[Akonadi] [Bug 363741] akonadi server 16.04.2: crashing every few seconds

[Till Schäfer via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363741

--- Comment #24 from Till Schäfer  ---
still valid for 16.08.1

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[Akonadi] [Bug 363741] akonadi server 16.04.2: crashing every few seconds

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363741

k...@mail.orbitel.bg changed:

   What|Removed |Added

 CC||k...@mail.orbitel.bg

--- Comment #23 from k...@mail.orbitel.bg ---
Thanks Christian! 
I also just updated my Tumbleweed using your repo and the issue seems to be
gone.
I am crossing fingers in hope this nasty bug could be fixed till the next
Tumbleweed update.

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[Akonadi] [Bug 363741] akonadi server 16.04.2: crashing every few seconds

[Aitor via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363741

--- Comment #22 from Aitor  ---
Thanks Christian! Your I've just updated my Tumbleweed using your repo and the
issue seems to be gone.

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[Akonadi] [Bug 363741] akonadi server 16.04.2: crashing every few seconds

[Aitor via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363741

--- Comment #21 from Aitor  ---
More meaningful backtrace (with the missing debug symbols in the previous one)
of a following coredump:
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `akonadiserver'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  x86_64_fallback_frame_state (context=0x7fd71104c240,
context=0x7fd71104c240, fs=0x7fd71104c330) at ./md-unwind-support.h:58
58  ./md-unwind-support.h: No existe el fichero o el directorio.
[Current thread is 1 (Thread 0x7fd71104f700 (LWP 569))]
(gdb) bt
#0  0x7fd7198b921b in uw_frame_state_for (context=0x7fd71104c240,
context=0x7fd71104c240, fs=0x7fd71104c330) at ./md-unwind-support.h:58
#1  0x7fd7198b921b in uw_frame_state_for
(context=context@entry=0x7fd71104c240, fs=fs@entry=0x7fd71104c330) at
../../../libgcc/unwind-dw2.c:1249
#2  0x7fd7198babb8 in _Unwind_Backtrace (trace=0x7fd7195fd210
, trace_argument=0x7fd71104c4f0) at
../../../libgcc/unwind.inc:290
#3  0x7fd7195fd37f in __GI___backtrace (array=array@entry=0x7fd71104c5b0,
size=size@entry=256) at ../sysdeps/x86_64/backtrace.c:110
#4  0x00574fe6 in akBacktrace() () at
/usr/src/debug/akonadi-16.04.3/src/shared/akcrash.cpp:47
#5  0x00575300 in defaultCrashHandler(int) (sig=11) at
/usr/src/debug/akonadi-16.04.3/src/shared/akcrash.cpp:91
#6  0x7fd71953c9f0 in  () at /lib64/libc.so.6
#7  0x0020 in  ()
#8  0x7fd6d85445cb in ExternalPostList::ExternalPostList(Xapian::Database
const&, Xapian::PostingSource*, double, MultiMatch*) (this=0x7fd6f405c220,
db=..., source_=, factor_=,
matcher=0x7fd71104dba0) at matcher/externalpostlist.cc:40
#9  0x7fd6d8456730 in
Xapian::Internal::QueryPostingSource::postlist(QueryOptimiser*, double) const
(this=, qopt=0x7fd71104d4a0, factor=1) at
