https://bugs.kde.org/show_bug.cgi?id=520640
Bug ID: 520640
Summary: thumbnail.cpp crash because fontconfig XML value?
Classification: Frameworks and Libraries
Product: frameworks-kio
Version First 6.26.0
Reported In:
Platform: Arch Linux
OS: Linux
Status: REPORTED
Keywords: drkonqi
Severity: crash
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: ---
Application: kioworker (6.26.0)
ApplicationNotResponding [ANR]: false
Qt Version: 6.11.1
Frameworks Version: 6.26.0
Operating System: Linux 7.0.10-arch1-1 x86_64
Windowing System: X11
Distribution: "Arch Linux"
DrKonqi: 6.6.5 [CoredumpBackend]
-- Information about the crash:
VT1 -> getty login -> exec startplasma-wayland
Why thumbnail crash because some fontconfig XML values?
The reporter is unsure if this crash is reproducible.
-- Backtrace:
Application: kioworker (kioworker), signal: Segmentation fault
Content of s_kcrashErrorMessage: std::unique_ptr<char []> = {get() = <optimized
out>}
Downloading 719.62 K separate debug info for /usr/lib/kf6/kioworker...
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[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
Core was generated by `/usr/lib/kf6/kioworker
/usr/lib/qt6/plugins/kf6/kio/thumbnail.so thumbnail ''
local:/run/user/1000/plasmashellekXbUL.16.kioworker.socket'.
Program terminated with signal SIGSEGV, Segmentation fault.
Downloading 4.48 K source file
/usr/src/debug/glibc/glibc/nptl/pthread_kill.c...
#0 __pthread_kill_implementation (threadid=<optimized out>,
signo=signo@entry=11, no_tid=no_tid@entry=0) at pthread_kill.c:44
44 return INTERNAL_SYSCALL_ERROR_P (ret) ? INTERNAL_SYSCALL_ERRNO
(ret) : 0;
[Current thread is 1 (Thread 0x7eff02e8db00 (LWP 19801))]
Using eu-unstrip to resolve modules.
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[Current thread is 2 (Thread 0x7efefe7836c0 (LWP 19807))]
Thread 2 (Thread 0x7efefe7836c0 (LWP 19807)):
#0 __syscall_cancel_arch () at
../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1 0x00007eff08094abc in __internal_syscall_cancel (a1=<optimized out>,
a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=a5@entry=8,
a6=a6@entry=0, nr=271) at cancellation.c:49
#2 0x00007eff08094b04 in __syscall_cancel (a1=<optimized out>, a2=<optimized
out>, a3=<optimized out>, a4=<optimized out>, a5=a5@entry=8, a6=a6@entry=0,
nr=271) at cancellation.c:75
#3 0x00007eff0810fff6 in __GI_ppoll (fds=fds@entry=0x7efef8001620,
nfds=nfds@entry=2, timeout=<optimized out>, timeout@entry=0x0,
sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:42
#4 0x00007eff07500edf in ppoll (__fds=0x7efef8001620, __nfds=2, __timeout=0x0,
__ss=0x0) at /usr/include/bits/poll2.h:101
#5 g_main_context_poll_unlocked (priority=<optimized out>,
context=0x7efef8000ca0, timeout_usec=<optimized out>, fds=0x7efef8001620,
n_fds=2) at ../glib/glib/gmain.c:4837
#6 g_main_context_iterate_unlocked (context=context@entry=0x7efef8000ca0,
block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at
../glib/glib/gmain.c:4511
