Control: tags -1 +unreproducible Hi,
Unfortunately I cannot reproduce this SIGSEGV on my Debian Stable and Debian Sid. Could you reproduce it on a cleanly-installed OS, or provide a step-to-step guide that can guarantee the appearance of SIGSEGV? Thanks! Regards, Boyuan Yang 在 2023-07-03星期一的 17:28 +0200，Jörg Sommer写道： > Package: zbarcam-qt > Version: 0.23.92-7 > Severity: normal > > Hi, > > ``` > % zbarcam-qt > QSocketNotifier: Can only be used with threads started with QThread > zsh: segmentation fault (core dumped) zbarcam-qt > ``` > > ``` > PID: 348093 (zbarcam-qt) > UID: 1000 (joerg) > GID: 1000 (joerg) > Signal: 11 (SEGV) > Timestamp: Mon 2023-07-03 17:24:14 CEST (2min 36s ago) > Command Line: zbarcam-qt > Executable: /usr/bin/zbarcam-qt > Control Group: /user.slice/user-1000.slice/[email protected]/app.slice/app- > gnome-xterm-346692.scope > Unit: [email protected] > User Unit: app-gnome-xterm-346692.scope > Slice: user-1000.slice > Owner UID: 1000 (joerg) > Boot ID: 97d7ba24ffa04374b5a1e53268047297 > Machine ID: 523cb54753234ed08c13ec497d0d3b64 > Hostname: zenbook > Storage: /var/lib/systemd/coredump/core.zbarcam- > qt.1000.97d7ba24ffa04374b5a1e53268047297.348093.1688397854000000.zst > (present) > Size on Disk: 2.2M > Message: Process 348093 (zbarcam-qt) of user 1000 dumped core. > > Module libsystemd.so.0 from deb systemd-253.5-1.amd64 > Stack trace of thread 348093: > #0 0x00007f7d6cee0090 XCreateGC (libX11.so.6 + 0x22090) > #1 0x00007f7d70b4300c n/a (libzbar.so.0 + 0x2f00c) > #2 0x00007f7d7141d2c4 _ZN4zbar5QZBar11changeEventEP6QEvent > (libzbarqt.so.0 + 0xb2c4) > #3 0x00007f7d70da4d8f _ZN7QWidget5eventEP6QEvent > (libQt5Widgets.so.5 + 0x1a4d8f) > #4 0x00007f7d70d62fae > _ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent > (libQt5Widgets.so.5 + 0x162fae) > #5 0x00007f7d700b16f8 > _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5 + > 0x2b16f8) > #6 0x00007f7d70da5ea8 > _ZN7QWidget9setParentEPS_6QFlagsIN2Qt10WindowTypeEE (libQt5Widgets.so.5 + > 0x1a5ea8) > #7 0x00007f7d70d82ba5 > _ZN14QLayoutPrivate20reparentChildWidgetsEP7QWidget (libQt5Widgets.so.5 + > 0x182ba5) > #8 0x00007f7d70d8e340 _ZN7QWidget9setLayoutEP7QLayout > (libQt5Widgets.so.5 + 0x18e340) > #9 0x000055dbf37082db n/a (zbarcam-qt + 0x142db) > #10 0x000055dbf36ff9df n/a (zbarcam-qt + 0xb9df) > #11 0x00007f7d6f8456ca __libc_start_call_main (libc.so.6 + > 0x276ca) > #12 0x00007f7d6f845785 __libc_start_main_impl (libc.so.6 + > 0x27785) > #13 0x000055dbf36ffb41 n/a (zbarcam-qt + 0xbb41) > > Stack trace of thread 348096: > #0 0x00007f7d6f8a3156 __futex_abstimed_wait_common64 > (libc.so.6 + 0x85156) > #1 0x00007f7d6f8a5818 __pthread_cond_wait_common (libc.so.6 > + 0x87818) > #2 0x00007f7d6fed1a2b > _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt5Core.so.5 + > 0xd1a2b) > #3 0x00007f7d6c72fc7f n/a (libQt5WaylandClient.so.5 + > 0x7ac7f) > #4 0x00007f7d6fecbd43 n/a (libQt5Core.so.5 + 0xcbd43) > #5 0x00007f7d6f8a63ec start_thread (libc.so.6 + 0x883ec) > #6 0x00007f7d6f926a1c __clone3 (libc.so.6 + 0x108a1c) > > Stack trace of thread 348094: > #0 0x00007f7d6f9199ef __GI___poll (libc.so.6 + 0xfb9ef) > #1 0x00007f7d6f11e9ae n/a (libglib-2.0.so.0 + 