api/queryinternal.cc:739
#10 0x7fd6d8454c41 in
Xapian::Query::Internal::postlist_sub_or_like(Xapian::Internal::OrContext&,
QueryOptimiser*, double) const (this=, ctx=..., qopt=, factor=) at api/queryinternal.cc:626
#11 0x7fd6d8455f1c in
Xapian::Internal::QueryBranch::do_or_like(Xapian::Internal::OrContext&,
QueryOptimiser*, double, unsigned int, unsigned long) const
(this=this@entry=0x7fd6f4026070, ctx=..., qopt=qopt@entry=0x7fd71104d4a0,
factor=factor@entry=1, elite_set_size=elite_set_size@entry=0,
first=first@entry=1) at api/queryinternal.cc:1186
#12 0x7fd6d84564e1 in
Xapian::Internal::QueryAndMaybe::postlist(QueryOptimiser*, double) const
(this=0x7fd6f4026070, qopt=0x7fd71104d4a0, factor=1) at
api/queryinternal.cc:1550
#13 0x7fd6d854488a in LocalSubMatch::get_postlist(MultiMatch*, unsigned
int*) (this=0x7fd6f4047040, matcher=0x7fd71104dba0,
total_subqs_ptr=0x7fd71104d60c) at matcher/localsubmatch.cc:204
#14 0x7fd6d854abb6 in MultiMatch::get_mset(unsigned int, unsigned int,
unsigned int, Xapian::MSet&, Xapian::Weight::Internal&, Xapian::MatchDecider
const*, Xapian::KeyMaker const*) (this=this@entry=0x7fd71104dba0,
first=first@entry=0, maxitems=77512, check_at_least=check_at_least@entry=77512,
mset=..., stats=..., mdecider=0x0, sorter=0x0) at matcher/multimatch.cc:419
#15 0x7fd6d844430f in Xapian::Enquire::Internal::get_mset(unsigned int,
unsigned int, unsigned int, Xapian::RSet const*, Xapian::MatchDecider const*)
const (this=0x7fd6f40455e0, first=, maxitems=,
check_at_least=, check_at_least@entry=0, rset=rset@entry=0x0,
mdecider=0x0) at api/omenquire.cc:548
#16 0x7fd6d8444654 in Xapian::Enquire::get_mset(unsigned int, unsigned int,
unsigned int, Xapian::RSet const*, Xapian::MatchDecider const*) const
(this=this@entry=0x7fd71104dec0, first=, maxitems=, check_at_least=check_at_least@entry=0, rset=rset@entry=0x0, mdecider=0x0)
at api/omenquire.cc:906
#17 0x7fd6e81bc9bd in
Akonadi::Search::XapianSearchStore::exec(Akonadi::Search::Query const&)
(this=0x7fd6e00dc8f0, query=...) at
/usr/src/debug/akonadi-search-16.04.3/xapian/xapiansearchstore.cpp:177
#18 0x7fd7101b5cd1 in Akonadi::Search::Query::exec()
(this=this@entry=0x7fd71104e130) at
/usr/src/debug/akonadi-search-16.04.3/core/query.cpp:252
#19 0x7fd71064a57a in SearchPlugin::search(QString const&, QList
const&, QStringList const&) (this=, akonadiQuery=...,
collections=..., mimeTypes=...)
at /usr/src/debug/akonadi-search-16.04.3/akonadiplugin/searchplugin.cpp:348
#20 0x0055e0c7 in Akonadi::Server::SearchRequest::searchPlugins()
(this=this@entry=0x7fd71104e770) at
/usr/src/debug/akonadi-16.04.3/src/server/search/searchrequest.cpp:112
#21 0x0055e453 in Akonadi::Server::SearchRequest::exec()
(this=this@entry=0x7fd71104e770) at
/usr/src/debug/akonadi-16.04.3/src/server/search/searchrequest.cpp:123
#22 0x00449487 in
Akonadi::Server::SearchManager::updateSearchImpl(Akonadi::Server::Collection
const&, QSemaphore*) (this=0x15c34a0, collection=..., cond=)
at 

