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sam_
Developer
Joined: 14 Aug 2020
Posts: 1879
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 Posted: Sun Sep 22, 2024 2:40 am Post subject: |
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Thanks, this is promising.
tst_qcolordialog might be a good test although it's not the simplest. tst_qsettings might be a good one, or tst_qdatastream.
Could you run them manually under gdb and get a backtrace?
e.g.
cd /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/tests/auto/corelib/io/qsettings
gdb --args ./tst_qsettings
r
bt
We want to pick the simplest test which also invokes that optimised memcpy path. |
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localtoast
n00b
Joined: 13 Jul 2024
Posts: 24
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| Posted: Sun Sep 22, 2024 6:42 am Post subject: |
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The two you suggested work out as follows:
| Code: | # gdb --args ./tst_qcolordialog
GNU gdb (Gentoo 14.2 vanilla) 14.2
Copyright (C) 2023 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-pc-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://bugs.gentoo.org/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from ./tst_qcolordialog...
(No debugging symbols found in ./tst_qcolordialog)
(gdb) run
Starting program: /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/tests/auto/widgets/dialogs/qcolordialog/tst_qcolordialog
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib64/libthread_db.so.1".
Detected locale "en_US.iso88591" with character encoding "ISO-8859-1", which is not UTF-8.
Qt depends on a UTF-8 locale, and has switched to "en_US.UTF-8" instead.
If this causes problems, reconfigure your locale. See the locale(1) manual
for more information.
[New Thread 0x7ffff31ff6c0 (LWP 11910)]
[Detaching after fork from child process 11911]
[New Thread 0x7ffff29fe6c0 (LWP 11922)]
********* Start testing of tst_QColorDialog *********
Config: Using QtTest library 6.7.2, Qt 6.7.2 (x86_64-little_endian-lp64 shared (dynamic) release build; by GCC 13.3.1 20240614), gentoo 2.15
PASS : tst_QColorDialog::initTestCase()
SKIP : tst_QColorDialog::defaultOkButton() This test crashes sometimes. Although rarely, but it happens. See QTBUG-50842.
Loc: [/var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2/tests/auto/widgets/dialogs/qcolordialog/tst_qcolordialog.cpp(109)]
SKIP : tst_QColorDialog::native_activeModalWidget() This test crashes sometimes. Although rarely, but it happens. See QTBUG-50842.
Loc: [/var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2/tests/auto/widgets/dialogs/qcolordialog/tst_qcolordialog.cpp(69)]
PASS : tst_QColorDialog::task247349_alpha()
PASS : tst_QColorDialog::QTBUG_43548_initialColor()
Thread 1 "tst_qcolordialo" received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
(gdb) bt
#0 0x0000000000000000 in ?? ()
#1 0x00007ffff72509ba in fillRect_normalized(QRect const&, QSpanData*, QRasterPaintEnginePrivate*) [clone .isra.0]
() from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Gui.so.6
#2 0x00007ffff7276e7c in QPainter::fillRect(QRect const&, QBrush const&) ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Gui.so.6
#3 0x00007ffff7c68fc2 in fillRegion(QPainter*, QRegion const&, QBrush const&) ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Widgets.so.6
#4 0x00007ffff7cc2ab7 in QWidgetPrivate::paintBackground(QPainter*, QRegion const&, QFlags<QWidgetPrivate::DrawWidgetFlag>) const ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Widgets.so.6
#5 0x00007ffff7cdaa3e in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Widgets.so.6
#6 0x00007ffff7cdca71 in QWidgetRepaintManager::paintAndFlush() ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Widgets.so.6
#7 0x00007ffff7cdd37a in QWidgetRepaintManager::sync(QWidget*, QRegion const&) ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Widgets.so.6
#8 0x00007ffff7d067f8 in QWidgetWindow::event(QEvent*) ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Widgets.so.6
#9 0x00007ffff7cf5b15 in QApplicationPrivate::notify_helper(QObject*, QEvent*) ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Widgets.so.6
#10 0x00007ffff6cddcf0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Core.so.6
#11 0x00007ffff716f8b3 in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*)
() from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Gui.so.6
#12 0x00007ffff71c4ff3 in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Gui.so.6
#13 0x00007ffff567547e in ?? () from /usr/lib64/qt6/plugins/platforms/../../../libQt6XcbQpa.so.6
#14 0x00007ffff6211382 in ?? () from /usr/lib64/libglib-2.0.so.0
#15 0x00007ffff6214407 in ?? () from /usr/lib64/libglib-2.0.so.0
#16 0x00007ffff62149c8 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#17 0x00007ffff6ac1120 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Core.so.6
#18 0x00007ffff7c751f4 in QTest::qWaitForWindowExposed(QWidget*, int) ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Widgets.so.6
#19 0x000055555555cb8f in tst_QColorDialog::hexColor() ()
#20 0x00007ffff6d066e9 in QMetaMethodInvoker::invokeImpl(QMetaMethod, void*, Qt::ConnectionType, long long, void const* const*, char const* const*, QtPrivate::QMetaTypeInterface const* const*) ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Core.so.6
#21 0x00007ffff6d0711e in QMetaMethod::invokeImpl(QMetaMethod, void*, Qt::ConnectionType, long long, void const* const*, char const* const*, QtPrivate::QMetaTypeInterface const* const*) ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Core.so.6
#22 0x00007ffff7f9621f in QTest::TestMethods::invokeTestOnData(int) const ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#23 0x00007ffff7f96f35 in QTest::TestMethods::invokeTest(int, QLatin1String, std::optional<QTest::WatchDog>&) const
() from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#24 0x00007ffff7f9768f in QTest::TestMethods::invokeTests(QObject*) const ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#25 0x00007ffff7f9de98 in QTest::qRun() ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#26 0x00007ffff7f9e48f in QTest::qExec(QObject*, int, char**) ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#27 0x000055555555b79b in main ()
(gdb)
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qdatastream gave me too much output to copy from the shell, so this is what gdb logging output looked like:
| Code: | Starting program: /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/tests/auto/corelib/serialization/qdatastream/tst_qdatastream
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib64/libthread_db.so.1".
