```
(gdb) bt full
#0  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44
        tid = <optimized out>
        ret = 0
        pd = <optimized out>
        old_mask = {__val = {0}}
        ret = <optimized out>
#1  0x00007f4987a9b453 in __pthread_kill_internal (threadid=<optimized out>, signo=6) at pthread_kill.c:89
#2  0x00007f4987a41cb6 in __GI_raise (sig=6) at ../sysdeps/posix/raise.c:26
        ret = <optimized out>
#3  0x00007f498b007a37 in KCrash::defaultCrashHandler (sig=6) at /usr/src/debug/kcrash-6.12.0/src/kcrash.cpp:605
        data = {<KCrash::MetadataWriter> = {_vptr.MetadataWriter = 0x7f498b00e840 <vtable for KCrash::Metadata+16>}, argv = {_M_elems = {0x0, 0x7f498b00c342 "--qtversion", 0x563684612f80 "6.9.0", 0x7f498b00c355 "--kdeframeworksversion", 0x7f498b00c34e "6.12.0", 0x7f498b00c38d "--platform", 0x5636870e69a0 "wayland", 0x7f498b00c3be "--appname", 0x56368461cf50 "plasmashell", 0x7f498b00c3c8 "--apppath", 0x56368461d4f0 "/usr/bin", 0x7f498b00c3d5 "--signal", 0x7fffbba58506 "6", 0x7f498b00c3e3 "--pid", 0x7fffbba58510 "2831", 0x7f498b00c3e9 "--appversion", 0x563684620ef0 "6.3.4", 0x7f498b00c3f6 "--programname", 0x563678b037b8 <QByteArray::_empty> "", 0x7f498b00c404 "--bugaddress", 0x563684626650 "submit@bugs.kde.org", 0x0 <repeats 17 times>}}, argc = 21, m_writer = 0x7fffbba584b0}
        platformName = {d = {d = 0x5636870e6990, ptr = 0x5636870e69a0 "wayland", size = 7}}
        about = 0x56368461d330
        argv = 0x7fffbba58538
        ini = {<KCrash::MetadataWriter> = {_vptr.MetadataWriter = 0x7f498b00e870 <vtable for KCrash::MetadataINIWriter+16>}, writable = false, fd = 87}
        sigtxt = "6\000\376\376\376\376\376\376\376\376"
        pidtxt = "2831\000", '\376' <repeats 15 times>
        argc = <optimized out>
        crashRecursionCounter = 2
#4  0x00007f4987a41e00 in <signal handler called> () at /lib64/libc.so.6
#5  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44
        tid = <optimized out>
        ret = 0
        pd = <optimized out>
        old_mask = {__val = {18374403900871474942}}
        ret = <optimized out>
#6  0x00007f4987a9b453 in __pthread_kill_internal (threadid=<optimized out>, signo=6) at pthread_kill.c:89
#7  0x00007f4987a41cb6 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
        ret = <optimized out>
#8  0x00007f4987a2938b in __GI_abort () at abort.c:73
        act = {__sigaction_handler = {sa_handler = 0xfefefefefefefefe, sa_sigaction = 0xfefefefefefefefe}, sa_mask = {__val = {18374403900871474942, 18374403900871474942, 18374403900871474942, 18374403900871474942, 18374403900871474942, 18374403900871474942, 7381098296223866368, 18374403900871474942, 140736341578800, 140736341579024, 139953794700872, 18374403900871474942, 140736341579344, 140736341578800, 139953794722348, 93}}, sa_flags = 782900736, sa_restorer = 0x7f48d59e7000}
#9  0x00007f4987a2a199 in __libc_message_impl (fmt=fmt@entry=0x7f4987bba33f "%s\n") at ../sysdeps/posix/libc_fatal.c:134
        ap = {{gp_offset = 16, fp_offset = 1718545867, overflow_arg_area = 0x7fffbba594f0, reg_save_area = 0x7fffbba59480}}
        fd = 2
        iov = {{iov_base = 0x7f4987bbd438, iov_len = 54}, {iov_base = 0x7f4987bba341, iov_len = 1}, {iov_base = 0x5636888e2e50, iov_len = 140736341578920}, {iov_base = 0x7fffbba595e8, iov_len = 139953795907177}, {iov_base = 0x563683fef090, iov_len = 139953796386718}, {iov_base = 0x100000009fff, iov_len = 18374403900871474942}, {iov_base = 0x3e800000001, iov_len = 142932216643684}}
        iovcnt = <optimized out>
