[mlehmann]

Ok, I just did the EFI upgrade on my MBP and thought that maybe this would fix the problem (one can dream, isn't it?) The problem is still there. It is very easy to reproduce the kernel panic. Simply plug the Mbox2 Mini, use it with any software, unplug it, open Safari and then quit Safari. As soon as I do the Command-Q to quit Safari, there's a kernel panic. Here's the crash log, seems very similar to Jimmy's one:

panic(cpu 1 caller 0x001A4A55): Unresolved kernel trap (CPU 1, Type 14=page fault), registers:
CR0: 0x8001003b, CR2: 0x08a22002, CR3: 0x00e8f000, CR4: 0x000006e0
EAX: 0x04511000, EBX: 0x05066000, ECX: 0x00000000, EDX: 0x05060200
CR2: 0x08a22002, EBP: 0x2531bb58, ESI: 0x05ec1680, EDI: 0x004b0958
EFL: 0x00010246, EIP: 0x02000000, CS: 0x00000008, DS: 0x00000010

Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x2531b938 : 0x128d08 (0x3cc0a4 0x2531b95c 0x131de5 0x0)
0x2531b978 : 0x1a4a55 (0x3d24b8 0x1 0xe 0x3d1cdc)
0x2531ba88 : 0x19aeb4 (0x2531baa0 0x202 0x2531bab8 0x3bf071)
0x2531bb58 : 0x3d801447 (0x5066000 0x0 0x2531bb88 0xd0)
0x2531bb78 : 0x3bee5e (0x62d7100 0x4b0958 0x1 0x19e23a)
0x2531bb98 : 0x3c37a4 (0x62d7100 0x4b0958 0x2531bbe8 0x3beecd)
0x2531bbc8 : 0x3c3666 (0x5ec1680 0x0 0x1 0x0)
0x2531bbe8 : 0x3bee5e (0x5ec1680 0x0 0x1 0x1)
0x2531bc08 : 0x3bef2d (0x5ec1680 0x0 0x0 0x1)
0x2531bc28 : 0x386eca (0x5ec1680 0xffff 0x5e7bf84 0x3a28540)
0x2531bc48 : 0x386efd (0x5e7bf80 0x0 0x1 0x5fddaa8)
0x2531bc68 : 0x3bee5e (0x5e7bf80 0x0 0x1 0x12d97d)
0x2531bc88 : 0x3bef2d (0x5e7bf80 0x0 0x2531bcd8 0x0)
0x2531bca8 : 0x1879a1 (0x5e7bf80 0x4ce13a8 0x1e 0x2531bcd8)
0x2531bcf8 : 0x12b4d7 (0x5fddaa8 0x5f6356c 0x4 0x11cc32)
0x2531bd38 : 0x11f1f0 (0x5fdda00 0x2531bdcc 0x24 0x0) Backtrace continues...
Kernel loadable modules in backtrace (with dependencies):
com.digidesign.mbox2.driver(7.3f117)@0x3d7fb000
dependency: com.apple.iokit.IOUSBFamily(2.7.5)@0x519000
dependency: com.apple.driver.AppleUSBMergeNub(2.7.5)@0x9be000
dependency: com.apple.iokit.IOAudioFamily(1.6.0b7)@0x75b000

Kernel version:
Darwin Kernel Version 8.10.1: Wed May 23 16:33:00 PDT 2007; root:xnu-792.22.5~1/RELEASE_I386

Model: MacBookPro2,2, BootROM MBP22.00A5.B07, 2 processors, Intel Core 2 Duo, 2.33 GHz, 2 GB
Graphics: ATI Radeon X1600, ATY,RadeonX1600, PCIe, 256 MB
Memory Module: BANK 0/DIMM0, 1 GB, DDR2 SDRAM, 667 MHz
Memory Module: BANK 1/DIMM1, 1 GB, DDR2 SDRAM, 667 MHz
AirPort: AirPort Extreme, 1.1.9.3
Bluetooth: Version 1.9.0f8, 2 service, 1 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: Hitachi HTS541616J9SA00, 149.05 GB
Parallel ATA Device: MAT****ADVD-R UJ-857D
USB Device: Built-in iSight, Micron, Up to 480 Mb/sec, 500 mA
USB Device: Apple Internal Keyboard / Trackpad, Apple Computer, Up to 12 Mb/sec, 500 mA
USB Device: IR Receiver, Apple Computer, Inc., Up to 12 Mb/sec, 500 mA
USB Device: Bluetooth USB Host Controller, Apple, Inc., Up to 12 Mb/sec, 500 mA