MacBook Pro congelando alcuni programmi (diversi ogni volta) prima di riprendere?

Ho un MacBook Pro 2012 che esegue OS 10.7.5 - e si sta comportando in modo molto strano. Sono davvero in perdita su cosa cercare anche. Il meglio che posso fare è collegarmi a un video che ho preso del portatile mentre si comportava in questo modo:

link

Riepilogo del comportamento che sto vedendo:

Per circa 10 minuti alla volta, il mio computer congela 2 o 3 programmi (non sono sempre gli stessi programmi). Altri programmi possono funzionare senza problemi. Dopo circa 10 minuti, tutto improvvisamente riprende a funzionare (e tutte le azioni che sono state tentate vengono eseguite rapidamente).

Tutto questo comportamento è mostrato nel video (vedi riprendere a lavorare alla fine).

Cose strane:

1. Chrome ritiene che alcune schede siano morte perché non riceve un heartbeat (quindi offre la possibilità di chiudere la scheda). Farlo, o non farlo, non ha importanza.
2. L'utilizzo della CPU e della memoria rimane vicino al livello di inattività.
3. Sono interessati solo alcuni programmi (a causa di questo comportamento ripetuto sono passato a Netscape e ritorno a Chrome, da Textmate a Sublime Text; nel tentativo di isolare ciò che potrebbe accadere.
4. Se sto suonando musica tramite iTunes, ad esempio, a volte quando si blocca, interromperà la musica fino a quando non riprenderà. Altre volte, continuerà a funzionare.

Qualsiasi aiuto su come capire cosa fare e cosa lo causa sarebbe molto apprezzato!

Modifica

Su richiesta, qui c'è il log della console intorno al momento del problema (ho iniziato le riprese alle 17:46, quindi i problemi intorno alle 17:40 sono probabilmente sospetti):

