** No longer affects: media-hub (Ubuntu)
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https://bugs.launchpad.net/bugs/1364353
Title:
unity8 leaking memory on idle phone
Status in Qt integration with the Mir display server:
New
Status in “qtmir” package in Ubuntu:
New
Status in “unity8” package in Ubuntu:
New
Bug description:
I've found that on an idle phone, unity8 is very slowly consuming more
heap at around 1K every 15-20 minutes. I ran my analysis over 12
hours and found that there are brk()s occurring roughly every 10
minutes and the heap is just increasing in size and never shrinking,
indicating a small memory leak.
gdb shows:
(gdb) where
#0 __brk (addr=0x31fa000) at ../ports/sysdeps/unix/sysv/linux/arm/brk.c:28
#1 0xb6298826 in __GI___sbrk (increment=135168) at sbrk.c:53
#2 0xb626209a in __GI___default_morecore (increment=<optimized out>)
at morecore.c:47
#3 0xb625f1e2 in sysmalloc (av=0xb62f54e8 <main_arena>, nb=72)
at malloc.c:2462
#4 _int_malloc (av=av@entry=0xb62f54e8 <main_arena>, bytes=bytes@entry=64)
at malloc.c:3800
#5 0xb6260576 in __GI___libc_malloc (bytes=64) at malloc.c:2891
#6 0xb636d0f4 in operator new(unsigned int) ()
from /usr/lib/arm-linux-gnueabihf/libstdc++.so.6
#7 0xa92c2b42 in
core::dbus::Message::Reader::Reader(std::shared_ptr<core::dbus::Message>
const&) () from /usr/lib/arm-linux-gnueabihf/libdbus-cpp.so.4
#8 0xa92c2cc0 in core::dbus::Message::Reader::pop_variant() ()
from /usr/lib/arm-linux-gnueabihf/libdbus-cpp.so.4
#9 0xa9356a98 in
core::dbus::Codec<core::dbus::types::Variant>::decode_argument(core::dbus::Message::Reader&,
core::dbus::types::Variant&) ()
from /usr/lib/arm-linux-gnueabihf/libmedia-hub-client.so.1
#10 0xa9374608 in core::dbus::Result<core::dbus::types::TypedVariant<unsigned
long long> >::from_message(std::shared_ptr<core::dbus::Message> const&) ()
from /usr/lib/arm-linux-gnueabihf/libmedia-hub-client.so.1
#11 0xa937484c in core::dbus::Result<core::dbus::types::TypedVariant<unsigned
long long> >
core::dbus::Object::invoke_method_synchronously<core::dbus::interface---Type
<return> to continue, or q <return> to quit---
s::Properties::Get, core::dbus::types::TypedVariant<unsigned long long>,
std::string, std::string>(std::string const&, std::string const&) ()
from /usr/lib/arm-linux-gnueabihf/libmedia-hub-client.so.1
#12 0xa9374a98 in
core::dbus::Property<mpris::Player::Properties::Position>::get() const () from
/usr/lib/arm-linux-gnueabihf/libmedia-hub-client.so.1
#13 0xa93c6f66 in AalMediaPlayerService::position() const ()
from
/usr/lib/arm-linux-gnueabihf/qt5/plugins/mediaservice/libaalmediaplayer.so
#14 0xaaae6332 in QMediaPlayer::qt_metacall(QMetaObject::Call, int, void**) ()
from /usr/lib/arm-linux-gnueabihf/libQt5Multimedia.so.5
#15 0xb65ac518 in QMetaProperty::read(QObject const*) const ()
from /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5
#16 0xaaaba3e2 in ?? () from
/usr/lib/arm-linux-gnueabihf/libQt5Multimedia.so.5
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
and also:
(gdb) where
#0 __brk (addr=0x31d9000) at ../ports/sysdeps/unix/sysv/linux/arm/brk.c:28
#1 0xb6298826 in __GI___sbrk (increment=135168) at sbrk.c:53
#2 0xb626209a in __GI___default_morecore (increment=<optimized out>)
at morecore.c:47
#3 0xb625f1e2 in sysmalloc (av=0xb62f54e8 <main_arena>, nb=128)
at malloc.c:2462
#4 _int_malloc (av=av@entry=0xb62f54e8 <main_arena>, bytes=bytes@entry=120)
at malloc.c:3800
#5 0xb6260576 in __GI___libc_malloc (bytes=120) at malloc.c:2891
#6 0xb636d0f4 in operator new(unsigned int) ()
from /usr/lib/arm-linux-gnueabihf/libstdc++.so.6
#7 0xb3f13224 in mir::scene::BasicSurface::compositor_snapshot(void const*)
const () from /usr/lib/arm-linux-gnueabihf/libmirserver.so.24
#8 0xad14caba in qtmir::MirSurfaceItem::dropPendingBuffers() ()
from
/usr/lib/arm-linux-gnueabihf/qt5/qml/Unity/Application/libunityapplicationplugin.so
#9 0xb65c4274 in QMetaObject::activate(QObject*, int, int, void**) ()
from /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5
#10 0xb65cca36 in QTimer::timerEvent(QTimerEvent*) ()
from /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5
#11 0xb65c4eca in QObject::event(QEvent*) ()
from /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5
#12 0xb65a4f92 in QCoreApplication::notify(QObject*, QEvent*) ()
---Type <return> to continue, or q <return> to quit---
from /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5
#13 0xb65a4d88 in QCoreApplication::notifyInternal(QObject*, QEvent*) ()
from /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5
#14 0xb65de45a in QTimerInfoList::activateTimers() ()
from /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5
#15 0xb65de70c in ?? () from /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5
#16 0xb5dbbf50 in g_main_context_dispatch ()
from /lib/arm-linux-gnueabihf/libglib-2.0.so.0
#17 0xb5dbc0fc in ?? () from /lib/arm-linux-gnueabihf/libglib-2.0.so.0
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