Bug 330781

Application: plasma-desktop (4.11.3)
KDE Platform Version: 4.11.3
Qt Version: 4.8.4
Operating System: Linux 3.11.0-12-generic x86_64
Distribution: Linux Mint 16 Petra

-- Information about the crash:
- What I was doing when the application crashed: Clicked on icon to safely remove the USB that was being used, and Plasma crashed.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f22e743f7c0 (LWP 1831))]

Thread 13 (Thread 0x7f22bf696700 (LWP 1834)):
#0  QThreadData::current () at thread/qthread_unix.cpp:238
#1  0x00007f22e38ef981 in postEventSourcePrepare (s=0x7f22b80012d0, timeout=0x7f22bf695bb4) at kernel/qeventdispatcher_glib.cpp:256
#2  0x00007f22da082d4d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f22da0835c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f22da0837ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f22e38efa76 in QEventDispatcherGlib::processEvents (this=0x7f22b80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f22e38c15ef in QEventLoop::processEvents (this=this@entry=0x7f22bf695d70, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f22e38c18e5 in QEventLoop::exec (this=this@entry=0x7f22bf695d70, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f22e37c088f in QThread::exec (this=this@entry=0x2030a10) at thread/qthread.cpp:542
#9  0x00007f22e38a2d13 in QInotifyFileSystemWatcherEngine::run (this=0x2030a10) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007f22e37c2f2f in QThreadPrivate::start (arg=0x2030a10) at thread/qthread_unix.cpp:338
#11 0x00007f22da78df6e in start_thread (arg=0x7f22bf696700) at pthread_create.c:311
#12 0x00007f22e6d239cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 12 (Thread 0x7f22bee95700 (LWP 1835)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f22e00d606b in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f22e00d60a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f22da78df6e in start_thread (arg=0x7f22bee95700) at pthread_create.c:311
#4  0x00007f22e6d239cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 11 (Thread 0x7f22bcdde700 (LWP 1836)):
#0  0x00007f22da082d2b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f22da0835c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f22da0837ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f22e38efa76 in QEventDispatcherGlib::processEvents (this=0x7f22300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f22e38c15ef in QEventLoop::processEvents (this=this@entry=0x7f22bcdddd70, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f22e38c18e5 in QEventLoop::exec (this=this@entry=0x7f22bcdddd70, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f22e37c088f in QThread::exec (this=this@entry=0x1b1b8b0) at thread/qthread.cpp:542
#7  0x00007f22e38a2d13 in QInotifyFileSystemWatcherEngine::run (this=0x1b1b8b0) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f22e37c2f2f in QThreadPrivate::start (arg=0x1b1b8b0) at thread/qthread_unix.cpp:338
#9  0x00007f22da78df6e in start_thread (arg=0x7f22bcdde700) at pthread_create.c:311
#10 0x00007f22e6d239cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 10 (Thread 0x7f2236733700 (LWP 1838)):
#0  0x00007f22e6d16f7d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f22da0836a4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f22da083b0a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2237222b66 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f22da0a80f5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f22da78df6e in start_thread (arg=0x7f2236733700) at pthread_create.c:311
#6  0x00007f22e6d239cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 9 (Thread 0x7f221ffff700 (LWP 3867)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f22e37c3406 in wait (time=18446744073709551615, this=0x243cc10) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x24e7858, mutex=0x23ec9d0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f22df34ee6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x24e7830, th=0x436ace0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f22df351903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x23f1ae0, th=0x436ace0, previous=0x3508b90) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f22df35061f in ThreadWeaver::Thread::run (this=0x436ace0) at ../../../threadweaver/Weaver/Thread.cpp:98
#6  0x00007f22e37c2f2f in QThreadPrivate::start (arg=0x436ace0) at thread/qthread_unix.cpp:338
#7  0x00007f22da78df6e in start_thread (arg=0x7f221ffff700) at pthread_create.c:311
#8  0x00007f22e6d239cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 8 (Thread 0x7f222a31c700 (LWP 3868)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f22e37c3406 in wait (time=18446744073709551615, this=0x243cc10) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x24e7858, mutex=0x23ec9d0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f22df34ee6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x24e7830, th=0x1ad62f0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f22df351903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x23f1ae0, th=0x1ad62f0, previous=0x1b1d480) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f22df35061f in ThreadWeaver::Thread::run (this=0x1ad62f0) at ../../../threadweaver/Weaver/Thread.cpp:98