0x549ae) > #2 0x00007f7d6f11eacc g_main_context_iteration (libglib- > 2.0.so.0 + 0x54acc) > #3 0x00007f7d70109836 > _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEvent > sFlagEE (libQt5Core.so.5 + 0x309836) > #4 0x00007f7d700b017b > _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 + > 0x2b017b) > #5 0x00007f7d6fecab87 _ZN7QThread4execEv (libQt5Core.so.5 + > 0xcab87) > #6 0x00007f7d6ca79487 n/a (libQt5DBus.so.5 + 0x17487) > #7 0x00007f7d6fecbd43 n/a (libQt5Core.so.5 + 0xcbd43) > #8 0x00007f7d6f8a63ec start_thread (libc.so.6 + 0x883ec) > #9 0x00007f7d6f926a1c __clone3 (libc.so.6 + 0x108a1c) > > Stack trace of thread 348101: > #0 0x00007f7d6f8a3156 __futex_abstimed_wait_common64 > (libc.so.6 + 0x85156) > #1 0x00007f7d6f8a5818 __pthread_cond_wait_common (libc.so.6 > + 0x87818) > #2 0x00007f7d5a10d989 n/a (crocus_dri.so + 0x10d989) > #3 0x00007f7d5a0c111b n/a (crocus_dri.so + 0xc111b) > #4 0x00007f7d5a10d8c7 n/a (crocus_dri.so + 0x10d8c7) > #5 0x00007f7d6f8a63ec start_thread (libc.so.6 + 0x883ec) > #6 0x00007f7d6f926a1c __clone3 (libc.so.6 + 0x108a1c) > > Stack trace of thread 348098: > #0 0x00007f7d6f8a3156 __futex_abstimed_wait_common64 > (libc.so.6 + 0x85156) > #1 0x00007f7d6f8a5818 __pthread_cond_wait_common (libc.so.6 > + 0x87818) > #2 0x00007f7d6fed1a2b > _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt5Core.so.5 + > 0xd1a2b) > #3 0x00007f7d7141fc95 _ZN4zbar11QZBarThread3runEv > (libzbarqt.so.0 + 0xdc95) > #4 0x00007f7d6fecbd43 n/a (libQt5Core.so.5 + 0xcbd43) > #5 0x00007f7d6f8a63ec start_thread (libc.so.6 + 0x883ec) > #6 0x00007f7d6f926a1c __clone3 (libc.so.6 + 0x108a1c) > > Stack trace of thread 348097: > #0 0x00007f7d6f9199ef __GI___poll (libc.so.6 + 0xfb9ef) > #1 0x00007f7d6c72fcd6 n/a (libQt5WaylandClient.so.5 + > 0x7acd6) > #2 0x00007f7d6fecbd43 n/a (libQt5Core.so.5 + 0xcbd43) > #3 0x00007f7d6f8a63ec start_thread (libc.so.6 + 0x883ec) > #4 0x00007f7d6f926a1c __clone3 (libc.so.6 + 0x108a1c) > ELF object binary architecture: AMD x86-64 > > [New LWP 348093] > [New LWP 348096] > [New LWP 348094] > [New LWP 348101] > [New LWP 348098] > [New LWP 348097] > [Thread debugging using libthread_db enabled] > Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". > Core was generated by `zbarcam-qt'. > Program terminated with signal SIGSEGV, Segmentation fault. > #0 0x00007f7d6cee0090 in XCreateGC (dpy=0x55dbf463cb30, d=9, > valuemask=valuemask@entry=0, values=values@entry=0x0) at ../../src/CrGC.c:74 > Download failed: Invalid argument. Continuing without source file > ./build/src/../../src/CrGC.c. > 74 ../../src/CrGC.c: Inappropriate ioctl for device. > [Current thread is 1 (Thread 0x7f7d6f72cd00 (LWP 348093))] > #0 0x00007f7d6cee0090 in XCreateGC (dpy=0x55dbf463cb30, d=9, > valuemask=valuemask@entry=0, values=values@entry=0x0) at ../../src/CrGC.c:74 > gc = <optimized out> > req = <optimized out> > ext = <optimized out> > #1 0x00007f7d70b4300c in _zbar_window_attach (w=0x55dbf469e4d0, > display=<optimized out>, win=<optimized out>) at window/x.c:168 > x = 0x55dbf47f3650 > __PRETTY_FUNCTION__ = "_zbar_window_attach" > attr = {x = 0, y = 0, width = 0, height = 0, border_width = 0, depth > = 0, visual = 0x0, root = 0, class = -981502976, bit_gravity = -951558571, > win_gravity = 0, backing_store = 0, backing_planes = 18446744073709551368, > backing_pixel = 0, save_under = 1819416496, colormap = 94403186311008, > map_installed = -194855200, map_state = 21979, all_event_masks = > 94403186779344, your_event_mask = 140176738365204, do_not_propagate_mask = > 94403188176416, override_redirect = -194386736, screen = 0x55dbf463cb30} > __func__ = "_zbar_window_attach" > #2 0x00007f7d7141d2c4 in zbar::Window::attach (x11_drawable=9, > x11_display_w32_hwnd=<optimized out>, this=0x55dbf469e410) at > ./include/zbar/Window.h:75 > No locals. > #3 zbar::QZBar::changeEvent (this=<optimized out>, event=<optimized out>) > at qt/QZBar.cpp:337 > locker = {val = 94403186779113} > #4 0x00007f7d70da4d8f in QWidget::event (this=0x55dbf46941d0, > event=0x7ffec0d79720) at kernel/qwidget.cpp:8986 > d = 0x55dbf469dc50 > #5 0x00007f7d70d62fae in QApplicationPrivate::notify_helper > (this=<optimized out>, receiver=0x55dbf46941d0, e=0x7ffec0d79720) at > kernel/qapplication.cpp:3640 > consumed = false > filtered = false > #6 0x00007f7d700b16f8 in QCoreApplication::notifyInternal2 > (receiver=0x55dbf46941d0, event=0x7ffec0d79720) at > kernel/qcoreapplication.cpp:1064 > selfRequired = true > result = false > cbdata = {0x55dbf46941d0, 0x7ffec0d79720, 0x7ffec0d796af} > d = <optimized out> > threadData = 0x55dbf462bee0 > scopeLevelCounter = {threadData = 0x55dbf462bee0} > #7 0x00007f7d700b18be in QCoreApplication::sendEvent (receiver=<optimized > out>, event=<optimized out>) at kernel/qcoreapplication.cpp:1462 > No locals. > #8 0x00007f7d70da5ea8 in QWidget::setParent (this=0x55dbf46941d0, > parent=<optimized out>, parent@entry=0x7ffec0d79a20, f=...) at > kernel/qwidget.cpp:10516 > e = {_vptr.QEvent = 0x7f7d7034bb10 <vtable for QEvent+16>, static > staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = > 0x7f7d70278ce0 <qt_meta_stringdata_QEvent>, data = 0x7f7d70278720 > <qt_meta_data_QEvent>, static_metacall = 0x0, relatedMetaObjects = 0x0, > extradata = 0x0}}, d = 0x0, t = 21, posted = 0, spont = 0, m_accept = 1, > reserved = 0} > d = 0x55dbf469dc50 > resized = <optimized out> > wasCreated = false > oldtlw = 0x55dbf46941d0 > desktopWidget = <optimized out> > newParent = <optimized out> > useStyleSheetPropagationInWidgetStyles = <optimized out> > #9 0x00007f7d70da6c78 in QWidget::setParent (parent=0x7ffec0d79a20, > this=<optimized out>) at kernel/qwidget.cpp:10365 > No locals. > #10 0x00007f7d70d82ba5 in QLayoutPrivate::reparentChildWidgets > (this=<optimized out>, mw=mw@entry=0x7ffec0d79a20) at kernel/qlayout.cpp:841 > pw = 0x0 > needShow = false > w = <optimized out> > item = <optimized out> > i = 1 > q = 0x55dbf470d6a0 > n = 5 > mwVisible = false > #11 0x00007f7d70d8e340 in QWidget::setLayout > (this=this@entry=0x7ffec0d79a20, l=l@entry=0x55dbf470d6a0) at > ../../include/QtWidgets/../../src/widgets/kernel/qlayout.h:64 > oldParent = <optimized out> > d = 0x55dbf465d250 > #12 0x000055dbf37082db in ZbarcamQZBar::ZbarcamQZBar (this=0x7ffec0d79a20, > names=0x7ffec0d79a08, verbose=<optimized out>) at zbarcam/zbarcam-qt.cpp:546 > videoList = 0x7f7d5c003200 > statusIcon = {d = 