Ubuntu
libinput package

Xorg assert failure: Xorg: ../src/evdev-mt-touchpad-tap.c:1002: tp_tap_handle_state: Assertion `tp->tap.nfingers_down > 0' failed.

Bug #1751086 reported by Domenico Verde on 2018-02-22

This bug affects 3 people

Affects		Status	Importance	Assigned to	Milestone
	libinput	Fix Released	Medium	freedesktop-bugs #105407
	libinput (Ubuntu)	Fix Released	High	Unassigned

Bug Description

I found this bug while cleaning my touchpad. Pressing and moving it, it started to move cursor until it stopped moving for multitouch gestures. While pressing and moving my finger quickly, Xorg crashed and it showed some colored and short lines on the upper left part of the display. This, if done again, forces to crash.

ProblemType: Crash
DistroRelease: Ubuntu 18.04
Package: xserver-xorg-core 2:1.19.6-1ubuntu1
ProcVersionSignature: Ubuntu 4.13.0-36.40-generic 4.13.13
Uname: Linux 4.13.0-36-generic x86_64
ApportVersion: 2.20.8-0ubuntu10
Architecture: amd64
AssertionMessage: Xorg: ../src/evdev-mt-touchpad-tap.c:1002: tp_tap_handle_state: Assertion `tp->tap.nfingers_down > 0' failed.
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CrashCounter: 1
CurrentDesktop: ubuntu:GNOME
Date: Thu Feb 22 16:42:55 2018
DistUpgraded: 2018-02-22 16:14:14,915 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py'
DistroCodename: bionic
DistroVariant: ubuntu
DkmsStatus:
r8168, 8.045.08, 4.13.0-32-generic, x86_64: installed
r8168, 8.045.08, 4.13.0-36-generic, x86_64: installed
ExecutablePath: /usr/lib/xorg/Xorg
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation HD Graphics 520 [8086:1916] (rev 07) (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company HD Graphics 520 [103c:8136]
Subsystem: Hewlett-Packard Company Radeon R5 M330 [103c:8136]
InstallationDate: Installed on 2017-11-23 (90 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
MachineType: HP HP Notebook
ProcCmdline: /usr/lib/xorg/Xorg vt2 -displayfd 3 -auth /run/user/1000/gdm/Xauthority -background none -noreset -keeptty -verbose 3
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-36-generic.efi.signed root=UUID=b2348b07-e7c3-4656-8070-b4693379c731 ro quiet splash vt.handoff=1
Signal: 6
SourcePackage: xorg-server
StacktraceTop:
__assert_fail_base (fmt=<optimized out>, assertion=assertion@entry=0x7fa4955ef13b "tp->tap.nfingers_down > 0", file=file@entry=0x7fa4955ef178 "../src/evdev-mt-touchpad-tap.c", line=line@entry=1002, function=function@entry=0x7fa4955ef470 "tp_tap_handle_state") at assert.c:92
__GI___assert_fail (assertion=0x7fa4955ef13b "tp->tap.nfingers_down > 0", file=0x7fa4955ef178 "../src/evdev-mt-touchpad-tap.c", line=1002, function=0x7fa4955ef470 "tp_tap_handle_state") at assert.c:101
() at /usr/lib/x86_64-linux-gnu/libinput.so.10
() at /usr/lib/x86_64-linux-gnu/libinput.so.10
() at /usr/lib/x86_64-linux-gnu/libinput.so.10
Title: Xorg assert failure: Xorg: ../src/evdev-mt-touchpad-tap.c:1002: tp_tap_handle_state: Assertion `tp->tap.nfingers_down > 0' failed.
UpgradeStatus: Upgraded to bionic on 2018-02-22 (0 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 12/25/2015
dmi.bios.vendor: Insyde
dmi.bios.version: F.1E
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 8136
dmi.board.vendor: HP
dmi.board.version: 31.35
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsyde:bvrF.1E:bd12/25/2015:svnHP:pnHPNotebook:pvrType1ProductConfigId:rvnHP:rn8136:rvr31.35:cvnHP:ct10:cvrChassisVersion:
dmi.product.family: 103C_5335KV G=N L=CON B=HP
dmi.product.name: HP Notebook
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: HP
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.90-1
version.libgl1-mesa-dri: libgl1-mesa-dri 17.3.3-0ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx 17.3.3-0ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.10.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2