        total = <optimized out>
        cp = <optimized out>
#10 0x00007f4987aa5cc7 in malloc_printerr (str=str@entry=0x7f4987bbd438 "malloc_consolidate(): unaligned fastbin chunk detected") at malloc.c:5829
#11 0x00007f4987aa6a7c in malloc_consolidate (av=av@entry=0x7f4987bf6ac0 <main_arena>) at malloc.c:4903
        idx = <optimized out>
        fb = 0x7f4987bf6ad8 <main_arena+24>
        maxfb = 0x7f4987bf6b18 <main_arena+88>
        p = 0x563689f75573
        nextp = <optimized out>
        unsorted_bin = 0x7f4987bf6b20 <main_arena+96>
        first_unsorted = <optimized out>
        nextchunk = <optimized out>
        size = <optimized out>
        nextsize = <optimized out>
        prevsize = <optimized out>
        nextinuse = <optimized out>
#12 0x00007f4987aa9398 in _int_malloc (av=av@entry=0x7f4987bf6ac0 <main_arena>, bytes=bytes@entry=8192) at malloc.c:4099
        nb = <optimized out>
        idx = 107
        bin = <optimized out>
        victim = <optimized out>
        size = <optimized out>
        victim_index = <optimized out>
        remainder = <optimized out>
        remainder_size = <optimized out>
        block = <optimized out>
        bit = <optimized out>
        map = <optimized out>
        fwd = <optimized out>
        bck = <optimized out>
        tcache_unsorted_count = <optimized out>
        tcache_nb = <optimized out>
        tc_idx = <optimized out>
        return_cached = <optimized out>
        __PRETTY_FUNCTION__ = "_int_malloc"
#13 0x00007f4987aaa82e in __GI___libc_malloc (bytes=8192) at malloc.c:3414
        ar_ptr = 0x7f4987bf6ac0 <main_arena>
        victim = <optimized out>
        err = <optimized out>
        __PRETTY_FUNCTION__ = "__libc_malloc"
#14 0x00007f49884c5f98 in allocateData (allocSize=<optimized out>) at /usr/src/debug/qtbase-everywhere-src-6.9.0/src/corelib/tools/qarraydata.cpp:139
        header = <optimized out>
#15 allocateHelper (objectSize=1, alignment=16, capacity=8174, option=<optimized out>) at /usr/src/debug/qtbase-everywhere-src-6.9.0/src/corelib/tools/qarraydata.cpp:181
        headerSize = 16
        data = <optimized out>
        headerAlignment = 16
        blockSize = {size = <optimized out>, elementCount = 8174}
        allocSize = <optimized out>
        header = <optimized out>
        headerSize = <optimized out>
        headerAlignment = <optimized out>
        blockSize = {size = <optimized out>, elementCount = <optimized out>}
        allocSize = <optimized out>
        header = <optimized out>
        data = <optimized out>
#16 allocateHelper (objectSize=1, alignment=16, capacity=<optimized out>, option=<optimized out>) at /usr/src/debug/qtbase-everywhere-src-6.9.0/src/corelib/tools/qarraydata.cpp:157
        headerSize = <optimized out>
        data = <optimized out>
        headerAlignment = <optimized out>
        blockSize = {size = <optimized out>, elementCount = <optimized out>}
        allocSize = <optimized out>
        header = <optimized out>
        headerSize = <optimized out>
        headerAlignment = <optimized out>
        blockSize = {size = <optimized out>, elementCount = <optimized out>}
        allocSize = <optimized out>
        header = <optimized out>
        data = <optimized out>
#17 QArrayData::allocate1 (dptr=0x7fffbba59630, capacity=<optimized out>, option=<optimized out>) at /usr/src/debug/qtbase-everywhere-src-6.9.0/src/corelib/tools/qarraydata.cpp:211
        r = {data = <optimized out>, header = <optimized out>}
