Version-Release number of selected component: powerdevil-5.15.5-1.fc30 Additional info: reporter: libreport-2.10.0 backtrace_rating: 4 cmdline: /usr/libexec/org_kde_powerdevil crash_function: qt_message_fatal executable: /usr/libexec/org_kde_powerdevil journald_cursor: s=a9aebcdbbb5c49eebe3db5b01fd26b41;i=bd9;b=8e6a9b84b558403fbe3af5b179328b14;m=7d6e033;t=58992c8a9fe33;x=860c7c665a3f0a74 kernel: 5.0.17-300.fc30.x86_64 rootdir: / runlevel: N 5 type: CCpp uid: 1000 Truncated backtrace: Thread no. 1 (9 frames) #2 qt_message_fatal at global/qlogging.cpp:1901 #3 QMessageLogger::fatal at global/qlogging.cpp:887 #4 init_platform at ../../include/QtCore/../../src/corelib/tools/qarraydata.h:208 #5 QGuiApplicationPrivate::createPlatformIntegration at kernel/qguiapplication.cpp:1384 #6 QGuiApplicationPrivate::createEventDispatcher at kernel/qguiapplication.cpp:1401 #7 QCoreApplicationPrivate::init at kernel/qcoreapplication.cpp:857 #8 QGuiApplicationPrivate::init at kernel/qguiapplication.cpp:1430 #9 QGuiApplication::QGuiApplication at ../../include/QtCore/../../src/corelib/global/qglobal.h:1038 #10 PowerDevilApp::PowerDevilApp at /usr/src/debug/powerdevil-5.15.5-1.fc30.x86_64/daemon/powerdevilapp.cpp:202
Created attachment 1572663 [details] File: backtrace
Created attachment 1572664 [details] File: cgroup
Created attachment 1572665 [details] File: core_backtrace
Created attachment 1572666 [details] File: cpuinfo
Created attachment 1572667 [details] File: dso_list
Created attachment 1572668 [details] File: environ
Created attachment 1572669 [details] File: limits
Created attachment 1572670 [details] File: maps
Created attachment 1572671 [details] File: mountinfo
Created attachment 1572672 [details] File: open_fds
Created attachment 1572673 [details] File: proc_pid_status
#2 qt_message_fatal at global/qlogging.cpp:1901 #3 QMessageLogger::fatal at global/qlogging.cpp:887 A message was logged on the failure, but no logs or messages were included in this report.
*** Bug 1717872 has been marked as a duplicate of this bug. ***
Similar problem has been detected: This powerdevil crash happened 3 times today when I logged out of Plasma 5.15.5 on Wayland to sddm. powerdevil seemed to abort because it was running after the Wayland compositor connection had been broken based on the journal messages as follows. Jun 08 20:34:25 org_kde_powerdevil[6263]: The Wayland connection broke. Did the Wayland compositor die? Jun 08 20:34:26 audit[12662]: ANOM_ABEND auid=1000 uid=1000 gid=1000 ses=9 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 pid=12662 comm="org_kde_powerde" exe="/usr/libexec/org_kde_powerdevil" sig=6 res=1 Jun 08 20:34:26 org_kde_powerdevil[12662]: Failed to create wl_display (No such file or directory) Jun 08 20:34:26 org_kde_powerdevil[12662]: qt.qpa.plugin: Could not load the Qt platform plugin "wayland" in "" even though it was found. Jun 08 20:34:26 org_kde_powerdevil[12662]: This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem. I could attach the full journal. reporter: libreport-2.10.0 backtrace_rating: 4 cmdline: /usr/libexec/org_kde_powerdevil crash_function: qt_message_fatal executable: /usr/libexec/org_kde_powerdevil journald_cursor: s=c8604fe939df427387254aded2bb6f94;i=1590c;b=843277dbcb814000b0ee707631da3d5f;m=631129d2d;t=58ad939ed8696;x=ed58afe32830ee2b kernel: 5.1.7-300.fc30.x86_64 package: powerdevil-5.15.5-1.fc30 reason: org_kde_powerdevil killed by SIGABRT rootdir: / runlevel: N 5 type: CCpp uid: 1000
