Topic: Repeatable FireFace UC Crash

I've written about this before and here I am again.

2008 MacBook Pro, FireFace UC, SNow Leopard, Logic Pro. All I have to do is use the bounce function in Logic and I get one of two results.

1. I get through the bounce but Logic looses communication with the FF. I have to un plug/ re plug the USB cable to get it to work again.


2. I get a complete kernel panic and have to restart. Even then if I don't unplug/ replug the USB after restart, communication is patchy and when I launch TotalMix I get random peak and meter lights flashing. WHat follows is the Apple crash report. If anyone can make sense of it I would very much appreciate it.

Interval Since Last Panic Report:  -557210 sec
Panics Since Last Report:          1
Anonymous UUID:                    D1AF26A4-242A-4094-8119-D1E410BC6A81

Fri Feb  5 15:48:08 2010
panic(cpu 1 caller 0x2a7ac2): Kernel trap at 0x0800835b, type 13=general protection, registers:
CR0: 0x8001003b, CR2: 0x00406000, CR3: 0x00100000, CR4: 0x00000660
EAX: 0x08151ade, EBX: 0x5cf53c0c, ECX: 0xffffffff, EDX: 0x08931800
CR2: 0x00406000, EBP: 0x5cf53c78, ESI: 0x084da600, EDI: 0x00000003
EFL: 0x00010286, EIP: 0x0800835b, CS:  0x00000008, DS:  0x00600010
Error code: 0x0000bdc0

Backtrace (CPU 1), Frame : Return Address (4 potential args on stack)
0x814f228 : 0x21b2bd (0x5cf868 0x814f25c 0x223719 0x0)
0x814f278 : 0x2a7ac2 (0x591c30 0x800835b 0xd 0x591de7)
0x814f358 : 0x29d968 (0x814f370 0x0 0x5cf53c78 0x800835b)
0x814f368 : 0x800835b (0xe 0x530048 0x30010 0x10)
0x5cf53c78 : 0x119559a (0x814f400 0x84da600 0x1 0xbc443f9)
0x5cf53cc8 : 0x119af60 (0x812c800 0x84da600 0x8d17fe7 0x0)
0x5cf53d28 : 0x56ab8c1c (0x106ec300 0x84da600 0x8d17fe7 0x0)
0x5cf53d78 : 0x11947c2 (0x47da1000 0xd 0x1 0x47da3744)
0x5cf53dd8 : 0x11a59a0 (0x812c800 0x814d540 0x0 0x47da3744)
0x5cf53e38 : 0x12c7d1a (0x812c800 0x8b31780 0x5cf53e58 0x8ac7100)
0x5cf53e58 : 0x12c4aad (0x812c800 0x8b31780 0x0 0x8e19)
0x5cf53ea8 : 0x12c6511 (0x812c800 0x0 0x1 0x0)
0x5cf53ed8 : 0x12bf07b (0x812c800 0x0 0x5cf53f08 0x12bea18)
0x5cf53f08 : 0x5491b5 (0x812c800 0x0 0x1 0x29c50a)
0x5cf53f58 : 0x5481e6 (0x8121600 0x0 0x0 0x0)
0x5cf53f88 : 0x548640 (0x812ac00 0x0 0xeb988 0x22a122)
0x5cf53fc8 : 0x29d68c (0x812ac00 0x0 0x10 0x9d05ee0)
      Kernel Extensions in backtrace (with dependencies):

BSD process name corresponding to current thread: kernel_task

Mac OS version:

Kernel version:
Darwin Kernel Version 10.2.0: Tue Nov  3 10:37:10 PST 2009; root:xnu-1486.2.11~1/RELEASE_I386
System model name: MacBookPro4,1 (Mac-F42C89C8)

