https://bugs.kde.org/show_bug.cgi?id=356828
Bug ID: 356828
Summary: kscreenlocker_g crashes with SIGABRT, continually
dumps core
Product: kscreenlocker
Version: unspecified
Platform: openSUSE RPMs
OS: Linux
Status: UNCONFIRMED
Severity: crash
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: robert.munte...@gmail.com
CC: bhus...@gmail.com, mgraess...@kde.org
Using plasma5-workspace-5.4.3-1.1.x86_64 on openSUSE Tumbleweed x86_64. When
trying to lock the screen the image freezes - no lock screen appears and I am
only able to move the mouse but not input anything.
Switching to another VT and running 'top' shows that I have 7-8 coredumpctl
processes running at the same time.
I'm running a W541 Lenovo Laptop using the Intel video card only - neither
nouveau nor the nvidia proprietary drivers are installed.
Reproducible: Always
Steps to Reproduce:
Try to lock the screen.
Here's a core dump summary from coredumpctl
PID: 29049 (kscreenlocker_g)
UID: 1000 (robert)
GID: 100 (users)
Signal: 6 (ABRT)
Timestamp: Thu 2015-12-17 14:21:36 EET (22min ago)
Command Line: /usr/lib64/libexec/kscreenlocker_greet --immediateLock --ksldfd
52
Executable: /usr/lib64/libexec/kscreenlocker_greet
Control Group: /user.slice/user-1000.slice/session-13.scope
Unit: session-13.scope
Slice: user-1000.slice
Session: 13
Owner UID: 1000 (robert)
Boot ID: fa49e85f2ebf4f31b00f5e04300e9e6d
Machine ID: 87f0790206514af7a87d17a290547703
Hostname: rombert.corp.adobe.com
Coredump:
/var/lib/systemd/coredump/core.kscreenlocker_g.1000.fa49e85f2ebf4f31b00f5e04300e9e6d.29049.1450354896000000.xz
Message: Process 29049 (kscreenlocker_g) of user 1000 dumped core.
The gdb backtrace shows
#0 0x00007f3e830e8d38 in __GI_raise (sig=sig@entry=6) at
../sysdeps/unix/sysv/linux/raise.c:55
#1 0x00007f3e830ea18a in __GI_abort () at abort.c:78
#2 0x00007f3e8387482e in qt_message_fatal (context=..., message=<synthetic
pointer>) at global/qlogging.cpp:1578
#3 QMessageLogger::fatal (this=this@entry=0x7fffa1142d60,
msg=msg@entry=0x7f3e72e093e8 "QXcbConnection: Could not connect to display %s")
at global/qlogging.cpp:781
#4 0x00007f3e72d93ad0 in QXcbConnection::QXcbConnection (this=0x237a920,
nativeInterface=0x2374420, canGrabServer=<optimized out>,
defaultVisualId=<optimized out>, displayName=0x0) at qxcbconnection.cpp:511
#5 0x00007f3e72d99125 in QXcbIntegration::QXcbIntegration (this=<optimized
out>, parameters=..., argc=@0x7fffa11431fc: 4, argv=0x7fffa11434e8) at
qxcbintegration.cpp:177
#6 0x00007f3e7306e4cd in QXcbIntegrationPlugin::create (this=<optimized out>,
system=..., parameters=..., argc=@0x7fffa11431fc: 4, argv=0x7fffa11434e8) at
qxcbmain.cpp:50
#7 0x00007f3e83f8a1d2 in loadIntegration (argv=0x7fffa11434e8,
argc=@0x7fffa11431fc: 4, parameters=..., key=..., loader=0x7f3e845d4bf0
<_ZZN12_GLOBAL__N_112Q_QGS_loader13innerFunctionEvE6holder>) at
kernel/qplatformintegrationfactory.cpp:56
#8 QPlatformIntegrationFactory::create (platform=..., paramList=...,
argc=@0x7fffa11431fc: 4, argv=argv@entry=0x7fffa11434e8,
platformPluginPath=...) at kernel/qplatformintegrationfactory.cpp:73
#9 0x00007f3e83f956d2 in init_platform (argv=0x7fffa11434e8, argc=<optimized
out>, platformThemeName=..., platformPluginPath=..., pluginArgument=...) at
kernel/qguiapplication.cpp:1019
#10 QGuiApplicationPrivate::createPlatformIntegration (this=0x236c730) at
kernel/qguiapplication.cpp:1176
#11 0x00007f3e83f965dd in QGuiApplicationPrivate::createEventDispatcher
(this=<optimized out>) at kernel/qguiapplication.cpp:1193
#12 0x00007f3e83a5bfc6 in QCoreApplication::init
(this=this@entry=0x7fffa11432b0) at kernel/qcoreapplication.cpp:768
#13 0x00007f3e83a5c026 in QCoreApplication::QCoreApplication
(this=0x7fffa11432b0, p=...) at kernel/qcoreapplication.cpp:689
#14 0x00007f3e83f9811d in QGuiApplication::QGuiApplication
(this=0x7fffa11432b0, argc=@0x7fffa11431fc: 4, argv=0x7fffa11434e8,
flags=328961) at kernel/qguiapplication.cpp:558
#15 0x00000000004136f5 in ScreenLocker::UnlockApp::UnlockApp
(this=0x7fffa11432b0, argc=<optimized out>, argv=<optimized out>) at
/usr/src/debug/plasma-workspace-5.4.3/ksmserver/screenlocker/greeter/greeterapp.cpp:80
#16 0x000000000040dd43 in main (argc=4, argv=0x7fffa11434e8) at
/usr/src/debug/plasma-workspace-5.4.3/ksmserver/screenlocker/greeter/main.cpp:58
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