#18 0x00007f498845aa69 in QTypedArrayData<char>::allocate (capacity=0, option=QArrayData::Grow) at /usr/src/debug/qtbase-everywhere-src-6.9.0/src/corelib/tools/qarraydata.h:129
        d = 0xfefefefefefefefe
        result = <optimized out>
        d = <optimized out>
        result = <optimized out>
#19 QArrayDataPointer<char>::QArrayDataPointer (this=0x7fffbba59630, alloc=0, n=<optimized out>, option=QArrayData::Grow, this=<optimized out>, alloc=<optimized out>, n=<optimized out>, option=<optimized out>)
    at /usr/src/debug/qtbase-everywhere-src-6.9.0/src/corelib/tools/qarraydatapointer.h:58
#20 QByteArray::reallocData (this=this@entry=0x7fffbba597e0, alloc=alloc@entry=6969, option=option@entry=QArrayData::Grow) at /usr/src/debug/qtbase-everywhere-src-6.9.0/src/corelib/text/qbytearray.cpp:1983
        dd = {d = 0xfefefefefefefefe, ptr = 0x7f498837e6d0 <QFSFileEngine::size() const+96> "\211\3021\300\204\322t\004H\213CxH\213T$\030dH+\024%(", size = 94792220481616}
        cannotUseReallocate = <optimized out>
#21 0x00007f498845ac4a in QByteArray::resize (this=0x7fffbba597e0, size=6969) at /usr/src/debug/qtbase-everywhere-src-6.9.0/src/corelib/text/qbytearray.cpp:1907
        capacityAtEnd = <optimized out>
#22 0x00007f4988387ea1 in QIODevice::readAll (this=this@entry=0x7fffbba59780) at /usr/src/debug/qtbase-everywhere-src-6.9.0/src/corelib/io/qiodevice.cpp:1269
        d = 0x563688a11850
        result = {d = {d = 0x0, ptr = 0x0, size = 0}, static _empty = 0 '\000'}
        readBytes = 6969
#23 0x00007f4989588192 in KConfigIniBackend::parseConfig (this=<optimized out>, currentLocale=..., entryMap=..., options=..., merging=false) at /usr/src/debug/kconfig-6.12.0/src/core/kconfigini.cpp:83
        next_line = <optimized out>
        file = {<QFileDevice> = {<QIODevice> = {<QObject> = {_vptr.QObject = 0x7f498884e720 <vtable for QFile+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7f49886b6510 <_ZN7QObject32qt_staticMetaObjectStaticContentIN12_GLOBAL__N_125qt_meta_tag_ZN7QObjectE_tEEE.lto_priv.0+272>, data = 0x7f49886b6400 <_ZN7QObject32qt_staticMetaObjectStaticContentIN12_GLOBAL__N_125qt_meta_tag_ZN7QObjectE_tEEE.lto_priv.0>, static_metacall = 0x7f4988411fc0 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x7f498884d9e0 <_ZN7QObject36qt_staticMetaObjectRelocatingContentIN12_GLOBAL__N_125qt_meta_tag_ZN7QObjectE_tEEE.lto_priv.0>, extradata = 0x0}}, d_ptr = {d = 0x563688a11850}}, <QIODeviceBase> = {<No data fields>}, static staticMetaObject = {d = {superdata = {direct = 0x563678b03540 <QObject::staticMetaObject>}, stringdata = 0x7f49886b6104 <_ZN9QIODevice32qt_staticMetaObjectStaticContentIN12_GLOBAL__N_127qt_meta_tag_ZN9QIODeviceE_tEEE.lto_priv.0+260>, data = 0x7f49886b6000 <_ZN9QIODevice32qt_staticMetaObjectStaticContentIN12_GLOBAL__N_127qt_meta_tag_ZN9QIODeviceE_tEEE.lto_priv.0>, static_metacall = 0x7f4988385110 <QIODevice::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x7f498884d800 <_ZN9QIODevice36qt_staticMetaObjectRelocatingContentIN12_GLOBAL__N_127qt_meta_tag_ZN9QIODeviceE_tEEE.lto_priv.0>, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x7f498884d860 <QIODevice::staticMetaObject>}, stringdata = 0x7f49886b187c <_ZN11QFileDevice32qt_staticMetaObjectStaticContentIN12_GLOBAL__N_130qt_meta_tag_ZN11QFileDeviceE_tEEE.lto_priv.0+60>, data = 0x7f49886b1840 <_ZN11QFileDevice32qt_staticMetaObjectStaticContentIN12_GLOBAL__N_130qt_meta_tag_ZN11QFileDeviceE_tEEE.lto_priv.0>, static_metacall = 0x7f498836fe60 <QFileDevice::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x7f4988847d98 <_ZN11QFileDevice36qt_staticMetaObjectRelocatingContentIN12_GLOBAL__N_130qt_meta_tag_ZN11QFileDeviceE_tEEE.lto_priv.0>, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x7f498884c1a0 <QFileDevice::staticMetaObject>}, stringdata = 0x7f49886b06fc <_ZN5QFile32qt_staticMetaObjectStaticContentIN12_GLOBAL__N_123qt_meta_tag_ZN5QFileE_tEEE.lto_priv.0+60>, data = 0x7f49886b06c0 <_ZN5QFile32qt_staticMetaObjectStaticContentIN12_GLOBAL__N_123qt_meta_tag_ZN5QFileE_tEEE.lto_priv.0>, static_metacall = 0x7f498836fdd0 <QFile::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x7f4988847bd8 <_ZN5QFile36qt_staticMetaObjectRelocatingContentIN12_GLOBAL__N_123qt_meta_tag_ZN5QFileE_tEEE.lto_priv.0>, extradata = 0x0}}}
        immutableGroups = {<QListSpecialMethods<QString>> = {<QListSpecialMethodsBase<QString>> = {<No data fields>}, <No data fields>}, d = {d = 0x0, ptr = 0x0, size = 0}}
        fileOptionImmutable = false
        groupOptionImmutable = false
        groupSkip = false
        lineNo = 0
        buffer = {d = {d = 0x0, ptr = 0x0, size = 0}, static _empty = 0 '\000'}
        contents = {m_size = <optimized out>, m_data = <optimized out>}
        langIdx = <optimized out>
        currentLanguage = {d = {d = 0x7fffbba59860, ptr = 0x56368a1c3648 "\200t\023\2126V", size = 140736341579792}, static _empty = 0 '\000'}
        currentGroup = {d = {d = 0x56368a5e6800, ptr = 0x56368a5e6868 u"", size = 94792249665536}, static _empty = 0 u'\000'}
        bDefault = <optimized out>
        allowExecutableValues = <optimized out>
        cache = {d = 0xef60000}
#24 0x00007f498957b22f in KConfigIniBackend::parseConfig (this=0x563688ab5e60, currentLocale=..., entryMap=..., options=...) at /usr/src/debug/kconfig-6.12.0/src/core/kconfigini.cpp:58
#25 KConfigPrivate::parseConfigFiles (this=0x563688ab5e50) at /usr/src/debug/kconfig-6.12.0/src/core/kconfig.cpp:806
        file = @0x56368a1c3630: {d = {d = 0x56368509f8f0, ptr = 0x56368509f900 u"/home/mh/.config/plasmashellrc", size = 30}, static _empty = 0 u'\000'}
        __for_range = @0x7fffbba598f0: {<QListSpecialMethods<QString>> = {<QListSpecialMethodsBase<QString>> = {<No data fields>}, <No data fields>}, d = {d = 0x56368a1c3620, ptr = 0x56368a1c3630, size = 1}}
        __for_begin = {i = <optimized out>}
        __for_end = {i = <optimized out>}
        files = {<QListSpecialMethods<QString>> = {<QListSpecialMethodsBase<QString>> = {<No data fields>}, <No data fields>}, d = {d = 0x56368a1c3620, ptr = 0x56368a1c3630, size = 1}}
        utf8Locale = {d = {d = 0x56368a137480, ptr = 0x56368a137490 "de_DE", size = 5}, static _empty = 0 '\000'}
#26 0x00007f498958b1aa in KSharedConfig::KSharedConfig (this=0x56368885ebe0, fileName=..., flags=..., resType=QStandardPaths::GenericConfigLocation) at /usr/src/debug/kconfig-6.12.0/src/core/ksharedconfig.cpp:179
#27 KSharedConfig::openConfig (_fileName=..., flags=flags@entry=..., resType=resType@entry=QStandardPaths::GenericConfigLocation) at /usr/src/debug/kconfig-6.12.0/src/core/ksharedconfig.cpp:145
        fileName = {d = {d = 0x56368a3557d0, ptr = 0x56368a3557e0 u"plasmashellrc", size = 13}, static _empty = 0 u'\000'}
        global = <optimized out>
        ptr = {d = <optimized out>}
        userWarned = true
#28 0x00007f4987df516a in KIconTheme::current () at /usr/src/debug/kiconthemes-6.12.0/src/kicontheme.cpp:675
        theme = {d = {d = 0x0, ptr = 0x0, size = 0}, static _empty = 0 u'\000'}
        app_cg = {<KConfigBase> = {_vptr.KConfigBase = 0x7fffbba59c20}, d = {d = 0x9}}
