Bug#807805: vlc: Crash upon startup
Sebastian Ramacher
sramacher at debian.org
Mon May 9 05:12:05 UTC 2016
Control: reassign -2 libqt5widgets5,awesomewm
On 2016-05-08 13:56:35, Noah Meyerhans wrote:
> Control: tags -1 - moreinfo
> Control: found -1 2.2.2-6
>
> On Wed, Jan 27, 2016 at 11:29:52PM +0100, Sebastian Ramacher wrote:
> > On 2016-01-27 12:08:15, Hörmetjan Yiltiz wrote:
> > > Could you please tell me how to produce this informative feedback so that a
> > > diagnosis would be possible?
> >
> > Install gdb, vlc-dbg and qtbase5-dbg and follow the instructions at
> > https://wiki.debian.org/HowToGetABacktrace.
>
> Hello. I've recently started experiencing this bug after upgrading to
> stretch. I can confirm that the problem has something to do with running
> VLC under a non-KDE environment as was reported earlier. (In my case it
> is awesomewm). If I run in a full KDE environment it does not crash.
> When it does crash, it briefly displays the UI, then prints
> "QSystemTrayIcon::setVisible: No Icon set" repeatedly in the terminal
> before crashing.
Thank you for the backtrace. This seems to be an issue between Qt (or somewhere
in the Qt/KDE stack) and your WM. So I'm reassigning it to Qt and awesomewm.
Cheers
> Notable sections of a very large stack trace are below.
>
> Last lines before the crash:
> #0 0x00007ffff743b9ee in _IO_vfprintf_internal (s=0x7fffd99cb470, format=0x7fffe8e77850 "%s\n", ap=0x7fffd99cdb28)
> at vfprintf.c:1266
> #1 0x00007ffff743e751 in buffered_vfprintf (s=0x7ffff7794540 <_IO_2_1_stderr_>, format=<optimized out>,
> args=<optimized out>) at vfprintf.c:2346
> #2 0x00007ffff743bb8d in _IO_vfprintf_internal (s=s at entry=0x7ffff7794540 <_IO_2_1_stderr_>,
> format=format at entry=0x7fffe8e77850 "%s\n", ap=ap at entry=0x7fffd99cdb28) at vfprintf.c:1292
> #3 0x00007ffff74ebf89 in ___fprintf_chk (fp=0x7ffff7794540 <_IO_2_1_stderr_>, flag=flag at entry=1,
> format=format at entry=0x7fffe8e77850 "%s\n") at fprintf_chk.c:35
> #4 0x00007fffe8bc1d70 in fprintf (__fmt=0x7fffe8e77850 "%s\n", __stream=<optimized out>)
> at /usr/include/x86_64-linux-gnu/bits/stdio2.h:98
> #5 qDefaultMessageHandler (type=<optimized out>, context=..., buf=...) at global/qlogging.cpp:1489
> #6 0x00007fffe8bbc498 in qt_message_print (message=..., context=..., msgType=QtWarningMsg) at global/qlogging.cpp:1543
> #7 qt_message(QtMsgType, const QMessageLogContext &, const char *, typedef __va_list_tag __va_list_tag *) (
> msgType=msgType at entry=QtWarningMsg, context=...,
> msg=msg at entry=0x7fffe9a5b478 "QSystemTrayIcon::setVisible: No Icon set", ap=ap at entry=0x7fffd99cdcb0)
> at global/qlogging.cpp:266
> #8 0x00007fffe8bbd2bc in QMessageLogger::warning (this=this at entry=0x7fffd99cdd90,
> msg=msg at entry=0x7fffe9a5b478 "QSystemTrayIcon::setVisible: No Icon set") at global/qlogging.cpp:544
> #9 0x00007fffe9a14b18 in QSystemTrayIcon::setVisible (this=<optimized out>, visible=<optimized out>)
> at util/qsystemtrayicon.cpp:268
> #10 0x00007fffd33b2f95 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
> #11 0x00007fffd33b3fbd in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
> #12 0x00007fffd33b53fb in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
> #13 0x00007fffd33b57fe in KStatusNotifierItem::KStatusNotifierItem(QObject*) ()
> from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
> #14 0x00007fffd3be67e7 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platformthemes/KDEPlatformTheme.so
> #15 0x00007fffe9a15024 in QSystemTrayIconPrivate::install_sys_qpa (this=this at entry=0x7fffd6ba86c0)
> at util/qsystemtrayicon.cpp:684
> #16 0x00007fffe9a320be in QSystemTrayIconPrivate::install_sys (this=this at entry=0x7fffd6ba86c0)
> at util/qsystemtrayicon_x11.cpp:280
> #17 0x00007fffe9a14b27 in QSystemTrayIcon::setVisible (this=<optimized out>, visible=<optimized out>)
> at util/qsystemtrayicon.cpp:271
> #18 0x00007fffd33b2f95 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
> #19 0x00007fffd33b3fbd in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
> #20 0x00007fffd33b53fb in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
> #21 0x00007fffd33b57fe in KStatusNotifierItem::KStatusNotifierItem(QObject*) ()
> from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
>
> Notice that these lines occur many times in rapid succession in ever
> deepening stack frames, suggesting a recursive call:
> #22 0x00007fffd3be67e7 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platformthemes/KDEPlatformTheme.so
> #23 0x00007fffe9a15024 in QSystemTrayIconPrivate::install_sys_qpa (this=this at entry=0x7fffd6ba0f60)
> at util/qsystemtrayicon.cpp:684
> #24 0x00007fffe9a320be in QSystemTrayIconPrivate::install_sys (this=this at entry=0x7fffd6ba0f60)
> at util/qsystemtrayicon_x11.cpp:280
> #25 0x00007fffe9a14b27 in QSystemTrayIcon::setVisible (this=<optimized out>, visible=<optimized out>)
> at util/qsystemtrayicon.cpp:271
> #26 0x00007fffd33b2f95 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
