Details
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Bug
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Resolution: Fixed
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P1: Critical
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6.8.2
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None
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Linux/Wayland,
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ba18ae386 (dev), c6fdf954e (6.9), 802beaa3f (6.8), fd857d400 (dev), 56993ad55 (6.9), 2c8b1dc95 (6.8)
Description
After upgrading from Qt 6.8.1 to 6.8.2, both Tumbleweed and Fedora hit crashes of some executables: https://openqa.opensuse.org/tests/4830727#step/coredump_collect/7 https://bugs.kde.org/show_bug.cgi?id=499537
Backtrace from the kde bug report:
#0 std::__atomic_base<QReadWriteLockPrivate*>::load (this=0x0, __m=std::memory_order_relaxed) at /usr/include/c++/15/bits/atomic_base.h:829
#1 std::atomic<QReadWriteLockPrivate*>::load (this=0x0, __m=std::memory_order_relaxed) at /usr/include/c++/15/atomic:585
#2 QAtomicOps<QReadWriteLockPrivate*>::loadRelaxed<QReadWriteLockPrivate*> (_q_value=<error reading variable: Cannot access memory at address 0x0>)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/thread/qatomic_cxx11.h:202
#3 QBasicAtomicPointer<QReadWriteLockPrivate>::loadRelaxed (this=0x0) at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/thread/qbasicatomic.h:170
#4 QReadWriteLock::tryLockForWrite (this=0x0, timeout=...) at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/thread/qreadwritelock.cpp:302
#5 0x00007f68d9e4badd in QReadWriteLock::lockForWrite (this=<optimized out>) at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/thread/qreadwritelock.h:78
#6 0x00007f68da0d2f50 in QWriteLocker::relock (this=<synthetic pointer>) at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/thread/qreadwritelock.h:167
#7 QWriteLocker::QWriteLocker (this=<synthetic pointer>, areadWriteLock=0x0) at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/thread/qreadwritelock.h:180
#8 QSystemLocaleData::readEnvironment (this=0x0) at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/text/qlocale_unix.cpp:44
#9 0x00007f68da0d362c in QSystemLocale::query (this=<optimized out>, type=QSystemLocale::LocaleChanged, in=...)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/text/qlocale_unix.cpp:132
#10 0x00007f68d9fb8df5 in updateSystemPrivate () at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/text/qlocale.cpp:786
#11 0x00007f68d9fb931b in systemData (sysIndex=0x0) at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/text/qlocale.cpp:831
#12 QLocale::QLocale (this=this@entry=0x7fffadc3b1f8) at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/text/qlocale.cpp:1118
#13 0x00007f68d9ea99b7 in QResourceFileEnginePrivate::QResourceFileEnginePrivate (this=0x55f42801e2a0)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/io/qresource.cpp:1381
#14 QResourceFileEngine::QResourceFileEngine (this=this@entry=0x55f428023bc0, file=...)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/io/qresource.cpp:1413
#15 0x00007f68d9e90ad8 in std::make_unique<QResourceFileEngine, QString const&> () at /usr/include/c++/15/bits/unique_ptr.h:1076
#16 _q_createLegacyEngine_recursive (entry=..., data=..., engine=std::unique_ptr<QAbstractFileEngine> = {...}, resolvingEntry=resolvingEntry@entry=false)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/io/qfilesystemengine.cpp:114
#17 0x00007f68d9e90c03 in QFileSystemEngine::createLegacyEngine (entry=..., data=...)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/io/qfilesystemengine.cpp:168
#18 0x00007f68d9e8a852 in QFileInfo::exists (path=...) at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/io/qfileinfo.cpp:752
#19 0x00007f68d9e827e9 in QFile::exists (fileName=...) at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/io/qfile.cpp:370
#20 0x00007f68d9e4f818 in findConfiguration () at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/global/qlibraryinfo.cpp:106
#21 0x00007f68d9e4fb7b in QLibrarySettings::load (
this=0x7f68da47dff0 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_qt_library_settings> >::instance()::holder>)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/global/qlibraryinfo.cpp:79
--Type <RET> for more, q to quit, c to continue without paging--c
#22 0x00007f68d9e507ce in QLibrarySettings::QLibrarySettings (
this=0x7f68da47dff0 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_qt_library_settings> >::instance()::holder>)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/global/qlibraryinfo.cpp:59
#23 (anonymous namespace)::Q_QGS_qt_library_settings::innerFunction (
pointer=0x7f68da47dff0 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_qt_library_settings> >::instance()::holder>)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/global/qlibraryinfo.cpp:55
#24 QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_qt_library_settings>::Holder (
this=0x7f68da47dff0 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_qt_library_settings> >::instance()::holder>)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/global/qglobalstatic.h:37
#25 QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_qt_library_settings> >::instance ()
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/global/qglobalstatic.h:100
#26 QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_qt_library_settings> >::operator() (this=<optimized out>)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/global/qglobalstatic.h:82
#27 havePaths () at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/global/qlibraryinfo.cpp:148
#28 QLibraryInfoPrivate::paths (p=p@entry=QLibraryInfo::DataPath, usageMode=usageMode@entry=QLibraryInfoPrivate::RegularUsage)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/global/qlibraryinfo.cpp:610
#29 0x00007f68d9e51346 in QLibraryInfoPrivate::path (p=p@entry=QLibraryInfo::DataPath, usageMode=usageMode@entry=QLibraryInfoPrivate::RegularUsage)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/global/qlibraryinfo.cpp:669