0x55dbf4669410} > openButton = 0x55dbf4678930 > optionsBoxLayout = 0x55dbf47bbd10 > pos = <optimized out> > active = <optimized out> > openIcon = {d = 0x55dbf469dbc0} > grid = 0x55dbf470d6a0 > button = <optimized out> > showControlsButton = 0x55dbf47b1fd0 > style = <optimized out> > yesIcon = {d = 0x55dbf4664f00} > results = 0x55dbf4695eb0 > showOptionsButton = <optimized out> > videoList = <optimized out> > style = <optimized out> > statusIcon = <optimized out> > yesIcon = <optimized out> > openButton = <optimized out> > openIcon = <optimized out> > results = <optimized out> > grid = <optimized out> > optionsBoxLayout = <optimized out> > pos = <optimized out> > button = <optimized out> > showOptionsButton = <optimized out> > showControlsButton = <optimized out> > active = <optimized out> > i = <optimized out> > val = <optimized out> > icon = <optimized out> > settings = <optimized out> > label = <optimized out> > button = <optimized out> > i = <optimized out> > #13 0x000055dbf36ff9df in main (argc=<optimized out>, argv=<optimized out>) > at zbarcam/zbarcam-qt.cpp:1041 > verbose = 0 > app = {<QGuiApplication> = {<QCoreApplication> = {<QObject> = > {_vptr.QObject = 0x7f7d71277ee8 <vtable for QApplication+16>, static > staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = > 0x7f7d7027d3e0 <qt_meta_stringdata_QObject>, data = 0x7f7d7027d2c0 > <qt_meta_data_QObject>, static_metacall = 0x7f7d700e76e0 > <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, > relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x55dbf462bd70}, > static staticQtMetaObject = {d = {superdata = {direct = 0x0}, stringdata = > 0x7f7d70280380 <qt_meta_stringdata_Qt>, data = 0x7f7d7027d500 > <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, > extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = > 0x7f7d70343140 <QObject::staticMetaObject>}, stringdata = 0x7f7d70278260 > <qt_meta_stringdata_QCoreApplication>, data = 0x7f7d70278140 > <qt_meta_data_QCoreApplication>, static_metacall = 0x7f7d700b2f10 > <QCoreApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, > void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, static self = > 0x7ffec0d79a10}, static staticMetaObject = {d = {superdata = {direct = > 0x7f7d7034ba60 <QCoreApplication::staticMetaObject>}, stringdata = > 0x7f7d709b6740 <qt_meta_stringdata_QGuiApplication>, data = 0x7f7d709b64c0 > <qt_meta_data_QGuiApplication>, static_metacall = 0x7f7d70536050 > <QGuiApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, > void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static > staticMetaObject = {d = {superdata = {direct = 0x7f7d70ab30c0 > <QGuiApplication::staticMetaObject>}, stringdata = 0x7f7d711138c0 > <qt_meta_stringdata_QApplication>, data = 0x7f7d71113740 > <qt_meta_data_QApplication>, static_metacall = 0x7f7d70d66ad0 > <QApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, > void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}} > parser = {d = 0x55dbf465ca10} > debugOption = {d = {d = 0x55dbf465cf70}} > verboseOption = {d = {d = 0x55dbf465d150}} > args = {<QList<QString>> = {<QListSpecialMethods<QString>> = {<No > data fields>}, {p = {static shared_null = {ref = {atomic = {_q_value = > std::atomic<int> = { -1 }}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, > d = 0x7f7d70198630 <QListData::shared_null>}, d = 0x7f7d70198630 > <QListData::shared_null>}}, <No data fields>} > window = {<QWidget> = {<QObject> = {_vptr.QObject = 0x55dbf370e380 > <vtable for ZbarcamQZBar+16>, static staticMetaObject = {d = {superdata = > {direct = 0x0}, stringdata = 0x7f7d7027d3e0 <qt_meta_stringdata_QObject>, > data = 0x7f7d7027d2c0 <qt_meta_data_QObject>, static_metacall = > 0x7f7d700e76e0 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, > int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = > 0x55dbf465d250}, static staticQtMetaObject = {d = {superdata = {direct = > 0x0}, stringdata = 0x7f7d70280380 <qt_meta_stringdata_Qt>, data = > 0x7f7d7027d500 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects > = 0x0, extradata = 0x0}}}, <QPaintDevice> = {_vptr.QPaintDevice = > 0x55dbf370e530 <vtable for ZbarcamQZBar+448>, painters = 0, reserved = 0x0}, > static staticMetaObject = {d = {superdata = {direct = 0x7f7d70343140 > <QObject::staticMetaObject>}, stringdata = 0x7f7d71117420 > <qt_meta_stringdata_QWidget>, data = 0x7f7d71116d40 <qt_meta_data_QWidget>, > static_metacall = 0x7f7d70da3640 <QWidget::qt_static_metacall(QObject*, > QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = > 0x0}}, data = 0x55dbf465d370}, static staticMetaObject = {d = {superdata = > {direct = 0x7f7d71279300 <QWidget::staticMetaObject>}, stringdata = > 0x55dbf3709b40 <qt_meta_stringdata_ZbarcamQZBar>, data = 0x55dbf3709a20 > <qt_meta_data_ZbarcamQZBar>, static_metacall = 0x55dbf3701090 > <ZbarcamQZBar::qt_static_metacall(QObject*, QMetaObject::Call, int, > void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, file = {d = > 0x7f7d70197b20 <QArrayData::shared_null>}, zbar = 0x55dbf46941d0, ZBarMenu = > 0x55dbf469dbe0, statusButton = 0x55dbf465e150, controlGroup = > 0x55dbf483ab40, optionsGroup = 0x55dbf473c240, resolutions = 0x0, > controlBoxLayout = 0x55dbf483aac0, signalMapper = 0x0, dbus_enabled = false, > show_options = true, show_controls = true, geometry = {d = 0x7f7d70197b20 > <QArrayData::shared_null>}, res = {d = 0x7f7d70197b20 > <QArrayData::shared_null>}, curWidth = 0, curHeight = 0} > --- END --- > ``` > > Regards Jörg > > > > -- System Information: > Debian Release: trixie/sid > APT prefers unstable-debug > APT policy: (500, 'unstable-debug'), (500, 'unstable'), (1, 'experimental- > debug'), (1, 'experimental') > Architecture: amd64 (x86_64) > Foreign Architectures: i386 > > Kernel: Linux 6.3.0-0-amd64 (SMP w/8 CPU threads; PREEMPT) > Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE not > set > Shell: /bin/sh linked to /usr/bin/dash > Init: systemd (via /run/systemd/system) > LSM: AppArmor: enabled > > Versions of packages zbarcam-qt depends on: > ii libc6 2.37-3 > ii libgcc-s1 13.1.0-7 > ii libqt5core5a 5.15.8+dfsg-12 > ii libqt5gui5 5.15.8+dfsg-12 > ii libqt5widgets5 5.15.8+dfsg-12 > ii libstdc++6 13.1.0-7 > ii libzbarqt0 0.23.92-7 > > zbarcam-qt recommends no packages. > > zbarcam-qt suggests no packages. > > -- no debconf information
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