System uptime in nanoseconds: 156240138335490
unloaded kexts:    2.5.1 (addr 0x123e000, size 0x12288) - last unloaded 150580200766510
loaded kexts:
com.uaudio.driver.UAD2Pcie    5.5
de.rme-audio.driver.FirefaceUSB    1.19
com.paceap.kext.pacesupport.snowleopard    5.7.2
com.iospirit.driver.rbiokithelper    1.8.0
com.prometheanworld.iokit.IOACTIV    5.1
com.AmbrosiaSW.AudioSupport    3    2.5.1    9.6    5.0    1.9.2d0    2.1.0    1.7.9a4    1.4.5d1    3.1.0    1.4.9    3.0.0d4    7.0.0    1.1.2    17    4.0.1d0    6.0.6    170.0.14    1.8.0b4    1.8.0b4    2.6.0    1.6.0    3.1.14b1    2.5.0    2.0.1    160.0.0    3.8.4    31    1.0.0d1    4.4.0    3.7.5    3.7.5    421.91.26    1.3.0    1.3    1.4    1.3    1.4    1.3    1.4    0    0    2.1.11    96.0.0    96.0.0    2.6.0 - last loaded 150511024178861    2.0.0    4.0.5    1.2.0a3    1.2.0a3    2.6.0    2.5.1    17    1.7.9a4    10    14    10    10    20    2.0.3    73.0    2.2.4f3    10.0.3    1.7.9a4    1.7.9a4    1.7.2fc1    1.3    41    3.0.1d2    4.0.1d0    6.0.6    6.0.6    2.0    2.0    204.9    3.8.4    2.2.4f3    2.2.4f3    2.2.4f3    3.8.5    3.7.5    2.6.0    1.6    1.6    1.6    402.1    2.5.0    2.6.0    2.5.0    2.0.2    3.8.5    4.1.7    3.8.5    310.6    1.9    1.3.0    1.6.1    1.1    1.0.0d1    6    281    1.6    1.3    2.6    1.3.0
Model: MacBookPro4,1, BootROM MBP41.00C1.B03, 2 processors, Intel Core 2 Duo, 2.4 GHz, 4 GB, SMC 1.27f2
Graphics: NVIDIA GeForce 8600M GT, GeForce 8600M GT, PCIe, 256 MB
Memory Module: global_name
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8C), Broadcom BCM43xx 1.0 (
Bluetooth: Version 2.2.4f3, 2 service, 0 devices, 1 incoming serial ports
Network Service: Ethernet, Ethernet, en0
PCI Card: sppci_expresscard_name, sppci_othermultimedia, PCI Slot 3
Serial ATA Device: Hitachi HTS542520K9SA00, 186.31 GB
Parallel ATA Device: HL-DT-ST DVDRW  GSA-S10N
USB Device: USB2.0 Hub, 0x05e3  (Genesys Logic, Inc.), 0x0606, 0xfa200000
USB Device: Fireface UC Mac (22943948), 0x0424  (SMSC), 0x3fc6, 0xfa240000
USB Device: Built-in iSight, 0x05ac  (Apple Inc.), 0x8502, 0xfd400000
USB Device: Hub, 0x0424  (SMSC), 0x2514, 0xfd100000
USB Device: Unitor8 MkII, 0x086a, 0x0001, 0xfd120000
USB Device: Hub, 0x0424  (SMSC), 0x2602, 0xfd110000
USB Device: Keyboard Hub, 0x05ac  (Apple Inc.), 0x1006, 0xfd112000
USB Device: USB-PS/2 Optical Mouse, 0x046d  (Logitech Inc.), 0xc03d, 0xfd112300
USB Device: Apple Keyboard, 0x05ac  (Apple Inc.), 0x0220, 0xfd112200
USB Device: Flash, 0x0424  (SMSC), 0x2228, 0xfd111000
USB Device: BRCM2046 Hub, 0x0a5c  (Broadcom Corp.), 0x4500, 0x1a100000
USB Device: Bluetooth USB Host Controller, 0x05ac  (Apple Inc.), 0x820f, 0x1a110000
USB Device: IR Receiver, 0x05ac  (Apple Inc.), 0x8242, 0x5d100000
USB Device: Apple Internal Keyboard / Trackpad, 0x05ac  (Apple Inc.), 0x0230, 0x5d200000
FireWire Device: OXFORD IDE Device 1, Macpower, Up to 400 Mb/sec

Paul Najar
Jaminajar Music Production

2 (edited by oblique strategies 2010-04-09 00:05:30)

Re: Repeatable FireFace UC Crash

I am having similar problems, which I posted here:

I recently got a FFUC, which is giving me similar problems. Here's a list along with their frequency:

1. Kernel Panics require force shutdown of computer (occasionally).
2. Stops outputting audio & will not allow connection via Audio/MIDI (occasionally).
3. Distorted audio (occasionally).
4. Kills 2nd USB port (frequently).
5. Audio stops when CD is inserted into optical drive (always).
6. Apple Remote stops working (once).

I have an Early 2008 MacBook Pro 4,1 running OS X 10.5.8

I have had to stop using the FFUC & go back to my Multiface I & expresscard because the FFUC is too unstable for any use. I am still waiting for tech support to respond to my last emails.

In that list you'll see that I am also having the optical drive problem which you posted about here:
"Every time there was any DVD drive activity the computer lost connection with the interface. "

And which I posted about here:


Re: Repeatable FireFace UC Crash

Paul, you are still using driver 1.19? Why that? Please try version 1.21 or even better 1.30.

Matthias Carstens

Re: Repeatable FireFace UC Crash

Matthias, my original post was back in early February. 1.21 was not released until the middle of March.

I noticed the new 1.3/ 1.02 set but there were some guys with early report issues so I stepped back but now with the latest one's I will try them. If anything is different I'll let you know.

KLind regards

Paul Najar
Jaminajar Music Production

Re: Repeatable FireFace UC Crash

Wow! It's fixed for me.

The 1.3/ 1.02 package has done the trick - well almost. I can bounce in Logic and not loose communication with the FFUC.

The "almost" part refers to if say I have iTunes playing in the background and in Logic I select the Bounce command. The CD drives makes a noise for a second and playing audio stops - but then it resumes. You can do the same thing by having iTunes playing and open Disk Utility since it spins the CD drive for a second just like selecting Bounce in Logic does - but this is a big improvement.


Paul Najar
Jaminajar Music Production

6 (edited by oblique strategies 2010-05-06 05:40:47)

Re: Repeatable FireFace UC Crash

I have figured out what was disabling the the 2nd USB port on my MacBook Pro: it is actually the 2 USB ports on the Apple 24" aluminum Cinema Display that become disabled, & not the second port on the computer.

I also have a workaround to the problem of the FFUC becoming disabled whenever I insert a CD/DVD into the optical drive: simply de-select the FFUC in Audio/MIDI in OS X, insert the disc, then re-enable the FFUC.