Effects of leaving a firewire device plugged in....

I just got a 17" G5 imac today! I have a firewire audio interface for digital recording, but I also like to use it to power some speakers and play my iTunes out of it. I am wondering if leaving it plugged into the iMac has any effect on the performance of the machine. Of course when it is turned on it will effect the iMac, but what about when it is turned off?

Lisa,
It should not have any effect. However, some people claim it causes the iMac not go to sleep by itself.
Jurgen

Similar Messages

Mountain Lion crashes when plugging in firewire device.

I am running Mountain Lion (10.8.2) on an Early 2008 Mac Pro. Everytime I plug in a firewire camera to capture video the OS crashes and reboots my machine. This also happens on my late 2011 MacBook Pro. Any help is appreciated.
Here is the crash report:
Interval Since Last Panic Report: 254878 sec
Panics Since Last Report:          1
Anonymous UUID:                    C0397782-6778-A6D2-BFD3-9128AE02CB8D
Thu Sep 27 11:39:39 2012
panic(cpu 4 caller 0xffffff80042b83c9): "Double fault at 0xffffff7f849187da, registers:\n" "CR0: 0x000000008001003b, CR2: 0xffffff80d4be3e38, CR3: 0x00000000066d0000, CR4: 0x0000000000000660\n" "RAX: 0x00000000fffffff0, RBX: 0xffffffffffffffef, RCX: 0x000000000000001c, RDX: 0x0000000000000000\n" "RSP: 0xffffff80d4be3e40, RBP: 0xffffff81d4be3e90, RSI: 0xffffff81d4be3e04, RDI: 0xfffffffffffffff0\n" "R8: 0x0000000000000004, R9: 0x7ffffffffffffffe, R10: 0x00000000ffffffff, R11: 0x00000000ffffff80\n" "R12: 0xffffff80262a6279, R13: 0xffffff81d4be3ef0, R14: 0xffffff81d4be3ef0, R15: 0xffffff8040de3980\n" "RFL: 0x0000000000010206, RIP: 0xffffff7f849187da, CS: 0x0000000000000008, SS: 0x0000000000000010\n" "Error code: 0x0000000000000000\n"@/SourceCache/xnu/xnu-2050.18.24/osfmk/i386/trap_native.c: 280
Backtrace (CPU 4), Frame : Return Address
0xffffff81cb44eec0 : 0xffffff800421d626
0xffffff81cb44ef30 : 0xffffff80042b83c9
0xffffff81cb44f0a0 : 0xffffff80042ceddf
0xffffff81d4be3e90 : 0xffffff7f8491803c
0xffffff81d4be3ed0 : 0xffffff7f8492459b
0xffffff81d4be3f40 : 0xffffff7f84923d1a
0xffffff81d4be3f90 : 0xffffff7f84923bde
0xffffff81d4be3fb0 : 0xffffff80042b26b7
      Kernel Extensions in backtrace:
         com.apple.iokit.IOFireWireFamily(4.5.5)[A045A111-194F-3E54-A63E-E015DC69B862]@0 xffffff7f84917000->0xffffff7f84989fff
BSD process name corresponding to current thread: kernel_task
Mac OS version:
12C54
Kernel version:
Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 2012; root:xnu-2050.18.24~1/RELEASE_X86_64
Kernel UUID: 69A5853F-375A-3EF4-9247-478FD0247333
Kernel slide:     0x0000000004000000
Kernel text base: 0xffffff8004200000
System model name: MacPro3,1 (Mac-F42C88C8)
System uptime in nanoseconds: 264156192824443
last loaded kext at 196614206697331: com.apple.filesystems.msdosfs    1.8 (addr 0xffffff7f860ed000, size 65536)
last unloaded kext at 196734915261076: com.apple.driver.AppleUSBCDC    4.1.22 (addr 0xffffff7f8606c000, size 12288)
loaded kexts:
com.apple.filesystems.smbfs    1.8
com.apple.iokit.IOBluetoothSerialManager    4.0.9f33
com.apple.filesystems.autofs    3.0
com.apple.driver.AudioAUUC    1.60
com.apple.driver.AppleHWSensor    1.9.5d0
com.apple.driver.AppleUpstreamUserClient    3.5.10
com.apple.driver.AppleMCCSControl    1.0.33
com.apple.driver.AppleUSBDisplays    353
com.apple.kext.AMDFramebuffer    8.0.0
com.apple.iokit.CSRBluetoothHCIControllerUSBTransport    4.0.9f33
com.apple.driver.AppleHDA    2.3.1f2
com.apple.ATIRadeonX2000    8.0.0
com.apple.driver.AppleLPC    1.6.0
com.apple.driver.ACPI_SMC_PlatformPlugin    1.0.0
com.apple.driver.AppleMCEDriver    1.1.9
com.apple.iokit.IOUserEthernet    1.0.0d1
com.apple.Dont_Steal_Mac_OS_X    7.0.0
com.apple.driver.ApplePolicyControl    3.2.11
com.apple.iokit.SCSITaskUserClient    3.5.1
com.apple.driver.XsanFilter    404
com.apple.iokit.IOAHCIBlockStorage    2.2.2
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless    1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib    1.0.0d1
com.apple.BootCache    34
com.apple.driver.AppleUSBHub    5.2.5
com.apple.driver.AppleIntel8254XEthernet    3.1.1b1
com.apple.driver.AppleFWOHCI    4.9.6
com.apple.driver.AppleAHCIPort    2.4.1
com.apple.driver.AppleIntelPIIXATA    2.5.1
com.apple.driver.AppleUSBEHCI    5.4.0
com.apple.driver.AppleUSBUHCI    5.2.5
com.apple.driver.AppleEFINVRAM    1.6.1
com.apple.driver.AppleACPIButtons    1.6
com.apple.driver.AppleRTC    1.5
com.apple.driver.AppleHPET    1.7
com.apple.driver.AppleSMBIOS    1.9