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Revision history for this message

Domenico Verde (lordribblesdale) wrote on 2018-02-22:

BootLog.txt Edit (9.7 KiB, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (103.9 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (4.8 KiB, text/plain; charset="utf-8")
Disassembly.txt Edit (947 bytes, text/plain; charset="utf-8")
DpkgLog.txt Edit (1.4 MiB, text/plain; charset="utf-8")
JournalErrors.txt Edit (4.5 KiB, text/plain; charset="utf-8")
Lspci.txt Edit (11.5 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (408 bytes, text/plain; charset="utf-8")
MonitorsUser.xml.txt Edit (551 bytes, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (4.8 KiB, text/plain; charset="utf-8")
ProcCpuinfoMinimal.txt Edit (1.2 KiB, text/plain; charset="utf-8")
ProcEnviron.txt Edit (290 bytes, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (2.6 KiB, text/plain; charset="utf-8")
ProcMaps.txt Edit (53.9 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (7.2 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (1.3 KiB, text/plain; charset="utf-8")
Registers.txt Edit (734 bytes, text/plain; charset="utf-8")
Stacktrace.txt Edit (3.8 KiB, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (21.6 KiB, text/plain; charset="utf-8")
UdevDb.txt Edit (191.8 KiB, text/plain; charset="utf-8")
XorgLog.txt Edit (66.7 KiB, text/plain; charset="utf-8")
XorgLogOld.txt Edit (68.8 KiB, text/plain; charset="utf-8")
Xrandr.txt Edit (18.4 KiB, text/plain; charset="utf-8")
xdpyinfo.txt Edit (16.5 KiB, text/plain; charset="utf-8")

Revision history for this message

Apport retracing service (apport) wrote on 2018-02-22:

StacktraceTop:
__GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
__GI_abort () at abort.c:90
__assert_fail_base (fmt=<optimized out>, assertion=assertion@entry=0x7fa4955ef13b "tp->tap.nfingers_down > 0", file=file@entry=0x7fa4955ef178 "../src/evdev-mt-touchpad-tap.c", line=line@entry=1002, function=function@entry=0x7fa4955ef470 <__PRETTY_FUNCTION__.10084> "tp_tap_handle_state") at assert.c:92
__GI___assert_fail (assertion=assertion@entry=0x7fa4955ef13b "tp->tap.nfingers_down > 0", file=file@entry=0x7fa4955ef178 "../src/evdev-mt-touchpad-tap.c", line=line@entry=1002, function=function@entry=0x7fa4955ef470 <__PRETTY_FUNCTION__.10084> "tp_tap_handle_state") at assert.c:101
tp_tap_handle_state (tp=tp@entry=0x562a5fbf89e0, time=time@entry=1652749044) at ../src/evdev-mt-touchpad-tap.c:1002

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Apport retracing service (apport) wrote on 2018-02-22: Stacktrace.txt

Stacktrace.txt Edit (12.2 KiB, text/plain)

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Apport retracing service (apport) wrote on 2018-02-22: StacktraceSource.txt

StacktraceSource.txt Edit (6.8 KiB, text/plain)

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Apport retracing service (apport) wrote on 2018-02-22: ThreadStacktrace.txt

ThreadStacktrace.txt Edit (38.5 KiB, text/plain)

Changed in xorg-server (Ubuntu):
importance:	Undecided → Medium
tags:	removed: need-amd64-retrace

Revision history for this message

Sebastien Bacher (seb128) wrote on 2018-02-22:

thank for your bug report, that's a known libinput issue, a fix has been commited upstream recently, see https://bugs.freedesktop.org/show_bug.cgi?id=105160

information type:	Private → Public
affects:	xorg-server (Ubuntu) → libinput (Ubuntu)
Changed in libinput (Ubuntu):
status:	New → Fix Committed
importance:	Medium → High

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2018-02-23:

Interesting it's a different assertion to bug 1750664. But hopefully the same fix applies?

