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QFileDialog::getOpenFileNames() displays the following error and displays no file.
$ cat filedialog.cpp
#include <QtGui>
int main( int argc, char** argv )
{
QApplication app( argc, argv );
QFileDialog::getOpenFileNames();
return app.exec();
}
$ ./filedialog
QThread::start: Thread creation error:
Kenji Sugita
Senior Manager, Software Research Associates, Inc.
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Hi, > QFileDialog::getOpenFileNames() displays the following error and displays no file. > [...] > QThread::start: Thread creation error: I can't reproduce that on Linux Fedora Core 6. On which platform does this happen? -- [ signature omitted ]
Hi!
From: Dimitri <dimitri@xxxxxxxxxxxxx>
Subject: Re: Qt/X11 4.3 Beta - QFileDialog::getOpenFileNames() cannot work.
Date: Sun, 25 Mar 2007 21:13:44 +0200
;;; > QFileDialog::getOpenFileNames() displays the following error and displays no file.
;;; > [...]
;;; > QThread::start: Thread creation error:
;;;
;;; I can't reproduce that on Linux Fedora Core 6. On which platform does
;;; this happen?
This happens on Vine Linux 4.1 (http://www.vinelinux.org/).
$ ltrace -C filedialog
__libc_start_main(0x804890c, 1, 0xbff20154, 0x8048b28, 0x8048b70 <unfinished ...>
QApplication::QApplication(int&, char**, int)(0xbff200d4, 0xbff20100, 0xbff20154, 262912, 0xb71a4658) = 0xb7ef8594
QFileDialog::getOpenFileNames(QWidget*, QString const&, QString const&, QString const&, QString*, QFlags<QFileDialog::Option>)(0xbff200dc, 0, 0xbff200ec, 0xbff200e8, 0xbff200e4 <unfinished ...>
--- UNKNOWN_SIGNAL (Unknown signal 32) ---
--- UNKNOWN_SIGNAL (Unknown signal 32) ---
QThread::start: Thread creation error:
<Control-C>
--- SIGINT (Interrupt) ---
+++ killed by SIGINT +++
$
The example mandelbrot does not work too.
$ ./mandelbrot
QThread::start: Thread creation error:
These programs work well for Qt/X11 4.2.3 and before.
Kenji Sugita
Senior Manager, Software Research Associates, Inc.
To unsubscribe - send "unsubscribe" in the subject to qt4-preview-feedback-request@xxxxxxxxxxxxx
Kenji Sugita wrote: > This happens on Vine Linux 4.1 (http://www.vinelinux.org/). > $ ltrace -C filedialog > __libc_start_main(0x804890c, 1, 0xbff20154, 0x8048b28, 0x8048b70 > <unfinished ...> QApplication::QApplication(int&, char**, > int)(0xbff200d4, 0xbff20100, 0xbff20154, 262912, 0xb71a4658) = > 0xb7ef8594 QFileDialog::getOpenFileNames(QWidget*, QString const&, > QString const&, QString const&, QString*, > QFlags<QFileDialog::Option>)(0xbff200dc, 0, 0xbff200ec, 0xbff200e8, > 0xbff200e4 <unfinished ...> --- UNKNOWN_SIGNAL (Unknown signal 32) --- > --- UNKNOWN_SIGNAL (Unknown signal 32) --- QThread::start: Thread > creation error: <Control-C> --- SIGINT (Interrupt) --- +++ killed by > SIGINT +++ $ > The example mandelbrot does not work too. > $ ./mandelbrot > QThread::start: Thread creation error: > These programs work well for Qt/X11 4.2.3 and before. Hi, Sugita-san. Could you please provide a backtrace? You should probably also report this through our public bugtracker: http://www.trolltech.com/support/support/bugreport-form Andreas -- [ signature omitted ]
Hi Andreas,
i have a similar problem. If i try to reach the root directory in
QFileDialog by clicking the parent directory button a crash will follow.
See the dump at the end of this mail.
With 20070323 snapshot designer i reach the root folder by clicking the
parent directory button, but the list shows only two directories. The one i
came from and the home directory.
Even worse, I am unable to reach the root directory since snapshot 20070320.
The list shows no entries if i select the "Computer" icon.
And where is the new folder created? See attached screenshot.