com.apple.driver.AppleACPIEC    1.6
com.apple.driver.AppleAPIC    1.6
com.apple.driver.AppleIntelCPUPowerManagementClient    196.0.0
com.apple.nke.applicationfirewall    4.0.39
com.apple.security.quarantine    2
com.apple.driver.AppleIntelCPUPowerManagement    196.0.0
com.apple.iokit.IOSCSIBlockCommandsDevice    3.5.1
com.apple.iokit.IOUSBMassStorageClass    3.5.0
com.apple.iokit.IOSerialFamily    10.0.6
com.apple.kext.triggers    1.0
com.apple.driver.AppleSMBusController    1.0.10d0
com.apple.driver.AppleUSBAudio    2.9.0f6
com.apple.driver.DspFuncLib    2.3.1f2
com.apple.iokit.IOAudioFamily    1.8.9fc10
com.apple.kext.OSvKernDSPLib    1.6
com.apple.iokit.AppleBluetoothHCIControllerUSBTransport    4.0.9f33
com.apple.kext.AMD2600Controller    8.0.0
com.apple.kext.AMDSupport    8.0.0
com.apple.driver.IOPlatformPluginLegacy    1.0.0
com.apple.driver.IOPlatformPluginFamily    5.2.0d16
com.apple.driver.AppleHDAController    2.3.1f2
com.apple.iokit.IOHDAFamily    2.3.1f2
com.apple.iokit.IOFireWireIP    2.2.5
com.apple.iokit.IOSurface    86.0.3
com.apple.iokit.IOBluetoothFamily    4.0.9f33
com.apple.driver.AppleSMC    3.1.4d2
com.apple.driver.AppleGraphicsControl    3.2.11
com.apple.iokit.IONDRVSupport    2.3.5
com.apple.iokit.IOGraphicsFamily    2.3.5
com.apple.iokit.IOUSBHIDDriver    5.2.5
com.apple.driver.AppleUSBComposite    5.2.5
com.apple.iokit.IOSCSIMultimediaCommandsDevice    3.5.1
com.apple.iokit.IOBDStorageFamily    1.7
com.apple.iokit.IODVDStorageFamily    1.7.1
com.apple.iokit.IOCDStorageFamily    1.7.1
com.apple.iokit.IOATAPIProtocolTransport    3.5.0
com.apple.iokit.IOSCSIArchitectureModelFamily    3.5.1
com.apple.iokit.IONetworkingFamily    3.0
com.apple.iokit.IOUSBUserClient    5.2.5
com.apple.iokit.IOFireWireFamily    4.5.5
com.apple.iokit.IOAHCIFamily    2.2.1
com.apple.iokit.IOATAFamily    2.5.1
com.apple.iokit.IOUSBFamily    5.4.0
com.apple.iokit.IOHIDFamily    1.8.0
com.apple.driver.AppleEFIRuntime    1.6.1
com.apple.iokit.IOSMBusFamily    1.1
com.apple.security.sandbox    220
com.apple.kext.AppleMatch    1.0.0d1
com.apple.security.TMSafetyNet    7
com.apple.driver.DiskImages    344
com.apple.iokit.IOStorageFamily    1.8
com.apple.driver.AppleKeyStore    28.21
com.apple.driver.AppleACPIPlatform    1.6
com.apple.iokit.IOPCIFamily    2.7.1
com.apple.iokit.IOACPIFamily    1.4
com.apple.kec.corecrypto    1.0
Model: MacPro3,1, BootROM MP31.006C.B05, 8 processors, Quad-Core Intel Xeon, 2.8 GHz, 16 GB, SMC 1.25f4
Graphics: ATI Radeon HD 2600 XT, ATI Radeon HD 2600, PCIe, 256 MB
Memory Module: DIMM Riser B/DIMM 1, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x02BA, 0x202020202020202020202020202020202020
Memory Module: DIMM Riser B/DIMM 2, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x02BA, 0x202020202020202020202020202020202020
Memory Module: DIMM Riser A/DIMM 1, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x02BA, 0x202020202020202020202020202020202020
Memory Module: DIMM Riser A/DIMM 2, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x02BA, 0x202020202020202020202020202020202020
Memory Module: DIMM Riser B/DIMM 3, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x02BA, 0x202020202020202020202020202020202020
Memory Module: DIMM Riser B/DIMM 4, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x02BA, 0x202020202020202020202020202020202020
Memory Module: DIMM Riser A/DIMM 3, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x02BA, 0x202020202020202020202020202020202020
Memory Module: DIMM Riser A/DIMM 4, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x02BA, 0x202020202020202020202020202020202020
Bluetooth: Version 4.0.9f33 10885, 2 service, 18 devices, 1 incoming serial ports
Network Service: Ethernet 1, Ethernet, en0
Network Service: Ethernet 2, Ethernet, en1
PCI Card: ATI Radeon HD 2600, sppci_displaycontroller, Slot-1
Serial ATA Device: Hitachi HDS721010KLA330, 1 TB
Serial ATA Device: Hitachi HDS722020ALA330, 2 TB
Serial ATA Device: Hitachi HDS721010KLA330, 1 TB
Serial ATA Device: SAMSUNG HD103SI, 1 TB
Parallel ATA Device: PIONEER DVD-RW DVR-112D
Parallel ATA Device: PIONEER DVD-RW DVR-112D
USB Device: hub_device, apple_vendor_id, 0x912f, 0xfd500000 / 2
USB Device: USB Receiver, 0x046d (Logitech Inc.), 0xc50c, 0xfd530000 / 4
USB Device: Apple Cinema HD Display, apple_vendor_id, 0x9221, 0xfd520000 / 3
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8206, 0x5d200000 / 2
USB Device: SoundSticks, 0x05fc (Harman International), 0x7849, 0x3d100000 / 2
FireWire Device: built-in_hub, 800mbit_speed
FireWire Device: unknown_device, unknown_speed