Changed in libinput (Ubuntu):
status:	Fix Committed → Confirmed

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2018-02-23:

P.S. Nothing has been committed or even proposed to Ubuntu yet. So not Fix Committed yet.

Bug Watch Updater (bug-watch-updater) on 2018-03-09

Changed in libinput:
importance:	Unknown → Medium
status:	Unknown → Confirmed

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2018-03-09:

Tracking upstream in:
https://bugs.freedesktop.org/show_bug.cgi?id=105407

Bug Watch Updater (bug-watch-updater) on 2018-03-11

Changed in libinput:
status:	Confirmed → Incomplete

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2018-03-12:

#10

Now tracking upstream in:
https://bugs.freedesktop.org/show_bug.cgi?id=105258

Changed in libinput:
importance:	Medium → Unknown
status:	Incomplete → Unknown

Bug Watch Updater (bug-watch-updater) on 2018-03-12

Changed in libinput:
importance:	Unknown → Medium
status:	Unknown → Fix Released

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2018-03-13:

#11

Make that https://bugs.freedesktop.org/show_bug.cgi?id=105407
Again.

Changed in libinput:
importance:	Medium → Unknown
status:	Fix Released → Unknown

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2018-03-13:

#12

Incomplete. Looks like it came from an older version of libinput so we'll wait and see if this reoccurs or has already been fixed.

Changed in libinput (Ubuntu):
status:	Confirmed → Incomplete

Bug Watch Updater (bug-watch-updater) on 2018-03-14

Changed in libinput:
importance:	Unknown → Medium
status:	Unknown → Invalid

Revision history for this message

Andreas Hasenack (ahasenack) wrote on 2018-03-20:

#13

swipe-of-death.mp4 Edit (2.8 MiB, video/mp4)

Download full text (4.6 KiB)

I can trigger this reliably with my thinkpad X1 5th gen on bionic's xorg:
Mar 20 11:08:19 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (II) Axis 0x35 value 0 is outside expected range [1045, 5896]
Mar 20 11:08:19 nsnx /usr/lib/gdm3/gdm-x-session[16817]: See https://wayland.freedesktop.org/libinput/doc/1.10.1//absolute_coordinate_ranges.html for details
Mar 20 11:08:19 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) event5  - SynPS/2 Synaptics TouchPad: libinput bug: invalid tap event TAP_EVENT_PALM in state TAP_STATE_TAPPED
Mar 20 11:08:19 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) event5  - SynPS/2 Synaptics TouchPad: libinput bug: invalid tap event TAP_EVENT_PALM in state TAP_STATE_TAPPED
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: Xorg: ../src/evdev-mt-touchpad-tap.c:1002: tp_tap_handle_state: Assertion `tp->tap.nfingers_down > 0' failed.
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE)
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) Backtrace:
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) 0: /usr/lib/xorg/Xorg (xorg_backtrace+0x4d) [0x565247c457fd]
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) 1: /usr/lib/xorg/Xorg (0x565247a8d000+0x1bc599) [0x565247c49599]
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f28775c1000+0x12890) [0x7f28775d3890]
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) 3: /lib/x86_64-linux-gnu/libc.so.6 (gsignal+0xc7) [0x7f287720ee97]
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) 4: /lib/x86_64-linux-gnu/libc.so.6 (abort+0x141) [0x7f2877210801]
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) 5: /lib/x86_64-linux-gnu/libc.so.6 (0x7f28771d0000+0x3039a) [0x7f287720039a]
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) 6: /lib/x86_64-linux-gnu/libc.so.6 (0x7f28771d0000+0x30412) [0x7f2877200412]
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) 7: /usr/lib/x86_64-linux-gnu/libinput.so.10 (0x7f28741aa000+0x1da40) [0x7f28741c7a40]
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) 8: /usr/lib/x86_64-linux-gnu/libinput.so.10 (0x7f28741aa000+0x18e17) [0x7f28741c2e17]
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) 9: /usr/lib/x86_64-linux-gnu/libinput.so.10 (0x7f28741aa000+0x1ad90) [0x7f28741c4d90]
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) 10: /usr/lib/x86_64-linux-gnu/libinput.so.10 (0x7f28741aa000+0xf5e1) [0x7f28741b95e1]
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) 11: /usr/lib/x86_64-linux-gnu/libinput.so.10 (libinput_dispatch+0x5f) [0x7f28741b560f]
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) 12: /usr/lib/xorg/modules/input/libinput_drv.so (0x7f28743fa000+0x8988) [0x7f2874402988]
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) 13: /usr/lib/xorg/Xorg (0x565247a8d000+0x1ba973) [0x565247c47973]
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) 14: /usr/lib/xorg/Xorg (0x565247a8d000+0x1bd071) [0x565247c4a071]
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) 15: /usr/lib/xorg/Xorg (0x565247a8d000+0x1ba7be) [0x565247c477be]
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) 16: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f28775c1000+0x76db) [0x7f28775c86db]
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) 17: /lib/x86_64-linux-gnu/libc.so.6 (clone+0x3f) [0x7f28772f188f]
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE)
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE)
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: Fatal server error:
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) Caught signal 6 (Aborted). Server aborting
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE)
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE)
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: Please consult the The X.Org Foundation support
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: #011 at http://wiki.x.org
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]:  for help.
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) Please also check the log file at "/home/andreas/.local/share/xorg/Xorg.0.log" for additional information.
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE)
Mar 20 11:08:29 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (II) AIGLX: Suspending AIGLX clients for VT switch
Mar 20 11:08:30 nsnx /usr/lib/gdm3/gdm-x-session[16817]: (EE) Server terminated with error (1). Closing log file.