On Monday 26 March 2007 12:27, Andreas Aardal Hanssen wrote:
> Kenji Sugita wrote:
> > This happens on Vine Linux 4.1 (http://www.vinelinux.org/).
> > $ ltrace -C filedialog
> > __libc_start_main(0x804890c, 1, 0xbff20154, 0x8048b28, 0x8048b70
> > <unfinished ...> QApplication::QApplication(int&, char**,
> > int)(0xbff200d4, 0xbff20100, 0xbff20154, 262912, 0xb71a4658) =
> > 0xb7ef8594 QFileDialog::getOpenFileNames(QWidget*, QString const&,
> > QString const&, QString const&, QString*,
> > QFlags<QFileDialog::Option>)(0xbff200dc, 0, 0xbff200ec, 0xbff200e8,
> > 0xbff200e4 <unfinished ...> --- UNKNOWN_SIGNAL (Unknown signal 32)
> > --- --- UNKNOWN_SIGNAL (Unknown signal 32) --- QThread::start: Thread
> > creation error: <Control-C> --- SIGINT (Interrupt) --- +++ killed by
> > SIGINT +++ $
> > The example mandelbrot does not work too.
> > $ ./mandelbrot
> > QThread::start: Thread creation error:
> > These programs work well for Qt/X11 4.2.3 and before.
>
> Hi, Sugita-san. Could you please provide a backtrace? You should probably
> also report this through our public bugtracker:
>
> http://www.trolltech.com/support/support/bugreport-form
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
The version combo box shows no 4.3 preview entry ;-)
>
> Andreas
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 47566335604768 (LWP 6100)]
QString::operator== (this=0xb269b8, other=<value optimized out>) at
tools/qstring.cpp:1707
1707 const ushort *uc = d->data;
(gdb) where
#0 QString::operator== (this=0xb269b8, other=<value optimized out>) at
tools/qstring.cpp:1707
#1 0x00002b42e0894eb9 in non-virtual thunk to
QProgressDialog::~QProgressDialog() ()
from /usr/local/Trolltech/Qt-4.3.0-snapshot-20070327/lib/libQtGui.so.4
#2 0x00002b42e08971aa in non-virtual thunk to
QProgressDialog::~QProgressDialog() ()
from /usr/local/Trolltech/Qt-4.3.0-snapshot-20070327/lib/libQtGui.so.4
#3 0x00002b42e0871857 in QFileDialog::setDirectory ()
from /usr/local/Trolltech/Qt-4.3.0-snapshot-20070327/lib/libQtGui.so.4
#4 0x00002b42e08727b6 in QFileDialog::setDirectory ()
from /usr/local/Trolltech/Qt-4.3.0-snapshot-20070327/lib/libQtGui.so.4
#5 0x00002b42e08785c1 in QFileDialog::qt_metacall ()
from /usr/local/Trolltech/Qt-4.3.0-snapshot-20070327/lib/libQtGui.so.4
#6 0x00002b42e2abc278 in QMetaObject::activate (sender=0xae9f80,
from_signal_index=29, to_signal_index=30, argv=0x0) at
kernel/qobject.cpp:3038
#7 0x00002b42e098c697 in QAbstractButton::clicked ()
from /usr/local/Trolltech/Qt-4.3.0-snapshot-20070327/lib/libQtGui.so.4
#8 0x00002b42e078ab0b in QButtonGroup::id ()
from /usr/local/Trolltech/Qt-4.3.0-snapshot-20070327/lib/libQtGui.so.4
#9 0x00002b42e078c1de in QAbstractButton::keyPressEvent ()
from /usr/local/Trolltech/Qt-4.3.0-snapshot-20070327/lib/libQtGui.so.4
#10 0x00002b42e078c401 in QAbstractButton::mouseReleaseEvent ()
from /usr/local/Trolltech/Qt-4.3.0-snapshot-20070327/lib/libQtGui.so.4
#11 0x00002b42e083636a in QToolButton::mouseReleaseEvent ()
from /usr/local/Trolltech/Qt-4.3.0-snapshot-20070327/lib/libQtGui.so.4
#12 0x00002b42e053586e in QWidget::event ()
from /usr/local/Trolltech/Qt-4.3.0-snapshot-20070327/lib/libQtGui.so.4
#13 0x00002b42e078b7c4 in QAbstractButton::event ()
from /usr/local/Trolltech/Qt-4.3.0-snapshot-20070327/lib/libQtGui.so.4
#14 0x00002b42e0836119 in QToolButton::event ()
