Kernel Panic on Macbook

hello,
last night macbook core 2 duo 2.4ghz got kernel panic. can read it, looks caused graphics card (the integrated one). have posted log below:

code:

sat jan 14 23:14:30 2012  panic(cpu 0 caller 0x2abf6a): kernel trap @ 0x010829bf, type 14=page fault, registers:  cr0: 0x8001003b, cr2: 0x02282868, cr3: 0x00100000, cr4: 0x00000660  eax: 0x00000000, ebx: 0x07c18c00, ecx: 0x010a4e60, edx: 0x00000000  cr2: 0x4a945028, ebp: 0x2fe03be8, esi: 0x4a945000, edi: 0x07c18c00  efl: 0x00010206, eip: 0x010829bf, cs:  0x00000008, ds:  0xffff0010  error code: 0x00000000    backtrace (cpu 0), frame : return address (4 potential args on stack)  0x2fe039e8 : 0x21b837 (0x5dd7fc 0x2fe03a1c 0x223ce1 0x0)   0x2fe03a38 : 0x2abf6a (0x59e3d0 0x10829bf 0xe 0x59e59a)   0x2fe03b18 : 0x2a1a78 (0x2fe03b30 0x7127000 0x2fe03be8 0x10829bf)   0x2fe03b28 : 0x10829bf (0xe 0x48 0x7d90010 0x500010)   0x2fe03be8 : 0x1061669 (0x7c18c00 0x24d4b000 0x2fe03c58 0x1d)   0x2fe03c08 : 0x571dcd (0x7c18c00 0x860134 0x2fe03c58 0x0)   0x2fe03c28 : 0x284f15 (0x7c18c00 0x7d90030 0x1d 0x2fe03c58)   0x2fe03c78 : 0x21dbfc (0x54e0b98 0x53665a0 0x0 0x67c24a8)   0x2fe03cb8 : 0x210a86 (0x54e0b00 0x12 0x2fe03d18 0x20f4ae)   0x2fe03d18 : 0x21e0cb (0x54e0b00 0x10000 0x0 0x210814)   0x2fe03d48 : 0x23ff7b (0x2fe03d6c 0x24 0x5beef94 0x0)   0x2fe03d98 : 0x215256 (0x7d90030 0x1 0x1 0x221eeb)   0x2fe03de8 : 0x215868 (0x4d1302c 0x8407 0x24d07840 0x5c10bb8)   0x2fe03e28 : 0x22ca4d (0x4d1302c 0x65679b0 0x2fe03e78 0x480e5d)   0x2fe03e78 : 0x481892 (0x5c10bb8 0x9 0x2fe03ed8 0x67e5b7c)   0x2fe03ec8 : 0x48d017 (0x587e7e0 0x9 0x0 0x587e8f0)   0x2fe03f38 : 0x48fec0 (0x9 0x0 0x57d38f8 0x4d1302c)   0x2fe03f68 : 0x219432 (0x67e5b7c 0xffffff7f 0x2fe03fc8 0x295cc1)   0x2fe03fa8 : 0x2aacb4 (0xffffffff 0x1 0x2fe03fc8 0x66b2184)   0x2fe03fc8 : 0x2a1976 (0x0 0x0 0xfebf377e 0x66b2184)         kernel extensions in backtrace (with dependencies):           com.apple.driver.appleintelgmax3100(6.3.6)@0x1059000->0x111ffff              dependency: com.apple.iokit.iopcifamily(2.6.5)@0x91b000              dependency: com.apple.iokit.iondrvsupport(2.2.1)@0xdff000              dependency: com.apple.iokit.iographicsfamily(2.2.1)@0xddd000    bsd process name corresponding current thread: finder    mac os version:  10k549    kernel version:  darwin kernel version 10.8.0: tue jun  7 16:33:36 pdt 2011; root:xnu-1504.15.3~1/release_i386  system model name: macbook4,1 (mac-f22788a9)    system uptime in nanoseconds: 28992182191452  unloaded kexts:  com.apple.driver.airportbrcm43xx	423.91.27 (addr 0xb64000, size 0x1900544) - last unloaded 95871567868  loaded kexts:  com.rogueamoeba.hermes	2.0.2 - last loaded 30137407844  org.virtualbox.kext.vboxnetadp	3.2.6  org.virtualbox.kext.vboxnetflt	3.2.6  org.virtualbox.kext.vboxusb	3.2.6  org.virtualbox.kext.vboxdrv	3.2.6  com.paceap.kext.pacesupport.snowleopard	5.7.2  com.iospirit.driver.rbiokithelper	1.8.1  com.cvnt.driver.cvntdriver	1.5  com.cvnt.nke	2.0  com.apple.driver.iobluetoothbnepdriver	2.4.5f3  com.apple.filesystems.autofs	2.1.0  com.apple.driver.applehda	2.0.5f14  com.apple.driver.applehwsensor	1.9.3d0  com.apple.driver.appleupstreamuserclient	3.5.7  com.apple.driver.applemccscontrol	1.0.20  com.apple.driver.applelpc	1.5.1  com.apple.driver.audioauuc	1.57  com.apple.driver.applebacklight	170.0.46  com.apple.driver.appleintelgmax3100	6.3.6  com.apple.driver.appleintelgmax3100fb	6.3.6  com.apple.driver.smcmotionsensor	3.0.1d2  com.apple.dont_steal_mac_os_x	7.0.0  com.apple.driver.audioipcdriver	