crash with a segmentation fault
Issue #17
closed
Originally reported on Google Code with ID 17
This bug is originally reported to ubuntu bug tracking system:
https://launchpad.net/distros/ubuntu/+source/speedcrunch/+bug/72026
If you play with speedcrunch + or * button via mouse the program crash.
these steps to reproduce (but there are many others)
TYPE ALL WITH THE MOUSE:
3*3 EVALUATE
*3 EVALUATE
*3 EVALUATE
etc...
continue until it crash with a segmentation fault.
What is the expected output? What do you see instead?
This happens with beta2 release. Backtrace:
#0 0xb7e43775 in Q3TextParagraph::format () from /usr/lib/libQt3Support.so.4
#1 0xb7e43f65 in Q3TextParagraph::lineHeightOfChar ()
from /usr/lib/libQt3Support.so.4
#2 0xb7e22978 in Q3TextEdit::drawCursor () from /usr/lib/libQt3Support.so.4
#3 0xb7e250bb in Q3TextEdit::setCursorPosition ()
from /usr/lib/libQt3Support.so.4
#4 0x08056ad6 in Crunch::addKeyPadText ()
#5 0x08099544 in Crunch::qt_metacall ()
#6 0xb6fbc748 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#7 0xb6fbd0ca in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#8 0x0809a505 in KeyPad::addText ()
#9 0x0808d7a0 in KeyPad::clickedMul ()
#10 0x0809a65d in KeyPad::qt_metacall ()
#11 0xb6fbc748 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#12 0xb6fbc9cf in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#13 0xb77aa6c1 in QAbstractButton::clicked () from /usr/lib/libQtGui.so.4
#14 0xb75cdc49 in QButtonGroup::id () from /usr/lib/libQtGui.so.4
#15 0xb75cf2f9 in QAbstractButton::keyPressEvent () from /usr/lib/libQtGui.so.4
#16 0xb75cf512 in QAbstractButton::mouseReleaseEvent ()
from /usr/lib/libQtGui.so.4
#17 0xb738886e in QWidget::event () from /usr/lib/libQtGui.so.4
#18 0xb75ce795 in QAbstractButton::event () from /usr/lib/libQtGui.so.4
#19 0xb76478b4 in QPushButton::event () from /usr/lib/libQtGui.so.4
Reported by vi64pa on 2006-11-19 10:29:16
Comments (6)
-
Account Deleted
-
Account Deleted
Reported by `ariya.hidayat` on 2007-04-14 20:02:05 - Status changed: `Accepted` - Labels added: Milestone-0.7
-
Account Deleted
``` Fixed in svn. The 0.7 release will include the fix. ```
Reported by `ariya.hidayat` on 2007-04-16 08:40:33 - Status changed: `Fixed`
-
Account Deleted
Reported by `helder.pereira.correia` on 2007-05-15 12:41:58 - Status changed: `Verified`
-
repo owner
- changed milestone to 0.7
- edited description
-
repo owner
- changed status to closed
- Log in to comment
```
According to Valgrid output this could be qt problem:
7108== Invalid read of size 1
7108== at 0x4022CEF: memcpy (mc_replace_strmem.c:405)
7108== by 0x4FD5911: QVectorData::malloc(int, int, int, QVectorData*) (in
/usr/lib/libQtCore.so.4.2.0)
7108== by 0x41632A2: (within /usr/lib/libQt3Support.so.4.2.0)
7108== by 0x416337C: (within /usr/lib/libQt3Support.so.4.2.0)
7108== by 0x41EF479: Q3TextParagraph::lineStartOfChar(int, int*, int*) const (in
/usr/lib/libQt3Support.so.4.2.0)
7108== by 0x4229FC9: Q3TextCursor::y() const (in /usr/lib/libQt3Support.so.4.2.0)
7108== by 0x41CB991: Q3TextEdit::drawCursor(bool) (in /usr/lib/libQt3Support.so.4.2.0)
7108== by 0x41CE0BA: Q3TextEdit::setCursorPosition(int, int) (in
/usr/lib/libQt3Support.so.4.2.0)
7108== by 0x8056AD5: Crunch::addKeyPadText(QString const&) (in
/home/ville/Ubuntu/speed_source/speedcrunch-0.7-beta2/speedcrunch)
7108== by 0x8099543: Crunch::qt_metacall(QMetaObject::Call, int, void) (in
/home/ville/Ubuntu/speed_source/speedcrunch-0.7-beta2/speedcrunch)
7108== by 0x5050747: QMetaObject::activate(QObject*, int, int, void) (in
/usr/lib/libQtCore.so.4.2.0)
7108== by 0x50510C9: QMetaObject::activate(QObject*, QMetaObject const*, int,
void) (in /usr/lib/libQtCore.so.4.2.0)
7108== Address 0x5B9D653 is 3 bytes inside a block of size 16 free'd
7108== at 0x4020FB0: free (vg_replace_malloc.c:233)
7108== by 0x4F920EC: qFree(void*) (in /usr/lib/libQtCore.so.4.2.0)
7108== by 0x416303C: (within /usr/lib/libQt3Support.so.4.2.0)
7108== by 0x420A3B4: Q3TextString::Q3TextString() (in /usr/lib/libQt3Support.so.4.2.0)
7108== by 0x41ECF95: Q3TextParagraph::Q3TextParagraph() (in
/usr/lib/libQt3Support.so.4.2.0)
7108== by 0x420F2C3: Q3TextDocument::clear(bool) (in /usr/lib/libQt3Support.so.4.2.0)
7108== by 0x420F4BA: Q3TextDocument::setPlainText(QString const&) (in
/usr/lib/libQt3Support.so.4.2.0)
7108== by 0x421E541: Q3TextDocument::setText(QString const&, QString const&) (in
/usr/lib/libQt3Support.so.4.2.0)
7108== by 0x41E49D2: Q3TextEdit::setText(QString const&, QString const&) (in
/usr/lib/libQt3Support.so.4.2.0)
7108== by 0x805744B: Crunch::textChanged() (in
/home/ville/Ubuntu/speed_source/speedcrunch-0.7-beta2/speedcrunch)
7108== by 0x8099519: Crunch::qt_metacall(QMetaObject::Call, int, void) (in
/home/ville/Ubuntu/speed_source/speedcrunch-0.7-beta2/speedcrunch)
7108== by 0x5050747: QMetaObject::activate(QObject*, int, int, void) (in
/usr/lib/libQtCore.so.4.2.0)
```
Reported by `vi64pa` on 2006-11-19 10:38:29