05-01-2012, 01:39 PM

Originally Posted by notbillcosby

Yes and no, I suppose. Here's how it has played out:

- iMac B had its first out of the blue kernel panic.
- About 2 or 3 weeks later, iMac A started getting kernel panics almost immediately after startup, all the time. That's what most of this thread has been about.
- Within a day or two of iMac A freaking out constantly, iMac B had another during-use panic.
- Within a day or two of THAT happening, I walked in on iMac C sitting at a post-Netflix episode screen with a KP grey screen up in front of it.

iMacs B and C haven't been experiencing multiple panics, but the fact that they happened at all so close to iMac A completely losing its mind is what made me suspicious. I can't say that they have been fixed on B and C as they have never been a constant problem like they are with A.

I don't know about anyone else...but after all of the iMac A, B, and C identifiers...I'm more confused than ever as to which is which.

Why not tell us what model iMacs you have...and maybe that would help us understand...or visualize what you're working with.

Also (I think that you've already done this on at least one of your iMac's)...but booting from an OS DVD is one way to almost 100% eliminate software as a cause of the KP. If you still get KP's on an iMac during or after booting from an OS DVD...then it's almost definitely a hardware incompatibility (bad ram) or hardware failure issue.

- Nick

05-02-2012, 09:41 AM

iMac A - 20" core 2 duo, White. The very last white imac model made.
iMac B - 21" core 2 duo, Silver. The first run of silver and black flat panels.
iMac C - 24" core 2 duo, Silver. I THINK this is from the same time period as imac B.


I WOULD believe that it's hardware related because of how quickly Mac A jumps to that panic, except that just now on iMac B, after 2-ish days of running just fine, I flipped on my audio interfaces (maybe the 5th time I've done this in the last two days) and got a panic. The fact that these are all just starting at the same time is nagging at me. I suppose I could have hardware failure on all 3 of my computers at the same time, but I have a pretty hard time believing that without some sort of definitive proof. Log file:

Wed May 2 08:29:40 2012
panic(cpu 1 caller 0x2abf6a): Kernel trap at 0x088f1280, type 14=page fault, registers:
CR0: 0x8001003b, CR2: 0xabf7f804, CR3: 0x00100000, CR4: 0x00000660
EAX: 0x09080554, EBX: 0x0843c000, ECX: 0x0843c000, EDX: 0x0ab79100
CR2: 0xabf7f804, EBP: 0x4961bed8, ESI: 0x0bdf2b00, EDI: 0x06a5ca80
EFL: 0x00010206, EIP: 0x088f1280, CS: 0x00000008, DS: 0x00000010
Error code: 0x00000000

Backtrace (CPU 1), Frame : Return Address (4 potential args on stack)
0x4961bcc8 : 0x21b837 (0x5dd7fc 0x4961bcfc 0x223ce1 0x0)
0x4961bd18 : 0x2abf6a (0x59e3d0 0x88f1280 0xe 0x59e59a)
0x4961bdf8 : 0x2a1a78 (0x4961be10 0x0 0x4961bed8 0x88f1280)
0x4961be08 : 0x88f1280 (0xe 0xb640048 0x49610010 0x5def0010)
0x4961bed8 : 0x10d56c3 (0x843c000 0xab79100 0xe0008103 0x72c7940)
0x4961bf08 : 0x10de5da (0xbdf2b00 0x72c7964 0x0 0xbcbf7a8)
0x4961bf28 : 0x552ea6 (0x72c7940 0x800 0x3103 0x227c4b)
0x4961bf88 : 0x552eea (0x6a5ca80 0x6a5ca80 0x0 0x7fff)
0x4961bfc8 : 0x2a179c (0x6a5ca80 0x0 0x10 0x0)
Kernel Extensions in backtrace (with dependencies):
com.apple.driver.AppleFWOHCI(4.7.3)@0x10cc000->0x10f2fff
dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x94e000
dependency: com.apple.iokit.IOFireWireFamily(4.2.6)@0x909000

BSD process name corresponding to current thread: kernel_task

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: iMac7,1 (Mac-F4238CC8)

