Huge memory leak - Simple to reproduce

I have an application that updates the display from time to time using a timer, and I run the application it comsumes more in addition to memory. After some effort I reduced to a very simple scenario:

The following code creates a matrix of 40 x 30 of objects that extend UIComponent (the same problem exists if I extend Sprite). A timer goes off every 3 seconds and repainted every object with a color at random on updateDisplayList(). This running (the Flex IDE or swf) produced an infinitely growing memory leak, even if no new memory must be allocated to each event of the timer. I see an increase of about .5MB to 1 MB to each call. The explicit gc() call (which I know I shouldn't) does not help. I'm using Flex Builder 3.

What Miss me? Is this a known bug? Any comments would be greatly appreciated.

<? XML version = "1.0"? >
"< mx:Application xmlns:mx ="http://www.adobe.com/2006/mxml"applicationComplete ="startUp ()"; horizontalAlign ="left">

< mx:Script >
<! [CDATA]

private var _myUIObjects:Array = new Array();

private var _timer:Timer = new Timer (3000);

private function start (): void
{
var myUIObject:MyUIObject;

for (var i: int = 0; i < 1200; i ++) {}
myUIObject = new MyUIObject();
_myUIObjects.push (myUIObject);
canvas.addChild (myUIObject);
}

for (var iRow:int = 0; iRow < 30; iRow ++) {}
for (var iCol:int = 0; iCol < 40; iCol ++) {}
myUIObject = _myUIObjects [iRow * iCol + 40];
iCol = myUIObject.x * 18.
myUIObject.y = iRow * 18.
myUIObject.width = 15;
myUIObject.height = 15;
}
}

_Timer.addEventListener (TimerEvent.TIMER, handle_timer);
_Timer.start ();
}

private void handle_timer(event:Event):void
{
for (var i: int = 0; i < 1200; i ++) {}
MyUIObject(_myUIObjects[i]).invalidateDisplayList ();
}
}
[]] >
< / mx:Script >

< mx:Canvas id = "canvas" width = "1000" height = "1000" / >

< / mx:Application >

package
{
Import mx.core.UIComponent;

SerializableAttribute public class MyUIObject extends UIComponent
{
Protected Overrides function updateDisplayList(unscaledWidth:Number,_unscaledHeight:Number):void
{
this.graphics.beginFill (Math.random () * 500000);
this.graphics.drawRect (0,0,15,15);
}
}
}

You are missing a call to clear.  Your code is actually adding

another fill on top of pre-existing fills.

Tags: Flex

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    This can be very long process you would need to install a system of fees will need to check the memory leak after each installation of driver or another application

  • My Macbook Pro reboots after a memory leak every two hours

    Hey everybody. I'm having a problem with my MacBook Pro (retina, mid-2012), where he is recovering in market (usually after gel). In this case only (so far) while using Adobe Illustrator CC 2015 (to date). I also use a Wacom tablet (intuos 4, with latest drivers), drawing, which can also be the culprit.

    This happened with Yosemite, so I had upgraded to El Capitan - that does not solve the problem.

    I apologize if the problem is with myself! I get that this problem is probably the fault of Wacom, Adobe or myself - I just want to see what you think Mac-heads.

    Thanks a lot, a lot in advance for any advice - I appreciate any help I can get.

    The report I get, when restarting is as follows:

    Mon 4 Jan 20:19:13 2016

    Panic report *.

    panic (the appellant UC 7 0xffffff802d928e44): "zalloc: map of exhausted area during the allocation of the buf.8192 area, probably because of the memory leak in the area kalloc.512 (1063772160 bytes, 2076706 elements allocated)"@/Library/Caches/com.apple.xbs/Sources/xnu/xnu-3247.1.106/osfmk/kern /zalloc.c:2543.