Yes, I have tried different firewire cables and such. Removed my firewire hub, tried plugging into the actual ports on the MacPro and plugging in the firewire ports on the back of my Cinema 30 display. I even bought a new firewire cable just to make sure. So for now I guess I am going to downgrade my MacMini to Snow Leopard and use that machine to do video capture.
So last night I removed the primary harddrive from the MacPro. I installed a new 1TB harddrive. Formatted that drive and did a clean install of Mountain Lion and ran all software updates. Crashes when I plugin my firewire cameras with no other software but the OS.
So then I reformatted the drive and did a clean install of Lion and did all software updates. Still crashes.
I formatted the drive for a third time, this time installing Snow Leopard. Did all software updates. Plugged in my cameras one at a time and no crash. I installed iLife '11 and was able to video capture with iMovie via the firewire port.
I am pretty convinced that my hardware (at least) is in working order, otherwise it would have crashed with Snow Leopard also (correct me if my conclusion is incorrect). So I am inclined to agree with you that I may have triggered a bug in the OS.
Thank you for your insights. How do I go about reporting this issue to the Apple Software Engineers?

Kernel Panic when plugging Firewire devices

I have a Kernal Panic each time I plug something in the Firewire ports. I already have tried many things to solve this issue, in vain (see here, in french : http://www.xrings.net/xrings/forum/viewtopic.php?t=216 )
If somebody has any suggestion... Thanks !

Thank you jeffdc, but I have done it.
In fact, I've done all the things I could think about : they are listed in the link referring to an other forum (in french) in the first topic of this discussion :
http://www.xrings.net/xrings/forum/viewtopic.php?t=216.
I translate it here in english :
MY MAC. Power PC G4 800 MHz 256 Mo. System : OS X 10.4.2.
ISSUE. Kernel Panic each time I try to connect any kind of device (HD, iPod) to any of my Firewire ports.
CABLES AND DEVICES. I changed external Firewire cables and devices to be sure that the problem was not coming from them. The kernel panic appears systematicaly after connecting to the Firewire ports, when the computer is switched on as switched off with a reset...
FIREWIRE PORTS. I followed the instructions from the Apple Support Site : disconnect evreything (USB and all ports), switch off and disconnect the computer from the electricity alimentation cable, wait a few minutes, reconnect, switch on. Nothing changed.
HARDWARE TEST. I reboot on the Apple Hardware Test CD. Results were OK. I've done it twice : first time with iPod connected on the firewire, second time with nothing connected on the firewire port. First time the result was OK : firewire was indicated as "present". Second time it was OK too : it was indicated as "absent". So the computer is able to detect the Firewire device... (PS. I don't have any trouble with the iPod, nor with the software nor with the hardware, when the connection is with USB, so the iPod and its software are OK.)
AUTORISATIONS. I have of course repaired the autorisations with Disk Utility. Nothing changed.
NVRAM. I have done a reboot in Open Firmware (pommealt+of) to reset the Non Volatil RAM (reset-nvram, reset-all). For no result.
CORRUPTED, HIDDEN FILES. I've tried to do a big cleaning with Applejack utility (corrupted files etc.) in Open Firmware again. Again in vain.
NEW SYSTEM ON A PARTITION. My HD is divided en three partitions, so I've done a reboot on the Installation CD from my old 10.2 System on a partition containing only documents. I made a reset on that System, done a few upgradings (System, iTunes and iPod), and now that partition is 10.2.8.
NEW FIREWIRE TEST ON THE REINSTALLED SYSTEM. Under that freshly reinstalled System 10.2.8, I tried again to connect the iPod on the FireWire port : Kernel Panic again.
QUESTION. So, what does happen ? Is it a software or a hardware issue ? Or an original bug in the 10.2 system ? What can I do ?
Thank you again to all the people who have already read my post and took time to give me an answer, and to all the people who will do it.

