MacBook wyłącza się, problem z pamięcią?

Bardzo proszę o pomoc,
Jakiś czas temu, jeszcze przed aktualizacją do Mavericksa mój MacBook (Unibody, późny 2009) bardzo spowolnił. Po wymianie pamięci (z 2 GB do 8 GB) na początku działał świetnie, teraz, po kilku miesiącach praca na nim jest zdecydowanie utrudniona. Na przykład przy otwartym Safari i włączonym Parallels komputer bardzo długo uruchamia inne programy i często się “wiesza”. Po “uśpieniu” bardzo długo “dochodzi do siebie” - ostatnio kilka razy samoczynnie zresetował się w czasie pracy.

Bardzo prosiłabym o pomoc co zrobić - czy to kwestia pamięci (może zmniejszyć do “oficjalnych” 4 GB?), czy może czegoś zupełnie innego?

Poniżej wklejam raport:

Sun Jul 13 15:36:21 2014
panic(cpu 1 caller 0xffffff800a8c5490): "Possible memory corruption: pmap_pv_remove(0xffffff801f481860, 0x108b26000, 0x1b00f9, 0x80000001b00f9066, 0xffffff80e62c3b34, 0xfffffead67723930): pv not on hash, head: 0xffffff801d9c0248, 0x15b858000"@/SourceCache/xnu/xnu-2422.100.13/osfmk/i386/pmap_internal.h:836
Backtrace (CPU 1), Frame : Return Address
0xffffff80e62c3a00 : 0xffffff800a822fa9
0xffffff80e62c3a80 : 0xffffff800a8c5490
0xffffff80e62c3b60 : 0xffffff800a8c5db7
0xffffff80e62c3bc0 : 0xffffff800a87e0ca
0xffffff80e62c3cd0 : 0xffffff800a88239f
0xffffff80e62c3d00 : 0xffffff800a83da13
0xffffff80e62c3d40 : 0xffffff800abce89e
0xffffff80e62c3db0 : 0xffffff800abe222d
0xffffff80e62c3e40 : 0xffffff800abe25a7
0xffffff80e62c3e80 : 0xffffff800a820b6b
0xffffff80e62c3eb0 : 0xffffff800a8dc593
0xffffff80e62c3ed0 : 0xffffff800a8f3422

BSD process name corresponding to current thread: com.apple.WebKit

Mac OS version:
13D65

Kernel version:
Darwin Kernel Version 13.2.0: Thu Apr 17 23:03:13 PDT 2014; root:xnu-2422.100.13~1/RELEASE_X86_64
Kernel UUID: ADD73AE6-88B0-32FB-A8BB-4F7C8BE4092E
Kernel slide:     0x000000000a600000
Kernel text base: 0xffffff800a800000
System model name: MacBook6,1 (Mac-F22C8AC8)

