QWSLock errors

[Radek Polak]

On Thursday, November 08, 2012 09:12:40 AM Neil Jerram wrote:

> With current QtMoko git I'm seeing a lot of QWSLock errors in my log,
> e.g.:
> 
> root at neo:~# tail -f /var/log/messages
> Nov  8 08:01:05 neo Qtopia: QWSLock::down(): Invalid argument
> Nov  8 08:01:05 neo Qtopia: QWSLock::down(): Invalid argument
> Nov  8 08:01:05 neo Qtopia: QWSLock::up(): Invalid argument
> Nov  8 08:01:05 neo Qtopia: QWSLock::down(): Invalid argument
> Nov  8 08:01:05 neo last message repeated 3 times
> Nov  8 08:01:05 neo Qtopia: QWSLock::up(): Invalid argument
> Nov  8 08:01:35 neo last message repeated 4 times
> Nov  8 08:01:35 neo Qtopia: QWSLock::down(): Invalid argument
> Nov  8 08:01:36 neo Qtopia: QWSLock::up(): Invalid argument
> 
> Are you getting those too?  If so, perhaps this is something to
> understand before making a new release.
> 
> I'm investigating by adding more logging to QWSLock::up() - I hope to be
> able to say more this evening.

To me it looked that the semaphore was closed by the other process or thread. 
The logging and some other stuff was added there in Qt 4.8.

You can check the git log on qwslock.cpp.

> (For some reason a simple 'make', or even '../qtmoko/configure -device
> gta04 && make', doesn't rebuild qwslock.c and the QtGui library.  So
> I've kicked off a full rebuild.)

I alsa had to rebuild it all for changes in Qt. I tried make and make install 
in build/qtopiacore/target but IIRC it didnt help.

Regards

Radek