#29 0x00007f4987debc59 in KIconLoaderPrivate::initIconThemes (this=0x563683fc3bb0) at /usr/src/debug/kiconthemes-6.12.0/src/kiconloader.cpp:443
        def = <optimized out>
#30 0x00007f4987dde261 in KIconLoaderPrivate::initIconThemes (this=0x563683fc3bb0) at /usr/src/debug/kiconthemes-6.12.0/src/kiconloader.cpp:436
        def = <optimized out>
        qt_category = {static IsOutputEnabled = true, category = <optimized out>, control = <optimized out>}
        qt_category = {static IsOutputEnabled = true, category = <optimized out>, control = <optimized out>}
#31 KIconLoaderPrivate::init (this=0x563683fc3bb0, _appname=<optimized out>, extraSearchPaths=<optimized out>) at /usr/src/debug/kiconthemes-6.12.0/src/kiconloader.cpp:420
        defaultSizesTheme = <optimized out>
        groups = {0x7f4987df67d3 "Desktop", 0x7f4987df67df "Toolbar", 0x7f4987df67db "MainToolbar", 0x7f4987df67e7 "Small", 0x7f4987df67ed "Panel", 0x7f4987df67f3 "Dialog", 0x0}
#32 0x00007f4987deb826 in KIconLoader::newIconLoader (this=0x7f498398b9c8) at /usr/src/debug/kiconthemes-6.12.0/src/kiconloader.cpp:1498
#33 0x00007f4987ddde70 in KIconLoaderPrivate::_k_refreshIcons (this=0x563683fc3bb0, group=4) at /usr/src/debug/kiconthemes-6.12.0/src/kiconloader.cpp:376
        sharedConfig = {d = {ptr = 0x563683fd30c0}}
        newThemeName = {d = {d = 0x56368402efb0, ptr = 0x56368402efc0 u"breeze-dark", size = 11}}
```

Malloc is detecting a memory corruption, it is not necessarily a problem in kconfig but could have happened earlier.

(In reply to David Redondo from comment #2)
> Malloc is detecting a memory corruption, it is not necessarily a problem in
> kconfig but could have happened earlier.

It just happened once, so it seems either to be racy or maybe some bad bit flipped happened. Let me close it until I can reproduce it again.

I just encountered this crash (same backtrace) after resuming from sleep, but it was KRunner that crashed:

Thread 1 (Thread 0x7ff2fbcb7fc0 (LWP 307807)):
[KCrash Handler]
#4  __pthread_kill_implementation (threadid=<optimized out>, signo=6, no_tid=<optimized out>) at pthread_kill.c:44
#5  0x00007ff300fae410 in __GI_raise (sig=6) at ../sysdeps/posix/raise.c:26
#6  0x00007ff300f9557a in __GI_abort () at abort.c:77
#7  0x00007ff300f96613 in __libc_message_impl (fmt=<optimized out>) at ../sysdeps/posix/libc_fatal.c:138
#8  0x00007ff301012d65 in malloc_printerr (str=str@entry=0x7ff301127298 "malloc_consolidate(): unaligned fastbin chunk detected") at malloc.c:5892
#9  0x00007ff301013a8c in malloc_consolidate (av=av@entry=0x7ff301179ac0 <main_arena>) at malloc.c:4964
#10 0x00007ff301015f98 in _int_malloc (av=av@entry=0x7ff301179ac0 <main_arena>, bytes=bytes@entry=32768) at malloc.c:4174
#11 0x00007ff301016a59 in __libc_malloc2 (bytes=32768) at malloc.c:3458
#12 0x00007ff30184b262 in allocateData (allocSize=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/tools/qarraydata.cpp:139
#13 allocateHelper (objectSize=1, alignment=16, capacity=<optimized out>, option=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/tools/qarraydata.cpp:178
#14 allocateHelper (objectSize=1, alignment=16, capacity=<optimized out>, option=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/tools/qarraydata.cpp:154
#15 QArrayData::allocate1 (dptr=0x7ffdb4e71ed0, capacity=<optimized out>, option=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/tools/qarraydata.cpp:208
#16 0x00007ff3017da2a8 in QTypedArrayData<char>::allocate (capacity=140727638499360, option=QArrayData::Grow) at /usr/src/debug/qt6-base/qtbase/src/corelib/tools/qarraydata.h:129
