Mac Forum / General / Hardware / May 2006

Apple USB modem causes iMac core duo kernel panic.
This is a problem that I called Apple tech support about shortly after I
bought my iMac 20" core duo.  This is the second Apple USB modem that I
have bought and both of them cause the same problems.  The Apple USB
external modem always causes a kernel panic when attempting to dial out.  
I can plug in the modem before power up or after and this always
happens.  Whenever the external USB modem is plugged in, the system will
have unpredictable freezes and lock ups and always causes a kernel panic
when attempting to dial out.  I hear no dial tone as the problem occurs
before dial out gets started.  Apple - please address this issue in a
software update or make it possible for dialup users to get new hardware
( a replacement computer rather than having to bring the unit in for a
hardware fix) that has this problem fixed.  I had to buy Airport Extreme
just to get online with a v.90 modem (the USB modem is v.92 with fax.)  
It is despicable that Apple is dissing dialup users and hasn't yet
addressed this issue which is all over Apple support pages and
newsgroups.  Why force dedicated Mac users to use an older Mac or a PC
because you don't support dialup and fax on the new intel models?

panic(cpu 0 caller 0x0019C9BE): Unresolved kernel trap (CPU 0, Type
14=page fault), registers:
CR0: 0x8001003b, CR2: 0x47967000, CR3: 0x00cf8000, CR4: 0x000006e0
EAX: 0x47983000, EBX: 0x038e8500, ECX: 0x0000080c, EDX: 0x00004000
ESP: 0x47967000, EBP: 0x24debe14, ESI: 0x47967000, EDI: 0x47984fd0
EFL: 0x00010206, EIP: 0x00193196, CS:  0x00000008, DS:  0x00190010

Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x24debc48 : 0x128b5e (0x3bb060 0x24debc6c 0x131bbc 0x0)
0x24debc88 : 0x19c9be (0x3c04e8 0x0 0xe 0x3c02a0)
0x24debd38 : 0x197a43 (0x24debd4c 0x24debe14 0x193196 0x48)
0x24debd44 : 0x193196 (0x48 0x10 0x24de0010 0x190010)
0x24debe14 : 0x4793e735 (0x3a1ac00 0x2 0x3711020 0x4793a700)
0x24debe54 : 0x4793e816 (0x3a1ac00 0x3 0x38e8544 0x19b8e8)
0x24debe94 : 0x4795190e (0x3a1ac00 0x49606c 0x24debed4 0x19b8e8)
0x24debed4 : 0x47a97433 (0x3b54000 0x479e4d90 0x24debf14 0x479e47b4)
0x24debf14 : 0x479e4ddc (0x235bc100 0x186a 0xac6eec10 0x377f568)
0x24debf34 : 0x38eaf6 (0x38e8c40 0x38e8500 0x8 0x19c9d2)
0x24debf84 : 0x13d683 (0x38e8500 0x3af98c5 0x0 0x0)
0x24debfd4 : 0x197911 (0x0 0x0 0x377f7e0 0x38e8500) Backtrace
terminated-invalid frame pointer 0x0
     Kernel loadable modules in backtrace (with dependencies):
        com.apple.driver.MotorolaSM56KUSB(1.5.0)@0x479a8000
           dependency:
com.apple.iokit.IOSerialFamily(9.0.0d30)@0x4799f000
           dependency:
com.apple.driver.AppleSM56KUSBModemFamily(1.0.1b5)@0x4794c000
        com.apple.driver.AppleSM56KUSBModemFamily(1.0.1b5)@0x4794c000
           dependency: com.apple.iokit.IOUSBFamily(2.4.0)@0x4fa000
           dependency:
com.apple.driver.AppleSM56KUSBAudio(1.9.10b10)@0x47931000
        com.apple.driver.AppleSM56KUSBAudio(1.9.10b10)@0x47931000
           dependency: com.apple.iokit.IOUSBFamily(2.4.0)@0x4fa000
           dependency:
com.apple.iokit.SM56KUSBAudioFamily(1.5.6b2)@0x4791a000

Kernel version:
Darwin Kernel Version 8.5.1: Mon Jan 30 21:07:08 PST 2006;
root:xnu-792.8.36.obj~1/RELEASE_I386

Model: iMac4,1, BootROM IM41.0055.B03, 2 processors, Intel Core Duo, 2
GHz, 2 GB
Graphics: ATI Radeon X1600, ATY,RadeonX1600, PCIe, 128 MB
Memory Module: DIMM0/BANK 0, 1 GB, DDR2 SDRAM, 667 MHz
Memory Module: DIMM1/BANK 1, 1 GB, DDR2 SDRAM, 667 MHz
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x89),
101.3 (3.120.28.3)
Bluetooth: Version 1.7.2f10, 2 service, 0 devices, 1 incoming serial
ports
Network Service: AirPort, AirPort, en1
PCI Card: pci14e4,4312, sppci_othernetwork, AirPort
Serial ATA Device: WDC WD2500JS-40NGB2, 232.89 GB
Parallel ATA Device: MATSHITADVD-R   UJ-846
USB Device: Built-in iSight, Micron, 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, Mitsumi Electric, Up to 1.5 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