[subego]

So here's my KP

Sat Jan 28 20:43:06 2006
panic(cpu 0 caller 0x000E43BC): vnode_writedone: numoutput < 0
Latest stack backtrace for cpu 0:
Backtrace:
0x00095718 0x00095C30 0x0002683C 0x000E43BC 0x000D9060 0x004EB230 0x004DDFF4 0x008EFC80
0x008F2A00 0x008F2B00 0x00579FDC 0x0057A1FC 0x00740FF4 0x00741400 0x0072CC6C 0x0072C6EC
0x0053FA44 0x00521040 0x00520940 0x0081FA24 0x0080F450 0x002D0060 0x002CEF28 0x000A9894
Kernel loadable modules in backtrace (with dependencies):
com.apple.iokit.IOSCSIReducedBlockCommandsDevice(1 .4.4)@0x8ee000
dependency: com.apple.iokit.IOSCSIArchitectureModelFamily(1.4. 4)@0x572000
dependency: com.apple.iokit.IOStorageFamily(1.5)@0x4d8000
com.apple.iokit.IOFireWireSerialBusProtocolTranspo rt(1.4.0)@0x73f000
dependency: com.apple.iokit.IOFireWireSBP2(1.7.5)@0x729000
dependency: com.apple.iokit.IOSCSIArchitectureModelFamily(1.4. 4)@0x572000
dependency: com.apple.iokit.IOFireWireFamily(2.0.9)@0x517000
com.apple.iokit.IOFireWireSBP2(1.7.5)@0x729000
dependency: com.apple.iokit.IOFireWireFamily(2.0.9)@0x517000
com.apple.iokit.IOStorageFamily(1.5)@0x4d8000
com.apple.iokit.IOSCSIArchitectureModelFamily(1.4. 4)@0x572000
com.apple.driver.AppleFWOHCI(2.5.2)@0x809000
dependency: com.apple.iokit.IOPCIFamily(1.7)@0x458000
dependency: com.apple.iokit.IOFireWireFamily(2.0.9)@0x517000
com.apple.iokit.IOFireWireFamily(2.0.9)@0x517000
Proceeding back via exception chain:
Exception state (sv=0x2D190500)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)

This is a fresh 10.4.4 install on a mac mini. My old system (on the internal drive) never did this. It's happening consistently. I've had 6 over the last few days.

I could just jump back to the internal, but it's awful slow. Any other ideas?

Thanks!!!

[eevyl]

Looks like a hardware error, from something relating to Input/Output.

Are you running 10.4.4 from a external hard drive? Not sure if that is what you talk about in your last phrase. Seems the drive is having problems.

[Philip J. Fry]

It's either the drive causing problems or the FireWire bus. Run the hardware test that came with the Mini and see what it reports.

[jay3ld]

I had something similar to this after i did a Wipe and Fresh install on a G4 QuickSilver mac.
I found out it was a 4 port usb/ 2 port firewire card that was added on the mac.

[Detrius]

Did you read this? : http://forums.macnn.com/90/mac-os-x/248286/the-thread-computer-freezes-panics-crashes/


Start by checking your RAM.

[subego]

Thanks all!

eevyl: yup, sorry I wasn't clear, my system is on the external drive.

PJF: That's what I figured, wasn't sure what to do though, thanks for the advice!

Detrius: Yup. First place I looked. Definitely appreciative it's there.

I'll check the RAM with the hardware test since I need to do it for the drive. Do you really think it's RAM though? The log seems to point towards the drive, as does the fact it never happened until now.

[Detrius]

The log does point towards the drive, and the fact that the original installation was on the internal also points to the external drive (or something along those lines), but until you have a definitive answer (i.e. you changed something and the problems went away), I wouldn't rule out RAM. Bad RAM is notorious for not showing up until a reinstall/upgrade.

The small amount of information that we have does point to your problem being something along your FireWire chain. The frequency of the KPs also points away from RAM (RAM problems tend to be very frequent, but this isn't true in all cases).