Hello - I'm hoping someone here might be able to offer some insight into something I'm seeing. I've Googled and not found the specific set of weirdnesses I'm seeing.
I have a 13-inch Mid 2009 MBP. About six months ago I installed a 256 GB Intel SSD, and love the performance. It's hard to go back to a spinning platter after you've lived with an SSD for awhile. At the time I installed the SSD I was running Snow Leopard and I used Trim Enabler to enable TRIM support. Zero issues.
After 10.8.1 was released I upgraded to Mountain Lion, and downloaded the latest Trim Enabler to re-enable TRIM. A week later 10.8.2 became available and I installed the update and again re-enabled TRIM. Apart from battery life issues the machine runs very reliably.
Everything worked great until about two weeks ago when I enabled FileVault2. Ever since then, the machine kernel panics at login about 20% of the time. If it gets past the KP it seems to run fine, but in 5 years of owning 3 Macs, I had never seen a kernel panic ever up until this point. Here are some additional clues:
1) I used Carbon Copy Cloner to clone the SSD to a 7200 RPM WD Scorpio Black HDD, and swapped the drives. I never see Kernel Panics when running the HDD.
2) I thought that maybe Trim Enabler had corrupted the Kernel (even though that issue with earlier versions of Trim Enabler has since been resolved). Today's experiment: I put the SSD back in the MBP and made a bootable 10.8.2 installer on a USB stick. I did a complete re-install of the OS. Interestingly enough, the install kept the encrypted disk image. It asked me for a password to unlock the disk, and then proceeded to re-install 10.8.2 on the encrypted disk. When it finished, the first time it rebooted I got a kernel panic. I went into About The Mac and determined that Trim was not enabled, which is what I expected. (i.e. I think I have successfully restored to a pre-Trim Enabler state, which would eliminate Trim Enabler as a cause).
3) I went into System Prefs and turned off FileVault2. When the machine finished decrypting the disk, I rebooted. No Kernel Panic. And I see that I'm back to the regular login (not the FileVaulted login). I've rebooted the machine about 20 times and no kernel panics.
4) I booted off the USB stick, ran Disk Utility and erased the SSD. Then did a completely clean install of 10.8.2. Did not run the migration assistant thing, so I have a totally squeaky-clean install. Turned on FileVault. When the machine rebooted to begin the encryption, it immediately had a kernel panic. Gah.
FileVault hates my SSD.
Here's a sample KP:
Interval Since Last Panic Report: 499670 sec
Panics Since Last Report: 1
Tue Oct 23 18:27:08 2012
panic(cpu 0 caller 0xffffff800ceb7bd5): Kernel trap at 0xffffff7f8de93578, type 13=general protection, registers:
CR0: 0x000000008001003b, CR2: 0xffffff80ee8ce000, CR3: 0x000000000fb03000, CR4: 0x0000000000000660
RAX: 0x0000000012cfb21f, RBX: 0x01ffff801efcd000, RCX: 0x00000000658f72f3, RDX: 0x0000000000000000
RSP: 0xffffff80f40c3e50, RBP: 0xffffff80f40c3e60, RSI: 0x0000000000000002, RDI: 0xffffff800d401ef0
R8: 0x0000000000000001, R9: 0x00000000000003ff, R10: 0xffffffffffffffff, R11: 0x00000000ffffffff
R12: 0xffffff801efcd000, R13: 0xffffff801ebd1900, R14: 0xffffff801ef70100, R15: 0x0000000000000001
RFL: 0x0000000000010246, RIP: 0xffffff7f8de93578, CS: 0x0000000000000008, SS: 0x0000000000000000
Fault CR2: 0xffffff80ee8ce000, Error code: 0x0000000000000000, Fault CPU: 0x0
Backtrace (CPU 0), Frame : Return Address
0xffffff80f40c3af0 : 0xffffff800ce1d626
0xffffff80f40c3b60 : 0xffffff800ceb7bd5
0xffffff80f40c3d30 : 0xffffff800cece4ed
0xffffff80f40c3d50 : 0xffffff7f8de93578
0xffffff80f40c3e60 : 0xffffff800d23181b
0xffffff80f40c3ea0 : 0xffffff800d23133e
0xffffff80f40c3f30 : 0xffffff800d22d2d0
0xffffff80f40c3f70 : 0xffffff800d231e99
0xffffff80f40c3fb0 : 0xffffff800ceb26b7
Kernel Extensions in backtrace:
dependency: com.apple.iokit.IOUSBFamily(5.4.0)[C3094550-7F58-3933-A4F7-CD33AE83F8B9]@0xffff ff7f8dbab000
dependency: com.apple.iokit.IOPCIFamily(2.7.2)[B1B77B26-7984-302F-BA8E-544DD3D75E73]@0xffff ff7f8d472000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
Not yet set
Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 2012; root:xnu-2050.18.24~1/RELEASE_X86_64
Kernel slide: 0x000000000cc00000
Kernel text base: 0xffffff800ce00000
System model name: MacBookPro5,5 (Mac-F2268AC8)
System uptime in nanoseconds: 941471620
last loaded kext at 282686089: com.apple.iokit.IOAHCISerialATAPI 2.5.0 (addr 0xffffff7f8e298000, size 53248)
Model: MacBookPro5,5, BootROM MBP55.00AC.B03, 2 processors, Intel Core 2 Duo, 2.53 GHz, 8 GB, SMC 1.47f2
Graphics: NVIDIA GeForce 9400M, NVIDIA GeForce 9400M, PCI, 256 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1067 MHz, 0x859B, 0x435435313236344243313036372E4D313646
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1067 MHz, 0x859B, 0x435435313236344243313036372E4D313646
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8D), Broadcom BCM43xx 1.0 (220.127.116.11.22)
Bluetooth: Version 4.0.9f33 10885, 2 service, 18 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: INTEL SSDSC2CW240A3, 240.06 GB
Serial ATA Device: HL-DT-ST DVDRW GS23N
USB Device: Built-in iSight, apple_vendor_id, 0x8507, 0x24400000 / 2
USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0x26500000 / 2
USB Device: MobilePre, 0x0763 (M-Audio), 0x200f, 0x04100000 / 4
USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0236, 0x04600000 / 3
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0x04500000 / 2
USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x06100000 / 2
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8213, 0x06110000 / 4