Firewire devices no longer showing

This afternoon - for the first time in years - no firewire device showed up either on the Desktop or in the Apple Profiler.
Restarted several times with no success.
Devices on Firewire 400 (via bus) external CD reader/writer and DVD ditto.
Devices on Firewire 800, three LaCie drives linked together. Tried each one separately, no success.
Which is bit of a pain, these being my backup and ancillary storage devices ...
Disconnected them all. Restarted G5. Closed down and left G5 for half-an-hour (following a suggestion in a forum). Reconnected, restarted; no joy.
Console message includes:
Jun 6 14:50:03 localhost kernel[0]: FireWire (OHCI) Apple ID 42 built-in now active, GUID 001124ff fe86cb20; max speed s800.
and then, at the bottom of the report:
Jun 6 14:52:47 SarahJane kernel[0]: FireWire (OHCI) Apple ID 42 built-in: no valid selfIDs for more than 2 minutes after bus reset.
Jun 6 14:55:59 SarahJane kernel[0]: FireWire (OHCI) Apple ID 42 built-in: no valid selfIDs for more than 2 minutes after bus reset.
Jun 6 14:59:11 SarahJane kernel[0]: FireWire (OHCI) Apple ID 42 built-in: no valid selfIDs for more than 2 minutes after bus reset.
Can anyone help, please? I've run all the usual things, hardware check, diskwarrior, techtool (though none of these seem to check the firewire bus).

Right - had a look through, and after two attempts (mutter mutter and splutter curses) got everything going again.
The cure was, in this case, as listed in your first link: disconnect computer etc.
The first time the CD reader came back but the external drives wouldn't, so I said a few words that my wife would not approve of, then tried again but this time connected the (800 fw) external drives first, and then, when the buggers showed up, connected the cd drive on the 400 cable. I think the dvd drive on the 400 has died, so I'll leave that disconnected.
Oh it's a great machine when it's running right, it's a lovely gadget to play with; but when something goes wrong it can be very frustrating ...
I sometimes wish I'd had one of these when I was still at school and a little quicker on the uptake.

Firewire device looses connection when external screen is inserted into the thunderbolt port? HELP

HI
I am a recording studio engineer. Ive got a Firewire AD/DA Converter (Focusrite Saffire Pro 56) running from my Firewire port of my MacBook Pro, which is running OSX Mavericks. I've also got an external Screen I want to use as an extended display. I'm using a HDMI cable from the screen to a HDMI to Thunderbolt Converter which I then plug into my Thurderbolt Port.
As soon as I plug the screen in, the Firewire Port looses connection completely and I cant use or even choose the Saffire Pro 56 as audio driver. Another thing happens where the Thunderbolt port replaces the Saffire Pro 56 Driver with the screen as the audio output source.
Please help, there's nothing I can find to fix this.
Thanks Maurice

You don't mention which model you have, but this is from the M-Audio Firewire 410 Manual Troubleshooting section:
The FireWire 410 has been designed to give you high performance and professional quality audio. It has been tested under a wide range
of systems and operating conditions. In the real world, however, there is a nearly infinite number of possible operating scenarios, any of
which could affect your system’s performance. Much like owning an automobile, “your mileage may vary.” This section can not begin to
cover all possible issues you may encounter, however we want to give you some suggestions on common problems you may experience.
One thing to avoid is connecting too many devices. The FireWire bus is a dependable, high-speed, high-bandwidth protocol which is ideally
suited for digital audio. Nonetheless, it’s important to remember that audio and multimedia streaming places considerable demands on
your processor and the FireWire bus. Although it is theoretically possible to chain many multiple FireWire devices in series, doing so may
potentially degrade your audio performance.
I guess this degradation could also affect the Firewire HD. Maybe there is a simple fix, but it sounds like the M-Audio people have been down this road before.

Anyone able to mount more than 3 firewire devices on their Alum 2.4 imac?

Hi.
I can't power up more than 3 firewire devices or my imac kicks everything off. I have 2 Lacie 1T drives piggybacked on the 800 port and then a powered firewire hub plugged into the 400 port. I can have either another firewire external HD OR an external Cd/Dvd recorder plugged into the hub. If I try both (or any combination of 2 firewire devices) - the imac kicks everything off firewire, both on the 800 port and the 400 port. All my devices have their own external power supply. It also doesn't matter how I chain the drives. I can have 3 on the 800 port but then nothing on the 800 port.
This is a bummer for me. I migrated from a Dual G5 2GB with 4 external HDs and an 2nd external DVD writer attached. My drives are 2 1Ts, a 800 GB and a 400 GB. I do a lot of photography and video editing so I really need the external space. I guess this imac really isn't a "Pro" model but I didn't need any more speed and I wanted to save space and money. And I love the 24" screen. I think Apple should say up-front if there are significant limits to the imac's Firewire capabilities.
Are any of you you able to attach 4 firewire devices at one time? If so, then I guess my machine is defective and I'll start working with Apple on exchanging it. Please let me know.
Thanks

I think you should be able to do much more than 4 - I believe the theoretical maximum is somewhere at 20+ devices (if they are self-powered). I don't have a 24inch but instead a 20 inch but I'm running three HDs and one DVD drive and in fact, all daisy-chained onto one single firewire port on the Mac. Do your external drives have two ports or just one? In the former case, you might want to try skipping the hub and just daisy-chaining them. I've never owned a firewire hub so I don;t know if they can be touchy but you might want to give it a shot.
Andrew

Attaching VGA video adapter and Firewire device

I'm using the VGA video adapter to attach my brand new Mac mini to a VGA screen. As the space between video port and Firewire port is too narrow with the VGA video adapter attached I can't connect any Firewire cable!
Anyone who knows how to connect VGA video adapter and Firewire device at the same time?

