https://bugs.kde.org/show_bug.cgi?id=359664
Maciej Sitarz <macieksit...@wp.pl> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |macieksit...@wp.pl
--- Comment #5 from Maciej Sitarz <macieksit...@wp.pl> ---
I can confirm this problem occurs in my environment.
OS: Fedora 27
$ rpm -qf /usr/bin/xembedsniproxy
plasma-workspace-5.11.3-2.fc27.x86_64
I think it occurs when accidentally pressing "AltGr" + "PrtSc" on the notebooks
keyboard. Immediately whole KDE crashes.
I'm attaching similar debug as Bernhard did:
# coredumpctl gdb /usr/bin/xembedsniproxy
PID: 2465 (xembedsniproxy)
UID: 500 (username)
GID: 500 (username)
Signal: 11 (SEGV)
Timestamp: Fri 2017-12-15 08:24:13 CET (6h ago)
Command Line: /usr/bin/xembedsniproxy
Executable: /usr/bin/xembedsniproxy
Control Group: /user.slice/user-500.slice/session-1.scope
Unit: session-1.scope
Slice: user-500.slice
Session: 1
Owner UID: 500 (username)
Boot ID: BOOT_ID
Machine ID: MACHINE_ID
Hostname: username.domain
Storage:
/var/lib/systemd/coredump/core.xembedsniproxy.500.7393c2684dc648f1aba76839af1e6948.2465.1513322653000000.lz4
Message: Process 2465 (xembedsniproxy) of user 500 dumped core.
Stack trace of thread 2465:
#0 0x000055e790410157 _ZNK8SNIProxy20getImageNonCompositeEv
(xembedsniproxy)
#1 0x000055e790410424 _ZN8SNIProxy6updateEv (xembedsniproxy)
#2 0x000055e79040d5ad
_ZN19FdoSelectionManager17nativeEventFilterERK10QByteArrayPvPl (xembedsniproxy)
#3 0x00007fbcd6ebbbe4
_ZN24QAbstractEventDispatcher17filterNativeEventERK10QByteArrayPvPl
(libQt5Core.so.5)
#4 0x00007fbcc8076fe0
_ZN14QXcbConnection14handleXcbEventEP19xcb_generic_event_t (libQt5XcbQpa.so.5)
#5 0x00007fbcc8077c6c _ZN14QXcbConnection16processXcbEventsEv
(libQt5XcbQpa.so.5)
#6 0x00007fbcd6ee791a _ZN7QObject5eventEP6QEvent
(libQt5Core.so.5)
#7 0x00007fbcd6ebe27a _ZL8doNotifyP7QObjectP6QEvent
(libQt5Core.so.5)
#8 0x00007fbcd6ebe367
_ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5)
#9 0x00007fbcd6ec0aeb
_ZN23QCoreApplicationPrivate16sendPostedEventsEP7QObjectiP11QThreadData
(libQt5Core.so.5)
#10 0x00007fbcd6f0f553
_ZL23postEventSourceDispatchP8_GSourcePFiPvES1_ (libQt5Core.so.5)
#11 0x00007fbcd0fc8bb7 g_main_context_dispatch
(libglib-2.0.so.0)
#12 0x00007fbcd0fc8f60 g_main_context_iterate.isra.25
(libglib-2.0.so.0)
#13 0x00007fbcd0fc8fec g_main_context_iteration
(libglib-2.0.so.0)
#14 0x00007fbcd6f0f33f
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5)
#15 0x00007fbcd6ebd0ea
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
#16 0x00007fbcd6ec5744 _ZN16QCoreApplication4execEv
(libQt5Core.so.5)
#17 0x000055e79040aa53 main (xembedsniproxy)
#18 0x00007fbcd5ba603a __libc_start_main (libc.so.6)
#19 0x000055e79040af3a _start (xembedsniproxy)
Stack trace of thread 2474:
#0 0x00007fbcd5c928bb __poll (libc.so.6)
#1 0x00007fbcd945cfe7 _xcb_conn_wait (libxcb.so.1)
#2 0x00007fbcd945edda xcb_wait_for_event (libxcb.so.1)