System uptime in nanoseconds: 133149857228287
unloaded kexts:
(none)
loaded kexts:
com.paceap.kext.pacesupport.snowleopard 5.7.2
tc.tctechnologies.driver.PaeFireStudio 3.5.5 10705
com.Apogee.driver.DuetFWOverideDriver 1.4.4
com.apple.driver.iPodSBCDriver 1.5.0 - last loaded 64403641566355
com.apple.filesystems.cd9660 1.4.1
com.apple.driver.InternalModemSupport 2.6.2
com.apple.filesystems.autofs 2.1.0
com.apple.filesystems.msdosfs 1.6.3
com.apple.driver.AppleHWSensor 1.9.3d0
com.apple.driver.AppleTyMCEDriver 1.0.2d2
com.apple.driver.AppleHDA 2.0.5f14
com.apple.driver.AppleUpstreamUserClient 3.5.7
com.apple.driver.AppleMCCSControl 1.0.20
com.apple.driver.AudioAUUC 1.57
com.apple.kext.ATIFramebuffer 6.3.6
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AudioIPCDriver 1.1.6
com.apple.driver.AppleIntelYonahProfile 14
com.apple.driver.AppleIntelPenrynProfile 17
com.apple.driver.AppleIntelNehalemProfile 11
com.apple.driver.AppleIntelMeromProfile 19
com.apple.driver.ACPI_SMC_PlatformPlugin 4.7.0a1
com.apple.driver.AppleLPC 1.5.1
com.apple.ATIRadeonX2000 6.3.6
com.apple.driver.AppleGraphicsControl 2.10.6
com.apple.driver.AppleBacklight 170.0.46
com.apple.driver.AppleIRController 303.8
com.apple.driver.CSRHIDTransitionDriver 2.4.5f3
com.apple.iokit.SCSITaskUserClient 2.6.8
com.apple.iokit.IOAHCIBlockStorage 1.6.4
com.apple.BootCache 31.1
com.apple.AppleFSCompression.AppleFSCompressionTyp eZlib 1.0.0d1
com.apple.iokit.AppleYukon2 3.2.1b1
com.apple.driver.AirPortBrcm43xx 423.91.27
com.apple.driver.AirPortBrcm43224 428.42.4
com.apple.driver.AppleFWOHCI 4.7.3
com.apple.driver.AppleUSBHub 4.2.4
com.apple.driver.AppleAHCIPort 2.1.7
com.apple.driver.AppleIntelPIIXATA 2.5.1
com.apple.driver.AppleUSBEHCI 4.2.4
com.apple.driver.AppleUSBUHCI 4.2.0
com.apple.driver.AppleEFINVRAM 1.4.0
com.apple.driver.AppleRTC 1.3.1
com.apple.driver.AppleHPET 1.5
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.AppleIntelCPUPowerManagementClien t 142.6.0
com.apple.security.sandbox 1
com.apple.security.quarantine 0
com.apple.nke.applicationfirewall 2.1.12
com.apple.driver.AppleIntelCPUPowerManagement 142.6.0
com.apple.driver.AppleFWAudio 2.6.2fc2
com.apple.iokit.IOFireWireAVC 4.0.6
com.apple.iokit.IOSCSIBlockCommandsDevice 2.6.8
com.apple.iokit.IOUSBMassStorageClass 2.6.7
com.apple.driver.AppleUSBHIDMouse 162
com.apple.driver.AppleHIDMouse 162
com.apple.driver.AppleUSBHIDKeyboard 141.5
com.apple.driver.AppleHIDKeyboard 141.5
com.apple.driver.AppleHDAHardwareConfigDriver 2.0.5f14
com.apple.driver.DspFuncLib 2.0.5f14
com.apple.driver.AppleProfileReadCounterAction 17
com.apple.iokit.IOFireWireIP 2.0.3
com.apple.driver.AppleHDAController 2.0.5f14
com.apple.iokit.IOHDAFamily 2.0.5f14
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.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.iokit.AppleProfileFamily 41
com.apple.driver.AppleSMC 3.1.0d5
com.apple.driver.IOPlatformPluginFamily 4.7.0a1
com.apple.driver.AppleSMBusPCI 1.0.10d0
com.apple.driver.AppleBacklightExpert 1.0.1
com.apple.iokit.IONDRVSupport 2.2
com.apple.kext.ATI2400Controller 6.3.6
com.apple.kext.ATISupport 6.3.6
com.apple.iokit.IOGraphicsFamily 2.2
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.driver.XsanFilter 402.1
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.driver.AppleFileSystemDriver 2.0
com.apple.iokit.IOATAPIProtocolTransport 2.5.1
com.apple.iokit.IOSCSIArchitectureModelFamily 2.6.8
com.apple.iokit.IO80211Family 320.1
com.apple.iokit.IONetworkingFamily 1.10
com.apple.iokit.IOFireWireFamily 4.2.6
com.apple.iokit.IOUSBUserClient 4.2.4
com.apple.iokit.IOAHCIFamily 2.0.6
com.apple.iokit.IOATAFamily 2.5.1
com.apple.iokit.IOUSBFamily 4.2.4
com.apple.driver.AppleEFIRuntime 1.4.0
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
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

