[plasmashell] [Bug 388477] Plasma crashes when activating the Application Launcher

[Tristan Miller]

https://bugs.kde.org/show_bug.cgi?id=388477

Tristan Miller  changed:

   What|Removed |Added

 Status|NEEDSINFO   |RESOLVED
 Resolution|WAITINGFORINFO  |WORKSFORME

--- Comment #11 from Tristan Miller  ---
I've no longer been able to reproduce this problem for a while now -- I'm
currently using Plasma 5.20.3.

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[plasmashell] [Bug 388477] Plasma crashes when activating the Application Launcher

[Justin Zobel]

https://bugs.kde.org/show_bug.cgi?id=388477

Justin Zobel  changed:

   What|Removed |Added

 Status|REPORTED|NEEDSINFO
 CC||justin.zo...@gmail.com
 Resolution|--- |WAITINGFORINFO

--- Comment #10 from Justin Zobel  ---
Thank you for the report, Tristan.

As it has been a while since this was reported, can you please test and confirm
if this issue is still occurring or if this bug report can be marked as
resolved.

I have set the bug status to "needsinfo" pending your response, please change
back to "reported" or "resolved/worksforme" when you respond, thank you.

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[plasmashell] [Bug 388477] Plasma crashes when activating the Application Launcher

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=388477

tux+kde...@warnetd.org changed:

   What|Removed |Added

 CC|tux+kde...@warnetd.org  |

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[plasmashell] [Bug 388477] Plasma crashes when activating the Application Launcher

[Eike Hein]

https://bugs.kde.org/show_bug.cgi?id=388477

--- Comment #9 from Eike Hein  ---
The db stores recently opened documents and recently launched apps (i.e.
metadata), file<>activity associations (manually done by user),
window<>activity associations (manually done by user) and menu favorites (also
done by user).

I think Ivan is working on a scheme where corrupted db's are caught and
auto-rolled-back to a periodical backup ...

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[plasmashell] [Bug 388477] Plasma crashes when activating the Application Launcher

[Tristan Miller]

https://bugs.kde.org/show_bug.cgi?id=388477

--- Comment #8 from Tristan Miller  ---
If it's a corrupted KActivities database, then something must be consistently
corrupting it, because I am experiencing this problem on two different machines
-- one running Plasma 5.12.5 on openSUSE 15.0 and one running Plasma 5.13.0 on
openSUSE Tumbleweed.  The Tumbleweed machine has exhibited the problem since at
least Plasma 5.11.4.

Is there some way of clearing the KActivities database so that we can test if
this is the problem?  If so, what sort of information is stored in this
database?  (Anything I'm likely to miss?)

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[plasmashell] [Bug 388477] Plasma crashes when activating the Application Launcher

[Eike Hein]

https://bugs.kde.org/show_bug.cgi?id=388477

Eike Hein  changed:

   What|Removed |Added

 Resolution|FIXED   |---
 Status|RESOLVED|UNCONFIRMED

--- Comment #7 from Eike Hein  ---
Sorry, accidentally while juggling tabs.

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[plasmashell] [Bug 388477] Plasma crashes when activating the Application Launcher

[Tristan Miller]

https://bugs.kde.org/show_bug.cgi?id=388477

--- Comment #6 from Tristan Miller  ---
(In reply to Eike Hein from comment #5)
> My best guess currently is a corrupted KActivities database unfortunately ...

OK, so why did you mark this as RESOLVED/FIXED?

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[plasmashell] [Bug 388477] Plasma crashes when activating the Application Launcher

[Eike Hein]

https://bugs.kde.org/show_bug.cgi?id=388477

Eike Hein  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |FIXED

--- Comment #5 from Eike Hein  ---
My best guess currently is a corrupted KActivities database unfortunately ...

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[plasmashell] [Bug 388477] Plasma crashes when activating the Application Launcher

[Tristan Miller]

https://bugs.kde.org/show_bug.cgi?id=388477

--- Comment #4 from Tristan Miller  ---
Still reproducible for me with Plasma 5.12.5.

I can consistently reproduce it simply by moving my mouse pointer over the
"History" icon.

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[plasmashell] [Bug 388477] Plasma crashes when activating the Application Launcher

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=388477

tux+kde...@warnetd.org changed:

   What|Removed |Added

 CC||tux+kde...@warnetd.org

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[plasmashell] [Bug 388477] Plasma crashes when activating the Application Launcher

[Tristan Miller]

https://bugs.kde.org/show_bug.cgi?id=388477

Tristan Miller  changed:

   What|Removed |Added

 Status|NEEDSINFO   |UNCONFIRMED
 Resolution|BACKTRACE   |---

--- Comment #3 from Tristan Miller  ---
Here's another backtrace, this time with more symbols.

Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f9fc8f49f40 (LWP 1537))]

Thread 8 (Thread 0x7f9ef9925700 (LWP 3476)):
#0  0x7f9fc2511f2b in __GI___poll (fds=0x7f9ef40029e0, nfds=1,
timeout=2549283) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x7f9fbd288149 in g_main_context_poll (priority=,
n_fds=1, fds=0x7f9ef40029e0, timeout=, context=0x7f9ef4000be0)
at gmain.c:4187
#2  0x7f9fbd288149 in g_main_context_iterate
(context=context@entry=0x7f9ef4000be0, block=block@entry=1,
dispatch=dispatch@entry=1, self=) at gmain.c:3881
#3  0x7f9fbd28825c in g_main_context_iteration (context=0x7f9ef4000be0,
may_block=1) at gmain.c:3947
#4  0x7f9fc2e4857b in
QEventDispatcherGlib::processEvents(QFlags) ()
at /usr/lib64/libQt5Core.so.5
#5  0x7f9fc2def4aa in
QEventLoop::exec(QFlags) () at
/usr/lib64/libQt5Core.so.5
#6  0x7f9fc2c168da in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x7f9efc1eff67 in KCupsConnection::run() () at
/usr/lib64/libkcupslib.so
#8  0x7f9fc2c1b8d0 in QThreadPrivate::start(void*) () at
/usr/lib64/libQt5Core.so.5
#9  0x7f9fc1dcb558 in start_thread (arg=0x7f9ef9925700) at
pthread_create.c:465
#10 0x7f9fc251c6df in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f9f0f320700 (LWP 2270)):
#0  0x7f9fc2511f2b in __GI___poll (fds=0x7f9f08005380, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x7f9fbd288149 in g_main_context_poll (priority=,
n_fds=1, fds=0x7f9f08005380, timeout=, context=0x7f9f08000be0)
at gmain.c:4187
#2  0x7f9fbd288149 in g_main_context_iterate
(context=context@entry=0x7f9f08000be0, block=block@entry=1,
dispatch=dispatch@entry=1, self=) at gmain.c:3881
#3  0x7f9fbd28825c in g_main_context_iteration (context=0x7f9f08000be0,
may_block=1) at gmain.c:3947
#4  0x7f9fc2e4857b in
QEventDispatcherGlib::processEvents(QFlags) ()
at /usr/lib64/libQt5Core.so.5
#5  0x7f9fc2def4aa in
QEventLoop::exec(QFlags) () at
/usr/lib64/libQt5Core.so.5
#6  0x7f9fc2c168da in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x7f9fc6931b22 in QQuickPixmapReader::run() () at
/usr/lib64/libQt5Quick.so.5
#8  0x7f9fc2c1b8d0 in QThreadPrivate::start(void*) () at
/usr/lib64/libQt5Core.so.5
#9  0x7f9fc1dcb558 in start_thread (arg=0x7f9f0f320700) at
pthread_create.c:465
#10 0x7f9fc251c6df in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f9f9ab94700 (LWP 2146)):
#0  0x7f9fc1dd182d in futex_wait_cancelable (private=,
expected=0, futex_word=0x7f9fc891ffb8 ) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x7f9fc1dd182d in __pthread_cond_wait_common (abstime=0x0,
mutex=0x7f9fc891ff68 , cond=0x7f9fc891ff90
) at pthread_cond_wait.c:502
#2  0x7f9fc1dd182d in __pthread_cond_wait (cond=0x7f9fc891ff90
, mutex=0x7f9fc891ff68
) at pthread_cond_wait.c:655
#3  0x7f9fc862b614 in QTWTF::TCMalloc_PageHeap::scavengerThread()
(this=0x7f9fc8911ec0 ) at
../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0x7f9fc862b659 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*)
(context=) at
../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0x7f9fc1dcb558 in start_thread (arg=0x7f9f9ab94700) at
pthread_create.c:465
#6  0x7f9fc251c6df in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f9fa8d34700 (LWP 2122)):
#0  0x7f9fc250da88 in __GI___libc_read (fd=11,
buf=buf@entry=0x7f9fa8d33aa0, nbytes=nbytes@entry=16) at
../sysdeps/unix/sysv/linux/read.c:26
#1  0x7f9fbd2cc3c0 in read (__nbytes=16, __buf=0x7f9fa8d33aa0,
__fd=) at /usr/include/bits/unistd.h:44
#2  0x7f9fbd2cc3c0 in g_wakeup_acknowledge (wakeup=0x7f9f9c003590) at
gwakeup.c:210
#3  0x7f9fbd287c2b in g_main_context_check
(context=context@entry=0x7f9fabe0, max_priority=2147483647,
fds=fds@entry=0x7f9fa0002de0, n_fds=n_fds@entry=1) at gmain.c:3664
#4  0x7f9fbd2880f0 in g_main_context_iterate
(context=context@entry=0x7f9fabe0, block=block@entry=1,
dispatch=dispatch@entry=1, self=) at gmain.c:3883
#5  0x7f9fbd28825c in g_main_context_iteration (context=0x7f9fabe0,
may_block=1) at gmain.c:3947
#6  0x7f9fc2e4857b in
QEventDispatcherGlib::processEvents(QFlags) ()
at 

[plasmashell] [Bug 388477] Plasma crashes when activating the Application Launcher

[Eike Hein]

https://bugs.kde.org/show_bug.cgi?id=388477

Eike Hein  changed:

   What|Removed |Added

 Resolution|--- |BACKTRACE
 Status|UNCONFIRMED |NEEDSINFO

--- Comment #1 from Eike Hein  ---
Could you install debug symbols for plasma-desktop and Qt and reopen this with
an additional backtrace when it crashes again? This looks interesting but the
backtrace lacks too many symbols to make sense of what's going on so far.

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[plasmashell] [Bug 388477] Plasma crashes when activating the Application Launcher

[David Edmundson]

https://bugs.kde.org/show_bug.cgi?id=388477

David Edmundson  changed:

   What|Removed |Added

   Assignee|k...@davidedmundson.co.uk|h...@kde.org
  Component|general |Application Menu (Kicker)

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