#3 0x00007fbcc8075a49 _ZN15QXcbEventReader3runEv
(libQt5XcbQpa.so.5)
#4 0x00007fbcd6d12b92 _ZN14QThreadPrivate5startEPv
(libQt5Core.so.5)
#5 0x00007fbcd596d609 start_thread (libpthread.so.0)
#6 0x00007fbcd5c9ee6f __clone (libc.so.6)
Stack trace of thread 2707:
#0 0x00007fbcd5c928bb __poll (libc.so.6)
#1 0x00007fbcd0fc8ed9 g_main_context_iterate.isra.25
(libglib-2.0.so.0)
#2 0x00007fbcd0fc8fec g_main_context_iteration
(libglib-2.0.so.0)
#3 0x00007fbcd6f0f33f
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5)
#4 0x00007fbcd6ebd0ea
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
#5 0x00007fbcd6d0e8ba _ZN7QThread4execEv (libQt5Core.so.5)
#6 0x00007fbcd98dc479 _ZN22QDBusConnectionManager3runEv
(libQt5DBus.so.5)
#7 0x00007fbcd6d12b92 _ZN14QThreadPrivate5startEPv
(libQt5Core.so.5)
#8 0x00007fbcd596d609 start_thread (libpthread.so.0)
#9 0x00007fbcd5c9ee6f __clone (libc.so.6)
GNU gdb (GDB) Fedora 8.0.1-33.fc27
<LINES REMOVED>
Reading symbols from /usr/bin/xembedsniproxy...Reading symbols from
/usr/lib/debug/usr/bin/xembedsniproxy-5.11.3-2.fc27.x86_64.debug...done.
done.
[New LWP 2465]
[New LWP 2474]
[New LWP 2707]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/usr/bin/xembedsniproxy'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 SNIProxy::getImageNonComposite (this=this@entry=0x55e791fc3d30) at
/usr/src/debug/plasma-workspace-5.11.3-2.fc27.x86_64/xembed-sni-proxy/sniproxy.cpp:291
291 QImage naiveConversion = QImage(image->data, image->width,
image->height, QImage::Format_ARGB32);
[Current thread is 1 (Thread 0x7fbcd9d20d40 (LWP 2465))]
Missing separate debuginfos, use: dnf debuginfo-install
bzip2-libs-1.0.6-24.fc27.x86_64
<LINES REMOVED>
(gdb) list SNIProxy::getImageNonComposite
273
274 return true;
275 }
276
277 QImage SNIProxy::getImageNonComposite() const
278 {
279 auto c = QX11Info::connection();
280 auto cookie = xcb_get_geometry(c, m_windowId);
281 QScopedPointer<xcb_get_geometry_reply_t, QScopedPointerPodDeleter>
282 geom(xcb_get_geometry_reply(c, cookie, Q_NULLPTR));
(gdb) disassemble SNIProxy::getImageNonComposite
Dump of assembler code for function SNIProxy::getImageNonComposite() const:
<LINES REMOVED>
0x000055e790410142 <+98>: xor %edx,%edx
0x000055e790410144 <+100>: mov 0x18(%rbx),%esi
0x000055e790410147 <+103>: mov %r13,%rdi
0x000055e79041014a <+106>: mov %rax,%rbp
0x000055e79041014d <+109>: lea 0x30(%rsp),%r13
0x000055e790410152 <+114>: callq 0x55e790409cb0 <xcb_image_get@plt>
=> 0x000055e790410157 <+119>: movzwl 0x2(%rax),%ecx
0x000055e79041015b <+123>: movzwl (%rax),%edx
0x000055e79041015e <+126>: xor %r9d,%r9d
0x000055e790410161 <+129>: mov 0x28(%rax),%rsi
0x000055e790410165 <+133>: mov $0x5,%r8d
<LINES REMOVED>
0x000055e7904101a7 <+199>: mov $0x5,%r9d
---Type <return> to continue, or q <return> to quit---q
Quit
(gdb) print/x $ecx
$1 = 0xd5974685
(gdb) print/x $rax
$2 = 0x0
(gdb)
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