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Why does Time Machine almost immediately freeze everything when backup begins

I have not been able to back up my hard drive for weeks. Everytime I try, my computer locks up. I have repaired both my hard drive and the external hard drive I'm using as a time machine. When I do "repair disk" on both, the computer tells me both are OK.


I just bought and downloaded Mountain Lion hoping that would fix the problem. It didn't. I completely wiped the external hard drive and started over, and that didn't help either.


When i start a backup, It gets about 140 Mb in. And then the numbers stop moving. I can see the icon in my menu bar continues to spin like it's still backing up. Then within 5 minutes, the numbers are still the same and my entire computer locks up. The clock stops moving, everything. So I'm forced to make a hard restart.


I've tried backing up in Safe Mode.

I've tried letting it go for 5 hours, and it never moves.

I've done repair disk permissions.

I've done verify/repair disks.

I've tried logging in under another administrative account.

I've tried deleting the backups.backupdb folder from the external hard drive.

I've tried starting the computer using the start up disk.


I've tried to find a similar problem elsewhere on the forums, but most seem to get a lot further than mine before they freeze. I don't even get a quarter of a gig. I copied the monitor info from my most recent attempt. Here's what I have before the reboot:


7/31/13 9:12:03.409 AM CVMServer[110]: Check-in to the service com.apple.cvmsCompAgent_x86_64 failed. This is likely because you have either unloaded the job or the MachService has the ResetAtClose attribute specified in the launchd.plist. If present, this attribute should be removed.

7/31/13 9:12:03.465 AM CVMServer[110]: Check-in to the service com.apple.cvmsCompAgent_x86_64 failed. This is likely because you have either unloaded the job or the MachService has the ResetAtClose attribute specified in the launchd.plist. If present, this attribute should be removed.

7/31/13 9:12:14.847 AM Dock[220]: no information back from LS about running process

7/31/13 9:13:13.117 AM diskmanagementd[3230]: unmount blocked by dissenter PID=0 (unknown) status=0xf8da0002 log=kDAReturnBusy message=(null)

7/31/13 9:14:53.360 AM fseventsd[49]: Events arrived for /Volumes/Untitled 1 after an unmount request! Re-initializing.

7/31/13 9:14:53.360 AM fseventsd[49]: creating a dls for /Volumes/Untitled 1 but it already has one...

7/31/13 9:14:53.517 AM fseventsd[49]: disk logger: failed to open output file /Volumes/Untitled 1/.fseventsd/0000000000010e76 (No such file or directory). mount point /Volumes/Untitled 1/.fseventsd

7/31/13 9:14:53.517 AM fseventsd[49]: disk logger: failed to open output file /Volumes/Untitled 1/.fseventsd/0000000000010e76 (No such file or directory). mount point /Volumes/Untitled 1/.fseventsd

7/31/13 9:15:13.480 AM com.apple.usbmuxd[29]: _heartbeat_failed heartbeat detected detach for device 0x7-192.168.0.11:0!

7/31/13 9:16:02.097 AM coreservicesd[64]: Application App:"Finder" [ 0x0/0x1b01b] @ 0x0x7fe1c26972a0 tried to be brought forward, but isn't in fPermittedFrontASNs ( ( ASN:0x0-0x3e03e:) ), so denying.

7/31/13 9:16:02.097 AM WindowServer[98]: [cps/setfront] Failed setting the front application to Finder, psn 0x0-0x1b01b, securitySessionID=0x186a3, err=-13066

7/31/13 9:16:02.679 AM coreaudiod[125]: Disabled automatic stack shots because audio IO is active

7/31/13 9:16:03.306 AM coreaudiod[125]: Enabled automatic stack shots because audio IO is inactive

7/31/13 9:16:10.556 AM coreaudiod[125]: Disabled automatic stack shots because audio IO is active

7/31/13 9:16:11.322 AM coreaudiod[125]: Enabled automatic stack shots because audio IO is inactive

7/31/13 9:16:37.076 AM System Preferences[3266]: Cannot setMachineString without first being authenticated

7/31/13 9:16:37.101 AM System Preferences[3266]: *** WARNING: -[NSImage compositeToPoint:operation:] is deprecated in MacOSX 10.8 and later. Please use -[NSImage drawAtPoint:fromRect:operation:fraction:] instead.

7/31/13 9:16:37.103 AM System Preferences[3266]: *** WARNING: -[NSImage compositeToPoint:fromRect:operation:] is deprecated in MacOSX 10.8 and later. Please use -[NSImage drawAtPoint:fromRect:operation:fraction:] instead.

7/31/13 9:16:37.106 AM System Preferences[3266]: *** WARNING: -[NSImage compositeToPoint:operation:fraction:] is deprecated in MacOSX 10.8 and later. Please use -[NSImage drawAtPoint:fromRect:operation:fraction:] instead.

7/31/13 9:16:37.107 AM System Preferences[3266]: *** WARNING: -[NSImage compositeToPoint:fromRect:operation:fraction:] is deprecated in MacOSX 10.8 and later. Please use -[NSImage drawAtPoint:fromRect:operation:fraction:] instead.

7/31/13 9:16:52.082 AM UserEventAgent[201]: com.apple.TMLaunchAgent enabled

7/31/13 9:16:52.095 AM UserEventAgent[201]: com.apple.TMLaunchAgent disabled


Any help would be greatly appreciated! I have no backup right now and am avoiding being on my computer in case something crashes and I lose everything!


About my Mac: Version 10.8.4 Processor: 3.06 GHz Intel Core 2 Duo Memory: 8 GB 1067 MHz DDR3

iMac, OS X Mountain Lion (10.8.4)

Posted on Jul 31, 2013 6:43 AM

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Why does Time Machine almost immediately freeze everything when backup begins

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