05-02-2012, 09:55 AM

Originally Posted by notbillcosby

iMac A - 20" core 2 duo, White. The very last white imac model made.
iMac B - 21" core 2 duo, Silver. The first run of silver and black flat panels.
iMac C - 24" core 2 duo, Silver. I THINK this is from the same time period as imac B.


I WOULD believe that it's hardware related because of how quickly Mac A jumps to that panic, except that just now on iMac B, after 2-ish days of running just fine, I flipped on my audio interfaces (maybe the 5th time I've done this in the last two days) and got a panic. The fact that these are all just starting at the same time is nagging at me.

Thanks for the info on the iMacs...it helps (at least me) to put a "face" on each of your iMacs!

As far as having three iMacs getting kernel panics at the same time...I'm still thinking this is:

- next to impossible (or VERY unlucky)
- a couple of these iMacs were sitting unused (and had existing kernel panics from a long time ago)...and the kernel panics were forgotten until the computers were turned back on.
- someone just recently purchased these three iMacs...and they all had kernel panics when purchased
- some sort of "bad" software is installed on all three (potentially software for a shared peripheral such as a printer).
- someone has been swapping incompatible ram into one or more of these iMacs
- a hardware failure (logic board related) has occurred on one or more of these iMacs causing the KP's

I think that this pretty much covers 99% of the possibilities for KP's occurring on three iMac's at about the same time. It's now your job to narrow down the possibilities...and troubleshoot.

Originally Posted by notbillcosby

I suppose I could have hardware failure on all 3 of my computers at the same time, but I have a pretty hard time believing that without some sort of definitive proof.

The definitive proof could be all the troubleshooting you've done so far...and still getting KP's. I think that you need to tackle each one of these computer's one at a time...and after COMPLETELY troubleshooting each one...cross it off the list. If the KP's aren't solved...then it must be a hardware issue.

Start with:

- removing all incompatible ram (if exists)
- try booting from OS disc
- run hardware test from grey disc #2 (if you have the original gray disks for each computer)

- Nick

05-02-2012, 11:19 PM

I'll try a little harder to run some hardware tests off of Grey Disk 2 on the white iMac, as well as the other two. In the meantime, did you see anything telling in the most recent error report I posted for my 21" silver iMac?

05-03-2012, 12:54 PM

I'm curious what might be the issue here. Seems far from coincidence, so worth watching this post.

Is you house built on a Indian burial ground?

05-03-2012, 03:24 PM

...been watching this thread.

Has [bad] electricity been considered as a possible factor?

Dips in voltage that are not large enough to cause shutdown (or even dim your lights) can still cause undesirable system behaviors -- the resulting errors would be intermittent, inconsistent, and would likely affect all systems on the circuit (though possibly in different ways). Sound familiar?

Anyways, it's just a thought. I have seen it happen before, and hadn't seen it mentioned here.

Good luck!

05-03-2012, 07:33 PM

Originally Posted by askwhy

...been watching this thread.

Has [bad] electricity been considered as a possible factor?

Dips in voltage that are not large enough to cause shutdown (or even dim your lights) can still cause undesirable system behaviors -- the resulting errors would be intermittent, inconsistent, and would likely affect all systems on the circuit (though possibly in different ways). Sound familiar?