    Backtrace (CPU 7), Frame: Return address

    0xffffff813887b150: 0xffffff802d8e5357

    0xffffff813887b1d0: 0xffffff802d928e44

    0xffffff813887b300: 0xffffff802daea851

    0xffffff813887b330: 0xffffff802dae8f19

    0xffffff813887b380: 0xffffff802dae8a23

    0xffffff813887b450: 0xffffff802daea040

    0xffffff813887b4b0: 0xffffff802dcf76fb

    0xffffff813887b520: 0xffffff802dd4cdfb

    0xffffff813887b5c0: 0xffffff802dd47845

    0xffffff813887b6d0: 0xffffff802dcfe66b

    0xffffff813887bc10: 0xffffff802dd3e695

    0xffffff813887bd20: 0xffffff802db112f2

    0xffffff813887bde0: 0xffffff802db1ce7c

    0xffffff813887bf30: 0xffffff802db11747

    0xffffff813887bf60: 0xffffff802de2ace1

    0xffffff813887bfb0: 0xffffff802d9f4896

    The process corresponding to the current thread BSD name: softwareupdated

    Mac OS version:

    15A 284

    Kernel version:

    Darwin Kernel Version 15.0.0: Wed Sep 26 16:57:32 PDT 2015; root:XNU-3247.1.106~1/RELEASE_X86_64

    Kernel UUID: 37BC582F-8BF4-3F65-AFBB-ECF792060C68

    Slide kernel: 0x000000002d600000

    Text of core base: 0xffffff802d800000

    Text __HIB base: 0xffffff802d700000

    Name of system model: MacBookPro10, 1 (Mac-C3EC7CD22292981F)

    Availability of the system in nanoseconds: 7390442512484

    Area name heart size free size

    VM 146329200 960 items

    machine virtual object hash 24008000 2240 c'entri

    VM 46592000 883520 map entries

    34959024 5424 pv_list

    VM 130327232 8768 pages

    16598128 27424 Kalloc.16

    16876000 21664 Kalloc.32

    77735808 199344 Kalloc.48

    Kalloc.64 37787264 95360

    2136000 5280 Kalloc.80

    Kalloc.96 1729824 67200

    Kalloc.128 130555904 30464

    1941600 135680 Kalloc.160

    133074944 292352 Kalloc.256

    45504 142195392 Kalloc.288

    1063772160 498688 Kalloc.512

    1003634688 2931712 Kalloc.1024

    6909952 24576 Kalloc.2048

    Kalloc.4096 9760768 0

    Kalloc.8192 10452992 0

    9606272-3968 mem_obj_control

    SCHED groups 1270080 36288

    IPC 81922240 150880 ports

    2081376 274480 discussions

    x 86 fpsave State 1411072 233792

    uthreads 1224752 209264

    31705680 2640 nodes

    12949920 4032 namecache

    Node 42278544 72816 HFS

    Fork 8548352 896 HFS

    1109304 1176 decmpfs_cnode

    buf.8192 23584768 0

    ubc_info area 5679696 6600

    vnode pager 2580000 1320 structur

    34320384 44864 compressor_pager

    20094976 5986304 compressor_segment

    The 3653632 kernel stacks

    PageTables 250183680

    Kalloc.Large 166412827

    Backtrace suspected leakage: (bytes pending: 206848)

    0xffffff802d92927f

    0xffffff802de3be0b

    0xffffff7fafdd2718

    0xffffff7fafd724e0

    0xffffff7fafd5e0f6

    0xffffff7fafd635a4

    0xffffff7fafd64578

    0xffffff802dee1657

    0xffffff802d9a0780

    0xffffff802d8e9af3

    0xffffff802d8cd448

    0xffffff802d8dcfc5

    0xffffff802d9c135a

    Extensions of core in backtrace:

    com.apple.iokit.IOAcceleratorFamily2 (203.7.1) [5178DF8C-1F96-3D 87-8BD4-46B996C41 84A]@0xffffff7fafd4e000-> 0xffffff7fafdb9fff

    dependency: com.apple.iokit.IOPCIFamily (2.9) [668E3DEE-F98E-3456-92D6-F4FEEA355A72] @ 7fae12d000 0xffffff

    dependency: com.apple.iokit.IOGraphicsFamily (2.4.1) [48AC8EA9-BD3C-3FDC-908D-09850215AA32] @0 xffffff7fae4a2000

    com.apple.GeForce (10.0.6) [7246A48B-E43B-3AF3-8285-8E793AE55B8C] @0xffffff7fafdc8 000-> 0xffffff7fafe64fff

