000000000 in ()
#12 0x000055a0de3fa370 in ()
#13 0x0000000100000002 in ()
#14 0x000055a0de4b3950 in ()
#15 0x000000007c88dd00 in ()
#16 0x000055a0de4b3950 in ()
#17 0x000055a0dc840e60 in ()
#18 0x000055a0dd938400 in ()
#19 0x70123abc7c88dd00 in ()
#20 0x000055a0dc63c370 in ()
#21 0x000055a0dc840e60 in ()
```
lsb_release -rd
=================
Description: Ubuntu 20.04.1 LTS
Release: 20.04
apt-cache policy pkgname
=============================
xorg:
Installed: 1:7.7+19ubuntu14
Candidate: 1:7.7+19ubuntu14
Version table:
*** 1:7.7+19ubuntu14 500
500 http://archive.ubuntu.com/ubuntu focal/main amd64 Packages
100 /var/lib/dpkg/status
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-48.52-generic 5.4.60
Uname: Linux 5.4.0-48-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.9
Architecture: amd64
CasperMD5CheckResult: skip
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: XFCE
Date: Tue Oct 6 20:22:54 2020
DistUpgraded: 2020-07-24 16:16:53,621 ERROR got error from PostInstallScript
./xorg_fix_proprietary.py (g-exec-error-quark: Failed to execute child process
“./xorg_fix_proprietary.py” (No such file or directory) (8))
DistroCodename: focal
DistroVariant: ubuntu
DkmsStatus:
virtualbox, 6.1.10, 5.4.0-48-generic, x86_64: installed
virtualbox, 6.1.10, 5.4.0-49-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA
controller])
Subsystem: Fujitsu Limited. UHD Graphics 620 [10cf:1959]
MachineType: FUJITSU FMVWB3U27
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-48-generic
root=UUID=fe637d00-125b-4a54-adce-3711830d450b ro acpi_osi=! "acpi_osi=Windows
2015" pci=nomsi acpi_osi=Linuxs resume=UUID=8fa6d40f-c23d-497e-9846-f6f26536690d
SourcePackage: xorg
UpgradeStatus: Upgraded to focal on 2020-07-24 (74 days ago)
dmi.bios.date: 01/23/2018
dmi.bios.vendor: FUJITSU // Insyde Software Corp.
dmi.bios.version: Version 1.07
dmi.board.name: FJNB2BB
dmi.board.vendor: FUJITSU
dmi.board.version: A2
dmi.chassis.type: 10
dmi.chassis.vendor: FUJITSU
dmi.modalias:
dmi:bvnFUJITSU//InsydeSoftwareCorp.:bvrVersion1.07:bd01/23/2018:svnFUJITSU:pnFMVWB3U27:pvr:rvnFUJITSU:rnFJNB2BB:rvrA2:cvnFUJITSU:ct10:cvr:
dmi.product.family: LIFEBOOK-JR
dmi.product.name: FMVWB3U27
dmi.sys.vendor: FUJITSU
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.101-2
version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.8-0ubuntu1~20.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 20.0.8-0ubuntu1~20.04.1
version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.6-1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal ubuntu
** Attachment removed: "LightdmDisplayLog.txt"
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1898713/+attachment/5418320/+files/LightdmDisplayLog.txt
--
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https://bugs.launchpad.net/bugs/1898713
Title:
Xorg crashes sometimes with Easystrokes
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