It's been happening on my laptop since 13.04, and the reason was and still is (on 14.04) opening Nautilus on a Folder that contains either Photos and/or Videos, and once the Thumbnails are shown, then my i7 CPU feels like it's burning, really burning and the fan wants to fly, the hud-service goes crazy consuming both the CPU resources and the memory, which goes up to 1.7GB in no time. Surely it's a memory leak sort of thing.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to hud in Ubuntu. https://bugs.launchpad.net/bugs/1300722 Title: hud-service is eating up 100% of one of my CPUs in a poll loop Status in Unity HUD: Confirmed Status in “hud” package in Ubuntu: In Progress Bug description: hud-service is polling like crazy: Context Switches: PID Process Voluntary Involuntary Total Ctxt Sw/Sec Ctxt Sw/Sec Ctxt Sw/Sec 2295 hud-service 46084.63 42.94 46127.58 (very high) 2325 hud-service 0.09 0.00 0.09 (very low) 2329 hud-service 0.07 0.00 0.07 (very low) 2340 hud-service 0.05 0.00 0.05 (very low) Total 46084.84 42.94 46127.78 File I/O operations: No file I/O operations detected. System calls traced: PID Process Syscall Count Rate/Sec 2295 hud-service poll 999983 23124.8503 2295 hud-service write 10 0.2313 2295 hud-service sendmsg 4 0.0925 2325 hud-service restart_syscall 1 0.0231 2329 hud-service restart_syscall 1 0.0231 2340 hud-service restart_syscall 1 0.0231 Total 1000000 23125.2435 (gdb) where #0 0x00007fda8121cfbd in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007fda7f1bb4b8 in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3 #2 0x00007fda7f1ba3ff in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3 #3 0x00007fda7f1a49dc in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3 #4 0x00007fda7f1a5464 in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3 #5 0x00007fda82ce9e65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5 #6 0x00007fda82d2fc64 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5 #7 0x00007fda82d30582 in QDBusPendingCallWatcher::waitForFinished() () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5 #8 0x00007fda83eb940b in DBusMenuImporter::slotMenuAboutToShow() () from /usr/lib/x86_64-linux-gnu/libdbusmenu-qt5.so.2 #9 0x00007fda8435d2a6 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #10 0x000000000045ab3f in hud::service::DBusMenuCollector::openMenu(QMenu*, unsigned int&) () #11 0x000000000045abd8 in hud::service::DBusMenuCollector::openMenu(QMenu*, unsigned int&) () #12 0x000000000045abd8 in hud::service::DBusMenuCollector::openMenu(QMenu*, unsigned int&) () #13 0x000000000045abd8 in hud::service::DBusMenuCollector::openMenu(QMenu*, unsigned int&) () #14 0x000000000045abd8 in hud::service::DBusMenuCollector::openMenu(QMenu*, unsigned int&) () #15 0x000000000045abd8 in hud::service::DBusMenuCollector::openMenu(QMenu*, unsigned int&) () #16 0x000000000045ae8d in hud::service::DBusMenuCollector::activate() () #17 0x0000000000441e43 in hud::service::WindowImpl::activate() () #18 0x0000000000439f6a in hud::service::QueryImpl::updateToken(QSharedPointer<hud::service::Window>) () #19 0x000000000043a672 in hud::service::QueryImpl::refresh() () #20 0x000000000044b115 in ?? () #21 0x00007fda8435d2a6 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #22 0x000000000045662a in hud::service::ApplicationListImpl::FocusedWindowChanged(unsigned int, QString const&, unsigned int) () #23 0x00007fda8435d2a6 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #24 0x0000000000467361 in ComCanonicalUnityWindowStackInterface::FocusedWindowChanged(unsigned int, QString const&, unsigned int) () #25 0x00000000004678bd in ?? () #26 0x0000000000467c63 in ComCanonicalUnityWindowStackInterface::qt_metacall(QMetaObject::Call, int, void**) () #27 0x00007fda82cf180f in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5 #28 0x00007fda8435e22e in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #29 0x00007fda823d5c2c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #30 0x00007fda823dadf6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #31 0x00007fda84335c2d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #32 0x00007fda84337e07 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #33 0x00007fda84382cd3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #34 0x00007fda833dbe04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #35 0x00007fda833dc048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: hud 13.10.1+14.04.20140326-0ubuntu1 ProcVersionSignature: Ubuntu 3.13.0-20.42-generic 3.13.7 Uname: Linux 3.13.0-20-generic x86_64 ApportVersion: 2.14-0ubuntu1 Architecture: amd64 CurrentDesktop: Unity Date: Tue Apr 1 12:23:11 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-03-25 (7 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140323) SourcePackage: hud UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/hud/+bug/1300722/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