The DVI-VGA adapter I got with my last mini was barely wider than the video port on the back of the mini and since a firewire connector is also barely wider than the FW port itself, there was no problem connecting to both at the same time, with a small but distinct space between. Indeed, it's about the same space as between the adapter and a cable plugged into the nearest of the USB ports on the other side.
If you're having problems, you might find that connecting the firewire cable first might help, but otherwise either the adapter or the connector on your firewire cable is non-standard. If you still can't connect both, take the mini, along with your firewire cable and the DVI-VGA adapter to an Apple store and ask them to try.

Kernal panic - log mentions firewire repeatedly but no firewire device

Hi Guys,
Any help appreciated with this. Firstly although my profile states leopard+ macpro this relates to a G5 running 10.4.11. We had a kernel panic earlier on a machine that has seemed buggy over the last few days (in spite of running Applejack). Weirdly the log mentions firewire repeatedly in spite of no device being mounted (there is a drive plugged in but not mounted + powered off). Ran verify disk + repaired permissions (nothing needed repairing) afterwards. Any ideas? Thank you.
panic.log:
Description: Panic (system crashes) log
Size: 7.61 KB
Last Modified: 19/12/2008 16:27
Location: /Library/Logs/panic.log
Recent Contents: ...
Backtrace:
0x002B98A0 0x002FEA4C 0x002FE8C0 0x002B7A98 0x002B7AEC 0x0008A6C0
0x0008A730 0x000291D0 0x0001AB84 0x00029574 0x00048DFC 0x0001D9CC 0x0001FD7C 0x000215CC
0x00038040 0x00263A78 0x00270200 0x00025250 0x000AC0B8
Kernel loadable modules in backtrace (with dependencies):
com.apple.iokit.IOFireWireAVC(1.8.1)@0x590000
dependency: com.apple.iokit.IOFireWireFamily(2.0.8)@0x54d000
com.apple.iokit.IOFireWireFamily(2.0.8)@0x54d000
Proceeding back via exception chain:
Exception state (sv=0x319F4780)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x3175BA00)
PC=0x90031C64; MSR=0x0000D030; DAR=0xA000C9F8; DSISR=0x0A000000; LR=0x90052328; R1=0xBFFFA420; XCP=0x00000030 (0xC00 - System call)
Kernel version:
Darwin Kernel Version 8.2.2: Mon Aug 22 18:43:11 PDT 2005; root:xnu-792.5.11.obj~1/RELEASE_PPC
panic(cpu 0 caller 0xFFFF0003): 0x300 - Data access
Latest stack backtrace for cpu 0:
Backtrace:
0x00095698 0x00095BB0 0x0002683C 0x000A8304 0x000ABC80
Proceeding back via exception chain:
Exception state (sv=0x319F4780)
PC=0x005651CC; MSR=0x00009030; DAR=0x11EB9000; DSISR=0x40000000; LR=0x0059FC2C; R1=0x177F3840; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x002B98A0 0x002FEA4C 0x002FE8C0 0x002B7A98 0x002B7AEC 0x0008A6C0
0x0008A730 0x000291D0 0x0001AB84 0x00029574 0x00048DFC 0x0001D9CC 0x0001FD7C 0x000215CC
0x00038040 0x00263A78 0x00270200 0x00025250 0x000AC0B8
Kernel loadable modules in backtrace (with dependencies):
com.apple.iokit.IOFireWireAVC(1.8.1)@0x590000
dependency: com.apple.iokit.IOFireWireFamily(2.0.8)@0x54d000
com.apple.iokit.IOFireWireFamily(2.0.8)@0x54d000
Exception state (sv=0x3175BA00)
PC=0x90031C64; MSR=0x0000D030; DAR=0xA000C9F8; DSISR=0x0A000000; LR=0x90052328; R1=0xBFFFA420; XCP=0x00000030 (0xC00 - System call)
Kernel version:
Darwin Kernel Version 8.2.2: Mon Aug 22 18:43:11 PDT 20050
Thu Aug 14 14:56:19 2008
Unresolved kernel trap(cpu 0): 0x300 - Data access DAR=0x0000000000000000 PC=0x00000000002FA4D8
Latest crash info for cpu 0:
Exception state (sv=0x61A82C80)
PC=0x002FA4D8; MSR=0x00009030; DAR=0x00000000; DSISR=0x40000000; LR=0x002FA4D4; R1=0x46803C30; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x002FA4D4 0x62A9E554 0x62A9E66C 0x00302900 0x00302984 0x002FB00C
0x0003CA1C 0x000A9714
Kernel loadable modules in backtrace (with dependencies):
com.apple.driver.StorageLynx(1.5.1)@0x62a9d000
dependency: com.apple.iokit.IOFireWireSBP2(1.7.5)@0x61575000
dependency: com.apple.iokit.IOSCSIArchitectureModelFamily(1.4.9)@0x557000
dependency: com.apple.iokit.IOFireWireSerialBusProtocolTransport(1.4.4)@0x61593000
dependency: com.apple.iokit.IOFireWireFamily(2.2.5)@0xa37000
Proceeding back via exception chain:
Exception state (sv=0x61A82C80)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x78946000)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)
Kernel version:
Darwin Kernel Version 8.11.0: Wed Oct 10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPC
panic(cpu 0 caller 0xFFFF0003): 0x300 - Data access
Latest stack backtrace for cpu 0:
Backtrace:
0x000954F8 0x00095A10 0x00026898 0x000A8204 0x000ABB80
Proceeding back via exception chain:
Exception state (sv=0x61A82C80)
PC=0x002FA4D8; MSR=0x00009030; DAR=0x00000000; DSISR=0x40000000; LR=0x002FA4D4; R1=0x46803C30; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x002FA4D4 0x62A9E554 0x62A9E66C 0x00302900 0x00302984 0x002FB00C
0x0003CA1C 0x000A9714
Kernel loadable modules in backtrace (with dependencies):
com.apple.driver.StorageLynx(1.5.1)@0x62a9d000
dependency: com.apple.iokit.IOFireWireSBP2(1.7.5)@0x61575000
dependency: com.apple.iokit.IOSCSIArchitectureModelFamily(1.4.9)@0x557000
dependency: com.apple.iokit.IOFireWireSerialBusProtocolTransport(1.4.4)@0x61593000
dependency: com.apple.iokit.IOFireWireFamily(2.2.5)@0xa37000
Exception state (sv=0x78946000)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x0000
Fri Dec 19 16:27:19 2008
panic(cpu 1 caller 0x000E83E4): vnode_put(7f5a210): iocount < 1
Latest stack backtrace for cpu 1:
Backtrace:
0x000954F8 0x00095A10 0x00026898 0x000E83E4 0x000E8390 0x0010DECC 0x0010E144 0x0010E368
0x000FBA54 0x000E249C 0x000E2030 0x000F51A0 0x000ED4E0 0x000ED898 0x002ABDB8 0x000ABD30
0x6963743E
Proceeding back via exception chain:
Exception state (sv=0x6192B780)
PC=0x90001B2C; MSR=0x0200F030; DAR=0x003E6004; DSISR=0x40000000; LR=0x00005488; R1=0xF0303D50; XCP=0x00000030 (0xC00 - System call)
Kernel version:
Darwin Kernel Version 8.11.0: Wed Oct 10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPC

The KP does look Firewire connected; so unplug it.
Understanding crash logs isn’t easy and it’s hard (sometimes impossible) to decipher the cause of the problem. Take a look at Apple’s Crash Reporter document at http://developer.apple.com/technotes/tn2004/tn2123.html
Also look at Tutorial: An introduction to reading Mac OS X crash reports
http://www.macfixit.com/article.php?story=20060309075929717
Kernel panics are usually caused by a hardware problem – frequently RAM, a USB device or a Firewire device. When trying to troubleshoot problems, disconnect all external devices except your monitor, kbd & mouse. Do you experience the same problems?
If you suspect RAM,look at this link: *Testing RAM* @ http://guides.macrumors.com/Testing_RAM Then download & use Memtest & Ramber.
May be a solution on one of these links.
Resolving Kernel Panics
Avoiding and eliminating Kernel panics
12-Step Program to Isolate Freezes and/or Kernel Panics
 Cheers, Tom

FireWire Bus: Warning: Unable to list FireWire devices.

How do I fix this on my older G5
FireWire Bus:
Warning: Unable to list FireWire devices.
Trying to use my sony DCR HC-30
Use to work

Hi try this...
reset FW bus, same goes for USB reset...
Reset the Firewire bus
If your Firewire or USB isn't recognizing any device. A solution which has worked for some whose hard drive became invisible in 10.4 was simply to follow these four steps to reset the Firewire/USB bus:
1. Shut the machine down.
2. UNPLUG the power lead to the computer and any firewire/USB drive or devices.
3. leave it for 10 minutes.
4. Connect back up and reboot.
http://www.macmaps.com/firewirebug2.html

Can I use my firewire AC plug to charge new Nano?

I am sure that I can't sync music with the firewire cable. I have 2 firewire AC plugs that I would like to use to charge my new Nano so I don't have to leave a computer awake just to charge. Safe to do?
Thanks

Yes, you can use your FireWire AC plug to charge the Nano. I have personally tried. Provided the other end of the cable is Ipod Native, which I assume it is.

Unable to list firewire devices.thank you now for your future help.