Anyways, it's just a thought. I have seen it happen before, and hadn't seen it mentioned here.

Good luck!

Interesting. Our power isn't particularly "clean" but i don't know that it has voltage dip issues- though it could. The only way I'd think that'd be a problem is if it had damaged hardware on all of my machines simiarly. I have a hard time wanting to believe that though, too, because of the white 20" that crashes almost immediately upon startup, which I consider far from intermittent. Also, I've had all 3 computers for pretty vastly different periods of time, so it's not like they all would've gotten worn down to the same level of "broken" at the same time or something...

05-03-2012, 11:46 PM

I booted the 20" into hardware test mode and did both the quick and extensive tests, and it found no issues! Seems like good news, though doesn't really make this any less confusing.

05-03-2012, 11:49 PM

My third iMac, the 24", has only had 1 panic through this whole thing. Here is the panic report for that one crash. I've previously posted reports for KPs on my two other machines... can someone who understands this stuff pick up on anything the three have in common that might point me toward an answer?




Sun Apr 29 22:01:58 2012
panic(cpu 0 caller 0x001AB0FE): Kernel trap at 0x00166069, type 14=page fault, registers:
CR0: 0x80010033, CR2: 0x00000004, CR3: 0x01204000, CR4: 0x00000660
EAX: 0x00000000, EBX: 0x05d97cb8, ECX: 0x0bba6a7c, EDX: 0x00000000
CR2: 0x00000004, EBP: 0x34c8fa28, ESI: 0x39b7b000, EDI: 0x00000000
EFL: 0x00010202, EIP: 0x00166069, CS: 0x00000008, DS: 0x004f0010
Error code: 0x00000000

Backtrace (CPU 0), Frame : Return Address (4 potential args on stack)
0x34c8f818 : 0x12b4c6 (0x45f91c 0x34c8f84c 0x13355c 0x0)
0x34c8f868 : 0x1ab0fe (0x469a98 0x166069 0xe 0x469248)
0x34c8f948 : 0x1a1713 (0x34c8f960 0x8000e1e9 0x34c8fa28 0x166069)
0x34c8f958 : 0x166069 (0xe 0x48 0x34c80010 0x1a0010)
0x34c8fa28 : 0x1668c7 (0x39b7b000 0x0 0x34c8fa88 0x2)
0x34c8fa88 : 0x16a51c (0x39b7b000 0x0 0x0 0x34c8fb88)
0x34c8fba8 : 0x16eed9 (0x39b7c000 0x0 0x8 0x65100f8)
0x34c8fd18 : 0x1727db (0x4a137c0 0x34c8fdb0 0x1000 0x0)
0x34c8fdd8 : 0x37a5d9 (0x4a137c0 0x34c8ff50 0x1000 0x0)
0x34c8ff78 : 0x3e3a7f (0x4b98cd4 0x4c5d4e0 0x4c5d524 0x0)
0x34c8ffc8 : 0x1a1c0a (0x4d333c0 0x0 0x1a40b5 0x4d77c80)
No mapping exists for frame pointer
Backtrace terminated-invalid frame pointer 0xbfffd318

BSD process name corresponding to current thread: firefox-bin

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: iMac8,1 (Mac-F227BEC8)