coredumpctl info /usr/libexec/drkonqi had four crashes with traces like those reported here before when I logged out of Plasma on Wayland with command lines like /usr/libexec/drkonqi -platform wayland --appname org_kde_powerdevil --apppath org_kde_powerdevil --apppath /usr/libexec --signal 11 --pid 6263 --startupid 0 --restarted I interpreted that as segmentation faults had happened in org_kde_powerdevil when logging out of Plasma on Wayland. I switched from Plasma on Wayland to another VT and logged in. I ran gdb -p pid where pid was the process id of org_kde_powerdevil. I continued running it with c in gdb. I switched back to Plasma and logged out. I switch back to the VT. gdb showed a segmentation fault as follows. Core was generated by `/usr/libexec/org_kde_powerdevil'. Program terminated with signal SIGSEGV, Segmentation fault. #0 _int_free (av=0x7f498b549c60 <main_arena>, p=0x5617ea20c540, have_lock=<optimized out>) at malloc.c:4330 4330 if (__glibc_unlikely (!prev_inuse(nextchunk))) [Current thread is 1 (Thread 0x7f498b386880 (LWP 17015))] nextchunk was a pointer to an inaccessible address which would explain the segmentation fault which might have resulted from memory corruption. (gdb) p nextchunk $1 = (mchunkptr) 0xd56175efca50 (gdb) x 0xd56175efca50 0xd56175efca50: Cannot access memory at address 0xd56175efca50 The lines around malloc.c:4330 were (gdb) list 4325 if (__builtin_expect (contiguous (av) 4326 && (char *) nextchunk 4327 >= ((char *) av->top + chunksize(av->top)), 0)) 4328 malloc_printerr ("double free or corruption (out)"); 4329 /* Or whether the block is actually not marked used. */ 4330 if (__glibc_unlikely (!prev_inuse(nextchunk))) 4331 malloc_printerr ("double free or corruption (!prev)"); 4332 4333 nextsize = chunksize(nextchunk); 4334 if (__builtin_expect (chunksize_nomask (nextchunk) <= 2 * SIZE_SZ, 0) I used gcore /programs/kde/powerdevil/gdb-powerdevil-segmentation-fault-1.core to save the core dump. The full trace of the crashing thread follows. The size = 139953854940432 in the _int_free function of malloc.c in #0 looks too large to be valid. qt functions in #1-#3 and kf5-kidletime functions in #4-#8 might have been involved. (gdb) bt full #0 _int_free (av=0x7f498b549c60 <main_arena>, p=0x5617ea20c540, have_lock=<optimized out>) at malloc.c:4330 size = 139953854940432 fb = <optimized out> nextchunk = 0xd56175efca50 nextsize = <optimized out> nextinuse = <optimized out> prevsize = <optimized out> bck = <optimized out> fwd = <optimized out> __PRETTY_FUNCTION__ = "_int_free" #1 0x00007f498b85f017 in QHashData::free_helper (this=0x5617ea1be4a0, node_delete=node_delete@entry=0x7f498aff0280 <QHash<int, int>::deleteNode2(QHashData::Node*)>) at tools/qhash.cpp:573 next = 0x0 cur = 0x5617ea20c550 this_e = 0x5617ea1be4a0 bucket = 0x5617ea1c00a0 n = <optimized out> #2 0x00007f498afee847 in QHash<int, int>::freeData (this=0x5617ea126c00, x=<optimized out>) at /usr/include/qt5/QtCore/qhash.h:585 No locals. #3 QHash<int, int>::~QHash (this=0x5617ea126c00, __in_chrg=<optimized out>) at /usr/include/qt5/QtCore/qhash.h:254 No locals. --Type <RET> for more, q to quit, c to continue without paging--c #4 KIdleTimePrivate::~KIdleTimePrivate (this=0x5617ea126be0, __in_chrg=<optimized out>) at /usr/src/debug/kf5-kidletime-5.58.0-1.fc30.x86_64/src/kidletime.cpp:57 No locals. #5 KIdleTime::~KIdleTime (this=0x5617ea180880, __in_chrg=<optimized out>) at /usr/src/debug/kf5-kidletime-5.58.0-1.fc30.x86_64/src/kidletime.cpp:96 d = <optimized out> d = <optimized out> #6 0x00007f498afee88d in KIdleTime::~KIdleTime (this=0x5617ea180880, __in_chrg=<optimized out>) at /usr/src/debug/kf5-kidletime-5.58.0-1.fc30.x86_64/src/kidletime.cpp:92 d = <optimized out> #7 0x00007f498afee546 in KIdleTimeHelper::~KIdleTimeHelper (this=<optimized out>, __in_chrg=<optimized out>) at /usr/src/debug/kf5-kidletime-5.58.0-1.fc30.x86_64/src/kidletime.cpp:39 No locals. #8 (anonymous namespace)::Q_QGS_s_globalKIdleTime::Holder::~Holder (this=<optimized out>, __in_chrg=<optimized out>) at /usr/src/debug/kf5-kidletime-5.58.0-1.fc30.x86_64/src/kidletime.cpp:46 No locals. #9 0x00007f498b3c3670 in __run_exit_handlers (status=status@entry=1, listp=0x7f498b549738 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true, run_dtors=run_dtors@entry=true) at exit.c:108 atfct = <optimized out> onfct = <optimized out> cxafct = <optimized out> f = <optimized out> new_exitfn_called = 245 cur = 0x5617ea12b420 #10 0x00007f498b3c37b0 in __GI_exit (status=status@entry=1) at exit.c:139 No locals. #11 0x00007f497a300f92 in QtWaylandClient::QWaylandDisplay::exitWithError (this=this@entry=0x5617ea0c78b0) at qwaylanddisplay.cpp:205 No locals. #12 0x00007f497a300ff6 in QtWaylandClient::QWaylandDisplay::flushRequests (this=0x5617ea0c78b0) at qwaylanddisplay.cpp:188 No locals. #13 0x00007f498b9df5ab in QMetaObject::activate (sender=0x5617ea0e3880, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3789 methodIndex = <optimized out> method_relative = <optimized out> callFunction = 0x7f497a3299c0 <QtWaylandClient::QWaylandDisplay::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)> receiver = 0x5617ea0c78b0 receiverInSameThread = <optimized out> sw = {receiver = 0x5617ea0c78b0, previousSender = 0x0, currentSender = {sender = 0x5617ea0e3880, signal = 3, ref = 1}, switched = true} c = 0x5617ea0d1e50 last = 0x5617ea0d1e50 locker = {val = 139953854403096} connectionLists = {connectionLists = 0x5617ea0eaf00} list = <optimized out> currentThreadId = 0x7f498b386880 signal_index = 3 empty_argv = {0x0} #14 0x00007f498b9eb7fc in QSocketNotifier::activated (this=this@entry=0x5617ea0e3880, _t1=<optimized out>, _t2=...) at .moc/moc_qsocketnotifier.cpp:140 _a = {0x0, 0x7ffe11edc9dc, 0x7ffe11edca10} #15 0x00007f498b9ebb61 in QSocketNotifier::event (this=0x5617ea0e3880, e=0x7ffe11edcae0) at kernel/qsocketnotifier.cpp:266 d = 0x5617ea0e29e0 #16 0x00007f498b9b5255 in doNotify (receiver=<optimized out>, event=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:142 No locals. #17 0x00007f498b9b52e8 in QCoreApplication::notifyInternal2 (receiver=0x5617ea0e3880, event=0x7ffe11edcae0) at kernel/qcoreapplication.cpp:1060 selfRequired = true result = false cbdata = {0x5617ea0e3880, 0x7ffe11edcae0, 0x7ffe11edca8f} d = <optimized out> threadData = 0x5617ea0d00a0 scopeLevelCounter = {threadData = 0x5617ea0d00a0} #18 0x00007f498ba0ada7 in socketNotifierSourceDispatch (source=source@entry=0x5617ea0d5010) at kernel/qeventdispatcher_glib.cpp:106 p = <optimized out> i = 0 event = {_vptr.QEvent = 0x7f498bc65c70 <vtable for QEvent+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7f498bb50140 <qt_meta_stringdata_QEvent>, data = 0x7f498bb4fb80 <qt_meta_data_QEvent>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}, d = 0x0, t = 50, posted = 0, spont = 0, m_accept = 1, reserved = 573} src = <optimized out> #19 0x00007f4989ec8edd in g_main_dispatch (context=0x5617ea0e4500) at ../glib/gmain.c:3189 dispatch = <optimized out> prev_source = 0x0 was_in_call = <optimized out> user_data = 0x0 callback = 0x0 cb_funcs = 0x0 cb_data = 0x0 need_destroy = <optimized out> source = 0x5617ea0d5010 current = 0x5617ea11a8e0 i = 0 __FUNCTION__ = "g_main_dispatch" #20 g_main_context_dispatch (context=context@entry=0x5617ea0e4500) at ../glib/gmain.c:3854 No locals. #21 0x00007f4989ec9270 in g_main_context_iterate (context=context@entry=0x5617ea0e4500, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3927 max_priority = 2147483647 timeout = 4692 some_ready = 1 nfds = <optimized out> allocated_nfds = <optimized out> fds = 0x7f4974014be0 #22 0x00007f4989ec9313 in g_main_context_iteration (context=0x5617ea0e4500, may_block=may_block@entry=1) at ../glib/gmain.c:3988 retval = <optimized out> #23 0x00007f498ba0a3f5 in QEventDispatcherGlib::processEvents (this=0x5617ea0e2bf0, flags=...) at kernel/qeventdispatcher_glib.cpp:422 d = 0x5617ea0e3ce0 canWait = true savedFlags = {i = 0} result = <optimized out> #24 0x00007f498b9b42bb in QEventLoop::exec (this=this@entry=0x7ffe11edcd00, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140 d = 0x5617ea17b250 locker = {val = 94660710957488} ref = {d = 0x5617ea17b250, locker = @0x7ffe11edcc88, exceptionCaught = true} app = <optimized out> #25 0x00007f498b9bbfd6 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:120 threadData = 0x5617ea0d00a0 eventLoop = {<QObject> = {_vptr.QObject = 0x7f498bc65a28 <vtable for QEventLoop+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7f498bb54e20 <qt_meta_stringdata_QObject>, data = 0x7f498bb54d00 <qt_meta_data_QObject>, static_metacall = 0x7f498b9e7810 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x5617ea17b250}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7f498bb57d40 <qt_meta_stringdata_Qt>, data = 0x7f498bb54f40 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7f498bc5dfe0 <QObject::staticMetaObject>, stringdata = 0x7f498bb4f260 <qt_meta_stringdata_QEventLoop>, data = 0x7f498bb4f200 <qt_meta_data_QEventLoop>, static_metacall = 0x7f498b9b3fd0 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}} returnCode = <optimized out> #26 0x00005617e9c9d5f4 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/powerdevil-5.15.5-1.fc30.x86_64/daemon/powerdevilapp.cpp:216 app = {<QGuiApplication> = {<QCoreApplication> = {<QObject> = {_vptr.QObject = 0x5617e9cae358 <vtable for PowerDevilApp+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7f498bb54e20 <qt_meta_stringdata_QObject>, data = 0x7f498bb54d00 <qt_meta_data_QObject>, static_metacall = 0x7f498b9e7810 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x5617ea0cff70}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7f498bb57d40 <qt_meta_stringdata_Qt>, data = 0x7f498bb54f40 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7f498bc5dfe0 <QObject::staticMetaObject>, stringdata = 0x7f498bb4f8a0 <qt_meta_stringdata_QCoreApplication>, data = 0x7f498bb4f780 <qt_meta_data_QCoreApplication>, static_metacall = 0x7f498b9b6d40 <QCoreApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, static self = 0x7ffe11edcd80}, static staticMetaObject = {d = {superdata = 0x7f498bc65bc0 <QCoreApplication::staticMetaObject>, stringdata = 0x7f498c153e60 <qt_meta_stringdata_QGuiApplication>, data = 0x7f498c153be0 <qt_meta_data_QGuiApplication>, static_metacall = 0x7f498be216f0 <QGuiApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7f498c22be00 <QGuiApplication::staticMetaObject>, stringdata = 0x5617e9ca85c0 <qt_meta_stringdata_PowerDevilApp>, data = 0x5617e9ca8560 <qt_meta_data_PowerDevilApp>, static_metacall = 0x5617e9c9d720 <PowerDevilApp::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, m_core = 0x7f497400d280} disableSessionManagement = <optimized out> service = <incomplete type> I terminated org_kde_powerdevil from ksysguard in another session of Plasma on Wayland. I ran valgrind --log-file=valgrind-powerdevil-3.txt /usr/libexec/org_kde_powerdevil & (in konsole). I logged out of Plasma. The valgrind log file had 21 invalid reads and writes which appeared to be use-after-free errors since they all had lines like "Address 0x1934ea3c is 44 bytes inside a block of size 72 free'd". The first such invalid read was in wl_proxy_unref (wayland-client.c:229) which might be related to why the crashes have only happened with Plasma on Wayland and not Plasma on X. ==4203== Invalid read of size 4 ==4203== at 0x172BFBB4: wl_proxy_unref (wayland-client.c:229) ==4203== by 0x172BFCB3: destroy_queued_closure (wayland-client.c:291) ==4203== by 0x172BFEC7: dispatch_event.isra.0 (wayland-client.c:1436) ==4203== by 