https://bugs.kde.org/show_bug.cgi?id=467827

Nate Graham <n...@kde.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |n...@kde.org
            Summary|Discover crash upon         |Discover crash upon startup
                   |startup, failing to find    |in
                   |flathub                     |FlatpakBackend::getAppForIn
                   |                            |stalledRef() after failing
                   |                            |to find flathub

--- Comment #1 from Nate Graham <n...@kde.org> ---
Thanks, that's a great backtrace. Pasting it inline for searchability:

Thread 1 (Thread 0x7ffff16d9940 (LWP 18288) "plasma-discover"):
#0  0x00007fffbc319f3d in
FlatpakBackend::getAppForInstalledRef(_FlatpakInstallation*,
_FlatpakInstalledRef*, bool*) const (this=this@entry=0x555555b16320,
installation=installation@entry=0x7fff9c004ad0, ref=ref@entry=0x555555ab3c10,
freshResource=freshResource@entry=0x0) at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/libdiscover/backends/FlatpakBackend/FlatpakBackend.cpp:522
        origin = {d = 0x555555b94e30}
        source = {value = 0x0, d = 0x0}
        pathExports = {d = 0x555555b8a120}
        pathApps = {d = 0x555555b50da0}
        refId = {d = 0x555555b0d370}
        cid = {m_cpt = 0x555555b6d360}
        resource = <optimized out>
#1  0x00007fffbc31b868 in
FlatpakBackend::loadLocalUpdates(_FlatpakInstallation*)
(flatpakInstallation=0x7fff9c004ad0, this=0x555555b16320) at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/libdiscover/backends/FlatpakBackend/FlatpakBackend.cpp:1149
        ref = 0x555555ab3c10
        latestCommit = 0x555555b5b460
"2036d952f295ada5fd8e7d9f2462dc5ddcec42ef647100315bb3691503091bae"
        commit = <optimized out>
        resource = <optimized out>
        i = 2
        localError = 0x0
        refs = 0x555555b4cf00
        installation = 0x7fff9c004ad0
        __for_range = @0x555555b16378: {d = 0x555555b426a0}
        __for_begin = 0x555555b426c0
        __for_end = 0x555555b426c8
#2  FlatpakBackend::metadataRefreshed(_FlatpakRemote*) (remote=<optimized out>,
this=0x555555b16320) at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/libdiscover/backends/FlatpakBackend/FlatpakBackend.cpp:1040
        installation = 0x7fff9c004ad0
        __for_range = @0x555555b16378: {d = 0x555555b426a0}
        __for_begin = 0x555555b426c0
        __for_end = 0x555555b426c8
#3  FlatpakBackend::metadataRefreshed(_FlatpakRemote*)
(this=this@entry=0x555555b16320, remote=<optimized out>,
remote@entry=0x555555b38150) at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/libdiscover/backends/FlatpakBackend/FlatpakBackend.cpp:1033
#4  0x00007fffbc31d24a in
FlatpakBackend::integrateRemote(_FlatpakInstallation*, _FlatpakRemote*)
(this=<optimized out>, flatpakInstallation=<optimized out>, remote=<optimized
out>) at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/libdiscover/backends/FlatpakBackend/FlatpakBackend.cpp:1116
        source = {value = 0x555555b4e9a0, d = 0x555555b4e990}
#5  0x00007fffbc327413 in
FlatpakBackend::checkForRemoteUpdates(_FlatpakInstallation*, _FlatpakRemote*)
(this=0x555555b16320, installation=0x7fffa000ab40, remote=<optimized out>) at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/libdiscover/backends/FlatpakBackend/FlatpakBackend.cpp:1839
        needsIntegration = true
        job = <optimized out>
#6  0x00007fffbc31f673 in FlatpakBackend::loadRemote(_FlatpakInstallation*,
_FlatpakRemote*) (this=0x555555b16320, installation=0x7fffa000ab40,