[Akonadi] [Bug 363741] akonadi server 16.04.2: crashing every few seconds

[Christian Boltz via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363741

--- Comment #20 from Christian Boltz  ---
(copy of my mail to opensuse-factory)

I created a repo with the previous version of libxapian, and akonadi-* 
and baloo linkpac'd from Factory (so rebuilt against the old libxapian):
   
https://build.opensuse.org/project/show/home:cboltz:branches:openSUSE:Factory
Packages at
   
http://download.opensuse.org/repositories/home:/cboltz:/branches:/openSUSE:/Factory/standard/

Since I installled these packages (using zypper dup --from), I didn't 
see any akonadi crashes.

If someone wants to use the fixed packages _now_: I'll keep the repo 
as long as it's useful for me ;-)


-> this is clearly caused by the libxapian update (libxapian22 -> libxapian30)


BTW: Aitor's backtrace looks like the other backtraces in this bugreport, but
without debuginfo packages installed. I've seen something similar before
installing the debuginfo packages.

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[Akonadi] [Bug 363741] akonadi server 16.04.2: crashing every few seconds

[Aitor via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363741

Aitor  changed:

   What|Removed |Added

 CC||m...@aitorpazos.es

--- Comment #19 from Aitor  ---
I'm seeing akonadiserver coredumping repeatedly as well on OpenSUSE Tumbleweed. 
$ coredumpctl list COREDUMP_COMM=akonadiserver
TIMEPID   UID   GID SIG PRESENT EXE
sáb 2016-08-20 17:08:31 IST   3345  1004  1004  11   /usr/bin/akonadiserver
sáb 2016-08-20 18:06:23 IST  11612  1004  1004  11   /usr/bin/akonadiserver
sáb 2016-08-20 19:48:13 IST   9044  1004  1004  11   /usr/bin/akonadiserver
sáb 2016-08-20 20:52:21 IST  11546  1004  1004  11   /usr/bin/akonadiserver
sáb 2016-08-20 20:56:26 IST  15596  1004  1004  11   /usr/bin/akonadiserver
sáb 2016-08-20 20:58:45 IST  17769  1004  1004  11   /usr/bin/akonadiserver
sáb 2016-08-20 21:04:58 IST  20943  1004  1004  11   /usr/bin/akonadiserver
sáb 2016-08-20 21:07:09 IST  21753  1004  1004  11   /usr/bin/akonadiserver
sáb 2016-08-20 21:08:31 IST  22413  1004  1004  11   /usr/bin/akonadiserver
sáb 2016-08-20 22:33:24 IST  10901  1004  1004  11   /usr/bin/akonadiserver
sáb 2016-08-20 22:38:27 IST  13131  1004  1004  11   /usr/bin/akonadiserver
sáb 2016-08-20 22:43:31 IST  14567  1004  1004  11   /usr/bin/akonadiserver
sáb 2016-08-20 22:54:25 IST  22114  1004  1004  11   /usr/bin/akonadiserver
sáb 2016-08-20 22:54:59 IST  23583  1004  1004  11   /usr/bin/akonadiserver
dom 2016-08-21 01:54:48 IST2790  1004  1004  11   /usr/bin/akonadiserver
dom 2016-08-21 01:57:24 IST3918  1004  1004  11   /usr/bin/akonadiserver
dom 2016-08-21 02:03:47 IST8106  1004  1004  11   /usr/bin/akonadiserver
dom 2016-08-21 02:06:56 IST9122  1004  1004  11   /usr/bin/akonadiserver
dom 2016-08-21 02:08:22 IST   11547  1004  1004  11   /usr/bin/akonadiserver
dom 2016-08-21 02:31:25 IST   19402  1004  1004  11   /usr/bin/akonadiserver
dom 2016-08-21 02:49:12 IST   23853  1004  1004  11   /usr/bin/akonadiserver
dom 2016-08-21 02:50:40 IST   24263  1004  1004  11   /usr/bin/akonadiserver
dom 2016-08-21 02:52:12 IST   24672  1004  1004  11   /usr/bin/akonadiserver
dom 2016-08-21 15:00:43 IST7764  1004  1004  11   /usr/bin/akonadiserver
dom 2016-08-21 15:06:37 IST   11212  1004  1004  11   /usr/bin/akonadiserver
dom 2016-08-21 15:07:09 IST   11870  1004  1004  11   /usr/bin/akonadiserver
dom 2016-08-21 15:11:17 IST   12143  1004  1004  11   /usr/bin/akonadiserver
dom 2016-08-21 15:25:41 IST   19825  1004  1004  11   /usr/bin/akonadiserver
dom 2016-08-21 15:29:20 IST   21604  1004  1004  11   /usr/bin/akonadiserver

All leaving the same backtrace:
$ coredumpctl gdb 11870
   PID: 11870 (akonadiserver)
   UID: 1004 (user)
   GID: 1004 (user)
Signal: 11 (SEGV)
 Timestamp: dom 2016-08-21 15:06:23 IST (14min ago)
  Command Line: akonadiserver
Executable: /usr/bin/akonadiserver
 Control Group: /
 Slice: -.slice
   Boot ID: 3c838f6cf33a4d4288cfef8de81c1a84
Machine ID: 0a280ef085a9a213e42acac8576af948
  Hostname: 
  Coredump:
/var/lib/systemd/coredump/core.akonadiserver.1004.3c838f6cf33a4d4288cfef8de81c1a84.11870.147178838300.xz
   Message: Process 11870 (akonadiserver) of user 1004 dumped core.