#7 0x00007eff07500fe5 in g_main_context_iteration (context=0x7efef8000ca0,
may_block=1) at ../glib/glib/gmain.c:4582
#8 0x00007eff0889d0b2 in QEventDispatcherGlib::processEvents
(this=0x7efef8000880, flags=...) at
/usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:402
#9 0x00007eff08591983 in QEventLoop::processEvents (this=0x7efefe782920,
flags=...) at
/usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qeventloop.cpp:109
#10 QEventLoop::exec (this=0x7efefe782920, flags=...) at
/usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qeventloop.cpp:198
#11 0x00007eff086b9342 in QThread::exec (this=this@entry=0x7eff082fae20
<QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS__q_manager>
>::instance()::holder>) at
/usr/src/debug/qt6-base/qtbase/src/corelib/thread/qthread.cpp:672
#12 0x00007eff082687d1 in QDBusConnectionManager::run (this=0x7eff082fae20
<QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS__q_manager>
>::instance()::holder>) at
/usr/src/debug/qt6-base/qtbase/src/dbus/qdbusconnectionmanager.cpp:145
#13 0x00007eff087784fb in QThreadPrivate::start (arg=0x7eff082fae20
<QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS__q_manager>
>::instance()::holder>) at
/usr/src/debug/qt6-base/qtbase/src/corelib/thread/qthread_unix.cpp:466
#14 0x00007eff080981b9 in start_thread (arg=<optimized out>) at
pthread_create.c:454
#15 0x00007eff0811d21c in __GI___clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:78
Thread 1 (Thread 0x7eff02e8db00 (LWP 19801)):
[KCrash Handler]
#5 0x00007eff08c4c048 in std::__atomic_base<bool>::store
(this=0x666e6f632e7361f2, __i=true, __m=std::memory_order::seq_cst) at
/usr/include/c++/16.1.1/bits/atomic_base.h:494
#6 std::__atomic_base<bool>::operator= (this=0x666e6f632e7361f2, __i=true) at
/usr/include/c++/16.1.1/bits/atomic_base.h:386
#7 std::atomic<bool>::operator= (this=0x666e6f632e7361f2, __i=true) at
/usr/include/c++/16.1.1/atomic:90
#8 KIO::SlaveBase::setKillFlag (this=0x557a56280c00) at
/usr/src/debug/kio/kio-6.26.0/src/core/slavebase.cpp:1423
#9 genericsig_handler (sigNumber=<optimized out>) at
/usr/src/debug/kio/kio-6.26.0/src/core/slavebase.cpp:234
#10 0x00007eff0803e8f0 in <signal handler called> () at /usr/lib/libc.so.6
#11 _int_malloc (av=av@entry=0x7eff08213ac0 <main_arena>,
bytes=bytes@entry=385) at malloc.c:4208
#12 0x00007eff080a81aa in _int_realloc (av=av@entry=0x7eff08213ac0
<main_arena>, oldp=oldp@entry=0x557a55c6f980, oldsize=208, nb=400) at
malloc.c:4620
#13 0x00007eff080a93fe in __GI___libc_realloc (oldmem=0x557a55c6f990,
bytes=bytes@entry=384) at malloc.c:3480
#14 0x00007eff039ef3e9 in FcStrBufChar (buf=0x7ffd19d855f0, c=112 'p') at
../fontconfig/src/fcstr.c:866
#15 FcStrBufData (buf=<optimized out>, s=0x7ffd19d85751
"refer>\n\t\t\t<family>Artsounk</family> <!-- armenian -->\n\t\t\t<family>BPG
UTF8 M</family> <!-- georgian -->\n\t\t\t<family>Kinnari</family> <!-- thai
-->\n\t\t\t<family>Norasi</family> <!-- thai -->\n\t\t\t<family>Fra"...,
len=<optimized out>) at ../fontconfig/src/fcstr.c:900
