| Summary: | Applications that use Nepomuk crashes on exit if Nepomuk was disabled after their launch | ||
|---|---|---|---|
| Product: | [Unmaintained] nepomuk | Reporter: | Eugene Shalygin <eugene.shalygin+bugzilla.kde> |
| Component: | general | Assignee: | Nepomuk Bugs Coordination <nepomuk-bugs> |
| Status: | RESOLVED FIXED | ||
| Severity: | crash | CC: | bladud, frank78ac |
| Priority: | NOR | ||
| Version: | 4.8.90 (beta2) | ||
| Target Milestone: | --- | ||
| Platform: | Compiled Sources | ||
| OS: | Linux | ||
| Latest Commit: | 2122fc9eccefd381db7c830045c4fa65d2bffa63 | Version Fixed In: | 2.8.1 |
| Sentry Crash Report: | |||
|
Description
Eugene Shalygin
2012-12-05 19:01:37 UTC
Thanks for the bug report. Is there any evidence that this is a bug in Dolphin and not in Nepomuk/Soprano? I see only Nepomuk and Soprano functions in the backtrace. Well, I remember that I have seen Kontact crashed with the same backtrace. At that time I was playing with Nepomuk/Akonadi and addresses autocompletion in Kmail. But right now I can not reproduce it with Kontact anymore. Sorry. Thanks for the quick feedback. If different apps show the same behaviour, I think it's indeed a Nepomuk/Soprano bug. I managed to reproduce it with Kontact. 1. Enable Nepomuk. 2. Start Kontact 3. Open "New Message" window in KMail. 4. Try address autocompletion (that does not work) 5. Disable Nepomuk 6. Try address autocompletion again (works now) 7. Close Kontact. It crashes Application: Kontact (kontact), signal: Segmentation fault Using host libthread_db library "/lib64/libthread_db.so.1". [Current thread is 1 (Thread 0x7fc809c45780 (LWP 7201))] Thread 2 (Thread 0x7fc804b88700 (LWP 7202)): #0 0x00007fc817b73d1c in pthread_cond_wait () from /lib64/libpthread.so.0 #1 0x00007fc81c4faf6d in WTF::TCMalloc_PageHeap::scavengerThread() () from /usr/lib64/qt4/libQtWebKit.so.4 #2 0x00007fc81c4fb079 in WTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /usr/lib64/qt4/libQtWebKit.so.4 #3 0x00007fc817b6ff3b in start_thread () from /lib64/libpthread.so.0 #4 0x00007fc81d22408d in clone () from /lib64/libc.so.6 Thread 1 (Thread 0x7fc809c45780 (LWP 7201)): [KCrash Handler] #5 0x00007fc810c684f0 in Soprano::Client::ClientConnection::isConnected() () from /usr/lib64/libsopranoclient.so.1 #6 0x00007fc810c69322 in Soprano::Client::ClientModel::~ClientModel() () from /usr/lib64/libsopranoclient.so.1 #7 0x00007fc810c69499 in Soprano::Client::ClientModel::~ClientModel() () from /usr/lib64/libsopranoclient.so.1 #8 0x00007fc8132edb8e in ._163::destroy() () from /usr/lib64/libnepomukcore.so.4 #9 0x00007fc81d174eb1 in __run_exit_handlers () from /lib64/libc.so.6 #10 0x00007fc81d174f35 in exit () from /lib64/libc.so.6 #11 0x00007fc81d15e9bc in __libc_start_main () from /lib64/libc.so.6 #12 0x0000000000403e41 in _start () Git commit 2122fc9eccefd381db7c830045c4fa65d2bffa63 by Simeon Bird.
Committed on 09/12/2012 at 05:31.
Pushed by sbird into branch '2.8'.
Avoid crash on destruction of ClientModel if nepomuk was disabled during
the lifetime of the ClientModel.
Crash is also fixed with 690e59e13a applied.
M +1 -1 client/clientmodel.cpp
diff --git a/client/clientmodel.cpp b/client/clientmodel.cpp
index bdcbed3..4ac406b 100644
--- a/client/clientmodel.cpp
+++ b/client/clientmodel.cpp
@@ -50,7 +50,7 @@ Soprano::Client::ClientModel::~ClientModel()
// closed by the server anyway.
//
QMutexLocker locker( &m_openIteratorsMutex );
- if ( m_client->isConnected() ) {
+ if ( m_client && m_client->isConnected() ) {
for ( int i = 0; i < m_openIterators.count(); ++i ) {
m_client->iteratorClose( m_openIterators[i] );
}
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