remote=<optimized out>) at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/libdiscover/backends/FlatpakBackend/FlatpakBackend.cpp:1007
        fileTimestamp = 0x555555b4c940
        path_str = 0x555555b559f0
"/var/lib/flatpak/appstream/fedora-testing/x86_64/.timestamp"
        fileInfo = {d_ptr = {d = 0x555555a78800}}
#7  0x00007fffbc30ece9 in
FlatpakBackend::loadAppsFromAppstreamData(_FlatpakInstallation*)
(flatpakInstallation=0x7fffa000ab40, this=0x555555b16320) at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/libdiscover/backends/FlatpakBackend/FlatpakBackend.cpp:992
        remote = <optimized out>
        i = 0
        error = 0x0
        remotes = 0x555555b48e80
        installation = 0x7fffa000ab40
        __for_range = @0x555555b16378: {d = 0x555555b426a0}
        __for_begin = 0x555555b426b8
        __for_end = 0x555555b426c8
        error = 0x0
        c = <optimized out>
#8  FlatpakBackend::loadAppsFromAppstreamData() (this=0x555555b16320) at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/libdiscover/backends/FlatpakBackend/FlatpakBackend.cpp:973
        installation = 0x7fffa000ab40
        __for_range = @0x555555b16378: {d = 0x555555b426a0}
        __for_begin = 0x555555b426b8
        __for_end = 0x555555b426c8
        error = 0x0
        c = <optimized out>
#9  FlatpakBackend::FlatpakBackend(QObject*) (parent=<optimized out>,
this=0x555555b16320) at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/libdiscover/backends/FlatpakBackend/FlatpakBackend.cpp:302
        error = 0x0
        c = <optimized out>
#10 FlatpakBackendFactory::newInstance(QObject*, QString const&) const
(this=<optimized out>, parent=<optimized out>, name=...) at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/libdiscover/backends/FlatpakBackend/FlatpakBackend.cpp:57
        c = <optimized out>
#11 0x00007ffff7ec9509 in DiscoverBackendsFactory::backendForFile(QString
const&, QString const&) const (this=this@entry=0x7fffffffd2cf, libname=...,
name=...) at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/libdiscover/DiscoverBackendsFactory.cpp:58
        loader = 0x555555b0b680
        f = <optimized out>
        instances = {d = 0xc95663a3f71dc700}
#12 0x00007ffff7ec9a5f in DiscoverBackendsFactory::backend(QString const&)
const (this=this@entry=0x7fffffffd2cf, name=...) at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/libdiscover/DiscoverBackendsFactory.cpp:44
#13 0x00007ffff7ec9bcb in operator() (name=..., __closure=<synthetic pointer>)
at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/libdiscover/DiscoverBackendsFactory.cpp:95
        v = @0x555555a78dd0: {d = 0x555555a78d40}
        __for_range = @0x7fffffffd240: {<QList<QString>> =
{<QListSpecialMethods<QString>> = {<No data fields>}, {p = {static shared_null
= {ref = {atomic = {_q_value = std::atomic<int> = { -1 }}}, alloc = 0, begin =
0, end = 0, array = {0x0}}, d = 0x555555a78db0}, d = 0x555555a78db0}}, <No data
fields>}
        names = {<QList<QString>> = {<QListSpecialMethods<QString>> = {<No data
fields>}, {p = {static shared_null = {ref = {atomic = {_q_value =
std::atomic<int> = { -1 }}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d =
0x555555a78db0}, d = 0x555555a78db0}}, <No data fields>}
        ret = {d = 0x555555ab7b70}
#14 kTransform<QVector<AbstractResourcesBackend*>, QStringList,
DiscoverBackendsFactory::allBackends() const::<lambda(const QString&)> >
(op=..., input=...) at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/libdiscover/utils.h:53
        v = @0x555555a78dd0: {d = 0x555555a78d40}
        __for_range = @0x7fffffffd240: {<QList<QString>> =
{<QListSpecialMethods<QString>> = {<No data fields>}, {p = {static shared_null