[New Thread 0x7ffff39116c0 (LWP 12348)]
[Detaching after fork from child process 12349]
[New Thread 0x7ffff31106c0 (LWP 12350)]
Thread 1 "tst_qdatastream" received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
#0 0x0000000000000000 in ?? ()
#1 0x00005555555a1f2c in tst_QDataStream::transaction_data() ()
#2 0x00007ffff75066e9 in QMetaMethodInvoker::invokeImpl(QMetaMethod, void*, Qt::ConnectionType, long long, void const* const*, char const* const*, QtPrivate::QMetaTypeInterface const* const*) () from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Core.so.6
#3 0x00007ffff750711e in QMetaMethod::invokeImpl(QMetaMethod, void*, Qt::ConnectionType, long long, void const* const*, char const* const*, QtPrivate::QMetaTypeInterface const* const*) () from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Core.so.6
#4 0x00007ffff7f72e64 in QTest::invokeTestMethodIfValid(QMetaMethod, QObject*) () from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#5 0x00007ffff7f96d22 in QTest::TestMethods::invokeTest(int, QLatin1String, std::optional<QTest::WatchDog>&) const () from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#6 0x00007ffff7f9768f in QTest::TestMethods::invokeTests(QObject*) const () from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#7 0x00007ffff7f9de98 in QTest::qRun() () from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#8 0x00007ffff7f9e48f in QTest::qExec(QObject*, int, char**) () from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#9 0x000055555556b4b2 in main ()
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sam_
Developer
Joined: 14 Aug 2020
Posts: 1879
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| Posted: Sun Sep 22, 2024 6:54 am Post subject: |
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That first one looks like a perfect fit for the crash we were seeing.
If Ionen has no further input, could you report that upstream to Qt please? |
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localtoast
n00b
Joined: 13 Jul 2024
Posts: 24
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| Posted: Sun Sep 22, 2024 7:04 am Post subject: |
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| sam_ wrote: | That first one looks like a perfect fit for the crash we were seeing.
If Ionen has no further input, could you report that upstream to Qt please? |
Sure. Any others you want to see while the tests are still on my hard disk? |
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sam_
Developer
Joined: 14 Aug 2020
Posts: 1879
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| Posted: Sun Sep 22, 2024 7:13 am Post subject: |
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| How about tst_qpixmap, tst_qimage, tst_qicon? I couldn't see any others which are simple enough to be useful (at least not ones which are meaningfully different). |
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localtoast
n00b
Joined: 13 Jul 2024
Posts: 24
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| Posted: Sun Sep 22, 2024 7:24 am Post subject: |
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Here you go. Nothing special to note about any of the three runs.
| Code: | # gdb ./tst_qpixmap
GNU gdb (Gentoo 14.2 vanilla) 14.2
Copyright (C) 2023 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-pc-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://bugs.gentoo.org/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from ./tst_qpixmap...
(No debugging symbols found in ./tst_qpixmap)
(gdb) set logging on
Warning: 'set logging on', an alias for the command 'set logging enabled', is deprecated.
Use 'set logging enabled on'.
Copying output to gdb.txt.
Copying debug output to gdb.txt.
(gdb) run
Starting program: /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/tests/auto/gui/image/qpixmap/tst_qpixmap
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib64/libthread_db.so.1".
Detected locale "en_US.iso88591" with character encoding "ISO-8859-1", which is not UTF-8.
