My Mac Mini server hangs

[carlsson]

Three days in a row, my old Mac Mini have hanged due to no obvious reason.

I got the following errors in the log after reboot:

panic(cpu 0 caller 0x001A49CB): Unresolved kernel trap (CPU 0, Type 14=page fault), registers:
CR0: 0x8001003b, CR2: 0x3de1d010, CR3: 0x00dc1000, CR4: 0x000006e0
EAX: 0x3de1d000, EBX: 0x3de1d000, ECX: 0x00000000, EDX: 0x3de1d01c
CR2: 0x3de1d010, EBP: 0x2526bf18, ESI: 0x03883aa0, EDI: 0x08c46100
EFL: 0x00010206, EIP: 0x0036d0ad, CS: 0x00000008, DS: 0x3de10010

Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x2526bd68 : 0x128d0d (0x3cc65c 0x2526bd8c 0x131f95 0x0)
0x2526bda8 : 0x1a49cb (0x3d2a94 0x0 0xe 0x3d22b8)
0x2526beb8 : 0x19b3a4 (0x2526bed0 0x1 0x3883aa4 0x0)
0x2526bf18 : 0x3c44c6 (0x3de1d000 0x3de20000 0x2526bf58 0x0)
0x2526bf38 : 0x3be6aa (0x8c46100 0x0 0x2526bf68 0x1a3736)
0x2526bf78 : 0x13d989 (0x0 0x0 0x0 0x76470767)
0x2526bfc8 : 0x19b21c (0x0 0x0 0x8 0x41777e8) Backtrace terminated-invalid frame pointer 0x0

Kernel version:
Darwin Kernel Version 8.11.1: Wed Oct 10 18:23:28 PDT 2007; root:xnu-792.25.20~1/RELEASE_I386

Model: Macmini1,1, BootROM MM11.0055.B08, 2 processors, Intel Core Duo, 1.66 GHz, 2 GB
Graphics: Intel GMA 950, GMA 950, Built-In, spdisplays_integrated_vram
Memory Module: BANK 0/DIMM0, 2 GB, DDR2 SDRAM, 667 MHz
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x86), 1.4.4
Bluetooth: Version 1.9.5f4, 2 service, 1 devices, 1 incoming serial ports
Network Service: Built-in Ethernet, Ethernet, en0
Serial ATA Device: ST98823AS, 74.53 GB
Parallel ATA Device: MATSHITADVD-R UJ-846
USB Device: JM20336 SATA, USB Combo, JMicron, Up to 480 Mb/sec, 500 mA
USB Device: Hub in Apple USB Keyboard, Alps Electric, Up to 12 Mb/sec, 500 mA
USB Device: Apple USB Mouse, Mitsumi, Up to 1.5 Mb/sec, 100 mA
USB Device: Apple USB Keyboard, Alps Electric, Up to 1.5 Mb/sec, 250 mA
USB Device: Bluetooth USB Host Controller, Apple, Inc., Up to 12 Mb/sec, 500 mA
USB Device: IR Receiver, Apple Computer, Inc., Up to 12 Mb/sec, 500 mA
​

(I just turned off Bluetooth, didn't know it was on.)

Any ideas?

 

[SoCalReviews]

Judging by the age of the Mini and its server OS (6+ years) the most likely culprit of the problem is that the hard drive is failing but the system hanging could be the result of a range of hardware or software issues (HDD, RAM, Power Supply failing, cooling fan failing, CPU overheating, corrupted OS and/or corrupted data, etc.). You could try running HDD analysis and memory testing programs. If the problem does end up being the HDD or RAM then you could try replacing those parts and transferring or restoring from the old drive if it is still working enough to do the data transfer. If or when you open the Mini check for excess dust that could be obstructing the air flow and fan rotation. Make sure the Mini has enough air flow to properly cool the machine.

 

[blueroom]

HDD failing or thermal paste has dried out.

 

[Crosscreek]

Try Apple Mini forum. There are some very knowledgeable people over there.

 

[FrankHahn]

The log you provided is too short. The last loaded and unloaded framework may provide a good hint.

 

[iizmoo]

Run memtest on the RAM? Memory or the HDD can both develop failures due to age. And I believe you are way passed the time the hard drive should be replaced. Those old ones didn't last very long... I get nervous when they're more than 3 years old.

 

[carlsson]

Thanks for the answers guys!

The OS resides on an external drive.

As it happens, I have another Mini bought the same day. I have switched the machines, and now it works.

Hence, some sort of Hardware related problem.

Now I have time to investigate the broken Mini further. As you say, it's probably RAM or CPU (Heat?) related.

And yes, this machine *is* old. I have some domains on it and I also have a new Mini Server, but haven't got the time or effort to move the domains, SQL, mail and other stuff...

Regarding the lenght of the error report; That was all included in the "Your Mac was not shut down properly"-message.