> #27 0x00007fffd33b3fbd in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
> #28 0x00007fffd33b53fb in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
> #29 0x00007fffd33b57fe in KStatusNotifierItem::KStatusNotifierItem(QObject*) ()
> from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
>
> And the beginning of the thread:
>
> #10718 0x00007fffd3be67e7 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platformthemes/KDEPlatformTheme.so
> #10719 0x00007fffe9a15024 in QSystemTrayIconPrivate::install_sys_qpa (this=this at entry=0x7fffd440ac10)
> at util/qsystemtrayicon.cpp:684
> #10720 0x00007fffe9a320be in QSystemTrayIconPrivate::install_sys (this=this at entry=0x7fffd440ac10)
> at util/qsystemtrayicon_x11.cpp:280
> #10721 0x00007fffe9a14b27 in QSystemTrayIcon::setVisible (this=<optimized out>, visible=<optimized out>)
> at util/qsystemtrayicon.cpp:271
> #10722 0x00007fffd33b2f95 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
> #10723 0x00007fffd33b3fbd in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
> #10724 0x00007fffd33b53fb in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
> #10725 0x00007fffd33b57fe in KStatusNotifierItem::KStatusNotifierItem(QObject*) ()
> from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
> #10726 0x00007fffd3be67e7 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platformthemes/KDEPlatformTheme.so
> #10727 0x00007fffe9a15024 in QSystemTrayIconPrivate::install_sys_qpa (this=this at entry=0x7fffd44034b0)
> at util/qsystemtrayicon.cpp:684
> #10728 0x00007fffe9a320be in QSystemTrayIconPrivate::install_sys (this=this at entry=0x7fffd44034b0)
> at util/qsystemtrayicon_x11.cpp:280
> #10729 0x00007fffe9a14b27 in QSystemTrayIcon::setVisible (this=<optimized out>, visible=<optimized out>)
> at util/qsystemtrayicon.cpp:271
> #10730 0x00007fffd33b2f95 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
> #10731 0x00007fffd33b3fbd in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
> #10732 0x00007fffd33b53fb in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
> #10733 0x00007fffd33b57fe in KStatusNotifierItem::KStatusNotifierItem(QObject*) ()
> from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
> #10734 0x00007fffd3be67e7 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platformthemes/KDEPlatformTheme.so
> #10735 0x00007fffe9a15024 in QSystemTrayIconPrivate::install_sys_qpa (this=this at entry=0x7fffd43fbf70)
> at util/qsystemtrayicon.cpp:684
> #10736 0x00007fffe9a320be in QSystemTrayIconPrivate::install_sys (this=this at entry=0x7fffd43fbf70)
> at util/qsystemtrayicon_x11.cpp:280
> #10737 0x00007fffe9a14b27 in QSystemTrayIcon::setVisible (this=<optimized out>, visible=<optimized out>)
> at util/qsystemtrayicon.cpp:271
> #10738 0x00007fffd33b2f95 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
> #10739 0x00007fffd33b3fbd in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
> #10740 0x00007fffd33b53fb in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
> #10741 0x00007fffd33b57fe in KStatusNotifierItem::KStatusNotifierItem(QObject*) ()
> from /usr/lib/x86_64-linux-gnu/libKF5Notifications.so.5
> #10742 0x00007fffd3be67e7 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platformthemes/KDEPlatformTheme.so
> #10743 0x00007fffe9a15024 in QSystemTrayIconPrivate::install_sys_qpa (this=this at entry=0x7fffd439eea0)
> at util/qsystemtrayicon.cpp:684
> #10744 0x00007fffe9a320be in QSystemTrayIconPrivate::install_sys (this=this at entry=0x7fffd439eea0)
> at util/qsystemtrayicon_x11.cpp:280
> #10745 0x00007fffe9a14b27 in QSystemTrayIcon::setVisible (this=<optimized out>, visible=<optimized out>)
> at util/qsystemtrayicon.cpp:271
> #10746 0x00007fffe9c75403 in QSystemTrayIcon::show (this=0x7fffd439ee00)
> at /usr/include/x86_64-linux-gnu/qt5/QtWidgets/qsystemtrayicon.h:95
> #10747 0x00007fffe9c72ab5 in MainInterface::createSystray (this=0x7fffd4114770) at main_interface.cpp:1151
> #10748 0x00007fffe9c75a5e in MainInterface::initSystray (this=0x7fffd4114770) at main_interface.cpp:537
> #10749 0x00007fffe9c6ea6d in MainInterface::MainInterface (this=0x7fffd4114770, _p_intf=0x71f608) at main_interface.cpp:183
> #10750 0x00007fffe9c5eb00 in Thread (obj=0x71f608) at qt4.cpp:532
> #10751 0x00007ffff79a4454 in start_thread (arg=0x7fffd9aca700) at pthread_create.c:334
> #10752 0x00007ffff74ddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
>
> A guess, after not really spending more than a couple minutes looking at
> the code, is that the call to QSystemTrayIcon::isSystemTrayAvailable()
> in MainInterface::initSystray() (modules/gui/qt4/main_interface.cpp) is
> returning true when the system tray is not actually available. I have
> not investigated why it is that this might be happening.
>
> Thanks for your attention.
>
> noah
>
>
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--
Sebastian Ramacher
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