all right so my firewire decided it cant recognize my sony handycam...so i decided hey it is probably the firewire...so i buy a new firewire and it still doesnt work...so then i was like all right look it up online...i reset my smu nvram pram deleted the caches files turned off and unplugged the computer for 5 minutes ten minutes then a whole night...i get back to it and it doesnt work...so then i decided maybe my camera so i buy a new canon hd camera...i wanted a new camera anyways so what the heck you know? it doest recognize it...i have run techtool deluxe and disk utility repaired what i could repair...and nothing has worked...i then i take it to the mac store and have them look at it and he plugs in an external hard drive it works...my new canon works...and my sony does not work at the store...so then i am like all right it was a bad camera...get back home hook up the canon...it doesnt work...so if anyone has any ideas tell me please...i am in the middle of a project and this problem is really setting me back...i have some console messages and my mac info here... the guy at the mac store could have cared less that the bus was resetting and just thought i was crazy...would a hub solve this problem...i also tried plugging the comp in different outlets maybe it was being underpowered....so someone help me out the first console message i posted is from when i was in the apple store
Jun 30 19:24:10 localhost kernel[0]: 4.170.46.7.3FireWire (OHCI) Lucent ID 5901 built-in now active, GUID 001f5bfffe0f33ee; max speed s800.
Jun 30 19:32:53 localhost kernel[0]: FireWire (OHCI) Lucent ID 5901 built-in now active, GUID 001f5bfffe0f33ee; max speed s800.
Jun 30 21:54:40 localhost kernel[0]: FireWire (OHCI) Lucent ID 5901 built-in now active, GUID 001f5bfffe0f33ee; max speed s800.
Jun 30 22:02:26 josh-johnsons-imac kernel[0]: FireWire (OHCI) Lucent ID 5901 built-in: 238 bus resets in last 3 minute.
Jun 30 22:05:02 localhost kernel[0]: FireWire (OHCI) Lucent ID 5901 built-in now active, GUID 001f5bfffe0f33ee; max speed s800.
Jun 30 22:09:07 josh-johnsons-imac kernel[0]: FireWire (OHCI) Lucent ID 5901 built-in: 263 bus resets in last 3 minute.
Jun 30 22:12:25 localhost kernel[0]: FireWire (OHCI) Lucent ID 5901 built-in now active, GUID 001f5bfffe0f33ee; max speed s800.
Jun 30 22:17:08 josh-johnsons-imac kernel[0]: FireWire (OHCI) Lucent ID 5901 built-in: 290 bus resets in last 3 minute.
Jun 30 22:20:24 josh-johnsons-imac kernel[0]: FireWire (OHCI) Lucent ID 5901 built-in: 260 bus resets in last 3 minute.
Jun 30 22:23:40 josh-johnsons-imac kernel[0]: FireWire (OHCI) Lucent ID 5901 built-in: 269 bus resets in last 3 minute.
Jun 30 22:26:56 josh-johnsons-imac kernel[0]: FireWire (OHCI) Lucent ID 5901 built-in: 296 bus resets in last 3 minute.
Jun 30 22:30:13 josh-johnsons-imac kernel[0]: FireWire (OHCI) Lucent ID 5901 built-in: 287 bus resets in last 3 minute.
Jun 30 22:33:30 josh-johnsons-imac kernel[0]: FireWire (OHCI) Lucent ID 5901 built-in: 300 bus resets in last 3 minute.
Jun 30 22:36:46 josh-johnsons-imac kernel[0]: FireWire (OHCI) Lucent ID 5901 built-in: 304 bus resets in last 3 minute.
Jun 30 22:40:03 josh-johnsons-imac kernel[0]: FireWire (OHCI) Lucent ID 5901 built-in: 300 bus resets in last 3 minute.
Jun 30 22:43:59 localhost kernel[0]: FireWire (OHCI) Lucent ID 5901 built-in now active, GUID 001f5bfffe0f33ee; max speed s800.
Jun 30 22:46:45 localhost kernel[0]: 4.170.46.7.3FireWire (OHCI) Lucent ID 5901 built-in now active, GUID 001f5bfffe0f33ee; max speed s800.
Jun 30 22:53:12 localhost kernel[0]: 4.170.46.7.3FireWire (OHCI) Lucent ID 5901 built-in now active, GUID 001f5bfffe0f33ee; max speed s800.
Jun 30 22:57:42 josh-johnsons-imac kernel[0]: FireWire (OHCI) Lucent ID 5901 built-in: 279 bus resets in last 3 minute.
Jun 30 23:00:55 josh-johnsons-imac kernel[0]: FireWire (OHCI) Lucent ID 5901 built-in: 116 bus resets in last 3 minute.
Jun 30 23:04:12 josh-johnsons-imac kernel[0]: FireWire (OHCI) Lucent ID 5901 built-in: 275 bus resets in last 3 minute.
Jun 30 23:07:26 josh-johnsons-imac kernel[0]: FireWire (OHCI) Lucent ID 5901 built-in: 179 bus resets in last 3 minute.
Model Name: iMac
Model Identifier: iMac7,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 1 GB
Bus Speed: 800 MHz
Boot ROM Version: IM71.007A.B03
SMC Version: 1.21f4
Serial Number: W-----------
FireWire Bus:
Warning: Unable to list FireWire devices.
Maximum Speed: Up to 800 Mb/sec

Hi -=Jawsh=-
Greetings and welcome to the Apple boards
Try the steps in this document: What to do if your computer won't recognize a FireWire or USB device
Most likely you will require a reset of the bus as described in the last 5 steps on that page.
Luck-
-DP

Firewire device not being detected

Hi! First time here, and hoping for some wise counsel! I have an audio control interface (M-Audio Project Mix I/O)running from my G5 via Firewire connection.
Following a brief power interuption, during which both device and Mac were 'on', the power was immediately restored, and I had to restart the Mac, but the Project Mix came back on with the power. Since this my Mac won't detect the control interface (I've reloaded the software and tried to re-establish the link through the software but no joy).
The M-Audio support site has a warning about permanent damage being caused to Firewire ports through 'hot-plugging' and I'm beginning to wonder if this may be the case here when the power was disrupted and then immediately restored.
How can I tell if this has happened? And if it has, can I do anything about it?
HELP!!!!
Thanks in advance to anyone who can advise! Bill

billnw1-
Try the ubiquitous SMU reset and see if that helps.
This document about what to do if your computer won't recognize a FireWire device may be helpful.
Luck-
-DaddyPaycheck

Firewire problem - (unable to list firewire device)

