Ubuntu
sddm package

sddm-greeter crashed with SIGSEGV

Bug #1497290 reported by Philip Muškovac on 2015-09-18

10

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	sddm (Ubuntu)	Confirmed	Medium	Unassigned

Bug Description

Happens after installing a bunch of updates on wily.
I also had the canonical-x/x-staging PPA enabled recently, but the crash still happens even after purging that.

ProblemType: Crash
DistroRelease: Ubuntu 15.10
Package: sddm 0.11.0-0ubuntu11
ProcVersionSignature: Ubuntu 4.2.0-10.11-generic 4.2.0
Uname: Linux 4.2.0-7-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.18.1-0ubuntu1
Architecture: amd64
Date: Mon Sep 14 18:14:33 2015
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/sddm-greeter
InstallationDate: Installed on 2015-07-20 (59 days ago)
InstallationMedia: Kubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
ProcCmdline: /usr/bin/sddm-greeter --socket /tmp/sddm-:0-yjfESG --theme /usr/share/sddm/themes/breeze
SegvAnalysis: Failure: Unknown offset literal: [rax+0x18]
Signal: 11
SourcePackage: sddm
StacktraceTop:
?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
Title: sddm-greeter crashed with SIGSEGV
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

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Revision history for this message

Philip Muškovac (yofel) wrote on 2015-09-18:

#1

Dependencies.txt Edit (17.5 KiB, text/plain; charset="utf-8")
Disassembly.txt Edit (677 bytes, text/plain; charset="utf-8")
JournalErrors.txt Edit (38.6 KiB, text/plain; charset="utf-8")
ProcEnviron.txt Edit (291 bytes, text/plain; charset="utf-8")
ProcMaps.txt Edit (35.2 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (871 bytes, text/plain; charset="utf-8")
Registers.txt Edit (719 bytes, text/plain; charset="utf-8")
Stacktrace.txt Edit (1.8 KiB, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (3.1 KiB, text/plain; charset="utf-8")

Revision history for this message

Apport retracing service (apport) wrote on 2015-09-18:

#2

StacktraceTop:
root (this=0x0) at qxcbscreen.h:81
QXcbWMSupport::updateNetWMAtoms (this=this@entry=0x1c96fe0) at qxcbwmsupport.cpp:59
QXcbWMSupport::QXcbWMSupport (this=0x1c96fe0, c=<optimized out>) at qxcbwmsupport.cpp:44
QXcbConnection::QXcbConnection (this=0x1c88b60, nativeInterface=0x1c7eb70, canGrabServer=<optimized out>, displayName=0x0) at qxcbconnection.cpp:395
QXcbIntegration::QXcbIntegration (this=0x1c7e6f0, parameters=..., argc=@0x7fff84c3980c: 5, argv=0x7fff84c399b8) at qxcbintegration.cpp:174

Revision history for this message

Apport retracing service (apport) wrote on 2015-09-18: Stacktrace.txt

#3

Stacktrace.txt Edit (6.4 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2015-09-18: StacktraceSource.txt

#4

StacktraceSource.txt Edit (3.7 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2015-09-18: ThreadStacktrace.txt

#5

ThreadStacktrace.txt Edit (8.2 KiB, text/plain)

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

Revision history for this message

Philip Muškovac (yofel) wrote on 2015-09-18:

#6

So, purging and reinstalling the nvidia driver fixed it. Lib mismatch somewhere I guess...

Changed in sddm (Ubuntu):
status:	New → Invalid

Revision history for this message

Philip Muškovac (yofel) wrote on 2015-09-18:

#7

Ok, reliably happens with nvidia-352 when using the nvidia profile

Changed in sddm (Ubuntu):
status:	Invalid → New
information type:	Private → Public

Revision history for this message

Philip Muškovac (yofel) wrote on 2015-10-08:

#8

Ok, now I even had that crash with nvidia using the intel profile, fix was to uninstall the nvidia driver. Weird..

Revision history for this message

Matteo Croce (teknoraver) wrote on 2016-03-25:

#9

Same issue with Xenial and Intel card

[ 235.068210] traps: sddm-greeter[1850] trap invalid opcode ip:7f109c1e60d1 sp:7ffe1efab360 error:0
[ 323.434385] traps: sddm-greeter[1955] trap invalid opcode ip:7fc20db120d1 sp:7ffc4012ede0 error:0
[ 330.395388] traps: sddm[1835] trap invalid opcode ip:7fb72d7846a0 sp:7ffdc131acd8 error:0 in libQt5Core.so.5.5.1[7fb72d42b000+4c5000]
[ 336.848849] sddm[2037]: segfault at fffffffffe306be6 ip fffffffffe306be6 sp 00007ffefb1a17d8 error 15
[ 343.379775] sddm[2092]: segfault at 0 ip 00007f287838d693 sp 00007ffca0e0e100 error 4 in libQt5Core.so.5.5.1[7f28780d2000+4c5000]
[ 347.903214] traps: sddm-greeter[2177] trap invalid opcode ip:7fcc9c0400d1 sp:7fff24d467e0 error:0
[ 359.387730] traps: sddm-greeter[2245] trap invalid opcode ip:7f4840b9d0d1 sp:7ffd5437cb40 error:0
[ 365.088913] traps: sddm-greeter[2309] trap invalid opcode ip:7f24b4ea50d1 sp:7ffe12d8f500 error:0
[ 372.355790] traps: sddm-greeter[2374] trap invalid opcode ip:7f381755f0d1 sp:7ffdbb839dc0 error:0

$ lspci -nn |grep VGA
00:02.0 VGA compatible controller [0300]: Intel Corporation Sky Lake Integrated Graphics [8086:1912] (rev 06)

Changed in sddm (Ubuntu):
status:	New → Confirmed

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