= {ref = {atomic = {_q_value = std::atomic<int> = { -1 }}}, alloc = 0, begin =
0, end = 0, array = {0x0}}, d = 0x555555a78db0}, d = 0x555555a78db0}}, <No data
fields>}
        names = {<QList<QString>> = {<QListSpecialMethods<QString>> = {<No data
fields>}, {p = {static shared_null = {ref = {atomic = {_q_value =
std::atomic<int> = { -1 }}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d =
0x555555a78db0}, d = 0x555555a78db0}}, <No data fields>}
        ret = {d = 0x555555ab7b70}
#15 DiscoverBackendsFactory::allBackends() const (this=0x7fffffffd2cf) at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/libdiscover/DiscoverBackendsFactory.cpp:96
        names = {<QList<QString>> = {<QListSpecialMethods<QString>> = {<No data
fields>}, {p = {static shared_null = {ref = {atomic = {_q_value =
std::atomic<int> = { -1 }}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d =
0x555555a78db0}, d = 0x555555a78db0}}, <No data fields>}
        ret = {d = 0x555555ab7b70}
#16 0x00007ffff7eb5e99 in ResourcesModel::registerAllBackends()
(this=0x555555a6fdc0) at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/libdiscover/resources/ResourcesModel.cpp:237
        f = {<No data fields>}
        backends = {d = 0x555555ab7b70}
#17 0x00007ffff7eafa38 in ResourcesModel::init(bool)
(this=this@entry=0x555555a6fdc0, load=load@entry=true) at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/libdiscover/resources/ResourcesModel.cpp:94
#18 0x00007ffff7eafa97 in ResourcesModel::global() () at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/libdiscover/resources/ResourcesModel.cpp:37
#19 0x00007ffff7ea6165 in CategoryModel::CategoryModel(QObject*)
(this=0x555555a6fb80, parent=<optimized out>, this=<optimized out>,
parent=<optimized out>) at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/libdiscover/Category/CategoryModel.cpp:22
        t = 0x555555a6fc10
#20 0x00007ffff7ea6375 in CategoryModel::global() () at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/libdiscover/Category/CategoryModel.cpp:39
        instance = 0x0
#21 0x000055555558972f in DiscoverDeclarativePlugin::registerTypes(char const*)
(this=<optimized out>) at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/discover/DiscoverDeclarativePlugin.cpp:57
#22 0x0000555555575eba in
DiscoverObject::DiscoverObject(DiscoverObject::CompactMode, QMap<QString,
QVariant> const&) (this=0x5555559efce0, mode=<optimized out>,
initialProperties=<optimized out>, this=<optimized out>, mode=<optimized out>,
initialProperties=<optimized out>) at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/discover/DiscoverObject.cpp:136
        factory = <optimized out>
        uri = 0x555555591126 "org.kde.discover"
        plugin = 0x555555a682f0
        action = <optimized out>
#23 0x000055555556daa8 in main(int, char**) (argc=<optimized out>,
argv=<optimized out>) at
/usr/src/debug/plasma-discover-5.27.2-1.fc37.x86_64/discover/main.cpp:176
        options = {<QList<QString>> = {<QListSpecialMethods<QString>> = {<No
data fields>}, {p = {d = 0x7ffff5d6dd50 <QListData::shared_null>}, d =
0x7ffff5d6dd50 <QListData::shared_null>}}, <No data fields>}
        initialProperties = {d = 0x7ffff5d6dd80 <QMapDataBase::shared_null>}
        parser = {d = <optimized out>}
        feedback = <optimized out>
        service = <optimized out>
        format = {d = 0x5555555d5640}
        app = <incomplete type>
        about = {d = std::unique_ptr<KAboutDataPrivate> = {get() =
0x5555559b48b0}}
        mainWindow = 0x0

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