Qt depends on a UTF-8 locale, and has switched to "en_US.UTF-8" instead.
If this causes problems, reconfigure your locale. See the locale(1) manual
for more information.
[New Thread 0x7ffff31ff6c0 (LWP 17961)]
[Detaching after fork from child process 17962]
[New Thread 0x7ffff29fe6c0 (LWP 17963)]
********* Start testing of tst_QPixmap *********
Config: Using QtTest library 6.7.2, Qt 6.7.2 (x86_64-little_endian-lp64 shared (dynamic) release build; by GCC 13.3.1 20240614), gentoo 2.15
PASS : tst_QPixmap::initTestCase()
Thread 1 "tst_qpixmap" received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
(gdb) bt
#0 0x0000000000000000 in ?? ()
#1 0x000055555555e1e9 in tst_QPixmap::swap() ()
#2 0x00007ffff6d066e9 in QMetaMethodInvoker::invokeImpl(QMetaMethod, void*, Qt::ConnectionType, long long, void const* const*, char const* const*, QtPrivate::QMetaTypeInterface const* const*) () from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Core.so.6
#3 0x00007ffff6d0711e in QMetaMethod::invokeImpl(QMetaMethod, void*, Qt::ConnectionType, long long, void const* const*, char const* const*, QtPrivate::QMetaTypeInterface const* const*) () from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Core.so.6
#4 0x00007ffff7f9621f in QTest::TestMethods::invokeTestOnData(int) const () from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#5 0x00007ffff7f96f35 in QTest::TestMethods::invokeTest(int, QLatin1String, std::optional<QTest::WatchDog>&) const () from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#6 0x00007ffff7f9768f in QTest::TestMethods::invokeTests(QObject*) const () from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#7 0x00007ffff7f9de98 in QTest::qRun() () from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#8 0x00007ffff7f9e48f in QTest::qExec(QObject*, int, char**) () from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#9 0x000055555555d971 in main ()
(gdb)
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| Code: | # gdb ./tst_qimage
GNU gdb (Gentoo 14.2 vanilla) 14.2
Copyright (C) 2023 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-pc-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://bugs.gentoo.org/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from ./tst_qimage...
(No debugging symbols found in ./tst_qimage)
(gdb) run
Starting program: /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/tests/auto/gui/image/qimage/tst_qimage
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib64/libthread_db.so.1".
Detected locale "en_US.iso88591" with character encoding "ISO-8859-1", which is not UTF-8.
Qt depends on a UTF-8 locale, and has switched to "en_US.UTF-8" instead.
If this causes problems, reconfigure your locale. See the locale(1) manual
for more information.
********* Start testing of tst_QImage *********
Config: Using QtTest library 6.7.2, Qt 6.7.2 (x86_64-little_endian-lp64 shared (dynamic) release build; by GCC 13.3.1 20240614), gentoo 2.15
PASS : tst_QImage::initTestCase()
Program received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
(gdb) bt
#0 0x0000000000000000 in ?? ()
#1 0x00007ffff7917ed3 in QImage::fill(Qt::GlobalColor) ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Gui.so.6
#2 0x000055555555ee99 in tst_QImage::swap() ()
#3 0x00007ffff75066e9 in QMetaMethodInvoker::invokeImpl(QMetaMethod, void*, Qt::ConnectionType, long long, void const* const*, char const* const*, QtPrivate::QMetaTypeInterface const* const*) ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Core.so.6
#4 0x00007ffff750711e in QMetaMethod::invokeImpl(QMetaMethod, void*, Qt::ConnectionType, long long, void const* const*, char const* const*, QtPrivate::QMetaTypeInterface const* const*) ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Core.so.6
#5 0x00007ffff7f9621f in QTest::TestMethods::invokeTestOnData(int) const ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#6 0x00007ffff7f96f35 in QTest::TestMethods::invokeTest(int, QLatin1String, std::optional<QTest::WatchDog>&) const
() from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#7 0x00007ffff7f9768f in QTest::TestMethods::invokeTests(QObject*) const ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#8 0x00007ffff7f9de98 in QTest::qRun() ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#9 0x00007ffff7f9e48f in QTest::qExec(QObject*, int, char**) ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#10 0x000055555555e99b in main ()
(gdb)
|
| Code: | # gdb ./tst_qicon
GNU gdb (Gentoo 14.2 vanilla) 14.2
Copyright (C) 2023 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-pc-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://bugs.gentoo.org/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from ./tst_qicon...
(No debugging symbols found in ./tst_qicon)
(gdb) run
Starting program: /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/tests/auto/gui/image/qicon/tst_qicon
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib64/libthread_db.so.1".
Detected locale "en_US.iso88591" with character encoding "ISO-8859-1", which is not UTF-8.
Qt depends on a UTF-8 locale, and has switched to "en_US.UTF-8" instead.