#30 0x00007f68d9e51434 in QLibraryInfo::path (p=p@entry=QLibraryInfo::DataPath)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/global/qlibraryinfo.cpp:523
#31 0x00007f68d9ea2e89 in QLoggingRegistry::initializeRules (
this=this@entry=0x7f68da47ed20 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_qtLoggingRegistry> >::instance()::holder>)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/io/qloggingregistry.cpp:310
#32 0x00007f68d9ea3cdd in QLoggingRegistry::QLoggingRegistry (
this=0x7f68da47ed20 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_qtLoggingRegistry> >::instance()::holder>)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/io/qloggingregistry.cpp:239
#33 (anonymous namespace)::Q_QGS_qtLoggingRegistry::innerFunction (
pointer=0x7f68da47ed20 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_qtLoggingRegistry> >::instance()::holder>)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/io/qloggingregistry.cpp:29
#34 QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_qtLoggingRegistry>::Holder (
this=0x7f68da47ed20 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_qtLoggingRegistry> >::instance()::holder>)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/global/qglobalstatic.h:37
#35 QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_qtLoggingRegistry> >::instance ()
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/global/qglobalstatic.h:100
#36 QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_qtLoggingRegistry> >::operator() (this=<optimized out>)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/global/qglobalstatic.h:82
#37 QLoggingRegistry::instance () at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/io/qloggingregistry.cpp:427
#38 0x00007f68d9e9ee6f in QLoggingCategory::init (
this=0x7f68da47ecd0 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_qtDefaultCategory> >::instance()::holder>, category=<optimized out>,
severityLevel=QtDebugMsg) at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/io/qloggingcategory.cpp:188
#39 0x00007f68d9e9f01d in (anonymous namespace)::Q_QGS_qtDefaultCategory::innerFunction (
pointer=0x7f68da47ecd0 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_qtDefaultCategory> >::instance()::holder>)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/io/qloggingcategory.cpp:10
#40 QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_qtDefaultCategory>::Holder (
this=0x7f68da47ecd0 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_qtDefaultCategory> >::instance()::holder>)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/global/qglobalstatic.h:37
#41 QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_qtDefaultCategory> >::instance ()
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/global/qglobalstatic.h:100
#42 QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_qtDefaultCategory> >::operator() (this=<optimized out>)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/global/qglobalstatic.h:82
#43 QLoggingCategory::defaultCategory () at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/io/qloggingcategory.cpp:317
#44 0x00007f68d9e52c1c in qt_message_print (msgType=QtWarningMsg, context=..., message=...)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/global/qlogging.cpp:2084
#45 0x00007f68d9e52da6 in qt_message(QtMsgType, const QMessageLogContext &, const char *, typedef __va_list_tag __va_list_tag *) (msgType=msgType@entry=QtWarningMsg,
context=..., msg=msg@entry=0x7f68da2cfae8 "QThreadStorage: Thread %p exited after QThreadStorage %d destroyed", ap=ap@entry=0x7fffadc3bc28)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/global/qlogging.cpp:379
#46 0x00007f68d9e00fbc in QMessageLogger::warning (this=this@entry=0x7fffadc3be70,
msg=msg@entry=0x7f68da2cfae8 "QThreadStorage: Thread %p exited after QThreadStorage %d destroyed")
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/global/qlogging.cpp:634
#47 0x00007f68da0ac25e in QThreadStorageData::finish (p=0x55f42801d598) at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/thread/qthreadstorage.cpp:160
#48 0x00007f68da09f23a in operator() (__closure=<optimized out>) at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/thread/qthread_unix.cpp:406
#49 (anonymous namespace)::terminate_on_exception<QThreadPrivate::finish()::<lambda()> >(struct {...} &&) (t=...)
at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/thread/qthread_unix.cpp:311
#50 0x00007f68da09f4d5 in QThreadPrivate::finish (this=<optimized out>) at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/thread/qthread_unix.cpp:386
#51 destroy_current_thread_data (p=0x55f42801d520) at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/thread/qthread_unix.cpp:130
#52 Cleanup::~Cleanup (this=<optimized out>) at /usr/src/debug/qt6-qtbase-6.8.2-1.fc42.x86_64/src/corelib/thread/qthread_unix.cpp:180
#53 0x00007f68d99914c1 in __run_exit_handlers (status=0, listp=0x7f68d9b5e680 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true,
run_dtors=run_dtors@entry=true) at exit.c:118
#54 0x00007f68d999159e in __GI_exit (status=<optimized out>) at exit.c:148
#55 0x00007f68d99785fc in __libc_start_call_main (main=main@entry=0x55f3f396f5d0 <main>, argc=argc@entry=1, argv=argv@entry=0x7fffadc3c0b8)
at ../sysdeps/nptl/libc_start_call_main.h:74
#56 0x00007f68d99786a8 in __libc_start_main_impl (main=0x55f3f396f5d0 <main>, argc=1, argv=0x7fffadc3c0b8, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7fffadc3c0a8) at ../csu/libc-start.c:360
#57 0x000055f3f396f8f5 in _start ()
Apparently thread data destruction on exit triggers a warning message, but initialization of the logging system doesn't work at this stage of program teardown anymore.
Reverting 38f287443c82510719079a254910424b5e510b25. and 5acbda4b06ea5f494b56353ff9df60e1a016b55a makes the crashes disappear.
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