GNU gdb (GDB; openSUSE Tumbleweed) 7.11.1
[...]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `akonadiserver'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  x86_64_fallback_frame_state (context=0x7fe67caed240,
context=0x7fe67caed240, fs=0x7fe67caed330) at ./md-unwind-support.h:58
58  ./md-unwind-support.h: No existe el fichero o el directorio.
[Current thread is 1 (Thread 0x7fe67caf0700 (LWP 11884))]
Missing separate debuginfos, use: zypper install
akonadi-server-debuginfo-16.04.3-2.1.x86_64
(gdb) bt
#0  0x7fe68535a21b in uw_frame_state_for (context=0x7fe67caed240,
context=0x7fe67caed240, fs=0x7fe67caed330) at ./md-unwind-support.h:58
#1  0x7fe68535a21b in uw_frame_state_for
(context=context@entry=0x7fe67caed240, fs=fs@entry=0x7fe67caed330) at
../../../libgcc/unwind-dw2.c:1249
#2  0x7fe68535bbb8 in _Unwind_Backtrace (trace=0x7fe68509e210
, trace_argument=0x7fe67caed4f0) at
../../../libgcc/unwind.inc:290
#3  0x7fe68509e37f in __GI___backtrace (array=,
size=) at ../sysdeps/x86_64/backtrace.c:110
#4  0x00574fe6 in  ()
#5  0x00575300 in  ()
#6  0x7fe684fdd9f0 in  () at /lib64/libc.so.6
#7  0x0018 in  ()
#8  0x7fe6545445cb in  () at /usr/lib64/libxapian.so.30
#9  0x7fe654456730 in  () at /usr/lib64/libxapian.so.30
#10 0x7fe654454c41 in
Xapian::Query::Internal::postlist_sub_or_like(Xapian::Internal::OrContext&,
QueryOptimiser*, double) const () at /usr/lib64/libxapian.so.30
#11 0x7fe654455f1c in  () at /usr/lib64/libxapian.so.30
#12 0x7fe6544564e1 in  

[Akonadi] [Bug 363741] akonadi server 16.04.2: crashing every few seconds

[Ian via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363741

Ian  changed:

   What|Removed |Added

 CC||ianse...@yahoo.co.uk

--- Comment #18 from Ian  ---
i've got akonadi restarting itself when feels like as well and kmail2 also
crashes with seg fault 11 but i don;t know if they are related.  I've only had
this issue since kmail2 ver 5.3.0 was downloaded and installed.  i've logged it
here https://bugs.kde.org/show_bug.cgi?id=367632

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[Akonadi] [Bug 363741] akonadi server 16.04.2: crashing every few seconds

[Michal Hlavac via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363741

Michal Hlavac  changed:

   What|Removed |Added

 CC||hla...@hlavki.eu

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[Akonadi] [Bug 363741] akonadi server 16.04.2: crashing every few seconds

[Christian Boltz via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363741

Christian Boltz  changed:

   What|Removed |Added

 CC||kde-b...@cboltz.de

--- Comment #17 from Christian Boltz  ---
(In reply to Daniel Vrátil from comment #15)
> Please try removing content of ~/.local/share/akonadi/search_db and
> ~/.local/share/baloo/{calendars,collections,contacts,email,emailContacts,
> notes} (if if exists)

I hit this bug (on openSUSE Tumbleweed) and tried this (I moved
akonadi/search_db away and didn't have the mentioned baloo files because I have
most of baloo disabled).

After starting akonadi and kmail, unfortunately it only took a minute until
akonadi restarted itsself again :-(

Note: this started after Akonadi and Baloo were rebuilt against libxapian30
(xapian 1.4.0). With the previous libxapian22 (xapian 1.2.23), everything
worked without problems.

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[Akonadi] [Bug 363741] akonadi server 16.04.2: crashing every few seconds

[Till Schäfer via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363741

--- Comment #16 from Till Schäfer  ---
by why does a mysql schema drop/create helps in this case?