#17 QArrayDataPointer<char>::QArrayDataPointer (this=0x7ffdb4e71ed0, alloc=140727638499360, n=<optimized out>, option=QArrayData::Grow) at /usr/src/debug/qt6-base/qtbase/src/corelib/tools/qarraydatapointer.h:58
#18 QByteArray::reallocData (this=this@entry=0x7ffdb4e72020, alloc=alloc@entry=19306, option=option@entry=QArrayData::Grow) at /usr/src/debug/qt6-base/qtbase/src/corelib/text/qbytearray.cpp:1993
#19 0x00007ff3017da4ab in QByteArray::resize (this=0x7ffdb4e72020, size=19306) at /usr/src/debug/qt6-base/qtbase/src/corelib/text/qbytearray.cpp:1917
#20 0x00007ff3016d8078 in QIODevice::readAll (this=this@entry=0x7ffdb4e71fe0) at /usr/src/debug/qt6-base/qtbase/src/corelib/io/qiodevice.cpp:1269
#21 0x00007ff30304352c in KConfigIniBackend::parseConfig (this=<optimized out>, currentLocale=..., entryMap=..., options=..., merging=false) at /home/nate/kde/src/kconfig/src/core/kconfigini.cpp:83
#22 0x00007ff3030263d5 in KConfigPrivate::parseConfigFiles (this=<optimized out>) at /home/nate/kde/src/kconfig/src/core/kconfig.cpp:826
#23 0x00007ff30304c6fc in KSharedConfig::KSharedConfig (this=0x557b96448360, fileName=..., flags=..., resType=<optimized out>) at /home/nate/kde/src/kconfig/src/core/ksharedconfig.cpp:174
#24 0x00007ff30304ccc2 in KSharedConfig::openConfig (_fileName=..., flags=..., flags@entry=..., resType=resType@entry=QStandardPaths::GenericConfigLocation) at /home/nate/kde/src/kconfig/src/core/ksharedconfig.cpp:141
#25 0x00007ff300b84c1e in KIconTheme::KIconTheme (this=this@entry=0x557b964416a0, name=..., appName=..., basePathHint=...) at /home/nate/kde/src/kiconthemes/src/kicontheme.cpp:424
#26 0x00007ff300b72686 in KIconLoaderPrivate::initIconThemes (this=0x557b95f02eb0) at /home/nate/kde/src/kiconthemes/src/kiconloader.cpp:443
#27 0x00007ff300b7393e in KIconLoaderPrivate::initIconThemes (this=0x557b95f02eb0) at /home/nate/kde/src/kiconthemes/src/kiconloader.cpp:436
#28 KIconLoaderPrivate::init (this=0x557b95f02eb0, _appname=..., extraSearchPaths=...) at /home/nate/kde/src/kiconthemes/src/kiconloader.cpp:420
#29 0x00007ff300b73ff1 in KIconLoader::reconfigure (this=this@entry=0x7ff2fbcb7e18, _appname=..., extraSearchPaths=...) at /home/nate/kde/src/kiconthemes/src/kiconloader.cpp:400
#30 0x00007ff300b74054 in KIconLoader::newIconLoader (this=0x7ff2fbcb7e18) at /home/nate/kde/src/kiconthemes/src/kiconloader.cpp:1502
#31 0x00007ff300b77334 in KIconLoaderPrivate::_k_refreshIcons (this=0x557b95f02eb0, group=4) at /home/nate/kde/src/kiconthemes/src/kiconloader.cpp:376
#32 0x00007ff30177d66f in QtPrivate::QSlotObjectBase::call (this=<optimized out>, r=<optimized out>, a=<optimized out>, this=<optimized out>, r=<optimized out>, a=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qobjectdefs_impl.h:461
#33 doActivate<false> (sender=<optimized out>, signal_index=<optimized out>, argv=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qobject.cpp:4157
#34 0x00007ff300b7951c in QMetaObject::activate<void, int> (sender=0x7ff300b93ea0 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_s_globalData> >::instance()::holder>, mo=0x7ff300b92c00 <KIconLoaderGlobalData::staticMetaObject>, local_signal_index=0, ret=0x0) at /usr/include/qt6/QtCore/qobjectdefs.h:306
#35 KIconLoaderGlobalData::iconChanged (this=0x7ff300b93ea0 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_s_globalData> >::instance()::holder>, _t1=<optimized out>) at /home/nate/kde/build/kiconthemes/src/KF6IconThemes_autogen/include/kiconloader.moc:118
