What caused this...?

[davidjearly]

So I got a kernel panic today for the first time ever. Thankfully, I didn't lose anything but was wondering if you folks could tell me what caused it based on the following:

panic(cpu 1 caller 0x001A429B): Unresolved kernel trap (CPU 1, Type 14=page fault), registers:
CR0: 0x8001003b, CR2: 0x00000000, CR3: 0x01744000, CR4: 0x000006e0
EAX: 0x00000000, EBX: 0x0324fa00, ECX: 0x00000000, EDX: 0x00000000
CR2: 0x00000000, EBP: 0x14883f78, ESI: 0x00000000, EDI: 0x03640140
EFL: 0x00010202, EIP: 0x2ae738e2, CS: 0x00000008, DS: 0x03240010

Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x14883d48 : 0x128d08 (0x3cb134 0x14883d6c 0x131de5 0x0)
0x14883d88 : 0x1a429b (0x3d0e4c 0x1 0xe 0x3d0670)
0x14883e98 : 0x19ada4 (0x14883eb0 0x6f45 0x5b46baf2 0x6f45)
0x14883f78 : 0x2a990e7f (0x324fa00 0xe0004004 0x6663600 0x0)
0x14883fa8 : 0x2b409ba6 (0x6663600 0xe0004004 0x0 0x0)
0x14883fc8 : 0x19ac1c (0x6c8e200 0x0 0x19e0b5 0x2ec1c64) Backtrace terminated-invalid frame pointer 0x0
Kernel loadable modules in backtrace (with dependencies):
com.apple.iokit.IOUSBMassStorageClass(1.4.7)@0x2b407000
dependency: com.apple.iokit.IOUSBFamily(2.6.5)@0x2a982000
dependency: com.apple.iokit.IOStorageFamily(1.5.1)@0x2aa27000
dependency: com.apple.iokit.IOSCSIArchitectureModelFamily(1.5.3)@0x2add6000
com.apple.iokit.IOUSBFamily(2.6.5)@0x2a982000

Kernel version:
Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386

Model: iMac5,1, BootROM IM51.0090.B03, 2 processors, Intel Core 2 Duo, 2 GHz, 1 GB
Graphics: ATI Radeon X1600, ATY,RadeonX1600, PCIe, 128 MB
Memory Module: BANK 0/DIMM0, 512 MB, DDR2 SDRAM, 667 MHz
Memory Module: BANK 1/DIMM1, 512 MB, DDR2 SDRAM, 667 MHz
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x87), Broadcom BCM43xx 1.0 (4.80.79.1)
Bluetooth: Version 1.7.14f14, 2 service, 0 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: ST3160812AS Q, 149.05 GB
Parallel ATA Device: MATSHITADVD-R UJ-85J, 3.61 GB
USB Device: Built-in iSight, Micron, Up to 480 Mb/sec, 500 mA
USB Device: DataTraveler 2.0, Kingston, Up to 480 Mb/sec, 500 mA
USB Device: Hub in Apple Pro Keyboard, Mitsumi Electric, Up to 12 Mb/sec, 500 mA
USB Device: Apple Optical USB Mouse, Primax Electronics, Up to 1.5 Mb/sec, 100 mA
USB Device: USB2.0 MFP, EPSON, Up to 12 Mb/sec, 100 mA
USB Device: Apple Pro Keyboard, Mitsumi Electric, Up to 12 Mb/sec, 250 mA
USB Device: Bluetooth HCI, Up to 12 Mb/sec, 500 mA
USB Device: IR Receiver, Apple Computer, Inc., Up to 12 Mb/sec, 500 mA

Thanks,

David

 

[bankshot]

Based on the following:

com.apple.iokit.IOUSBMassStorageClass(1.4.7)@0x2b407000
dependency: com.apple.iokit.IOUSBFamily(2.6.5)@0x2a982000
dependency: com.apple.iokit.IOStorageFamily(1.5.1)@0x2aa27000
dependency: com.apple.iokit.IOSCSIArchitectureModelFamily(1.5.3)@0x2add6000
com.apple.iokit.IOUSBFamily(2.6.5)@0x2a982000

And this:

USB Device: DataTraveler 2.0, Kingston, Up to 480 Mb/sec, 500 mA

I'd guess that it probably had something to do with your flash drive. That's not to say that the flash drive caused the panic, just that it was involved. I am of the firm belief that even if an external device provides totally unexpected input, the kernel should handle it gracefully and should never panic. So more than likely, there's a bug somewhere in there.