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[Akonadi] [Bug 363741] akonadi server 16.04.2: crashing every few seconds

[Daniel Vrátil via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363741

Daniel Vrátil  changed:

   What|Removed |Added

 Status|UNCONFIRMED |CONFIRMED
 CC||dvra...@kde.org
 Ever confirmed|0   |1

--- Comment #15 from Daniel Vrátil  ---
Please try removing content of ~/.local/share/akonadi/search_db and
~/.local/share/baloo/{calendars,collections,contacts,email,emailContacts,notes}
(if if exists)

This unfortunately is Xapian crashing on its own (probably corrupted) database,
something that is currently out of our control.

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[Akonadi] [Bug 363741] akonadi server 16.04.2: crashing every few seconds

[Sven Eden via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363741

Sven Eden  changed:

   What|Removed |Added

 CC||sven.e...@gmx.de

--- Comment #14 from Sven Eden  ---
I tried this and removed the search folder. After a restart of both akonadi and
kontact (I had gdb hooked to the akonadiserver process) and trying to do a
search, gdb caught a SIGSEGV with the following trace:


Thread 60 "QThread" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fd009ffb700 (LWP 17593)]
0x7fcfe854b9a8 in vtable for Xapian::Internal::QueryTerm () from
/usr/lib64/libxapian-1.3.so.8
(gdb) bt
#0  0x7fcfe854b9a8 in vtable for Xapian::Internal::QueryTerm () from
/usr/lib64/libxapian-1.3.so.8
#1  0x7fcfe82a301b in ExternalPostList::ExternalPostList
(this=0x7fcff009f1e0, db=..., source_=, 
factor_=, matcher=0x7fd009ff9d10) at
matcher/externalpostlist.cc:40
#2  0x7fcfe81b5d4b in Xapian::Internal::QueryPostingSource::postlist
(this=, qopt=0x7fd009ff9630, factor=1)
at api/queryinternal.cc:739
#3  0x7fcfe81b40b1 in Xapian::Query::Internal::postlist_sub_xor
(this=, ctx=..., qopt=, 
factor=) at api/queryinternal.cc:634
#4  0x7fcfe81b5533 in Xapian::Internal::QueryBranch::do_or_like
(this=this@entry=0x7fcff001bd60, ctx=..., 
qopt=qopt@entry=0x7fd009ff9630, factor=factor@entry=1,
elite_set_size=elite_set_size@entry=0, first=first@entry=1)
at api/queryinternal.cc:1186
#5  0x7fcfe81b5afa in Xapian::Internal::QueryAndMaybe::postlist
(this=0x7fcff001bd60, qopt=0x7fd009ff9630, factor=1)
at api/queryinternal.cc:1550
#6  0x7fcfe82a32da in LocalSubMatch::get_postlist (this=0x7fcff009a6c0,
matcher=0x7fd009ff9d10, total_subqs_ptr=0x7fd009ff979c)
at matcher/localsubmatch.cc:204
#7  0x7fcfe82a9741 in MultiMatch::get_mset (this=this@entry=0x7fd009ff9d10,
first=first@entry=0, maxitems=95894, 
check_at_least=check_at_least@entry=95894, mset=..., stats=...,
mdecider=0x0, sorter=0x0) at matcher/multimatch.cc:419
#8  0x7fcfe81a4641 in Xapian::Enquire::Internal::get_mset
(this=0x7fcff009a830, first=, 
maxitems=, check_at_least=,
check_at_least@entry=0, rset=rset@entry=0x0, mdecider=0x0)
at api/omenquire.cc:548
#9  0x7fcfe81a4984 in Xapian::Enquire::get_mset
(this=this@entry=0x7fd009ffa030, first=, 
maxitems=, check_at_least=check_at_least@entry=0,
rset=rset@entry=0x0, mdecider=0x0) at api/omenquire.cc:906
#10 0x7fcfe05e967d in Akonadi::Search::XapianSearchStore::exec
(this=0x7fcff003fe70, query=...)
at
/home/portage/kde-apps/akonadi-search-16.04.2/work/akonadi-search-16.04.2/xapian/xapiansearchstore.cpp:177
#11 0x7fd00919e2e5 in Akonadi::Search::Query::exec
(this=this@entry=0x7fd009ffa2a0)
at
/home/portage/kde-apps/akonadi-search-16.04.2/work/akonadi-search-16.04.2/core/query.cpp:252
#12 0x7fd0095f5f6d in SearchPlugin::search (this=,
akonadiQuery=..., collections=..., mimeTypes=...)
at
/home/portage/kde-apps/akonadi-search-16.04.2/work/akonadi-search-16.04.2/akonadiplugin/searchplugin.cpp:348
#13 0x0053ed1d in Akonadi::Server::SearchRequest::searchPlugins
(this=this@entry=0x7fd009ffa880)
at
/home/portage/kde-apps/akonadi-16.04.2/work/akonadi-16.04.2/src/server/search/searchrequest.cpp:112
#14 0x0053ef7f in Akonadi::Server::SearchRequest::exec
(this=this@entry=0x7fd009ffa880)
at
/home/portage/kde-apps/akonadi-16.04.2/work/akonadi-16.04.2/src/server/search/searchrequest.cpp:123
#15 0x00443944 in Akonadi::Server::SearchManager::updateSearchImpl
(this=, collection=..., 
cond=0x7fceeaffc4e0) at
/home/portage/kde-apps/akonadi-16.04.2/work/akonadi-16.04.2/src/server/search/searchmanager.cpp:350
#16 0x004fbea5 in Akonadi::Server::SearchManager::qt_static_metacall
(_o=, _c=, 
_id=, _a=)
at
/home/portage/kde-apps/akonadi-16.04.2/work/akonadi-16.04.2_build/src/server/moc_searchmanager.cpp:108
#17 0x7fd0165f8711 in QObject::event (this=0x27ac890, e=) at
kernel/qobject.cpp:1256
#18 0x7fd0165cfaaa in doNotify (receiver=, event=) at kernel/qcoreapplication.cpp:1090
#19 0x7fd0165cfbda in QCoreApplication::notifyInternal2
(receiver=0x27ac890, event=event@entry=0x7fceec0deef0)
at kernel/qcoreapplication.cpp:1015
#20 0x7fd0165d1c2a in QCoreApplication::sendEvent (event=0x7fceec0deef0,
receiver=)
at kernel/qcoreapplication.h:225
#21 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0,
event_type=event_type@entry=0, data=0x27ab840)
at kernel/qcoreapplication.cpp:1650
#22 0x7fd0165d20e8 in QCoreApplication::sendPostedEvents
(receiver=receiver@entry=0x0, event_type=event_type@entry=0)
at kernel/qcoreapplication.cpp:1508
#23 0x7fd01661ec13 in postEventSourceDispatch (s=0x7fcff00012d0) at
kernel/qeventdispatcher_glib.cpp:270
#24 0x7fd013da07f7 in g_main_dispatch 