#36 KIconLoaderGlobalData::qt_static_metacall (_o=0x7ff300b93ea0 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_s_globalData> >::instance()::holder>, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7ffdb4e72d28) at /home/nate/kde/build/kiconthemes/src/KF6IconThemes_autogen/include/kiconloader.moc:74
#37 KIconLoaderGlobalData::qt_metacall (this=0x7ff300b93ea0 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_s_globalData> >::instance()::holder>, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7ffdb4e72d28) at /home/nate/kde/build/kiconthemes/src/KF6IconThemes_autogen/include/kiconloader.moc:104
#38 0x00007ff301c179f9 in QDBusConnectionPrivate::deliverCall (this=0x7ff2f4001700, object=0x7ff300b93ea0 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_s_globalData> >::instance()::holder>, msg=..., metaTypes=..., slotIdx=4) at /usr/src/debug/qt6-base/qtbase/src/dbus/qdbusintegrator.cpp:1008
#39 0x00007ff30176aa74 in QObject::event (this=<optimized out>, e=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qobject.cpp:1432
#40 0x00007ff3029b4dd0 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x7ff300b93ea0 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_s_globalData> >::instance()::holder>, e=0x7ff2f4019920) at /usr/src/debug/qt6-base/qtbase/src/widgets/kernel/qapplication.cpp:3300
#41 0x00007ff301711678 in QCoreApplication::notifyInternal2 (receiver=0x7ff300b93ea0 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_s_globalData> >::instance()::holder>, event=event@entry=0x7ff2f4019920) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qcoreapplication.cpp:1106
#42 0x00007ff301711a5b in QCoreApplication::sendEvent (receiver=<optimized out>, event=0x7ff2f4019920) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qcoreapplication.cpp:1546
#43 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x557b95ec7630) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qcoreapplication.cpp:1891
#44 0x00007ff3019ec7f8 in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qcoreapplication.cpp:1744
#45 postEventSourceDispatch (s=0x557b95ed45e0) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:246
#46 0x00007ff2ffb19880 in g_main_dispatch (context=0x7ff2f4000f70) at ../glib/glib/gmain.c:3398
#47 0x00007ff2ffb1acd7 in g_main_context_dispatch_unlocked (context=0x7ff2f4000f70) at ../glib/glib/gmain.c:4249
#48 g_main_context_iterate_unlocked (context=context@entry=0x7ff2f4000f70, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/glib/gmain.c:4314
#49 0x00007ff2ffb1aee5 in g_main_context_iteration (context=0x7ff2f4000f70, may_block=1) at ../glib/glib/gmain.c:4379
#50 0x00007ff3019e8fe2 in QEventDispatcherGlib::processEvents (this=0x557b95ed5060, flags=...) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:399
#51 0x00007ff30171dca6 in QEventLoop::processEvents (this=0x7ffdb4e73390, flags=...) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qeventloop.cpp:104
#52 QEventLoop::exec (this=0x7ffdb4e73390, flags=...) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qeventloop.cpp:186
#53 0x00007ff301715d21 in QCoreApplication::exec () at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qcoreapplication.cpp:1449
#54 0x0000557b6c6eaabd in main (argc=<optimized out>, argv=<optimized out>) at /home/nate/kde/src/plasma-workspace/krunner/main.cpp:147

Probably relevant: I have automatic dark/light mode turned on, so resuming from sleep triggered a Global Theme change from Breeze Dark to Breeze Light. So the triggering event was the same as with Postix's crash.