    dependency: com.apple.iokit.IOPCIFamily (2.9) [668E3DEE-F98E-3456-92D6-F4FEEA355A72] @ 7fae12d000 0xffffff

    dependency: ffff7fae4e9000 @0xff com.apple.iokit.IONDRVSupport (2.4.1) [814A7F4B-03EF-384A-B205-9840F0594421]

    dependency: com.apple.nvidia.driver.NVDAResman (10.0.6) [E177026A-B6F5-30AB-BF87-8ADC4D102278] @0xffffff7fae4ff000

    dependency: com.apple.iokit.IOGraphicsFamily (2.4.1) [48AC8EA9-BD3C-3FDC-908D-09850215AA32] @0 xffffff7fae4a2000

    dependency: com.apple.iokit.IOAcceleratorFamily2 (203.7.1) [5178DF8C-1F96-3D 87-8BD4-46B996C41 84A]@0xffffff7fafd4e000

    last load kext to 510536257340: com.apple.driver.AppleXsanScheme 3 (addr 0xffffff7fb0a11000 size 32768)

    Finally unloaded kext to 584400762104: com.apple.driver.AppleXsanScheme 3 (addr 0xffffff7fb0a11000 size 32768)

    kexts responsible:

    com.apple.driver.AudioAUUC 1.70

    com.apple.driver.AppleHWSensor 1.9.5d0

    com.apple.driver.AGPM 110.20.19

    com.apple.driver.ApplePlatformEnabler 2.5.1d0

    com.apple.driver.X86PlatformShim 1.0.0

    com Apple.filesystems.autofs 3.0

    com.apple.driver.AppleMikeyHIDDriver 124

    com.apple.driver.AppleOSXWatchdog 1

    com.apple.driver.AppleMikeyDriver 272.50

    com Apple.Driver.pmtelemetry 1

    com.apple.driver.AppleHDA 272.50

    com.apple.iokit.IOUserEthernet 1.0.1

    com.apple.iokit.IOBluetoothSerialManager 4.4.0f4

    com.apple.driver.AppleUpstreamUserClient 3.6.1

    com.apple.Dont_Steal_Mac_OS_X 7.0.0

    com.apple.driver.AppleIntelHD4000Graphics 10.0.8

    com.apple.GeForce 10.0.6

    com.apple.driver.AppleHV 1

    com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.4.0f4

    com.apple.driver.AppleSMCPDRC 1.0.0

    com.apple.driver.AppleThunderboltIP 3.0.8

    com.apple.driver.AppleLPC 3.1

    com.apple.driver.AppleSMCLMU 208

    com.apple.driver.AppleMCCSControl 1.2.13

    com.apple.driver.AppleIntelFramebufferCapri 10.0.8

    com.apple.driver.AppleMuxControl 3.11.31

    com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0

    com.apple.driver.AppleUSBTCButtons 245,4

    com.apple.driver.AppleUSBTCKeyboard 245,4

    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0

    com.apple.BootCache 37

    com.apple.iokit.IOAHCIBlockStorage 2.8.0

    com.apple.driver.AppleSDXC 1.7.0

    com.apple.driver.AirPort.Brcm4360 1000.13.1a3

    com.apple.driver.usb.AppleUSBEHCIPCI 1.0.1

    3.1.5 com.apple.driver.AppleAHCIPort

    com.apple.driver.AppleACPIButtons 4.0

    com.apple.driver.AppleSmartBatteryManager 161.0.0

    com.apple.driver.AppleRTC 2.0

    com.apple.driver.AppleHPET 1.8

    com.apple.driver.AppleSMBIOS 2.1

    com.apple.driver.AppleACPIEC 4.0

    com.apple.driver.AppleAPIC 1.7

    com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0

    com Apple.NKE.applicationfirewall 163

    com Apple.Security.Quarantine 3

    com.apple.security.TMSafetyNet 8

    com.apple.driver.AppleIntelCPUPowerManagement 218.0.0

    com.apple.driver.AppleBluetoothHIDKeyboard 181

    com.apple.driver.IOBluetoothHIDDriver 4.4.0f4

    com.apple.driver.AppleHIDKeyboard 181

    com Apple.kext.Triggers 1.0

    com.apple.driver.DspFuncLib 272.50

    com.apple.kext.OSvKernDSPLib 525

