view categorized crash #1530

nicman23 · 2019-08-27T14:37:42Z

Describe the bug
Instant crash (seg fault)

To Reproduce
Steps to reproduce the behavior:

library view
set group by album
sort by artist year album
set view categorized

Version Info

OS: Arch Linux
Cantata Version: master
MPD Version: 0.21.14

CDrummond · 2019-09-01T07:25:41Z

No crash for me, just tried. However, Cantata should have printed a stack trace to the console. Please start Cantata from a console, reproduce crash, and attach output here. Thanks.

nicman23 · 2019-09-02T12:10:48Z

no output at all.

with gdb it outputs:

sing host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7ffff083b700 (LWP 4792)]
[New Thread 0x7fffe9b28700 (LWP 4793)]
Icon theme "gnome" not found.
[New Thread 0x7fffe3fff700 (LWP 4794)]
[New Thread 0x7fffe37fe700 (LWP 4795)]
[New Thread 0x7fffe2ffd700 (LWP 4796)]
[New Thread 0x7fffe0f3b700 (LWP 4797)]
[New Thread 0x7fffcf929700 (LWP 4798)]
[New Thread 0x7fffcf128700 (LWP 4799)]
[New Thread 0x7fffce927700 (LWP 4800)]
[New Thread 0x7fffce126700 (LWP 4801)]
[New Thread 0x7fffcd925700 (LWP 4802)]
[New Thread 0x7fffcd124700 (LWP 4803)]
[New Thread 0x7fffcc923700 (LWP 4804)]
[New Thread 0x7fffaffff700 (LWP 4805)]
[New Thread 0x7fffaf7fe700 (LWP 4806)]
[New Thread 0x7fffaeffd700 (LWP 4807)]
[New Thread 0x7fffae7fc700 (LWP 4808)]
[New Thread 0x7fffadffb700 (LWP 4809)]
[New Thread 0x7fffad7fa700 (LWP 4810)]
[New Thread 0x7fffacff9700 (LWP 4811)]
[New Thread 0x7fff8bfff700 (LWP 4812)]
[New Thread 0x7fff8b7fe700 (LWP 4813)]
[New Thread 0x7fff8affd700 (LWP 4814)]
[New Thread 0x7fff8a7fc700 (LWP 4815)]
[New Thread 0x7fff89ffb700 (LWP 4816)]

Thread 1 "cantata" received signal SIGSEGV, Segmentation fault.
0x00007ffff6244f8f in QString::reallocData(unsigned int, bool) () from /usr/lib/libQt5Core.so.5

CDrummond · 2019-09-02T12:40:06Z

Can you recompile Cantata with debug, and try again? Pass CMAKE_BUILD_TYPE=Debug when invoking CMake.

nicman23 · 2019-09-02T14:39:26Z

Thread 1 "cantata" received signal SIGSEGV, Segmentation fault.
0x00007ffff6337cd8 in QAbstractItemModel::hasIndex(int, int, QModelIndex const&) const ()

if you need anything more from gdb tell me because i have forgotten how to use it :P

CDrummond · 2019-09-02T15:44:19Z

Thanks. Please re-run in gdb, and when it crashes type where This will then list all the call stack.

