https://bugs.kde.org/show_bug.cgi?id=364748
Bug ID: 364748
Summary: baloo_file_extractor segfault at startup of baloo_file
Product: frameworks-baloo
Version: 5.23.0
Platform: Debian unstable
OS: Linux
Status: UNCONFIRMED
Severity: crash
Priority: NOR
Component: Baloo File Daemon
Assignee: m...@vhanda.in
Reporter: kdeuse...@gmail.com
CC: pinak.ah...@gmail.com
I noticed that for a long time baloo has only index half of my home directory:
user@debian:~/baloo$ balooctl status
Baloo File Indexer is running
Indexer state: Indexing file content
Indexed 7832 / 15848 files
Current size of index is 122.47 MiB
Resetting baloo (logging out, deleting all baloo related file) yields to
indexing from scratch, but it stops around the same file count and does not
index any further.
Stopping, restarting, resuming the file indexer does not help at all.
Everytime baloo_file gets started it immediately segfaults, so I tried to debug
the problem:
user@debian:~/baloo$ gdb /usr/bin/baloo_file
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Reading symbols from /usr/bin/baloo_file...Reading symbols from
/usr/lib/debug/.build-id/cc/6382b1b4146efbd90e5836d11546a4568d809d.debug...done.
done.
(gdb) set follow-fork-mode child
(gdb) run
Starting program: /usr/bin/baloo_file
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffec961700 (LWP 3073)]
org.kde.baloo: "/home/user"
[New Thread 0x7ffea7dfe700 (LWP 3074)]
Power state changed
[New process 3075]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
process 3075 is executing new program: /usr/bin/baloo_file_extractor
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffead9c700 (LWP 3076)]
[New Thread 0x7fffd79f0700 (LWP 3077)]
Thread 2.1 "baloo_file_extr" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7ffff7e528c0 (LWP 3075)]
KFileMetaData::OdfExtractor::extract (this=<optimized out>,
result=0x7fffffffd870) at
/build/kfilemetadata-kf5-l1YepB/kfilemetadata-kf5-5.23.0/src/extractors/odfextractor.cpp:133
133
/build/kfilemetadata-kf5-l1YepB/kfilemetadata-kf5-5.23.0/src/extractors/odfextractor.cpp:
No such file or directory.
(gdb) thread apply all bt
Thread 2.3 (Thread 0x7fffd79f0700 (LWP 3077)):
#0 0x00007ffff5625dcd in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007ffff428e39c in g_main_context_poll (priority=2147483647, n_fds=3,
fds=0x7fffd0003020, timeout=<optimized out>, context=0x7fffd0000990) at
/build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:4135
#2 g_main_context_iterate (context=context@entry=0x7fffd0000990,
block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at
/build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3835
#3 0x00007ffff428e4ac in g_main_context_iteration (context=0x7fffd0000990,
may_block=may_block@entry=1) at
/build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3901
#4 0x00007ffff5f411af in QEventDispatcherGlib::processEvents
(this=0x7fffd00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5 0x00007ffff5ee9e4a in QEventLoop::exec (this=this@entry=0x7fffd79efcd0,
flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6 0x00007ffff5d129e4 in QThread::exec (this=this@entry=0x7ffff7fd8d40
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
thread/qthread.cpp:500
#7 0x00007ffff7f65515 in QDBusConnectionManager::run (this=0x7ffff7fd8d40
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
qdbusconnection.cpp:189
#8 0x00007ffff5d17808 in QThreadPrivate::start (arg=0x7ffff7fd8d40 <(anonymous
namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
thread/qthread_unix.cpp:341
#9 0x00007ffff511b464 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007ffff562ee5d in clone () from /lib/x86_64-linux-gnu/libc.so.6
Thread 2.2 (Thread 0x7fffead9c700 (LWP 3076)):
#0 0x00007ffff5625dcd in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007ffff20c9382 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2 0x00007ffff20caff7 in xcb_wait_for_event () from
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#3 0x00007fffeccd4a89 in QXcbEventReader::run (this=0x664600) at