#6  0x00007f22e37c2f2f in QThreadPrivate::start (arg=0x1ad62f0) at thread/qthread_unix.cpp:338
#7  0x00007f22da78df6e in start_thread (arg=0x7f222a31c700) at pthread_create.c:311
#8  0x00007f22e6d239cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 7 (Thread 0x7f2236f34700 (LWP 3869)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f22e37c3406 in wait (time=18446744073709551615, this=0x243cc10) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x24e7858, mutex=0x23ec9d0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f22df34ee6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x24e7830, th=0x34c27a0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f22df351903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x23f1ae0, th=0x34c27a0, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f22df35191c in ThreadWeaver::WorkingHardState::applyForWork (this=0x23f1ae0, th=0x34c27a0, previous=0x2e30660) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x00007f22df35061f in ThreadWeaver::Thread::run (this=0x34c27a0) at ../../../threadweaver/Weaver/Thread.cpp:98
#7  0x00007f22e37c2f2f in QThreadPrivate::start (arg=0x34c27a0) at thread/qthread_unix.cpp:338
#8  0x00007f22da78df6e in start_thread (arg=0x7f2236f34700) at pthread_create.c:311
#9  0x00007f22e6d239cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 6 (Thread 0x7f221dd85700 (LWP 3870)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f22e37c3406 in wait (time=18446744073709551615, this=0x243cc10) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x24e7858, mutex=0x23ec9d0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f22df34ee6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x24e7830, th=0x3586bd0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f22df351903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x23f1ae0, th=0x3586bd0, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f22df35191c in ThreadWeaver::WorkingHardState::applyForWork (this=0x23f1ae0, th=0x3586bd0, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x00007f22df35191c in ThreadWeaver::WorkingHardState::applyForWork (this=0x23f1ae0, th=0x3586bd0, previous=0x48523e0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#7  0x00007f22df35061f in ThreadWeaver::Thread::run (this=0x3586bd0) at ../../../threadweaver/Weaver/Thread.cpp:98
#8  0x00007f22e37c2f2f in QThreadPrivate::start (arg=0x3586bd0) at thread/qthread_unix.cpp:338
#9  0x00007f22da78df6e in start_thread (arg=0x7f221dd85700) at pthread_create.c:311
#10 0x00007f22e6d239cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 5 (Thread 0x7f221d584700 (LWP 3871)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f22e37c3406 in wait (time=18446744073709551615, this=0x243cc10) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x24e7858, mutex=0x23ec9d0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f22df34ee6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x24e7830, th=0x35a3fe0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f22df351903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x23f1ae0, th=0x35a3fe0, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f22df35191c in ThreadWeaver::WorkingHardState::applyForWork (this=0x23f1ae0, th=0x35a3fe0, previous=0x2186c00) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x00007f22df35061f in ThreadWeaver::Thread::run (this=0x35a3fe0) at ../../../threadweaver/Weaver/Thread.cpp:98
#7  0x00007f22e37c2f2f in QThreadPrivate::start (arg=0x35a3fe0) at thread/qthread_unix.cpp:338
#8  0x00007f22da78df6e in start_thread (arg=0x7f221d584700) at pthread_create.c:311
#9  0x00007f22e6d239cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7f220bdef700 (LWP 3872)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f22e37c3406 in wait (time=18446744073709551615, this=0x243cc10) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x24e7858, mutex=0x23ec9d0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f22df34ee6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x24e7830, th=0x2e0b5e0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f22df351903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x23f1ae0, th=0x2e0b5e0, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f22df35191c in ThreadWeaver::WorkingHardState::applyForWork (this=0x23f1ae0, th=0x2e0b5e0, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x00007f22df35191c in ThreadWeaver::WorkingHardState::applyForWork (this=0x23f1ae0, th=0x2e0b5e0, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#7  0x00007f22df35061f in ThreadWeaver::Thread::run (this=0x2e0b5e0) at ../../../threadweaver/Weaver/Thread.cpp:98
#8  0x00007f22e37c2f2f in QThreadPrivate::start (arg=0x2e0b5e0) at thread/qthread_unix.cpp:338
#9  0x00007f22da78df6e in start_thread (arg=0x7f220bdef700) at pthread_create.c:311