#16 _FcConfigParse (config=config@entry=0x557a55cb57e0, name=0x557a5625d9c0
"/etc/fonts/conf.d/65-nonlatin.conf", complain=complain@entry=0,
load=load@entry=1) at ../fontconfig/src/fcxml.c:3329
#17 0x00007eff039ef773 in FcConfigParseAndLoadDir (config=0x557a55cb57e0,
name=<optimized out>, dir=0x557a55e490b0 "/etc/fonts/conf.d",
complain=<optimized out>, load=<optimized out>) at
../fontconfig/src/fcxml.c:3115
#18 _FcConfigParse (config=0x557a55cb57e0, name=<optimized out>,
complain=<optimized out>, load=<optimized out>) at
../fontconfig/src/fcxml.c:3294
#19 0x00007eff039eb25d in FcParseInclude (parse=0x7ffd19d8fd50) at
../fontconfig/src/fcxml.c:2373
#20 FcEndElement (userData=0x7ffd19d8fd50, name=<optimized out>) at
../fontconfig/src/fcxml.c:2831
#21 0x00007eff032e205a in doContent (parser=parser@entry=0x557a56272cc8,
startTagLevel=0, enc=<optimized out>, s=s@entry=0x557a56255b22
"<fontconfig>\n\t<description>Default configuration
file</description>\n\n<!--\n\tDO NOT EDIT THIS FILE.\n\tIT WILL BE REPLACED
WHEN FONTCONFIG IS UPDATED.\n\tLOCAL CHANGES BELONG IN 'local.conf'.\n\n\tThe
intent o"..., end=end@entry=0x557a5625651c "zU",
nextPtr=nextPtr@entry=0x557a56272cf8, haveMore=1 '\001',
account=XML_ACCOUNT_DIRECT) at
/usr/src/debug/expat/expat/expat/lib/xmlparse.c:3542
#22 0x00007eff032e3065 in contentProcessor (parser=parser@entry=0x557a56272cc8,
start=start@entry=0x557a56255b22 "<fontconfig>\n\t<description>Default
configuration file</description>\n\n<!--\n\tDO NOT EDIT THIS FILE.\n\tIT WILL
BE REPLACED WHEN FONTCONFIG IS UPDATED.\n\tLOCAL CHANGES BELONG IN
'local.conf'.\n\n\tThe intent o"..., end=end@entry=0x557a5625651c "zU",
endPtr=endPtr@entry=0x557a56272cf8) at
/usr/src/debug/expat/expat/expat/lib/xmlparse.c:3098
#23 0x00007eff032e3fc1 in doProlog (parser=parser@entry=0x557a56272cc8,
enc=<optimized out>, s=0x557a56255b22 "<fontconfig>\n\t<description>Default
configuration file</description>\n\n<!--\n\tDO NOT EDIT THIS FILE.\n\tIT WILL
BE REPLACED WHEN FONTCONFIG IS UPDATED.\n\tLOCAL CHANGES BELONG IN
'local.conf'.\n\n\tThe intent o"..., s@entry=0x557a56255a90 "<?xml
version=\"1.0\"?>\n<!DOCTYPE fontconfig SYSTEM
\"urn:fontconfig:fonts.dtd\">\n<!-- /etc/fonts/fonts.conf file to configure
system font access -->\n<fontconfig>\n\t<description>Default configuration
file<"..., end=end@entry=0x557a5625651c "zU", tok=<optimized out>,
next=<optimized out>, nextPtr=0x557a56272cf8, haveMore=1 '\001',
allowClosingDoctype=1 '\001', account=XML_ACCOUNT_DIRECT) at
/usr/src/debug/expat/expat/expat/lib/xmlparse.c:5416
#24 0x00007eff032e66bf in prologProcessor (parser=0x557a56272cc8,
s=0x557a56255a90 "<?xml version=\"1.0\"?>\n<!DOCTYPE fontconfig SYSTEM
\"urn:fontconfig:fonts.dtd\">\n<!-- /etc/fonts/fonts.conf file to configure
system font access -->\n<fontconfig>\n\t<description>Default configuration
file<"..., end=0x557a5625651c "zU", nextPtr=0x557a56272cf8) at
/usr/src/debug/expat/expat/expat/lib/xmlparse.c:5119
#25 0x00007eff032d86bf in callProcessor (parser=parser@entry=0x557a56272cc8,