[Akonadi] [Bug 363741] akonadi server 16.04.2: crashing every few seconds

[Jan-Matthias Braun via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363741

--- Comment #13 from Jan-Matthias Braun  ---
it looks like my problem is somehow related to akonadi/kmail producing and not
coping with invalid xapian searches.

Right now, I have not seen another akonadi crash. The search that was crashing
akonadi had a debug output representation (using the qdebug overload of
operator << on term()) over half a screen, i.e., many lines with many many
columns. I have no Idea where it came from -- and now it is gone.

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[Akonadi] [Bug 363741] akonadi server 16.04.2: crashing every few seconds

[Jan-Matthias Braun via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363741

--- Comment #12 from Jan-Matthias Braun  ---
Okay, I was able to remove a very reproducible crash (with the above mentioned
segfault) during startup of akonadi (without any client running) by removing a
search from the search folder in kmail. Since then, it is running for at least
eight minutes (!) now and I haven't seen a SEGV up to now.

By the way, is it normal, that different searches have the same name? In the
logs I am seeing the
Executing search "foo-1186278907-bar"
lines. And the crashing search had the same name, as the search running before,
which was much, much simpler. And checking now I see, that different searches
often have the same search name in the logs, although from time to time the
name seems to change.

Revisiting older logs, the crash always happend with a reused search-name. But
I cannot tell if it was the same search, always, because only now I went to
instrument the code around the backtrace end in the akonadi-search code
(xapian/xapiansearchstore.cpp:177) with lots of output.

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[Akonadi] [Bug 363741] akonadi server 16.04.2: crashing every few seconds

[Till Schäfer via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363741

Till Schäfer  changed:

   What|Removed |Added

Summary|akonadi server 16.04.1: |akonadi server 16.04.2:
   |crashing every few seconds  |crashing every few seconds

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