Bug 473407

Summary:	ktorrent doen't start anymore without almost immediately crashing
Product:	[Applications] ktorrent	Reporter:	Nikolai Försterling <devel2020>
Component:	general	Assignee:	Joris Guisson <joris.guisson>
Status:	RESOLVED DUPLICATE
Severity:	crash	CC:	devel2020, nicolas.fella
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	22.04.3
Target Milestone:	---
Platform:	Kubuntu
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	New crash information added by DrKonqi

Description Nikolai Försterling 2023-08-15 10:25:48 UTC

Application: ktorrent (22.04.3)

Qt Version: 5.15.3
Frameworks Version: 5.98.0
Operating System: Linux 6.1.0-1019-oem x86_64
Windowing System: X11
Distribution: Ubuntu 22.04.3 LTS
DrKonqi: 5.25.5 [KCrashBackend]

-- Information about the crash:
Maybe related to a invlid certificate that is asked to confirm (meanwhile accepted permanently), ktorrent always crashes some seconds after start.
Started from a shell:
$ ktorrent
KCrash: crashing... crashRecursionCounter = 2
KCrash: Application Name = ktorrent path = /usr/bin pid = 51907
KCrash: Arguments: /usr/bin/ktorrent
KCrash: Attempting to start /usr/lib/x86_64-linux-gnu/libexec/drkonqi

The crash can be reproduced every time.

-- Backtrace:
Application: KTorrent (ktorrent), signal: Segmentation fault

[KCrash Handler]
#4  0x00007f0f4c0c194c in kt::MagnetManager::update() () at /lib/x86_64-linux-gnu/libktcore.so.16
#5  0x0000558ab74fbfdc in  ()
#6  0x00007f0f49ef1793 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f0f49ef57fe in QTimer::timeout(QTimer::QPrivateSignal) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f0f49ee733f in QObject::event(QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f0f4ab6c713 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007f0f49eb9e3a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f0f49f123eb in QTimerInfoList::activateTimers() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f0f49f12d34 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f0f48651d3b in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#14 0x00007f0f486a7258 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007f0f4864f3e3 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007f0f49f130b8 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f0f49eb875b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f0f49ec0cf4 in QCoreApplication::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x0000558ab74eed8a in  ()
#20 0x00007f0f49429d90 in __libc_start_call_main (main=main@entry=0x558ab74e9bd0, argc=argc@entry=1, argv=argv@entry=0x7fffe79082d8) at ../sysdeps/nptl/libc_start_call_main.h:58
#21 0x00007f0f49429e40 in __libc_start_main_impl (main=0x558ab74e9bd0, argc=1, argv=0x7fffe79082d8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffe79082c8) at ../csu/libc-start.c:392
#22 0x0000558ab74f0d75 in  ()
[Inferior 1 (process 9191) detached]

The reporter indicates this bug may be a duplicate of or related to bug 449120, bug 449121, bug 459271, bug 456207.

Reported using DrKonqi

Comment 1 Nikolai Försterling 2023-08-15 10:55:05 UTC

Created attachment 160978 [details]
New crash information added by DrKonqi

ktorrent (22.04.3) using Qt 5.15.3

The last console output is:
[warn] epoll_wait: Ungültiger Dateideskriptor
[warn] epoll_wait: Ungültiger Dateideskriptor
[warn] epoll_wait: Ungültiger Dateideskriptor
(invalid file descriptor)
The filesystem the torrents are written to/read from has no errors

-- Backtrace (Reduced):
#4  0x00007f95ff5ab94c in kt::MagnetManager::update() () at /lib/x86_64-linux-gnu/libktcore.so.16
[...]
#7  0x00007f95fd4f57fe in QTimer::timeout(QTimer::QPrivateSignal) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f95fd4e733f in QObject::event(QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f95fe16c713 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007f95fd4b9e3a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5

Comment 2 Nicolas Fella 2023-08-15 11:50:48 UTC


*** This bug has been marked as a duplicate of bug 458057 ***