start=0x557a56255a90 "<?xml version=\"1.0\"?>\n<!DOCTYPE fontconfig SYSTEM
\"urn:fontconfig:fonts.dtd\">\n<!-- /etc/fonts/fonts.conf file to configure
system font access -->\n<fontconfig>\n\t<description>Default configuration
file<"..., end=0x557a5625651c "zU", endPtr=endPtr@entry=0x557a56272cf8) at
/usr/src/debug/expat/expat/expat/lib/xmlparse.c:1168
#26 0x00007eff032de060 in XML_ParseBuffer (parser=0xa8c, len=2700, isFinal=0)
at /usr/src/debug/expat/expat/expat/lib/xmlparse.c:2413
#27 XML_ParseBuffer (parser=parser@entry=0x557a56272cc8, len=len@entry=2700,
isFinal=isFinal@entry=0) at
/usr/src/debug/expat/expat/expat/lib/xmlparse.c:2371
#28 0x00007eff039eea03 in FcConfigParseAndLoadFromMemoryInternal
(config=config@entry=0x557a55cb57e0, filename=filename@entry=0x557a56283170
"/etc/fonts/fonts.conf", buffer=<optimized out>, complain=complain@entry=1,
load=load@entry=1) at ../fontconfig/src/fcxml.c:3209
#29 0x00007eff039ef6f3 in _FcConfigParse (config=0x557a55cb57e0, name=0x0,
complain=1, load=1) at ../fontconfig/src/fcxml.c:3333
#30 0x00007eff039dbf24 in IA__FcConfigParseAndLoad (config=0x557a55cb57e0,
name=0x0, complain=1) at ../fontconfig/src/fcxml.c:3371
#31 FcInitLoadOwnConfig (config=0x557a55cb57e0) at
../fontconfig/src/fcinit.c:111
#32 0x00007eff039c9971 in FcInitLoadOwnConfigAndFonts (config=0x0) at
../fontconfig/src/fcinit.c:185
#33 IA__FcInitLoadConfigAndFonts () at ../fontconfig/src/fcinit.c:198
#34 FcConfigEnsure () at ../fontconfig/src/fccfg.c:95
#35 0x00007eff064ef0a0 in QFontconfigDatabase::~QFontconfigDatabase
(this=0x557a55c584c0, this=<optimized out>) at
/usr/src/debug/qt6-base/qtbase/src/gui/text/unix/qfontconfigdatabase.cpp:604
#36 QFontconfigDatabase::~QFontconfigDatabase (this=0x557a55c584c0,
this=<optimized out>) at
/usr/src/debug/qt6-base/qtbase/src/gui/text/unix/qfontconfigdatabase.cpp:605
#37 0x00007eff02e8285f in QOffscreenX11Integration::~QOffscreenX11Integration
(this=0x557a55c57260, this=<optimized out>) at
/usr/src/debug/qt6-base/qtbase/src/plugins/platforms/offscreen/qoffscreenintegration_x11.cpp:49
#38 QOffscreenX11Integration::~QOffscreenX11Integration (this=0x557a55c57260,
this=<optimized out>) at
/usr/src/debug/qt6-base/qtbase/src/plugins/platforms/offscreen/qoffscreenintegration_x11.cpp:49
#39 0x00007eff05fafa3e in QGuiApplicationPrivate::~QGuiApplicationPrivate
(this=0x557a55c4c690, this=<optimized out>) at
/usr/src/debug/qt6-base/qtbase/src/gui/kernel/qguiapplication.cpp:1861
#40 0x00007eff020f58c5 in QApplicationPrivate::~QApplicationPrivate
(this=0x557a55c4c690, this=<optimized out>) at
/usr/src/debug/qt6-base/qtbase/src/widgets/kernel/qapplication.cpp:149
#41 0x00007eff08d7fac7 in kdemain (argc=<optimized out>, argv=<optimized out>)
at /usr/src/debug/kio-extras/kio-extras-26.04.1/thumbnail/thumbnail.cpp:210
#42 0x0000557a3fef2240 in main (argc=<optimized out>, argv=0x7ffd19d97188) at
/usr/include/qt6/QtCore/qvarlengtharray.h:91
Reported using DrKonqi
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