from /usr/local/Trolltech/Qt-4.3.0-snapshot-20070327/lib/libQtGui.so.4
#15 0x00002b42e04f735c in QApplicationPrivate::notify_helper ()
from /usr/local/Trolltech/Qt-4.3.0-snapshot-20070327/lib/libQtGui.so.4
#16 0x00002b42e04f9c90 in QApplication::notify ()
from /usr/local/Trolltech/Qt-4.3.0-snapshot-20070327/lib/libQtGui.so.4
#17 0x00002b42e2aab300 in QCoreApplication::notifyInternal
(this=0x7fffcd9bf2c0, receiver=0xae9f80, event=0x7fffcd9bd2c0)
at kernel/qcoreapplication.cpp:504
#18 0x00002b42e0547c9f in QApplication::x11ProcessEvent ()
from /usr/local/Trolltech/Qt-4.3.0-snapshot-20070327/lib/libQtGui.so.4
#19 0x00002b42e0546d40 in QApplication::x11ProcessEvent ()
from /usr/local/Trolltech/Qt-4.3.0-snapshot-20070327/lib/libQtGui.so.4
#20 0x00002b42e0568935 in QX11Info::copyX11Data ()
from /usr/local/Trolltech/Qt-4.3.0-snapshot-20070327/lib/libQtGui.so.4
#21 0x00002b42e31a4f94 in g_main_context_dispatch ()
from /opt/gnome/lib64/libglib-2.0.so.0
#22 0x00002b42e31a7dc5 in g_main_context_prepare ()
from /opt/gnome/lib64/libglib-2.0.so.0
#23 0x00002b42e31a82ee in g_main_context_iteration ()
from /opt/gnome/lib64/libglib-2.0.so.0
#24 0x00002b42e2acb340 in QEventDispatcherGlib::processEvents (this=0x6dcd60,
flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:321
#25 0x00002b42e056874f in QX11Info::copyX11Data ()
from /usr/local/Trolltech/Qt-4.3.0-snapshot-20070327/lib/libQtGui.so.4
#26 0x00002b42e2aaa958 in QEventLoop::processEvents (this=<value optimized
out>, flags=<value optimized out>) at kernel/qeventloop.cpp:124
#27 0x00002b42e2aaaa69 in QEventLoop::exec (this=0x7fffcd9bdae0,
flags=@0x7fffcd9bdb00) at kernel/qeventloop.cpp:170
#28 0x00002b42e086a96b in QDialog::exec ()
from /usr/local/Trolltech/Qt-4.3.0-snapshot-20070327/lib/libQtGui.so.4
#29 0x00002b42e087be87 in QFileDialog::getOpenFileName ()
from /usr/local/Trolltech/Qt-4.3.0-snapshot-20070327/lib/libQtGui.so.4
Attachment:
Attachment:
newFolder.png Attachment:
Open.png
Description: PNG image
Description: PNG image
Message 6 in thread
Dirk Schulz wrote:
> Hi Andreas,
> i have a similar problem. If i try to reach the root directory in
> QFileDialog by clicking the parent directory button a crash will follow.
> See the dump at the end of this mail.
> With 20070323 snapshot designer i reach the root folder by clicking the
> parent directory button, but the list shows only two directories. The one
> i came from and the home directory.
>
> Even worse, I am unable to reach the root directory since snapshot
> 20070320. The list shows no entries if i select the "Computer" icon.
Thanks for the report a task has been created to fix this.
> And where is the new folder created? See attached screenshot.
The new folder button appears when using the Save mode.
-Benjamin Meyer
To unsubscribe - send "unsubscribe" in the subject to qt4-preview-feedback-request@xxxxxxxxxxxxx
Message 7 in thread
>> And where is the new folder created? See attached screenshot.
>
> The new folder button appears when using the Save mode.
Woops jumped the gun on that one (had that question asked a handfull of
times) The New Folder Action in the right click menu should have been
disabled like the New Folder button was, a task has been made for this.
-Benjamin Meyer
To unsubscribe - send "unsubscribe" in the subject to qt4-preview-feedback-request@xxxxxxxxxxxxx
