[okular] [Bug 405502] New: Okular crashes when trying to reopen document on unmounted filesystem

[Erik Quaeghebeur]

https://bugs.kde.org/show_bug.cgi?id=405502

            Bug ID: 405502
           Summary: Okular crashes when trying to reopen document on
                    unmounted filesystem
           Product: okular
           Version: 1.5.3
          Platform: Gentoo Packages
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: okular-devel at kde.org
          Reporter: kde at equaeghe.nospammail.net
  Target Milestone: ---

Application: okular (1.5.3)

Qt Version: 5.11.3
Frameworks Version: 5.54.0
Operating System: Linux 4.19.27-gentoo-r1 x86_64
Distribution (Platform): Gentoo Packages

-- Information about the crash:
- What I was doing when the application crashed:

The desktop environment was restarting. Previously, some pdfs were open in
Okular. Before the restart, the filesystem on which those files were located
was unmounted, so they were not there anymore.

I guess Okular should just report that the file is not present instead of
crashing because of it.

-- Backtrace:
Application: Okular (okular), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f51be01a180 (LWP 7009))]

Thread 3 (Thread 0x7f5195145700 (LWP 7101)):
#0  0x00007f51b701056c in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1  0x00007f51958901eb in ?? () from /usr/lib64/dri/i965_dri.so
#2  0x00007f519588ff17 in ?? () from /usr/lib64/dri/i965_dri.so
#3  0x00007f51b700996a in start_thread () from /lib64/libpthread.so.0
#4  0x00007f51b9daa92f in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f51a0c03700 (LWP 7026)):
#0  0x00007f51b9d9ed63 in poll () from /lib64/libc.so.6
#1  0x00007f51b4a100b9 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f51b4a101cc in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#3  0x00007f51ba70965b in QEventDispatcherGlib::processEvents
(this=0x7f519c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f51ba6b985b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
../../include/QtCore/../../src/corelib/global/qflags.h:140
#5  0x00007f51ba5326c6 in QThread::exec() () at
../../include/QtCore/../../src/corelib/global/qflags.h:120
#6  0x00007f51bab52de5 in ?? () from /usr/lib64/libQt5DBus.so.5
#7  0x00007f51ba53b69b in QThreadPrivate::start(void*) () at
thread/qthread_unix.cpp:367
#8  0x00007f51b700996a in start_thread () from /lib64/libpthread.so.0
#9  0x00007f51b9daa92f in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f51be01a180 (LWP 7009)):
[KCrash Handler]
#6  0x00007f51bc2099c3 in QMapData<KEntryKey, KEntry>::findNode (this=0x20,
akey=...) at /usr/include/qt5/QtCore/qmap.h:284
#7  0x00007f51bc20ecab in QMap<KEntryKey, KEntry>::constFind (akey=...,
this=0x55a50872c5f0) at /usr/include/qt5/QtCore/qmap.h:869
#8  QMap<KEntryKey, KEntry>::find (akey=..., this=0x55a50872c5f0) at
/usr/include/qt5/QtCore/qmap.h:876
#9  KEntryMap::findEntry (this=this at entry=0x55a50872c5f0, group=..., key=...,
flags=..., flags at entry=...) at
/var/tmp/portage/kde-frameworks/kconfig-5.54.0-r1/work/kconfig-5.54.0/src/core/kconfigdata.cpp:74
#10 0x00007f51bc2032f7 in KConfigPrivate::lookupData
(this=this at entry=0x55a50872c5d0, group=..., key=key at entry=0x55a507f8bb42
"ActiveTab", flags=..., flags at entry=...) at
/var/tmp/portage/kde-frameworks/kconfig-5.54.0-r1/work/kconfig-5.54.0/src/core/kconfig.cpp:1024
#11 0x00007f51bc2187dc in KConfigGroup::readEntry
(this=this at entry=0x7fff51f7c0f0, key=key at entry=0x55a507f8bb42 "ActiveTab",
aDefault=...) at
/var/tmp/portage/kde-frameworks/kconfig-5.54.0-r1/work/kconfig-5.54.0/src/core/kconfiggroup.cpp:725
#12 0x000055a507f84de3 in KConfigGroup::readEntry<int>
(defaultValue=@0x7fff51f7c03c: 0, key=0x55a507f8bb42 "ActiveTab",
this=0x7fff51f7c0f0) at /usr/include/KF5/KConfigCore/kconfiggroup.h:723
#13 Shell::readProperties (this=0x55a5084aea90, group=...) at
/var/tmp/portage/kde-apps/okular-18.08.3/work/okular-18.08.3/shell/shell.cpp:392
#14 0x00007f51bd191858 in KMainWindow::readPropertiesInternal
(this=this at entry=0x55a5084aea90, config=0x55a5084b7720, number=number at entry=1)
at
/var/tmp/portage/kde-frameworks/kxmlgui-5.54.0-r1/work/kxmlgui-5.54.0/src/kmainwindow.cpp:652
#15 0x00007f51bd1918a2 in KMainWindow::restore (this=0x55a5084aea90, number=1,
show=<optimized out>) at
/var/tmp/portage/kde-frameworks/kxmlgui-5.54.0-r1/work/kxmlgui-5.54.0/src/kmainwindow.cpp:473
#16 0x000055a507f800db in kRestoreMainWindows<Shell> () at
/usr/include/KF5/KXmlGui/kmainwindow.h:719
#17 0x000055a507f7d822 in main (argc=<optimized out>, argv=<optimized out>) at
/var/tmp/portage/kde-apps/okular-18.08.3/work/okular-18.08.3/shell/main.cpp:64

The reporter indicates this bug may be a duplicate of or related to bug 402397.

Possible duplicates by query: bug 402397, bug 395913, bug 395869, bug 395779,
bug 395613.

Reported using DrKonqi

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