If this causes problems, reconfigure your locale. See the locale(1) manual
for more information.
[New Thread 0x7ffff31ff6c0 (LWP 18080)]
[Detaching after fork from child process 18081]
[New Thread 0x7ffff29fe6c0 (LWP 18082)]
********* Start testing of tst_QIcon *********
Config: Using QtTest library 6.7.2, Qt 6.7.2 (x86_64-little_endian-lp64 shared (dynamic) release build; by GCC 13.3.1 20240614), gentoo 2.15
PASS : tst_QIcon::initTestCase()
PASS : tst_QIcon::actualSize(resource0)
PASS : tst_QIcon::actualSize(resource1)
PASS : tst_QIcon::actualSize(resource2)
PASS : tst_QIcon::actualSize(resource3)
PASS : tst_QIcon::actualSize(resource4)
PASS : tst_QIcon::actualSize(resource5)
PASS : tst_QIcon::actualSize(resource6)
PASS : tst_QIcon::actualSize(resource7)
PASS : tst_QIcon::actualSize(resource8)
PASS : tst_QIcon::actualSize(resource9)
PASS : tst_QIcon::actualSize(resource10)
PASS : tst_QIcon::actualSize(external0)
PASS : tst_QIcon::actualSize(external1)
PASS : tst_QIcon::actualSize(external2)
PASS : tst_QIcon::actualSize(external3)
PASS : tst_QIcon::actualSize(external4)
PASS : tst_QIcon::actualSize(external5)
PASS : tst_QIcon::actualSize(external6)
PASS : tst_QIcon::actualSize(external7)
PASS : tst_QIcon::actualSize(external8)
PASS : tst_QIcon::actualSize(external9)
PASS : tst_QIcon::actualSize(external10)
PASS : tst_QIcon::actualSize2(trivial1)
PASS : tst_QIcon::actualSize2(trivial2)
PASS : tst_QIcon::actualSize2(best1)
PASS : tst_QIcon::actualSize2(best2)
PASS : tst_QIcon::actualSize2(best3)
PASS : tst_QIcon::actualSize2(best4)
PASS : tst_QIcon::actualSize2(best5)
PASS : tst_QIcon::isNull()
PASS : tst_QIcon::isMask()
Thread 1 "tst_qicon" received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
(gdb) bt
#0 0x0000000000000000 in ?? ()
#1 0x000055555555dbad in tst_QIcon::swap() ()
#2 0x00007ffff6d066e9 in QMetaMethodInvoker::invokeImpl(QMetaMethod, void*, Qt::ConnectionType, long long, void const* const*, char const* const*, QtPrivate::QMetaTypeInterface const* const*) ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Core.so.6
#3 0x00007ffff6d0711e in QMetaMethod::invokeImpl(QMetaMethod, void*, Qt::ConnectionType, long long, void const* const*, char const* const*, QtPrivate::QMetaTypeInterface const* const*) ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Core.so.6
#4 0x00007ffff7f9621f in QTest::TestMethods::invokeTestOnData(int) const ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#5 0x00007ffff7f96f35 in QTest::TestMethods::invokeTest(int, QLatin1String, std::optional<QTest::WatchDog>&) const
() from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#6 0x00007ffff7f9768f in QTest::TestMethods::invokeTests(QObject*) const ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#7 0x00007ffff7f9de98 in QTest::qRun() ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#8 0x00007ffff7f9e48f in QTest::qExec(QObject*, int, char**) ()
from /var/tmp/portage/dev-qt/qtbase-6.7.2-r4/work/qtbase-everywhere-src-6.7.2_build/lib64/libQt6Test.so.6
#9 0x000055555555ae2b in main ()
(gdb)
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sam_
Developer
Joined: 14 Aug 2020
Posts: 1879
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| Posted: Sun Sep 22, 2024 8:35 am Post subject: |
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| Curious as to why it goes wrong a bit earlier in the others but maybe something just gets inlined. If this was built with -ggdb3 (to get as much debugging info as possible), I'd just report upstream at this point. If you can reproduce with -Og -ggdb3, the backtraces may be better again, but reduced optimisation can hide bugs too. |
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localtoast
n00b
Joined: 13 Jul 2024
Posts: 24
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| Posted: Sun Sep 22, 2024 8:36 am Post subject: |
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| sam_ wrote: | | Curious as to why it goes wrong a bit earlier in the others but maybe something just gets inlined. If this was built with -ggdb3 (to get as much debugging info as possible), I'd just report upstream at this point. If you can reproduce with -Og -ggdb3, the backtraces may be better again, but reduced optimisation can hide bugs too. |
Well, thank you again for looking. I've created a Qt bug report with all the info we've got here:
https://bugreports.qt.io/browse/QTBUG-129193 |
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