Crashing at Random

qwaven · 11-22-2007, 01:47 PM

Hello all,

The MAC in question is a iMAC 5.1?
Intel Core 2 Duo 2.16 GHz
3GB RAM
OSX 10.4

Fairly often it is experiencing Panics or crashing "windows blue screen" type messages.

This does not appear to happen in any particular program and has been reported that it crashed almost as soon as the user logged in at times as well.

We tried running Tech Tool Pro and all tests came out as passed.

Below is a crash log that was generated.

Code:

Mon Nov 19 16:24:26 2007
panic(cpu 1 caller 0x001A4A55): Unresolved kernel trap (CPU 1, Type 14=page fault), registers:
CR0: 0x8001003b, CR2: 0x00000000, CR3: 0x00de4000, CR4: 0x000006e0
EAX: 0x00000000, EBX: 0x04e30f00, ECX: 0x0659cc00, EDX: 0x07fa5380
CR2: 0x00000000, EBP: 0x364e3d68, ESI: 0xffff0000, EDI: 0x00939c24
EFL: 0x00010206, EIP: 0x0093b6f3, CS:  0x00000008, DS:  0x07fa0010


Backtrace, Format - Frame : Return Address (4 potential args on stack) 
0x364e3b18 : 0x128d08 (0x3cc0a4 0x364e3b3c 0x131de5 0x0) 
0x364e3b58 : 0x1a4a55 (0x3d24b8 0x1 0xe 0x3d1cdc) 
0x364e3c68 : 0x19aeb4 (0x364e3c80 0x7fa5380 0x364e3c98 0x52200c) 
0x364e3d68 : 0x93814c (0x4e30f00 0x936fc6 0x1 0x0) 
0x364e3da8 : 0x938b70 (0x4dc7a00 0xe0004001 0x1 0x0) 
0x364e3de8 : 0x389b2e (0x4dc7a00 0xe0004001 0x4e1bc00 0x7ce5d80) 
0x364e3e28 : 0x389d89 (0x4e1bc00 0xe0004001 0x4dc7a00 0x7ce5d80) 
0x364e3e58 : 0x386477 (0x4dc7a00 0x364e3f1c 0x364e3e88 0x3) 
0x364e3e98 : 0x389ae9 (0x4e1bc00 0x389d56 0x364e3f1c 0x4c20cc0) 
0x364e3eb8 : 0x389d3f (0x4e1bc00 0x389d56 0x364e3f1c 0x4d9d6c0) 
0x364e3ef8 : 0x389dde (0x4e1bc00 0x4c45440 0x389d56 0x364e3f1c) 
0x364e3f38 : 0x52881c (0x4e1bc00 0xe0004001 0x7ce5d80 0x4) 
0x364e3f58 : 0x528875 (0x659cc00 0x539598 0x364e3f78 0x19e23a) 
0x364e3f78 : 0x13d7d9 (0x659cc00 0x0 0x364e3fc8 0x39a350) 
0x364e3fc8 : 0x19ad2c (0x0 0x0 0x19e0b5 0x4d84160) Backtrace terminated-invalid frame pointer 0x0
      Kernel loadable modules in backtrace (with dependencies):
         com.apple.driver.AppleUSBHub(2.7.5)@0x935000
            dependency: com.apple.iokit.IOUSBFamily(2.7.5)@0x519000
         com.apple.iokit.IOUSBFamily(2.7.5)@0x519000


Kernel version:
Darwin Kernel Version 8.10.1: Wed May 23 16:33:00 PDT 2007; root:xnu-792.22.5~1/RELEASE_I386

Does anyone have any ideas?

Much appreciated.
Thanks :)

sinclair_tm · 11-22-2007, 05:07 PM

what usb devices do you have plugged in, and where in relation to the mac?

qwaven · 11-23-2007, 08:46 AM

We just have a mouse and keyboard plugged into the back.

I believe the user does also have an ipod or similar plugged in some time to time but not all the time.

sinclair_tm · 11-23-2007, 12:48 PM

well, the error seems to be related to the usb drivers some how. is there any different keyboards or mice that you could try to use for a while to see if the panics go away (which would mean that one or both are bad). also try plugging the mouse and keyboard in different ports (to see if you have a bad port). also, run the hardware test cd that came with the mac and see if it sees anything. if you get nothing from any of those, then the next thing i'd do is reinstall the os with the restore cds that came with it, in hopes thats its a corrupted file. if that doesn't fix it, then its time to take it back to apple for them to look at.

qwaven · 11-23-2007, 01:03 PM

Hmm.. okay well I plugged in a PC keyboard and mouse (still USB) which worked. Will test and see how that works out.

Thanks. I'll post back the results.

qwaven · 12-03-2007, 02:18 PM

Hello all,

Just wanted to update you and let you know that plugging in the PC keyboard/mouse seems to have rid the MAC of any further crashing.

Thanks a lot for all your help. :)

sinclair_tm · 12-03-2007, 09:12 PM

well, it sounds like you have a bad keyboard and or mouse. you should be able to get them replaced by apple.

11-23-2007, 08:46 AM	#3 (permalink)
qwaven Registered User Join Date: Nov 2007 Posts: 7 OS: OSX	Re: Crashing at Random We just have a mouse and keyboard plugged into the back. I believe the user does also have an ipod or similar plugged in some time to time but not all the time.

11-23-2007, 01:03 PM	#5 (permalink)
qwaven Registered User Join Date: Nov 2007 Posts: 7 OS: OSX	Re: Crashing at Random Hmm.. okay well I plugged in a PC keyboard and mouse (still USB) which worked. Will test and see how that works out. Thanks. I'll post back the results.

12-03-2007, 02:18 PM	#6 (permalink)
qwaven Registered User Join Date: Nov 2007 Posts: 7 OS: OSX	Re: Crashing at Random Hello all, Just wanted to update you and let you know that plugging in the PC keyboard/mouse seems to have rid the MAC of any further crashing. Thanks a lot for all your help. :)