System uptime in nanoseconds: 248395059617137
unloaded kexts:
com.apple.driver.InternalModemSupport 2.4.0 - last unloaded 84370648928
loaded kexts:
com.parallels.kext.Pvsvnic 3.0
com.parallels.kext.vmmain 3.0
com.parallels.kext.hypervisor 3.0
com.logmein.hamachi 1.0
com.parallels.kext.Pvsnet 3.0
com.manycamllc.driver.ManyCamDriver 0.0.9
com.parallels.kext.ConnectUSB 3.0.0
com.apple.filesystems.smbfs 1.4.6 - last loaded 14099848545559
com.apple.filesystems.udf 2.0.2
com.apple.filesystems.ntfs 2.1
com.apple.iokit.IOBluetoothSerialManager 2.1.9f10
com.apple.filesystems.autofs 2.0.2
com.apple.driver.AppleHDA 1.7.1a2
com.apple.driver.AppleUpstreamUserClient 2.7.5
com.apple.driver.AppleHWSensor 1.9d0
com.apple.kext.ATY_Hypoprion 5.4.8
com.apple.driver.AppleHDAController 1.7.1a2
com.apple.Dont_Steal_Mac_OS_X 6.0.3
com.apple.driver.AppleIRController 113
com.apple.iokit.IOFireWireIP 1.7.7
com.apple.driver.AudioIPCDriver 1.0.6
com.apple.ATIRadeonX2000 5.4.8
com.apple.driver.ACPI_SMC_PlatformPlugin 3.4.0a17
com.apple.driver.AppleLPC 1.3.1
com.apple.driver.AppleBacklight 1.6.0
com.apple.driver.AppleUSBHIDMouse 1.2.4b3
com.apple.driver.BroadcomUSBBluetoothHCIController 2.1.9f10
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.IOAHCIBlockStorage 1.2.2
com.apple.driver.AppleUSBHub 3.4.9
com.apple.iokit.IOUSBUserClient 3.5.2
com.apple.iokit.IOATAPIProtocolTransport 1.5.3
com.apple.driver.AppleAHCIPort 1.7.0
com.apple.driver.AppleUSBEHCI 3.4.6
com.apple.driver.AppleUSBUHCI 3.5.2
com.apple.iokit.AppleYukon2 3.1.13b2
com.apple.driver.AppleFWOHCI 3.9.7
com.apple.driver.AirPortBrcm43xx 367.91.22
com.apple.driver.AppleIntelPIIXATA 2.0.1
com.apple.driver.AppleEFINVRAM 1.2.0
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.iokit.IOSerialFamily 9.4
com.apple.driver.DspFuncLib 1.7.1a2
com.apple.iokit.IOHDAFamily 1.7.1a2
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.iokit.IONDRVSupport 1.7.3
com.apple.iokit.IOGraphicsFamily 1.7.3
com.apple.driver.AppleHIDMouse 1.2.4b3
com.apple.driver.AppleUSBBluetoothHCIController 2.1.9f10
com.apple.iokit.IOBluetoothFamily 2.1.9f10
com.apple.iokit.IOUSBHIDDriver 3.4.6
com.apple.driver.AppleUSBComposite 3.2.0
com.apple.iokit.IOSCSIBlockCommandsDevice 2.1.1
com.apple.iokit.IOBDStorageFamily 1.5
com.apple.iokit.IODVDStorageFamily 1.5
com.apple.iokit.IOCDStorageFamily 1.5
com.apple.iokit.IOSCSIArchitectureModelFamily 2.1.1
com.apple.iokit.IOAHCIFamily 1.5.0
com.apple.iokit.IOUSBFamily 3.5.2
com.apple.iokit.IOFireWireFamily 3.4.9
com.apple.iokit.IO80211Family 216.1
com.apple.iokit.IOATAFamily 2.0.1
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.IOACPIFamily 1.2.0
com.apple.iokit.IOPCIFamily 2.6

05-25-2012, 09:32 PM

I have iMac 7,1 which is 2007 model and 20"

I also experience frequent KPs after upgrading to snow leopard recently. The iMac run fine in 10.5.

I searched many forums and find that many people experiences KPs.

I have Applecare for 3 years with no problems in 10.5. Once upgrade to 10.6, KPs happened.

05-27-2012, 10:35 PM

Sorry I lost contact with the world there for a while... Life got busy.

I followed directions I found on diagnosing kernel panics, and booted off a system disk and repaired all of the permissions and cleared the system cache with some third party free software. This seems to have solved the problems on my panic-at-boot Mac! The computer has hardly been used since I solved this problem due to more pressing issues in my life, but I had the machine successfully running for a few days with zero issues before shutting it down on my own free will. My house is in the middle of getting re-arranged so the computer hasn't made it back to its original desk yet, it's still on my work bench in the basement... I'll supply further updates once I'm sure it can stand on its own feet again. My other two computers have had no problems since fixing the boot panic mac! Thanks for everyone's help, let's hope this is all it took.