Error message on my Mac Pro Quad Core Dual

I'm sure we've talked kernel panics in the past, right? rears its nasty head again? no need to revisit except to say, what's new this time??

Next up: I take it "iDVD contents from Apple" ? Explain.

Disk Utility: don't rely on it. Don't use the version on DVD. Use another disk drive, Ms. "Emergency OS X Only" for doing repairs and has strictly Apple OS and utilities, you know, TechTool and Disk Warrior and gang.

Updating OS X.

Backup. Repair. Wait and read. Check MacFixit and MacIntouch for 3-4 days to wait for feedback (always something to learn). Some people do/will have trouble and I can learn from those, too. Use best update practices.

Only use the combo update. Apple the update after doing backup and repair; and, run the update from your "Emergency" - you can change the target volume to other than the drive you booted from.

Consider cloning OS X and applying the update to your "Test 10.5.5" system volume to insure it works.

I know 3.2GHz is top of the line, bleeding edge, finely tuned, and could be less forgiving of line current coming in (you need a 1500VA UPS at least), also heat and other possible issues. It comes with a higher duty PSU, too.

It isn't behaving, take it in. Intel is always improving their chips. They've managed to reduce power requirement and therefore heat, and safely get 3.4GHz now.

You did do a full clean install 'recently' so you really shouldn't need to do so again. And you should have, right? a backup/clone of your fresh install, so you never have to go through the work again, you can just restore from backup image; and, you have used TimeMachine and SuperDuper to make backup of "/Users" and data as well. So you can restore those.

If AHT gives "pass" or "Okay" and the fans work, and you keep the fans running 900 rpm... weather is still warm and your/our Mac Pro puts out a good deal of heat, so cooling is an issue...

I don't worry about Permission errors, I just run it, BUT, you should NOT run Repair Permissions from the DVD, Apple warns that Leopard you need to use the latest version of Disk Utility, hence, create that "Emergency" system and use that. Also, repair the drive with Disk Warrior, okay? Permissions can always be repaired while booted, it doesn't need to be done from 2nd drive (unless you can't boot of course, in which case you have more serious concerns).

People worry too much about permissions. Needed, do it and forget it and only before/after installing software and updates. It has no magic. Same with resetting PRAM.

Anyway, rerun permissions, and don't use CD/DVD for that anymore, it is a "no-no."

Panics are hardware, usually.

If you are dealing with 10.5.5, read through the last three days of reports on this on MacFixit/Touch - the later is mostly user feedback that is hard to make head or tale, Fixit focuses on troubleshooting fixes and problems aimed at solutions. http://www.macfixit.com

Lastly, the "updating Boot Cache" is normal now with Leopard.

#1. You DO have a 2nd bootable hard drive you can use for repairs and emergency? Because that is essential. Especially by now with all this trouble(shooting). You can only run Disk Warrior to repair a disk drive that you aren't booted from, so I assume you do have some kind of 'emergency' drive.

Forget using DVD and CDs.

Install OS X if needed, and update your FW drive, with Apple updates.
Don't use Software Update.
http://www.apple.com/support/downloads/

I use Leopard Cache Cleaner. A new version always comes out either just before an update, or right after.

Delete Caches folders in /Library/ and /System/Library
and the "extensions.mkext" in the last location.

Only run Disk Warrior from hard drive.
Never run Repair Permissions except from same system version as you have or one behind (10.5.4 or 10.5.5).

OWC dropped price to $78 for WD Caviar 640GB. Might want to pick up an SATA drive case with FW when you can, if you don't have a spare/open internal drive bay.

Have you gotten comfortable using SuperDuper? A system partition need only be 40GB for small emergency; and you can create and keep a disk image (sparse disk image .dmg) on any drive for restore. You don't always need to use a full drive, only a small part for booting, and room for a backup image somewhere.

Check http://www.macfixit.com there are tips and reports along with normal troubleshooting, and how to avoid most problems with OS updates. (Personally, I think it shows a lot to be desired and in need of improvement even after years).

Alsoft should be able to tell you what the error means.

Don't keep trying to boot if it panics. Do something different like boot from a SAFE drive. As for zapping PRAM, I can't see how it can affect or change an error on the disk drive from a bad update.

run SmcFanControl and 1000 rpm.
Monitor system temps with Hardware Monitor.

Testing RAM often means removing half and running with that until you otherwise would have had errors. And watching Console log and System Profile (which has easy access to logs).

10.5.5 'broke' OpenOffice 3.0RC1 so I am not updating yet, and running Vista 24/7 which really has been less trouble and stable for two years running.

Hi there,

Had exactly the same problem with my MacPro Quad.

"vm mapunwire: entry is unwired"

Was able to boot up in 'safe-mode' (with holding 'SHIFT').

fsck didn't help.
Repairing disk-permissions didn't help.

Used "applejack" as kindly suggested by 'the hatter' and it worked (so far).

My guess: Deleting the cache files was the solution.

All the best
- smash111 -