[MadanKnightRyukendo]

Okay, so very early this morning, I was adding some stuff to the memory card in my Blackberry Pearl, and when I went to eject the card from the system, everything was okay until a very short time later (like not even a minute, from memory) when I received a Kernel Panic message on screen. This was what I found in the log after rebooting my PowerBook (its a Titanium DVI 867mhz/768 MB/20 GB HDD running 10.4.11):

Sat Aug 23 00:54:22 2008


Unresolved kernel trap(cpu 0): 0x300 - Data access DAR=0x0000000000000000 PC=0x00000000297F129C
Latest crash info for cpu 0:
Exception state (sv=0x286C4780)
PC=0x297F129C; MSR=0x00009030; DAR=0x00000000; DSISR=0x40000000; LR=0x297F1298; R1=0x12C5B9A0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x297F1298 0x297F1104 0x277CD9E8 0x2780FBF8 0x27814E34 0x277CD8A0
0x2780F634 0x2780F338 0x278106E0 0x27810A14 0x002D1B8C 0x002D0A54 0x000A9714
Kernel loadable modules in backtrace (with dependencies):
com.apple.iokit.IOUSBMassStorageClass(1.4.5)@0x297 ee000
dependency: com.apple.iokit.IOUSBFamily(2.8.1)@0x277cb000
dependency: com.apple.iokit.IOSCSIArchitectureModelFamily(1.4. 9)@0x27b28000
dependency: com.apple.iokit.IOStorageFamily(1.5)@0x27bb7000
com.apple.driver.AppleUSBOHCI(2.5.5)@0x2780c000
dependency: com.apple.iokit.IOUSBFamily(2.8.1)@0x277cb000
dependency: com.apple.iokit.IOPCIFamily(1.7)@0x22d0d000
com.apple.iokit.IOUSBFamily(2.8.1)@0x277cb000
Proceeding back via exception chain:
Exception state (sv=0x286C4780)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x276BD280)
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=0x286C4780)
PC=0x297F129C; MSR=0x00009030; DAR=0x00000000; DSISR=0x40000000; LR=0x297F1298; R1=0x12C5B9A0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x297F1298 0x297F1104 0x277CD9E8 0x2780FBF8 0x27814E34 0x277CD8A0
0x2780F634 0x2780F338 0x278106E0 0x27810A14 0x002D1B8C 0x002D0A54 0x000A9714
Kernel loadable modules in backtrace (with dependencies):
com.apple.iokit.IOUSBMassStorageClass(1.4.5)@0x297 ee000
dependency: com.apple.iokit.IOUSBFamily(2.8.1)@0x277cb000
dependency: com.apple.iokit.IOSCSIArchitectureModelFamily(1.4. 9)@0x27b28000
depen`
*********

Obviously, it had something to do with USB, but I'm not sure exactly what it was. It's been running perfectly fine since, so I decided to try and recreate it to get a handle on what happened, as I don't really have anything to lose on this computer (everything important is on my PowerMac). I wasn't able to, but upon checking the log again, I found this:

Sat Aug 23 23:20:52 2008


Unresolved kernel trap(cpu 0): 0x300 - Data access DAR=0x0000000000000000 PC=0x00000000297F129C
Latest crash info for cpu 0:
Exception state (sv=0x286C4780)
PC=0x297F129C; MSR=0x00009030; DAR=0x00000000; DSISR=0x40000000; LR=0x297F1298; R1=0x12C5B9A0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x297F1298 0x297F1104 0x277CD9E8 0x2780FBF8 0x27814E34 0x277CD8A0
0x2780F634 0x2780F338 0x278106E0 0x27810A14 0x002D1B8C 0x002D0A54 0x000A9714
Kernel loadable modules in backtrace (with dependencies):
com.apple.iokit.IOUSBMassStorageClass(1.4.5)@0x297 ee000
dependency: com.apple.iokit.IOUSBFamily(2.8.1)@0x277cb000
dependency: com.apple.iokit.IOSCSIArchitectureModelFamily(1.4. 9)@0x27b28000
dependency: com.apple.iokit.IOStorageFamily(1.5)@0x27bb7000
com.apple.driver.AppleUSBOHCI(2.5.5)@0x2780c000
dependency: com.apple.iokit.IOUSBFamily(2.8.1)@0x277cb000
dependency: com.apple.iokit.IOPCIFamily(1.7)@0x22d0d000
com.apple.iokit.IOUSBFamily(2.8.1)@0x277cb000
Proceeding back via exception chain:
Exception state (sv=0x286C4780)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x276BD280)
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=0x286C4780)
PC=0x297F129C; MSR=0x00009030; DAR=0x00000000; DSISR=0x40000000; LR=0x297F1298; R1=0x12C5B9A0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x297F1298 0x297F1104 0x277CD9E8 0x2780FBF8 0x27814E34 0x277CD8A0
0x2780F634 0x2780F338 0x278106E0 0x27810A14 0x002D1B8C 0x002D0A54 0x000A9714
Kernel loadable modules in backtrace (with dependencies):
com.apple.iokit.IOUSBMassStorageClass(1.4.5)@0x297 ee000
dependency: com.apple.iokit.IOUSBFamily(2.8.1)@0x277cb000
dependency: com.apple.iokit.IOSCSIArchitectureModelFamily(1.4. 9)@0x27b28000
depen`
*********

Could it have just been a one time occurrence, or do either of these point out anything I should change to prevent it in the future?

[Cold Warrior]

If you ejected it properly, then it sounds like you were doing the right thing. I wouldn't worry about it unless it keeps happening.
Have you used this memory card with your Mac before?

[MadanKnightRyukendo]

Repeatedly used it for almost a month (I got my Blackberry very close to the beginning of the month, and the card was purchased at the very same time). I had been connecting it solely to my Sawtooth PowerMac (running 10.2.8) until last week when I started using my PowerBook again, but I've connected it and disconnected it at least a dozen times since then.

Well as long as it's nothing that sounds like it needs to be worried about, then that's good. It didn't really bother me all that much, and in fact was semi-amusing, but I was just trying to figure it out for future reference.

[Big Mac]

It's interesting that it points to the SCSI driver.