Bug 372033 - k3b crashing when sources for burning no longer available and then closing the application
Summary: k3b crashing when sources for burning no longer available and then closing th...
Status: REPORTED
Alias: None
Product: k3b
Classification: Applications
Component: general (show other bugs)
Version: unspecified
Platform: openSUSE Linux
: NOR crash
Target Milestone: ---
Assignee: k3b developers
URL:
Keywords: drkonqi
Depends on:
Blocks:
 
Reported: 2016-11-03 18:48 UTC by Gerd Grass
Modified: 2021-01-10 23:10 UTC (History)
3 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:


Attachments
Description to reproduce the bug (1.12 MB, application/pdf)
2021-01-10 01:39 UTC, Gerd Grass
Details
Crash Report (26.16 KB, text/plain)
2021-01-10 01:43 UTC, Gerd Grass
Details

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Description Gerd Grass 2016-11-03 18:48:36 UTC
Application: k3b (2.0.80)
KDE Platform Version: 4.14.9
Qt Version: 4.8.6
Operating System: Linux 3.16.7-48-desktop x86_64
Distribution: "openSUSE 13.2 (Harlequin) (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
Reading Audio CD from CD to PC (ripping it to MP3).
Moving those MP3 files to another location.
In k3b they were still visible.
I anted to what happens when burning those not existing files.
k3b started burning but no progress (always 0 %)
Finally I removed those non existing files from the k3b list.
When then closing k3b it crashed.

- Unusual behavior I noticed:
Usually user does not burn files which are not there any more.
In that case it might be worth k3b checking whether files still exist. 

This "bug" is not an urgent one. No need for an urgent fix.

- Custom settings of the application:

-- Backtrace:
Application: K3b (k3b), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f14b181e900 (LWP 2484))]

Thread 3 (Thread 0x7f1493dcf700 (LWP 2487)):
#0  0x00007f14aadd12bd in poll () at /lib64/libc.so.6
#1  0x00007f14b1465f20 in  () at /opt/lib/libmediaclient.so
#2  0x00007f14b1466c62 in poll () at /opt/lib/libmediaclient.so
#3  0x00007f14a4d44be4 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f14a4d44cec in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f14ac50e0de in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#6  0x00007f14ac4dfe6f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#7  0x00007f14ac4e0165 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#8  0x00007f14ac3dd0bf in QThread::exec() () at /usr/lib64/libQtCore.so.4
#9  0x00007f14ac4c1783 in  () at /usr/lib64/libQtCore.so.4
#10 0x00007f14ac3df79f in  () at /usr/lib64/libQtCore.so.4
#11 0x00007f14aa6d10a4 in start_thread () at /lib64/libpthread.so.0
#12 0x00007f14aadd96ed in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f14854b1700 (LWP 2994)):
#0  0x00007f14aa6d53e8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f14ac3de3ba in  () at /usr/lib64/libQtCore.so.4
#2  0x00007f14ac3deb46 in QThread::sleep(unsigned long) () at /usr/lib64/libQtCore.so.4
#3  0x00007f14b0f14aa5 in K3b::MediaCache::PollThread::run() () at /usr/lib64/libk3blib.so.6
#4  0x00007f14ac3df79f in  () at /usr/lib64/libQtCore.so.4
#5  0x00007f14aa6d10a4 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f14aadd96ed in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f14b181e900 (LWP 2484)):
[KCrash Handler]
#5  0x00007f14ac4f5116 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /usr/lib64/libQtCore.so.4
#6  0x00007f14b0f6a8de in K3b::AudioTrack::sourceAboutToBeRemoved(int) () at /usr/lib64/libk3blib.so.6
#7  0x00007f14b0f6a90e in K3b::AudioTrack::emitSourceAboutToBeRemoved(K3b::AudioDataSource*) () at /usr/lib64/libk3blib.so.6
#8  0x00007f14b0f79a05 in K3b::AudioDataSource::take() () at /usr/lib64/libk3blib.so.6
#9  0x00007f14b0f79a67 in K3b::AudioDataSource::~AudioDataSource() () at /usr/lib64/libk3blib.so.6
#10 0x00007f14b0f7e139 in K3b::AudioCdTrackSource::~AudioCdTrackSource() () at /usr/lib64/libk3blib.so.6
#11 0x00007f14b0f6b3bc in K3b::AudioTrack::~AudioTrack() () at /usr/lib64/libk3blib.so.6
#12 0x00007f14b0f6b4f9 in K3b::AudioTrack::~AudioTrack() () at /usr/lib64/libk3blib.so.6
#13 0x000000000047aace in _start ()

Reported using DrKonqi
Comment 1 Justin Zobel 2020-12-17 05:24:04 UTC
Thank you for the crash report.

As it has been a while since this was reported, can you please test and confirm if this issue is still occurring or if this bug report can be marked as resolved.

I have set the bug status to "needsinfo" pending your response, please change back to "reported" or "resolved/worksforme" when you respond, thank you.
Comment 2 Gerd Grass 2020-12-17 23:29:34 UTC
Issue is still occurring

I could generate once again a backtrace if required.

But the use case is not that relevant so it might not be worth to spend real effort.
Comment 3 Bug Janitor Service 2021-01-01 04:35:58 UTC
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 4 Christoph Feck 2021-01-09 16:22:00 UTC
A crash is not nice, and maybe we find a contributor who after reproducing the steps could fix it. Reopening.
Comment 5 Albert Astals Cid 2021-01-09 22:05:27 UTC
Could you please describe the exact steps 1 by 1 you do to make it crash i tried doing something "similar" to what i understood you're describing and all was fine
Comment 6 Gerd Grass 2021-01-10 01:39:14 UTC
Created attachment 134697 [details]
Description to reproduce the bug
Comment 7 Gerd Grass 2021-01-10 01:43:41 UTC
Created attachment 134698 [details]
Crash Report

I tried today 2 times to reproduce the bug.
In both times I could reproduce the bug.
Attached the crash report of the first try.
The PDF with the screenshots (previous attachment) was the second try.
Comment 8 Albert Astals Cid 2021-01-10 23:10:19 UTC
Ok, thanks for the detailed description, i need to find an empty CD-R first ^_^