#10 0x00007f22e6d239cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f220b5ee700 (LWP 3873)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f22e37c3406 in wait (time=18446744073709551615, this=0x243cc10) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x24e7858, mutex=0x23ec9d0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f22df34ee6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x24e7830, th=0x459e930) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f22df351903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x23f1ae0, th=0x459e930, previous=0x3d4da90) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f22df35061f in ThreadWeaver::Thread::run (this=0x459e930) at ../../../threadweaver/Weaver/Thread.cpp:98
#6  0x00007f22e37c2f2f in QThreadPrivate::start (arg=0x459e930) at thread/qthread_unix.cpp:338
#7  0x00007f22da78df6e in start_thread (arg=0x7f220b5ee700) at pthread_create.c:311
#8  0x00007f22e6d239cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f220aded700 (LWP 3874)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f22e37c3406 in wait (time=18446744073709551615, this=0x243cc10) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x24e7858, mutex=0x23ec9d0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f22df34ee6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x24e7830, th=0x3ff6da0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f22df351903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x23f1ae0, th=0x3ff6da0, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f22df35191c in ThreadWeaver::WorkingHardState::applyForWork (this=0x23f1ae0, th=0x3ff6da0, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x00007f22df35191c in ThreadWeaver::WorkingHardState::applyForWork (this=0x23f1ae0, th=0x3ff6da0, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#7  0x00007f22df35061f in ThreadWeaver::Thread::run (this=0x3ff6da0) at ../../../threadweaver/Weaver/Thread.cpp:98
#8  0x00007f22e37c2f2f in QThreadPrivate::start (arg=0x3ff6da0) at thread/qthread_unix.cpp:338
#9  0x00007f22da78df6e in start_thread (arg=0x7f220aded700) at pthread_create.c:311
#10 0x00007f22e6d239cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f22e743f7c0 (LWP 1831)):
[KCrash Handler]
#6  0x00007f22e54be334 in QDeclarativeItem::~QDeclarativeItem (this=0x4476c70, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#7  0x00007f22e5485e96 in ~QDeclarativeElement (this=0x4476c70, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#8  QDeclarativePrivate::QDeclarativeElement<QDeclarativeItem>::~QDeclarativeElement (this=0x4476c70, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#9  0x00007f22e38dae08 in QObject::event (this=0x4476c70, e=<optimized out>) at kernel/qobject.cpp:1175
#10 0x00007f22e2c5fdfc in QApplicationPrivate::notify_helper (this=this@entry=0x198b630, receiver=receiver@entry=0x4476c70, e=e@entry=0x2d626f0) at kernel/qapplication.cpp:4567
#11 0x00007f22e2c66470 in QApplication::notify (this=this@entry=0x196d4e0, receiver=receiver@entry=0x4476c70, e=e@entry=0x2d626f0) at kernel/qapplication.cpp:4353
#12 0x00007f22e4586a6a in KApplication::notify (this=0x196d4e0, receiver=0x4476c70, event=0x2d626f0) at ../../kdeui/kernel/kapplication.cpp:311
#13 0x00007f22e38c28bd in QCoreApplication::notifyInternal (this=0x196d4e0, receiver=receiver@entry=0x4476c70, event=event@entry=0x2d626f0) at kernel/qcoreapplication.cpp:946
#14 0x00007f22e38c5e1f in sendEvent (event=0x2d626f0, receiver=0x4476c70) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#15 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x18f41f0) at kernel/qcoreapplication.cpp:1570
#16 0x00007f22e38c62c3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#17 0x00007f22e38f0073 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#18 postEventSourceDispatch (s=0x196e520) at kernel/qeventdispatcher_glib.cpp:279
#19 0x00007f22da0833b6 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f22da083708 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f22da0837ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f22e38efa55 in QEventDispatcherGlib::processEvents (this=0x18f5ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#23 0x00007f22e2d019d6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007f22e38c15ef in QEventLoop::processEvents (this=this@entry=0x7fff3a579760, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007f22e38c18e5 in QEventLoop::exec (this=this@entry=0x7fff3a579760, flags=...) at kernel/qeventloop.cpp:204
#26 0x00007f22e38c6e5b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#27 0x00007f22e2c5e34c in QApplication::exec () at kernel/qapplication.cpp:3828
#28 0x00007f22e702d27c in kdemain (argc=1, argv=0x7fff3a5799b8) at ../../../../plasma/desktop/shell/main.cpp:126
#29 0x00007f22e6c4ade5 in __libc_start_main (main=0x4006e0 <main(int, char**)>, argc=1, ubp_av=0x7fff3a5799b8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff3a5799a8) at libc-start.c:260
#30 0x000000000040070e in _start ()

Possible duplicates by query: bug 330481, bug 330395, bug 329968, bug 329657, bug 328331.

Reported using DrKonqi