I'm in the process of troubleshooting daily kernel panics. Under Apple's direction, I performed a "archive and install" without migrating to get a clean start, to see if any third party apps are causing trouble.
The system boots clean, no third party apps on start-up. The next day...kernel panic.
Each panic seems to follow the same pattern: Run fine all day on my campus wireless LAN, close the lid to sleep. I get home, open the lid, and a KP comes up within seconds. Sometimes I get to enter in the screen saver password, sometimes it KPs right away.
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panic(cpu 0 caller 0x001A31CE): Unresolved kernel trap (CPU 0, Type 14=page fault), registers:
CR0: 0x8001003b, CR2: 0x05bd7000, CR3: 0x0173c000, CR4: 0x000006e0
EAX: 0x05bd6ff0, EBX: 0xa18918e9, ECX: 0x8c4909c3, EDX: 0x2e2e725c
CR2: 0x05bd7000, EBP: 0x25b03aa8, ESI: 0xee4f394b, EDI: 0x83474c7f
EFL: 0x00010286, EIP: 0x4386b070, CS: 0x00000008, DS: 0x00000010
Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x25b03888 : 0x128d08 (0x3c9a14 0x25b038ac 0x131de5 0x0)
0x25b038c8 : 0x1a31ce (0x3cf6c8 0x0 0xe 0x3ceef8)
0x25b039d8 : 0x19a874 (0x25b039f0 0x202 0x25b03a28 0x6)
0x25b03aa8 : 0x4386c4b6 (0x5bd6ff0 0x0 0x25b03be0 0x25b03bc0)
0x25b03ac8 : 0x43869c8e (0x5ae0e08 0x25b03be0 0x25b03bc0 0x1999c1)
0x25b03b28 : 0x4386a4e9 (0x1 0x0 0x83 0x25b03be0)
0x25b03c08 : 0x43847668 (0x245c70ac 0x37867e00 0x18 0x165497)
0x25b03c48 : 0x43840cda (0x240834bc 0x245c7004 0x37867e00 0x18)
0x25b03d28 : 0x438607be (0x245c7004 0x37867e00 0x3f 0x9cdb6fd3)
0x25b03f08 : 0x398e91 (0x240832c8 0x44df680 0x1 0x41a3f78)
0x25b03f58 : 0x398063 (0x44df680 0x135eb4 0x0 0x41a3f78)
0x25b03f88 : 0x397d99 (0x4abac00 0x0 0x450 0x1b03)
0x25b03fc8 : 0x19a6ec (0x4abac00 0x0 0x19d0b5 0x4af8e40) Backtrace terminated-invalid frame pointer 0x0
Kernel loadable modules in backtrace (with dependencies):
com.apple.driver.AirPortAtheros(221.46)@0x4382f000
dependency: com.apple.iokit.IONetworkingFamily(1.5.1)@0x3bcd70 00
dependency: com.apple.iokit.IOPCIFamily(2.2)@0x35c21000
dependency: com.apple.iokit.IO80211Family(151.1)@0x43812000
Kernel version:
Darwin Kernel Version 8.8.3: Wed Oct 18 21:57:10 PDT 2006; root:xnu-792.15.4.obj~4/RELEASE_I386
Model: MacBook2,1, BootROM MB21.00A5.B00, 2 processors, Intel Core 2 Duo, 1.83 GHz, 2 GB
Graphics: Intel GMA 950, GMA 950, Built-In, spdisplays_integrated_vram
Memory Module: BANK 0/DIMM0, 1 GB, DDR2 SDRAM, 667 MHz
Memory Module: BANK 1/DIMM1, 1 GB, DDR2 SDRAM, 667 MHz
AirPort: AirPort Extreme, 1.0.46
Bluetooth: Version 1.7.11f14, 2 service, 1 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: TOSHIBA MK6034GSX, 55.89 GB
Parallel ATA Device: MATSHITACD-RW CW-8221
USB Device: Built-in iSight, Micron, Up to 480 Mb/sec, 500 mA
USB Device: Apple Internal Keyboard / Trackpad, Apple Computer, Up to 12 Mb/sec, 500 mA
USB Device: IR Receiver, Apple Computer, Inc., Up to 12 Mb/sec, 500 mA
USB Device: Bluetooth HCI, Up to 12 Mb/sec, 500 mA
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Each time, the same type of error comes up in the error log-page fault. OK, I'm not running stock memory; I upgraded to 2x1 GB sticks of DDR 2 PC5300 PNY RAM. I popped one out, so I'm running on 1 GB of memory in one slot (0).
It will be a few days before I can start to tell if it helped with the KPs, but on boot, the system just "felt faster." The top row icons seemed to come up nearly instantly and all at the same time. Maybe I expected the machine to be slower and perceiving a lack of slowing as "faster."
Is it possible that a bad RAM card can cause a slowdown but not trip a hardware test failure?
Upcoming steps:
If a KP comes up again, is swap memory cards to put the second 1 GB card in and go again.
If I get a KP, I repeat the cycle, using slot 1 instead of slot 0.
KP after that, turn AirPort off before sleep and on after wake.
Any other ideas?
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