1.1.6  com.apple.driver.appleintelpenrynprofile	17  com.apple.driver.acpi_smc_platformplugin	4.7.0a1  com.apple.driver.appleusbtrackpad	201.6  com.apple.driver.appleusbtckeyeventdriver	201.6  com.apple.driver.appleusbtckeyboard	201.6  com.apple.iokit.scsitaskuserclient	2.6.8  com.apple.bootcache	31.1  com.apple.applefscompression.applefscompressiontypezlib	1.0.0d1  com.apple.driver.appleusbhub	4.2.4  com.apple.iokit.ioahciblockstorage	1.6.4  com.apple.driver.appleahciport	2.1.7  com.apple.driver.appleintelpiixata	2.5.1  com.apple.driver.appleusbehci	4.2.4  com.apple.driver.applehpet	1.5  com.apple.iokit.appleyukon2	3.2.1b1  com.apple.driver.airportbrcm43224	428.42.4  com.apple.driver.appleusbuhci	4.2.0  com.apple.driver.applesmartbatterymanager	160.0.0  com.apple.driver.appleefinvram	1.4.0  com.apple.driver.applertc	1.3.1  com.apple.driver.applefwohci	4.7.3  com.apple.driver.appleacpibuttons	1.3.6  com.apple.driver.applesmbios	1.7  com.apple.driver.appleacpiec	1.3.6  com.apple.driver.appleapic	1.4  com.apple.driver.appleintelcpupowermanagementclient	142.6.0  com.apple.security.sandbox	1  com.apple.security.quarantine	0  com.apple.nke.applicationfirewall	2.1.14  com.apple.driver.appleintelcpupowermanagement	142.6.0  com.apple.driver.dspfunclib	2.0.5f14  com.apple.driver.appleprofilereadcounteraction	17  com.apple.driver.applebacklightexpert	1.0.1  com.apple.iokit.iondrvsupport	2.2.1  com.apple.driver.appleprofiletimestampaction	10  com.apple.driver.appleprofilethreadinfoaction	14  com.apple.driver.appleprofileregisterstateaction	10  com.apple.driver.appleprofilekeventaction	10  com.apple.driver.appleprofilecallstackaction	20  com.apple.iokit.iofirewireip	2.0.3  com.apple.iokit.iosurface	74.2  com.apple.iokit.iobluetoothserialmanager	2.4.5f3  com.apple.iokit.ioserialfamily	10.0.3  com.apple.iokit.ioaudiofamily	1.8.3fc2  com.apple.kext.osvkerndsplib	1.3  com.apple.driver.applehdacontroller	2.0.5f14  com.apple.iokit.iographicsfamily	2.2.1  com.apple.iokit.iohdafamily	2.0.5f14  com.apple.iokit.appleprofilefamily	41  com.apple.driver.applesmc	3.1.0d5  com.apple.driver.ioplatformpluginfamily	4.7.0a1  com.apple.driver.csrusbbluetoothhcicontroller	2.4.5f3  com.apple.driver.appleusbbluetoothhcicontroller	2.4.5f3  com.apple.iokit.iobluetoothfamily	2.4.5f3  com.apple.iokit.iousbhiddriver	4.2.0  com.apple.driver.appleusbmergenub	4.2.4  com.apple.driver.appleusbcomposite	3.9.0  com.apple.iokit.ioscsimultimediacommandsdevice	2.6.8  com.apple.iokit.iobdstoragefamily	1.6  com.apple.iokit.iodvdstoragefamily	1.6  com.apple.iokit.iocdstoragefamily	1.6.1  com.apple.iokit.ioatapiprotocoltransport	2.5.1  com.apple.iokit.ioscsiarchitecturemodelfamily	2.6.8  com.apple.driver.xsanfilter	402.1  com.apple.iokit.iousbuserclient	4.2.4  com.apple.iokit.ioahcifamily	2.0.6  com.apple.iokit.ioatafamily	2.5.1  com.apple.iokit.io80211family	320.1  com.apple.iokit.ionetworkingfamily	1.10  com.apple.iokit.iousbfamily	4.2.4  com.apple.driver.appleefiruntime	1.4.0  com.apple.iokit.iofirewirefamily	4.2.6  com.apple.iokit.iohidfamily	1.6.6  com.apple.iokit.iosmbusfamily	1.1  com.apple.kext.applematch	1.0.0d1  com.apple.security.tmsafetynet	6  com.apple.driver.diskimages	289.1  com.apple.iokit.iostoragefamily	1.6.3  com.apple.driver.appleacpiplatform	1.3.6  com.apple.iokit.iopcifamily	2.6.5  com.apple.iokit.ioacpifamily	1.3.0   

should worried this?

 

does happen often, or one-time occurrence? if latter, there no need worry.

 

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