Bug 1387920 - Segmentation fault
Summary: Segmentation fault
Keywords:
Status: CLOSED EOL
Alias: None
Product: Fedora
Classification: Fedora
Component: kscreenlocker
Version: 24
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Daniel Vrátil
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-10-23 16:37 UTC by Sergei LITVINENKO
Modified: 2017-08-08 18:58 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2017-08-08 18:58:40 UTC
Type: Bug


Attachments (Terms of Use)

Description Sergei LITVINENKO 2016-10-23 16:37:13 UTC
Description of problem:

kscreenlocker_greet crash with Segmentation fault

Version-Release number of selected component (if applicable):

kscreenlocker-5.7.5-1.fc24.x86_64

How reproducible:
100%

Steps to Reproduce:
1. Start /usr/libexec/kscreenlocker_greet
2. Enter password
3. see the message

Actual results:

Greeter crash.
In case if it is started in standard way, it is not possible to unlock screen


Expected results:

work as usually

Additional info:


[sergeil@homedesk ~]$ gdb /usr/libexec/kscreenlocker_greet 
GNU gdb (GDB) Fedora 7.11.1-86.fc24
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /usr/libexec/kscreenlocker_greet...Reading symbols from /usr/libexec/kscreenlocker_greet...(no debugging symbols found)...done.
(no debugging symbols found)...done.
Missing separate debuginfos, use: dnf debuginfo-install kscreenlocker-5.7.5-1.fc24.x86_64
(gdb) run
Starting program: /usr/libexec/kscreenlocker_greet 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Error while mapping shared library sections:
/proc/7928/ns/mnt: Permission denied.
...
Error while mapping shared library sections:
/proc/7928/ns/mnt: Permission denied.
...
Error while mapping shared library sections:
/proc/7928/ns/mnt: Permission denied.
[New Thread 0x7fffde5a2700 (LWP 7932)]
Error while mapping shared library sections:
/proc/7928/ns/mnt: Permission denied.
...
Error while mapping shared library sections:
/proc/7928/ns/mnt: Permission denied.
Error while mapping shared library sections:
/proc/7928/ns/mnt: Permission denied.
Error while mapping shared library sections:
/proc/7928/ns/mnt: Permission denied.
...
Error while mapping shared library sections:
/proc/7928/ns/mnt: Permission denied.
Error while mapping shared library sections:
/proc/7928/ns/mnt: Permission denied.
[New Thread 0x7fffd2eef700 (LWP 7933)]
Error while mapping shared library sections:
/proc/7928/ns/mnt: Permission denied.
...
Locked at 1477239585
[New Thread 0x7fffc9f46700 (LWP 7936)]
Error while mapping shared library sections:
/proc/7928/ns/mnt: Permission denied.
Error while mapping shared library sections:
/proc/7928/ns/mnt: Permission denied.
...
Error while mapping shared library sections:
/proc/7928/ns/mnt: Permission denied.
Error while mapping shared library sections:
/proc/7928/ns/mnt: Permission denied.
file:///usr/share/plasma/look-and-feel/org.fedoraproject.fedora.twenty.four/contents/components/UserDelegate.qml:82:9: QML Image: Cannot open: file:///usr/share/plasma/look-and-feel/org.fedoraproject.fedora.twenty.four/contents/components/user-identity
file:///usr/share/plasma/look-and-feel/org.fedoraproject.fedora.twenty.four/contents/components/UserDelegate.qml:82:9: QML Image: Cannot open: file:///usr/share/plasma/look-and-feel/org.fedoraproject.fedora.twenty.four/contents/components/system-log-out
file:///usr/share/plasma/look-and-feel/org.fedoraproject.fedora.twenty.four/contents/components/UserDelegate.qml:82:9: QML Image: Cannot open: file:///usr/share/plasma/look-and-feel/org.fedoraproject.fedora.twenty.four/contents/components/system-switch-user
file:///usr/lib64/qt5/qml/QtQuick/Controls/Styles/Base/ButtonStyle.qml:150:31: QML Item: Binding loop detected for property "implicitWidth"
Detaching after fork from child process 7938.
[Thread 0x7fffd2eef700 (LWP 7933) exited]
[Thread 0x7fffc9f46700 (LWP 7936) exited]
[Thread 0x7fffde5a2700 (LWP 7932) exited]
[Thread 0x7fffd0d02700 (LWP 7934) exited]

Thread 1 "kscreenlocker_g" received signal SIGSEGV, Segmentation fault.
0x00007ffff2fd29a0 in pthread_mutex_lock () from /lib64/libpthread.so.0
(gdb)

Comment 1 Fedora End Of Life 2017-07-25 23:34:51 UTC
This message is a reminder that Fedora 24 is nearing its end of life.
Approximately 2 (two) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 24. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as EOL if it remains open with a Fedora  'version'
of '24'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version'
to a later Fedora version.

Thank you for reporting this issue and we are sorry that we were not
able to fix it before Fedora 24 is end of life. If you would still like
to see this bug fixed and are able to reproduce it against a later version
of Fedora, you are encouraged  change the 'version' to a later Fedora
version prior this bug is closed as described in the policy above.

Although we aim to fix as many bugs as possible during every release's
lifetime, sometimes those efforts are overtaken by events. Often a
more recent Fedora release includes newer upstream software that fixes
bugs or makes them obsolete.

Comment 2 Fedora End Of Life 2017-08-08 18:58:40 UTC
Fedora 24 changed to end-of-life (EOL) status on 2017-08-08. Fedora 24 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version. If you
are unable to reopen this bug, please file a new report against the
current release. If you experience problems, please add a comment to this
bug.

Thank you for reporting this bug and we are sorry it could not be fixed.


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