qxcbconnection.cpp:1325
#4 0x00007ffff5d17808 in QThreadPrivate::start (arg=0x664600) at
thread/qthread_unix.cpp:341
#5 0x00007ffff511b464 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#6 0x00007ffff562ee5d in clone () from /lib/x86_64-linux-gnu/libc.so.6
Thread 2.1 (Thread 0x7ffff7e528c0 (LWP 3075)):
#0 KFileMetaData::OdfExtractor::extract (this=<optimized out>,
result=0x7fffffffd870) at
/build/kfilemetadata-kf5-l1YepB/kfilemetadata-kf5-5.23.0/src/extractors/odfextractor.cpp:133
#1 0x0000000000408750 in Baloo::App::index (this=this@entry=0x7fffffffdfb0,
tr=0x6e8030, url=..., id=id@entry=306226873237544) at
/build/baloo-kf5-sHKQba/baloo-kf5-5.23.0/src/file/extractor/app.cpp:163
#2 0x0000000000408bfe in Baloo::App::processNextFile (this=0x7fffffffdfb0) at
/build/baloo-kf5-sHKQba/baloo-kf5-5.23.0/src/file/extractor/app.cpp:93
#3 0x00007ffff5f24ca6 in QtPrivate::QSlotObjectBase::call (a=0x7fffffffd9e0,
r=<optimized out>, this=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#4 QSingleShotTimer::timerEvent (this=0x79cf20) at kernel/qtimer.cpp:310
#5 0x00007ffff5f19523 in QObject::event (this=0x79cf20, e=<optimized out>) at
kernel/qobject.cpp:1278
#6 0x00007ffff6823afc in QApplicationPrivate::notify_helper (this=<optimized
out>, receiver=0x79cf20, e=0x7fffffffdca0) at kernel/qapplication.cpp:3804
#7 0x00007ffff6829036 in QApplication::notify (this=0x7fffffffdf80,
receiver=0x79cf20, e=0x7fffffffdca0) at kernel/qapplication.cpp:3561
#8 0x00007ffff5eec0f8 in QCoreApplication::notifyInternal2 (receiver=0x79cf20,
event=event@entry=0x7fffffffdca0) at kernel/qcoreapplication.cpp:1015
#9 0x00007ffff5f4009e in QCoreApplication::sendEvent (event=0x7fffffffdca0,
receiver=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:225
#10 QTimerInfoList::activateTimers (this=0x683e00) at
kernel/qtimerinfo_unix.cpp:637
#11 0x00007ffff5f40609 in timerSourceDispatch (source=<optimized out>) at
kernel/qeventdispatcher_glib.cpp:176
#12 idleTimerSourceDispatch (source=<optimized out>) at
kernel/qeventdispatcher_glib.cpp:223
#13 0x00007ffff428e1a7 in g_main_dispatch (context=0x7fffe40016f0) at
/build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3154
#14 g_main_context_dispatch (context=context@entry=0x7fffe40016f0) at
/build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3769
#15 0x00007ffff428e400 in g_main_context_iterate
(context=context@entry=0x7fffe40016f0, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at
/build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3840
#16 0x00007ffff428e4ac in g_main_context_iteration (context=0x7fffe40016f0,
may_block=may_block@entry=1) at
/build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3901
#17 0x00007ffff5f411af in QEventDispatcherGlib::processEvents (this=0x688c70,
flags=...) at kernel/qeventdispatcher_glib.cpp:417
#18 0x00007ffff5ee9e4a in QEventLoop::exec (this=this@entry=0x7fffffffdef0,
flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#19 0x00007ffff5ef250c in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1285
#20 0x00007ffff623381c in QGuiApplication::exec () at
kernel/qguiapplication.cpp:1607
#21 0x00007ffff6820ac5 in QApplication::exec () at kernel/qapplication.cpp:2979
#22 0x0000000000407bc5 in main (argc=1, argv=0x7fffffffe1a8) at
/build/baloo-kf5-sHKQba/baloo-kf5-5.23.0/src/file/extractor/main.cpp:57
It's obvious that baloo_file gets stuck on some file in my home directory ...
though I did not manage to find out which one, I do not have any odf files, at
least to my knowledge.
Is there some way to find out which file is the problematic one?
I think baloo_file should be implemeted in a way so that one file can not stop
the whole indexing. Is this a direction planned for the future?
Reproducible: Always
Steps to Reproduce:
1. run baloo_file
2. notice crash in dmesg: baloo_file_extr[3240]: segfault at 0 ip
00007ff512bb73d6 sp 00007ffe5cc07de0 error 4 in
kfilemetadata_odfextractor.so[7ff512bb4000+5000]
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