nicman23 · 2019-09-02T16:17:15Z

#0  0x00007ffff6337cd8 in QAbstractItemModel::hasIndex(int, int, QModelIndex const&) const () from /usr/lib/libQt5Core.so.5
#1  0x000055555592a186 in SqlLibraryModel::index (this=0x555555e3f940, row=59, column=0, parent=...) at /tmp/yaytmp-1000/cantata-git/src/cantata-git/models/sqllibrarymodel.cpp:276
#2  0x00007ffff636028a in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007ffff63602c2 in QSortFilterProxyModel::mapToSource(QModelIndex const&) const () from /usr/lib/libQt5Core.so.5
#4  0x00007ffff6360555 in QSortFilterProxyModel::data(QModelIndex const&, int) const () from /usr/lib/libQt5Core.so.5
#5  0x0000555555ade0bb in QModelIndex::data (arole=399415562, this=0x7fffff7ff110) at /usr/include/qt/QtCore/qabstractitemmodel.h:462
#6  KCategorizedView::Private::categoryForIndex (this=<optimized out>, index=...) at /tmp/yaytmp-1000/cantata-git/src/cantata-git/3rdparty/kcategorizedview/kcategorizedview.cpp:380
#7  0x0000555555ae114c in KCategorizedView::visualRect (this=0x555556191320, index=...) at /tmp/yaytmp-1000/cantata-git/src/cantata-git/3rdparty/kcategorizedview/kcategorizedview.cpp:559
#8  0x0000555555adefe9 in KCategorizedView::Private::blockHeight (this=0x555556119200, category=...) at /tmp/yaytmp-1000/cantata-git/src/cantata-git/3rdparty/kcategorizedview/kcategorizedview.cpp:227
#9  0x0000555555adf438 in KCategorizedView::Private::blockPosition (this=0x555556119200, category=...) at /usr/include/qt/QtCore/qhash.h:321
#10 0x0000555555ae1430 in KCategorizedView::visualRect (this=0x555556191320, index=...) at /tmp/yaytmp-1000/cantata-git/src/cantata-git/3rdparty/kcategorizedview/kcategorizedview.cpp:574
#11 0x0000555555adeffb in KCategorizedView::Private::blockHeight (this=0x555556119200, category=...) at /tmp/yaytmp-1000/cantata-git/src/cantata-git/3rdparty/kcategorizedview/kcategorizedview.cpp:228
#12 0x0000555555adf438 in KCategorizedView::Private::blockPosition (this=0x555556119200, category=...) at /usr/include/qt/QtCore/qhash.h:321
#13 0x0000555555ae1430 in KCategorizedView::visualRect (this=0x555556191320, index=...) at /tmp/yaytmp-1000/cantata-git/src/cantata-git/3rdparty/kcategorizedview/kcategorizedview.cpp:574
#14 0x0000555555adeffb in KCategorizedView::Private::blockHeight (this=0x555556119200, category=...) at /tmp/yaytmp-1000/cantata-git/src/cantata-git/3rdparty/kcategorizedview/kcategorizedview.cpp:228
#15 0x0000555555adf438 in KCategorizedView::Private::blockPosition (this=0x555556119200, category=...) at /usr/include/qt/QtCore/qhash.h:321
#16 0x0000555555ae1430 in KCategorizedView::visualRect (this=0x555556191320, index=...) at /tmp/yaytmp-1000/cantata-git/src/cantata-git/3rdparty/kcategorizedview/kcategorizedview.cpp:574
#17 0x0000555555adeffb in KCategorizedView::Private::blockHeight (this=0x555556119200, category=...) at /tmp/yaytmp-1000/cantata-git/src/cantata-git/3rdparty/kcategorizedview/kcategorizedview.cpp:228
#18 0x0000555555adf438 in KCategorizedView::Private::blockPosition (this=0x555556119200, category=...) at /usr/include/qt/QtCore/qhash.h:321

after that it repeats the last 3 lines (to the thousands )

CDrummond · 2019-09-02T17:15:23Z

Thanks for that. However, not sure what to do - as the crash is in Qt code (hasIndex). KCategorizedView is a piece of KDE code that I just copied into Cantata. Guess its being misused somehow :(

nicman23 · 2019-09-03T15:53:58Z

what version of qt libs are your system running? perhaps it is an upstream regression?

CDrummond · 2019-09-04T06:43:31Z

Qt 5.12 (according to synaptic) on Ubuntu 19.04

nicman23 · 2019-10-20T16:04:59Z

looking more into this, it only happens with sort Ablums options that start with Artists as the first filter. So Album, Artist, Year does not crash but Artist, Album, Year does

CDrummond · 2019-10-22T06:33:13Z

Still no crash for me, sorry.

nicman23 · 2019-10-23T10:29:41Z

errrrrmmm, it also crashes in a 18.04.03 ubuntu vm i spinned up just for testing it.

latest master with compiled with debian folder from upstream

cantata.log.txt

CDrummond · 2019-11-07T18:40:01Z

I've disabled this by default. I have no time to look into this, and I'd like to release 2.4.0 soon.

nicman23 · 2020-02-17T14:15:21Z

so now that it is enabled by default should this be reopened

nicman23 · 2020-11-29T13:12:26Z

hey fyi this still crashes

CDrummond · 2020-11-29T13:20:43Z

Not unless you are going to investigate. Does not, and never has, crash for me - but then I nolonger use this.

Issue #1530

Issue CDrummond#1530

ecesar88 · 2021-11-28T03:24:18Z

Hello! I'm also facing the same exact issue.

CDrummond · 2021-11-29T08:11:51Z

@fP4rad0x This view has been disabled for the next release. I no longer actively use Cantata nor MPD (switched to LMS over 4 years ago), so have no time to look into this.

CDrummond closed this as completed in 267adea Nov 7, 2019

CDrummond added the wontfix label Nov 7, 2019

CDrummond added a commit that referenced this issue Nov 29, 2020

Disable categorized view, as its been reported to crash

1823699

Issue #1530

CDrummond mentioned this issue Jan 29, 2021

Error: "ASSERT: "block.firstIndex.isValid()" in file /build/cantata/src/cantata-2.4.2/3rdparty/kcategorizedview/kcategorizedview.cpp, line 569: #1673

Closed

jprjr pushed a commit to jprjr/cantata that referenced this issue Jul 17, 2021

Disable categorized view, as its been reported to crash

40910a9

Issue CDrummond#1530

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view categorized crash #1530

view categorized crash #1530

nicman23 commented Aug 27, 2019

CDrummond commented Sep 1, 2019

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nicman23 commented Sep 2, 2019 •

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CDrummond commented Nov 7, 2019

nicman23 commented Feb 17, 2020

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CDrummond commented Nov 29, 2020

ecesar88 commented Nov 28, 2021

CDrummond commented Nov 29, 2021

view categorized crash #1530

view categorized crash #1530

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nicman23 commented Aug 27, 2019

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