System uptime in nanoseconds: 2387577182761
last loaded kext at 1700073680823: com.apple.driver.AppleIntelMCEReporter	104 (addr 0xffffff7f8cba0000, size 49152)
last unloaded kext at 1898202332432: com.apple.driver.AppleIntelMCEReporter	104 (addr 0xffffff7f8cba0000, size 32768)
loaded kexts:
com.apple.filesystems.smbfs	2.0.2
com.apple.driver.AudioAUUC	1.60
com.apple.driver.AppleHWSensor	1.9.5d0
com.apple.driver.AGPM	100.14.15
com.apple.filesystems.autofs	3.0
com.apple.driver.AppleMikeyHIDDriver	124
com.apple.driver.AppleHDA	2.6.1f2
com.apple.driver.AppleMikeyDriver	2.6.1f2
com.apple.GeForceTesla	8.2.4
com.apple.driver.AppleUpstreamUserClient	3.5.13
com.apple.iokit.IOUserEthernet	1.0.0d1
com.apple.iokit.IOBluetoothSerialManager	4.2.4f1
com.apple.Dont_Steal_Mac_OS_X	7.0.0
com.apple.driver.AppleHWAccess	1
com.apple.driver.AppleBacklight	170.3.5
com.apple.driver.AppleMCCSControl	1.1.12
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport	4.2.4f1
com.apple.driver.ACPI_SMC_PlatformPlugin	1.0.0
com.apple.driver.AppleLPC	1.7.0
com.apple.driver.SMCMotionSensor	3.0.4d1
com.apple.driver.AppleUSBTCButtons	240.2
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless	1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib	1.0.0d1
com.apple.BootCache	35
com.apple.driver.AppleUSBTCKeyboard	240.2
com.apple.iokit.SCSITaskUserClient	3.6.6
com.apple.driver.XsanFilter	404
com.apple.iokit.IOAHCIBlockStorage	2.5.1
com.apple.driver.AirPort.Brcm4331	700.20.22
com.apple.driver.AppleSmartBatteryManager	161.0.0
com.apple.driver.AppleAHCIPort	3.0.0
com.apple.nvenet	2.0.21
com.apple.driver.AppleUSBHub	666.4.0
com.apple.driver.AppleUSBEHCI	660.4.0
com.apple.driver.AppleUSBOHCI	656.4.1
com.apple.driver.AppleRTC	2.0
com.apple.driver.AppleHPET	1.8
com.apple.driver.AppleACPIButtons	2.0
com.apple.driver.AppleSMBIOS	2.1
com.apple.driver.AppleACPIEC	2.0
com.apple.driver.AppleAPIC	1.7
com.apple.driver.AppleIntelCPUPowerManagementClient	217.92.1
com.apple.nke.applicationfirewall	153
com.apple.security.quarantine	3
com.apple.driver.AppleIntelCPUPowerManagement	217.92.1
com.apple.AppleGraphicsDeviceControl	3.5.26
com.apple.kext.triggers	1.0
com.apple.driver.DspFuncLib	2.6.1f2
com.apple.vecLib.kext	1.0.0
com.apple.iokit.IOAudioFamily	1.9.7fc2
com.apple.kext.OSvKernDSPLib	1.14
com.apple.nvidia.classic.NVDANV50HalTesla	8.2.4
com.apple.nvidia.classic.NVDAResmanTesla	8.2.4
com.apple.iokit.IOSurface	91.1
com.apple.iokit.IOSerialFamily	10.0.7
com.apple.iokit.IOBluetoothFamily	4.2.4f1
com.apple.driver.AppleBacklightExpert	1.0.4
com.apple.driver.AppleSMBusController	1.0.11d1
com.apple.iokit.IOBluetoothHostControllerUSBTransport	4.2.4f1
com.apple.driver.AppleHDAController	2.6.1f2
com.apple.iokit.IOHDAFamily	2.6.1f2
com.apple.driver.IOPlatformPluginLegacy	1.0.0
com.apple.driver.AppleSMBusPCI	1.0.12d1
com.apple.driver.IOPlatformPluginFamily	5.7.0d11
com.apple.iokit.IONDRVSupport	2.4.1
com.apple.iokit.IOGraphicsFamily	2.4.1
com.apple.driver.AppleSMC	3.1.8
com.apple.driver.AppleUSBMultitouch	240.9
com.apple.iokit.IOUSBHIDDriver	660.4.0
com.apple.driver.AppleUSBMergeNub	650.4.0
com.apple.driver.AppleUSBComposite	656.4.1
com.apple.iokit.IOSCSIMultimediaCommandsDevice	3.6.6
com.apple.iokit.IOBDStorageFamily	1.7
com.apple.iokit.IODVDStorageFamily	1.7.1
com.apple.iokit.IOCDStorageFamily	1.7.1
com.apple.iokit.IOAHCISerialATAPI	2.6.1
com.apple.iokit.IOSCSIArchitectureModelFamily	3.6.6
com.apple.iokit.IO80211Family	630.35
com.apple.iokit.IOAHCIFamily	2.6.5
com.apple.iokit.IONetworkingFamily	3.2
com.apple.iokit.IOUSBUserClient	660.4.2
com.apple.driver.AppleEFINVRAM	2.0
com.apple.driver.AppleEFIRuntime	2.0
com.apple.iokit.IOUSBFamily	677.4.0
com.apple.driver.NVSMU	2.2.9
com.apple.iokit.IOHIDFamily	2.0.0
com.apple.iokit.IOSMBusFamily	1.1
com.apple.security.sandbox	278.11
com.apple.kext.AppleMatch	1.0.0d1
com.apple.security.TMSafetyNet	7
com.apple.driver.AppleKeyStore	2
com.apple.driver.DiskImages	371.1
com.apple.iokit.IOStorageFamily	1.9
com.apple.iokit.IOReportFamily	23
com.apple.driver.AppleFDEKeyStore	28.30
com.apple.driver.AppleACPIPlatform	2.0
com.apple.iokit.IOPCIFamily	2.9
com.apple.iokit.IOACPIFamily	1.4
com.apple.kec.pthread	1
com.apple.kec.corecrypto	1.0
Model: MacBook6,1, BootROM MB61.00C8.B00, 2 processors, Intel Core 2 Duo, 2.26 GHz, 8 GB, SMC 1.51f53
Graphics: NVIDIA GeForce 9400M, NVIDIA GeForce 9400M, PCI, 256 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1333 MHz, 0x0198, 0x534E593133333344335339454C432F344720
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1333 MHz, 0x802C, 0x31364A53463531323634485A2D3147344431
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x93), Broadcom BCM43xx 1.0 (5.106.98.100.22)
Bluetooth: Version 4.2.4f1 13674, 3 services, 15 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: WDC WD3200BPVT-00JJ5T0, 320,07 GB
Serial ATA Device: MATSHITADVD-R   UJ-898
USB Device: Built-in iSight
USB Device: Apple Internal Keyboard / Trackpad
USB Device: BRCM2070 Hub
USB Device: Bluetooth USB Host Controller
Thunderbolt Bus:

W logu “Possible memory corruption”. Zacznij od przełożenia kości miejscami, potestuj na tylko jednej włożonej itp. Wygląda, jakby jedna (przynajmniej, ale nie zapeszajmy) walnęła.