Can someone please help me analyze a kernel panic report?

my macbook goes kernel panic every time run time machine. not being tech savvy, can't figure out problem, , thought lovely people help. report get:


interval since last panic report: 158530 sec
panics since last report: 1
anonymous uuid: 67601eee-f390-45ae-892c-38c0bd4fe6b4

sat jun 9 02:54:32 2012
panic(cpu 1 caller 0x001ab0fe): kernel trap @ 0x001920c1, type 14=page fault, registers:
cr0: 0x80010033, cr2: 0x42bd6fbe, cr3: 0x01971000, cr4: 0x00000660
eax: 0x00000089, ebx: 0x00000069, ecx: 0x00000083, edx: 0x42bd6fbf
cr2: 0x42bd6fbe, ebp: 0x56b1bac8, esi: 0x12bf6c43, edi: 0x00000069
efl: 0x00010216, eip: 0x001920c1, cs: 0x00000008, ds: 0x00000010
error code: 0x00000000

backtrace (cpu 1), frame : return address (4 potential args on stack)
0x56b1b8b8 : 0x12b4c6 (0x45f91c 0x56b1b8ec 0x13355c 0x0)
0x56b1b908 : 0x1ab0fe (0x469a98 0x1920c1 0xe 0x469248)
0x56b1b9e8 : 0x1a1713 (0x56b1ba00 0x219b6bd2 0x56b1bac8 0x1920c1)
0x56b1b9f8 : 0x1920c1 (0xe 0xbb2b0048 0x56b10070 0x140010)
0x56b1bac8 : 0x1d9913 (0x12bf6c43 0x42bd6fbe 0x9 0x400)
0x56b1bb08 : 0x1d999f (0x12bf6c31 0x1c 0x0 0x0)
0x56b1bb38 : 0x36e3cc (0x6f14c70 0x12bf6c00 0xe0 0x7b5e104)
0x56b1bf78 : 0x3e3a7f (0x6f61748 0x7b5e0c0 0x7b5e104 0x7a19f20)
0x56b1bfc8 : 0x1a1c0a (0x79e2640 0x0 0x1a40b5 0x80f3720)
no mapping exists frame pointer
backtrace terminated-invalid frame pointer 0xb0309258

bsd process name corresponding current thread: mds

mac os version:
9l31a

kernel version:
darwin kernel version 9.8.0: wed jul 15 16:55:01 pdt 2009; root:xnu-1228.15.4~1/release_i386
system model name: macbookpro5,5 (mac-f2268ac8)