All I need to do is swipe my palm from left to right over the touchpad.

Changed in libinput (Ubuntu):
status:	Incomplete → Confirmed

Revision history for this message

Andreas Hasenack (ahasenack) wrote on 2018-03-20:

#14

xserver-xorg 1:7.7+19ubuntu5 currently

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2018-03-21:

#15

Andreas,

Please update your system and wait till you get the new version of libinput: 1.10.3-2
And then retest.

Revision history for this message

Andreas Hasenack (ahasenack) wrote on 2018-03-21:

#16

With libinput 1.10.3-2, the crash doesn't happen anymore. I just get these EE lines in /var/log/syslog when I repeat the gesture that previously crashed it (and these were there with the older libinput as well):

Mar 21 08:50:26 nsnx /usr/lib/gdm3/gdm-x-session[4968]: (EE) event5 - SynPS/2 Synaptics TouchPad: kernel bug: Touch jump detected and discarded.
Mar 21 08:50:26 nsnx /usr/lib/gdm3/gdm-x-session[4968]: See https://wayland.freedesktop.org/libinput/doc/1.10.3/touchpad_jumping_cursor.html for details
Mar 21 08:50:27 nsnx /usr/lib/gdm3/gdm-x-session[4968]: (EE) event5 - SynPS/2 Synaptics TouchPad: kernel bug: Touch jump detected and discarded.
Mar 21 08:50:27 nsnx /usr/lib/gdm3/gdm-x-session[4968]: See https://wayland.freedesktop.org/libinput/doc/1.10.3/touchpad_jumping_cursor.html for details

Daniel van Vugt (vanvugt) on 2018-03-22

Changed in libinput (Ubuntu):
status:	Confirmed → Fix Released

Bug Watch Updater (bug-watch-updater) on 2018-03-24

Changed in libinput:
status:	Invalid → Fix Released

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freedesktop-bugs #105160
[RESOLVED FIXED] Edit
freedesktop-bugs #105258
[RESOLVED FIXED] Edit
freedesktop-bugs #105407
[RESOLVED FIXED] Edit

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Ubuntulibinput package

Xorg assert failure: Xorg: ../src/evdev-mt-touchpad-tap.c:1002: tp_tap_handle_state: Assertion `tp->tap.nfingers_down > 0' failed.

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