Time Machine Hangs system (I think)

[itry2hide]

Every now and then my system crashes, probably once a week. My mouse still works, but no other input device works.

 

I checked the time on my display, and then looked in the system log. These are the last few entries.

 

Feb  7 09:46:17 Mac-Pro com.apple.backupd[1091]: Copied 3271 files (3.5 MB) from volume Hackintosh HD.
Feb  7 09:46:24 Mac-Pro com.apple.backupd[1091]: Starting post-backup thinning
Feb  7 09:47:12 Mac-Pro com.apple.backupd[1091]: Deleted backup /Volumes/Mirror/Backups.backupdb/Mac Pro/2011-02-05-204208: 198.59 GB now available
Feb  7 09:47:12 Mac-Pro com.apple.backupd[1091]: Post-back up thinning complete: 1 expired backups removed
Feb  7 09:47:13 Mac-Pro com.apple.backupd[1091]: Backup completed successfully.
Feb  7 09:47:36 Mac-Pro Safari[981]: Periodic CFURLCache Insert stats (iters: 362) - Tx time:0.069642, # of Inserts: 1, # of bytes written: 3005, Did shrink: NO, Size of cache-file: 181202944, Num of Failures: 0

 

This is the first few lines from the console after hard reboot:

 

Feb  7 09:54:57  com.apple.launchd[1]: *** launchd[1] has started up. ***
Feb  7 09:54:57  com.apple.launchd[1]: *** Verbose boot, will log to /dev/console. ***
Feb  7 09:56:17  com.apple.launchd[1] (com.apple.configd[131]): Falling back to default Mach exception handler. Could not find: com.apple.ReportCrash.DirectoryService
Feb  7 09:56:33 Mac-Pro com.apple.launchd[1] (com.apple.coreservicesd[180]): Falling back to default Mach exception handler. Could not find: com.apple.ReportCrash.DirectoryService

 

Didn't have this problem before I installed 10.6.6. I ran repair disk on the time machine volume (on SATA 1). No problems. System config is in my signature. Any help is greatly appreciated. I've lost some critical data because of these random crashes.