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help deciphering a crash log?
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Senior User
Join Date: Mar 2000
Location: London
Status:
Offline
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Hi All,
Lately, I've been coming back to my desktop mac to find it won't wake from sleep. Logging in with a VNC client is unsuccessful, so I think it has been crashing. I have to do a hard restart each time.
I've checked the logs, and this bit of info seems to be the last thing the Mac did before it crashed:
****
Nov 17 14:25:16 G8 kernel[0]: USBF: 17186.231 [0xbb47000] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 2 of hub @ location: 0xfd310000)
****
This particular message appears over and over (I haven't counted, but it's easily up to 100 times).
I have a USB hub plugged directly into my Mac (with several devices coming from it), an Apple keyboard, plus my monitor has a USB hub (but nothing is plugged in to it). I've had a look in System Profiler for a USB device id'd as "0xfd310000" or "0xbb47000", but no luck.
I did notice I'd left a USB cable plugged in to the front of the Mac, but there was nothing on the other end (I'd had an external HD plugged in, several restarts ago). I've since unplugged it, just in case, but if there is nothing on the other end, would the OS be concerned with it?
Can anyone help me out with tracking down this problem?
Many thanks in advance,
Chas
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Clinically Insane
Join Date: Oct 2001
Location: San Diego, CA, USA
Status:
Offline
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Is that message there every time the crash occurs?
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Chuck
___
"Instead of either 'multi-talented' or 'multitalented' use 'bisexual'."
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Senior User
Join Date: Mar 2000
Location: London
Status:
Offline
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Good question. If there is a message, I can't see it: the times I've come to a frozen machine, the monitors are powered down, like it's crashed while asleep.
This has never happened, by the way, when I've been actively using the machine (as I am doing now).
Chas
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Clinically Insane
Join Date: Oct 2001
Location: San Diego, CA, USA
Status:
Offline
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But if you look in your system log after the machine comes back up, it should still have the last messages before you rebooted it.
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Chuck
___
"Instead of either 'multi-talented' or 'multitalented' use 'bisexual'."
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Senior User
Join Date: Mar 2000
Location: London
Status:
Offline
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ah, I see (sorry for the confusion).
I've had a look through the system log prior to the crash and after reboot. I see the the message quite a lot prior to the crash and just after reboot I don't see much other than the boot sequence, but after a while I see the very same message again (over and over). Looking at the most recent system log, that message is repeating every few seconds (but I can't see in Activity Monitor anything specific to "USB", perhaps something else is running, or the message is being generated by something so low-level it's not being reported in Activity Monitor?).
I'm going to start unplugging USB devices (not easy, the Mac is inside a Mac-shaped cubby).
Thanks very much for the help.
Chas
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