system uptime in nanoseconds: 149175937685832
unloaded kexts:
com.apple.driver.itunesphonedriver 1.0 - last unloaded 145948051458728
loaded kexts:
com.sophos.kext.sav 7.3.0
com.apple.driver.itunesphonedriver 1.0 - last loaded 145845738902827
com.apple.driver.applehwsensor 1.9d0
com.apple.filesystems.autofs 2.0.2
com.apple.driver.applemikeyhiddriver 1.0.6
com.apple.driver.applehda 1.7.1a2
com.apple.driver.appleupstreamuserclient 2.7.5
com.apple.driver.applemikeydriver 1.7.1a2
com.apple.driver.applehdacontroller 1.7.1a2
com.apple.driver.agpm 100.8.7
com.apple.iokit.iobluetoothserialmanager 2.1.9f10
com.apple.dont_steal_mac_os_x 6.0.3
com.apple.nvidia.nv50hal 5.4.8
com.apple.driver.smcmotionsensor 2.1.1d2
com.apple.iokit.iofirewireip 1.7.7
com.apple.driver.audioipcdriver 1.0.6
com.apple.driver.appleircontroller 113
com.apple.kext.applesmclmu 1.4.5d1
com.apple.driver.acpi_smc_platformplugin 3.4.0a17
com.apple.driver.nvsmu 1.1.7
com.apple.driver.applesmbuspci 1.0.1d1
com.apple.driver.applelpc 1.3.1
com.apple.driver.applebacklight 1.6.0
com.apple.geforce 5.4.8
com.apple.driver.broadcomusbbluetoothhcicontroller 2.1.9f10
com.apple.driver.appleusbtcbuttons 1.7.4f1
com.apple.driver.appleusbmultitouch 189.35
com.apple.driver.appleusbtckeyboard 1.7.4f1
com.apple.driver.appleusbcardreader 2.0.8
com.apple.driver.appleusbmergenub 3.5.2
com.apple.iokit.ioscsimultimediacommandsdevice 2.1.1
com.apple.iokit.scsitaskuserclient 2.1.1
com.apple.driver.xsanfilter 2.7.91
com.apple.iokit.ioahciserialatapi 1.1.2
com.apple.iokit.ioahciblockstorage 1.2.3
com.apple.driver.applefwohci 3.9.7
com.apple.driver.airportbrcm43xx 366.91.21
com.apple.driver.appleusbhub 3.4.9
com.apple.iokit.iousbuserclient 3.5.2
com.apple.driver.appleusbehci 3.4.6
com.apple.driver.appleusbohci 3.4.6
com.apple.driver.appleahciport 1.7.0
com.apple.nvenet 1.0.54
com.apple.driver.appleefinvram 1.2.0
com.apple.driver.applesmartbatterymanager 158.10.5
com.apple.driver.applertc 1.2.3
com.apple.driver.applehpet 1.4
com.apple.driver.appleacpipci 1.2.5
com.apple.driver.appleacpibuttons 1.2.5
com.apple.driver.applesmbios 1.4
com.apple.driver.appleacpiec 1.2.5
com.apple.driver.appleapic 1.4
com.apple.security.seatbelt 107.12
com.apple.nke.applicationfirewall 1.8.77
com.apple.security.tmsafetynet 3
com.apple.driver.appleintelcpupowermanagement 76.2.0
com.apple.driver.diskimages 199
com.apple.bootcache 30.4
com.apple.driver.dspfunclib 1.7.1a2
com.apple.driver.applesmbuscontroller 1.0.1d1
com.apple.iokit.iohdafamily 1.7.1a2
com.apple.iokit.ioserialfamily 9.4
com.apple.iokit.ioaudiofamily 1.6.9fc5
com.apple.kext.osvkerndsplib 1.1
com.apple.driver.ioplatformpluginfamily 3.4.0a17
com.apple.driver.applesmc 2.3.1d1
com.apple.nvdaresman 5.4.8
com.apple.iokit.iondrvsupport 1.7.3
com.apple.iokit.iographicsfamily 1.7.3
com.apple.driver.appleusbbluetoothhcicontroller 2.1.9f10
com.apple.iokit.iobluetoothfamily 2.1.9f10
com.apple.iokit.iousbhiddriver 3.4.6
com.apple.iokit.iousbmassstorageclass 2.0.8
com.apple.driver.appleusbcomposite 3.2.0
com.apple.iokit.iobdstoragefamily 1.5
com.apple.iokit.iodvdstoragefamily 1.5
com.apple.iokit.iocdstoragefamily 1.5
com.apple.iokit.ioscsiblockcommandsdevice 2.1.1
com.apple.iokit.ioscsiarchitecturemodelfamily 2.1.1
com.apple.iokit.iofirewirefamily 3.4.9
com.apple.iokit.io80211family 216.1
com.apple.iokit.iousbfamily 3.5.2
com.apple.iokit.ioahcifamily 1.5.0
com.apple.iokit.ionetworkingfamily 1.6.1
com.apple.driver.appleefiruntime 1.2.0
com.apple.iokit.iosmbusfamily 1.1
com.apple.iokit.iostoragefamily 1.5.6
com.apple.iokit.iohidfamily 1.5.5
com.apple.driver.appleacpiplatform 1.2.5
com.apple.iokit.iopcifamily 2.6
com.apple.iokit.ioacpifamily 1.2.0


these specs macbook/os:
macbook pro (13 in. aluminum unibody)

mac os x version 10.5.8
processor: 2.26 ghz intel core 2 duo
memory: 4 gb 1067 mhz ddr3

 

this might help:

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resolving kernel panics​

 

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