0x172C146B: dispatch_queue (wayland-client.c:1576) ==4203== by 0x172C146B: wl_display_dispatch_queue_pending (wayland-client.c:1818) ==4203== by 0x172C18AA: wl_display_roundtrip_queue (wayland-client.c:1241) ==4203== by 0x194887C3: KWayland::Client::ConnectionThread::roundtrip() (connection_thread.cpp:290) ==4203== by 0x171BB1A3: Poller::initWayland() (poller.cpp:93) ==4203== Address 0x1934ea3c is 44 bytes inside a block of size 72 free'd ==4203== at 0x4839A0C: free (vg_replace_malloc.c:540) ==4203== by 0x1949F844: destroy (wayland_pointer_p.h:63) ==4203== by 0x1949F844: KWayland::Client::Registry::Private::globalSync(void*, wl_callback*, unsigned int) (registry.cpp:539) ==4203== by 0x485CB27: ffi_call_unix64 (in /usr/lib64/libffi.so.6.0.2) ==4203== by 0x485C338: ffi_call (in /usr/lib64/libffi.so.6.0.2) ==4203== by 0x172C3606: wl_closure_invoke (connection.c:1014) ==4203== by 0x172BFF17: dispatch_event.isra.0 (wayland-client.c:1430) ==4203== by 0x172C146B: dispatch_queue (wayland-client.c:1576) ==4203== by 0x172C146B: wl_display_dispatch_queue_pending (wayland-client.c:1818) ==4203== by 0x172C18AA: wl_display_roundtrip_queue (wayland-client.c:1241) ==4203== by 0x194887C3: KWayland::Client::ConnectionThread::roundtrip() (connection_thread.cpp:290) ==4203== by 0x171BB1A3: Poller::initWayland() (poller.cpp:93) ==4203== Block was alloc'd at ==4203== at 0x483AB1A: calloc (vg_replace_malloc.c:762) ==4203== by 0x172BFD42: UnknownInlinedFun (wayland-private.h:236) ==4203== by 0x172BFD42: proxy_create.isra.0 (wayland-client.c:421) ==4203== by 0x172C042B: create_outgoing_proxy (wayland-client.c:650) ==4203== by 0x172C042B: wl_proxy_marshal_array_constructor_versioned (wayland-client.c:735) ==4203== by 0x172C0782: wl_proxy_marshal_constructor (wayland-client.c:824) ==4203== by 0x1949FCED: wl_display_sync (wayland-client-protocol.h:958) ==4203== by 0x1949FCED: KWayland::Client::Registry::create(wl_display*) (registry.cpp:470) ==4203== by 0x1949FD6A: KWayland::Client::Registry::create(KWayland::Client::ConnectionThread*) (registry.cpp:479) ==4203== by 0x171BB05B: Poller::initWayland() (poller.cpp:60) ==4203== Memory corruption from those use-after-free errors involving wayland-client, various qt5, kf5-kidletime packages might have led to the segmentation faults. I'll attach the valgrind and gdb log files.
Created attachment 1578851 [details] valgrind --log-file=valgrind-powerdevil-3.txt /usr/libexec/org_kde_powerdevil & output with invalid reads/writes after logging out of Plasma on Wayland
Created attachment 1578852 [details] gdb output with full trace of all threads from segmentation fault of org_kde_powerdevil when logging out of Plasma on Wayland
Best to engage upstream @ bugs.kde.org , we will likely not have the ability to resolve this without their input and collaboration.
(In reply to Rex Dieter from comment #18) > Best to engage upstream @ bugs.kde.org , we will likely not have the ability > to resolve this without their input and collaboration. Rex, I reported this issue at https://bugs.kde.org/show_bug.cgi?id=408553 Thanks.
Similar problem has been detected: after poweron reporter: libreport-2.10.1 backtrace_rating: 4 cmdline: /usr/libexec/org_kde_powerdevil crash_function: qt_message_fatal executable: /usr/libexec/org_kde_powerdevil journald_cursor: s=9dcfc778b31b4df7b91b5dd8e4ccc843;i=20e5f;b=6e71daa2b40e4f7f8e72a2b2421d4b4f;m=41abbdb;t=58ede2cc823ba;x=c66f195d5d8f4783 kernel: 5.1.19-300.fc30.x86_64 package: powerdevil-5.15.5-1.fc30 reason: org_kde_powerdevil killed by SIGABRT rootdir: / runlevel: N 5 type: CCpp uid: 1001
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Fedora 30 changed to end-of-life (EOL) status on 2020-05-26. Fedora 30 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.