    com.apple.iokit.IOSerialFamily 11

    com.apple.iokit.IOSurface 108.0.1

    com.apple.nvidia.driver.NVDAGK100Hal 10.0.6

    com.apple.nvidia.driver.NVDAResman 10.0.6

    com.apple.driver.CoreCaptureResponder 1

    com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.4.0f4

    com.apple.iokit.IOBluetoothFamily 4.4.0f4

    com.apple.driver.AppleHDAController 272.50

    com.apple.iokit.IOHDAFamily 272.50

    com.apple.iokit.IOAudioFamily 203.8

    com.apple.vecLib.kext 1.2.0

    com.apple.driver.AppleSMBusPCI 1.0.14d1

    com.apple.driver.AppleSMBusController 1.0.14d1

    com.apple.iokit.IOAcceleratorFamily2 203.7.1

    com.apple.AppleGraphicsDeviceControl 3.11.31

    com.apple.driver.AppleBacklightExpert 1.1.0

    com.apple.iokit.IONDRVSupport 2.4.1

    com.apple.driver.AppleGraphicsControl 3.11.31

    com.apple.iokit.IOGraphicsFamily 2.4.1

    com.apple.driver.X86PlatformPlugin 1.0.0

    com.apple.driver.AppleSMC 3.1.9

    com.apple.driver.IOPlatformPluginFamily 6.0.0d7

    com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0

    com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.7

    com.apple.driver.AppleUSBMultitouch 250.4

    com.apple.iokit.IOUSBHIDDriver 900.4.1

    com.apple.driver.usb.AppleUSBHostCompositeDevice 1.0.1

    com.apple.driver.usb.AppleUSBHub 1.0.1

    com.apple.driver.CoreStorage 517

    com.apple.driver.AppleThunderboltDPInAdapter 4.1.2

    com.apple.driver.AppleThunderboltDPAdapterFamily 4.1.2

    com.apple.driver.AppleThunderboltPCIDownAdapter 2.0.2

    com.apple.driver.AppleThunderboltNHI 4.0.1

    com.apple.iokit.IOThunderboltFamily 5.0.6

    com.apple.iokit.IO80211Family 1100.23

    com.apple.driver.mDNSOffloadUserClient 1.0.1b8

    com.apple.iokit.IONetworkingFamily 3.2

    com Apple.Driver.corecapture 1.0.4

    com.apple.driver.usb.AppleUSBEHCI 1.0.1

    com.apple.iokit.IOAHCIFamily 2.8.0

    com.apple.driver.usb.AppleUSBXHCIPCI 1.0.1

    com.apple.driver.usb.AppleUSBXHCI 1.0.1

    com.apple.iokit.IOUSBFamily 900.4.1

    com.apple.iokit.IOUSBHostFamily 1.0.1

    com.apple.driver.AppleUSBHostMergeProperties 1.0.1

    com.apple.driver.AppleEFINVRAM 2.0

    com.apple.iokit.IOHIDFamily 2.0.0

    com.apple.driver.AppleEFIRuntime 2.0

    com.apple.iokit.IOSMBusFamily 1.1

    com Apple.Security.sandbox 300.0

    com.apple.kext.AppleMatch 1.0.0d1

    com.apple.driver.AppleKeyStore 2

    com.apple.driver.AppleMobileFileIntegrity 1.0.5

    com.apple.driver.AppleCredentialManager 1.0

    com.apple.driver.DiskImages 414

    com.apple.iokit.IOStorageFamily 2.1

    com.apple.iokit.IOReportFamily 31

    com.apple.driver.AppleFDEKeyStore 28.30

    com.apple.driver.AppleACPIPlatform 4.0

    com.apple.iokit.IOPCIFamily 2.9

    com.apple.iokit.IOACPIFamily 1.4

    com.apple.kec.Libm 1

    com Apple.KEC.pthread 1

    com Apple.KEC.corecrypto 1.0

    Panic report suggests that the issue is in the video/graphis material. Please make an appointment at the Apple Store - Genius Bar store and bring it into service. If you are in the United States or is unable to make an appointment in this way, contact your Apple store.

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