I plugged my newly purchased WD external harddisk into the iMac fw 400 port and nothing shows. I've tried to connect it with MBP and everything is working fine.
I checked the Console and it display the following message :
01/09/2009 3:53:40 PM SystemUIServer[1648] ICANotifications framework timed out waiting for a FireWire device with GUID '40718943393659308' to become ready!
01/09/2009 3:54:18 PM System Profiler[1750] SPFWR ERROR: FireWire bus may be unstable. Other FireWire devices may be present.
01/09/2009 4:24:56 PM SystemUIServer[74] ICANotifications framework timed out waiting for a FireWire device with GUID '40718943393659308' to become ready!
01/09/2009 4:31:22 PM SystemUIServer[74] ICANotifications framework timed out waiting for a FireWire device with GUID '40718943393659308' to become ready!
01/09/2009 4:36:30 PM SystemUIServer[74] ICANotifications framework timed out waiting for a FireWire device with GUID '40718943393659308' to become ready!
01/09/2009 4:38:26 PM System Profiler[109] SPFWR ERROR: FireWire bus may be unstable. Other FireWire devices may be present.
01/09/2009 4:48:03 PM SystemUIServer[74] ICANotifications framework timed out waiting for a FireWire device with GUID '40718943393659308' to become ready!
01/09/2009 4:49:12 PM SystemUIServer[74] ICANotifications framework timed out waiting for a FireWire device with GUID '40718943393659308' to become ready!
01/09/2009 4:57:04 PM SystemUIServer[74] ICANotifications framework timed out waiting for a FireWire device with GUID '40718943393659308' to become ready!
01/09/2009 4:57:37 PM System Profiler[110] SPFWR ERROR: FireWire bus may be unstable. Other FireWire devices may be present.
01/09/2009 5:13:23 PM SystemUIServer[74] ICANotifications framework timed out waiting for a FireWire device with GUID '40718943393659308' to become ready!
01/09/2009 5:18:14 PM System Profiler[110] SPFWR ERROR: FireWire bus may be unstable. Other FireWire devices may be present.
01/09/2009 5:27:44 PM SystemUIServer[74] ICANotifications framework timed out waiting for a FireWire device with GUID '40718943393659308' to become ready!
In the system profiler it said "unable to list firewire device"
I've tried the following method:
reset pram
unplug the power cord and wait for 30 mins and reboot
and they couldn't solve the problem.
Could anyone solve this?
Thanks

First thing to do is reset the FW chip set on the mother board. Unfortunately, when you power down the computer there is always a bit of power still applied to the motherboard to keep things alive and this usually includes the ports to do stuff like detect when a device wants to wake up the computer. The downside of this is when a bus/port chipset goes into a weird state, locks up, etc., simply power cycling (shutdown & restart) the computer won't work.
So first thing to try is resetting the chipset and to do this you have to power down the computer and completely unplug the computer from the wall power (unplug the power cord to your Mac). Also unplug everything from the Mac's ports (USB, FW, Ethernet, etc.) to make sure no parasitic power is still there to keep the chipset alive. Now let it sit for a minute (give those big power caps in there time to discharge). Now plug the power cord back in, plug in ONLY the keyboard and mouse, start up the Mac. Now plug in accessories/hard-drives and see if your FW ports and the drive work any better.
Best of luck!
Patrick
Reference articles:
What to do if your computer won't recognize a FireWire or USB device
http://support.apple.com/kb/HT1317?viewlocale=en_US
USB and FireWire Quick Assist
http://support.apple.com/kb/HT1151?viewlocale=en_US

Stumped: PM G5 FireWire Bus--Unable to list FireWire Devices

I have a nearly four year old Power Mac G5. My firewire ports were working fine a month ago before 10.5.8. Today I went to hookup my video camera to download some tape into iMovie '09 and it did not recognize the camera. A quick check of system profiler:
Warning: Unable to list FireWire devices.
I have tried the following to fix in this order:
1. Reset Pram (commandoption+PR)
2. Reset Devices by (commandoption+OF)
reset-nvram
set-defaults
reset-all
3. Repaired Permissions
4. Reset PRAM
5. Reinstalled 10.5.8 combo installer
I still cannot get the firewire bus to work. I am open to ideas. Someone suggested removing the PRAM battery but I have been unable to figure out how to do that.

I ended up unplugging computer for 5 minutes and re-plugging in and this seems to have solved problem (although I do not know why.)

Warning:Unable to list FireWire devices.

My firewire drives don't appear on my computer. in system profiler I get this message Warning: Unable to list FireWire devices. they do work on my laptop with all the same cables.

I've tried all of that, but still having problems -- cannot access either of my firewire ports with either of my dv cameras. This all happened after I had taken my iMac in for a tune up. Here is the long process to try and get the problem solved. I brought my iMac in to diagnose the problem and they replaced the logic board. (Of course, they didn't have the part in stock, so I had to lug my iMac back home and return in 5 days.) It still did not work, so I called Apple Care, who had me try a lot of different thiings and they he said it was a hardware problem. I brought it back to the Apple Store and one of the "geniuses" plugged in his test drive and my iMac recognized it. He convinced me to buy a new 9-pin cable and try the other firewire slot. That didn't work, either. I called Apple Care again and spent at least an hour on the phone. He said maybe it was my camera. This is not the case, as my PC recognized my dv camera device, using the same firewire cable. They could not resolve the problem and told me to take my iMac to an authorized Apple Certified repair store. Am I the only one still experiencing this problem? Thanks for taking the time to read and respond.

Effects of leaving a firewire device plugged in....

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