2014-05-05 17.40.12 5:40:12.474 PM com.jamfsoftware.task.Every 30 Minutes: Delaying 198 seconds...
2014-05-05 17.40.28 5:40:28.316 PM Evernote: CoreData: error:  (External Records Support): symlink from path /Users/jwhitmore/Library/Containers/com.evernote.Evernote/Data/Library/Application Support/Evernote/accounts/Evernote/jbwhitmore/Evernote.sql to path /Users/jwhitmore/Library/Containers/com.evernote.Evernote/Data/Library/CoreData/com.evernote.Evernote/24458A30-8292-4A14-8D69-EFBA68CA25EE/.support/store-file : Error Domain=NSCocoaErrorDomain Code=516 "The file “store-file” couldn’t be saved in the folder “.support” because a file with the same name already exists." UserInfo=0x118ba9050 {NSFilePath=/Users/jwhitmore/Library/Containers/com.evernote.Evernote/Data/Library/CoreData/com.evernote.Evernote/24458A30-8292-4A14-8D69-EFBA68CA25EE/.support/store-file, NSUnderlyingError=0x1116b1200 "The operation couldn’t be completed. File exists"}
2014-05-05 17.40.42 5:40:42.745 PM com.apple.backupd: Starting standard backup
2014-05-05 17.40.42 5:40:42.889 PM Evernote: CoreData: error:  (External Records Support): symlink from path /Users/jwhitmore/Library/Containers/com.evernote.Evernote/Data/Library/Application Support/Evernote/accounts/Evernote/jbwhitmore/Evernote.sql to path /Users/jwhitmore/Library/Containers/com.evernote.Evernote/Data/Library/CoreData/com.evernote.Evernote/24458A30-8292-4A14-8D69-EFBA68CA25EE/.support/store-file : Error Domain=NSCocoaErrorDomain Code=516 "The file “store-file” couldn’t be saved in the folder “.support” because a file with the same name already exists." UserInfo=0x10442b000 {NSFilePath=/Users/jwhitmore/Library/Containers/com.evernote.Evernote/Data/Library/CoreData/com.evernote.Evernote/24458A30-8292-4A14-8D69-EFBA68CA25EE/.support/store-file, NSUnderlyingError=0x10444cbb0 "The operation couldn’t be completed. File exists"}
2014-05-05 17.40.43 5:40:43.705 PM com.apple.backupd: Error -35 while resolving alias to backup target
2014-05-05 17.40.44 5:40:44.000 PM kernel: nspace-handler-set-snapshot-time: 1399275645
2014-05-05 17.50.45 5:50:45.000 PM kernel: sav: [EWOULDBLOCK][vnode:0xffffff801f261d90][original:0xffffff801f261d90][callback: 0 count:265 ] onaccessctl_check:1825 result:0 disconnected:0
2014-05-05 17.50.45 5:50:45.000 PM kernel: sav: current scan list:
2014-05-05 17.50.45 5:50:45.000 PM kernel: sav: (pid 564 [mtmd], vnode 0xffffff801f261d90 [/Users/jwhitmore/Library/Application Support/Google/Chrome/Default/Session Storage/008623.log], [context 0xffffff8015d96050] [result 0] [setup 0] [disconnected 0] [vfsbusy 0]) - 1 waiter(s)
2014-05-05 17.50.45 5:50:45.000 PM kernel: sav: available kctl entries: 9
2014-05-05 17.50.45 5:50:45.000 PM kernel: sav: onaccess_send: NULL target or context; request:0 kctl_entry:0xffffff801c359000
2014-05-05 17.50.45 5:50:45.000 PM kernel: sav: onaccess_send: not SAV_KCTL_REQ_COMPLETE, return ENOMEM
2014-05-05 17.50.45 5:50:45.000 PM kernel: sav: onaccess_send: NULL target or context; request:0 kctl_entry:0xffffff801c359000
2014-05-05 17.50.45 5:50:45.000 PM kernel: sav: onaccess_send: not SAV_KCTL_REQ_COMPLETE, return ENOMEM
2014-05-05 17.50.45 5:50:45.000 PM kernel: sav: onaccess_send: NULL target or context; request:3 kctl_entry:0xffffff801c359000
2014-05-05 17.50.45 5:50:45.000 PM kernel: sav: onaccess_send: SAV_KCTL_REQ_COMPLETE, intercheck_done()
2014-05-05 17.50.46 5:50:46.066 PM com.apple.backupd: Backup failed with error: 19
2014-05-05 17.50.47 5:50:47.000 PM kernel: nspace-handler-unblock: did not find token 167909
2014-05-05 17.50.48 5:50:48.977 PM Evernote: CoreData: error:  (External Records Support): symlink from path /Users/jwhitmore/Library/Containers/com.evernote.Evernote/Data/Library/Application Support/Evernote/accounts/Evernote/jbwhitmore/Evernote.sql to path /Users/jwhitmore/Library/Containers/com.evernote.Evernote/Data/Library/CoreData/com.evernote.Evernote/24458A30-8292-4A14-8D69-EFBA68CA25EE/.support/store-file : Error Domain=NSCocoaErrorDomain Code=516 "The file “store-file” couldn’t be saved in the folder “.support” because a file with the same name already exists." UserInfo=0x118659780 {NSFilePath=/Users/jwhitmore/Library/Containers/com.evernote.Evernote/Data/Library/CoreData/com.evernote.Evernote/24458A30-8292-4A14-8D69-EFBA68CA25EE/.support/store-file, NSUnderlyingError=0x11c088100 "The operation couldn’t be completed. File exists"}
2014-05-05 17.50.49 5:50:49.254 PM com.jamfsoftware.task.Every 30 Minutes: Checking for policies triggered by "recurring check-in"...
2014-05-05 17.50.51 5:50:51.758 PM com.jamfsoftware.task.Every 30 Minutes: No policies were found for the "recurring check-in" trigger.
2014-05-05 17.50.57 5:50:57.923 PM Evernote: CoreData: error:  (External Records Support): symlink from path /Users/jwhitmore/Library/Containers/com.evernote.Evernote/Data/Library/Application Support/Evernote/accounts/Evernote/jbwhitmore/Evernote.sql to path /Users/jwhitmore/Library/Containers/com.evernote.Evernote/Data/Library/CoreData/com.evernote.Evernote/24458A30-8292-4A14-8D69-EFBA68CA25EE/.support/store-file : Error Domain=NSCocoaErrorDomain Code=516 "The file “store-file” couldn’t be saved in the folder “.support” because a file with the same name already exists." UserInfo=0x11b6e51c0 {NSFilePath=/Users/jwhitmore/Library/Containers/com.evernote.Evernote/Data/Library/CoreData/com.evernote.Evernote/24458A30-8292-4A14-8D69-EFBA68CA25EE/.support/store-file, NSUnderlyingError=0x118b8ad90 "The operation couldn’t be completed. File exists"}
2014-05-05 17.51.16 5:51:16.000 PM kernel: CODE SIGNING: cs_invalid_page(0x1000): p=35417[GoogleSoftwareUp] clearing CS_VALID
2014-05-05 17.52.32 5:52:32.240 PM com.apple.kextd: Can't create kext cache under / - owner not root.
2014-05-05 17.52.32 5:52:32.522 PM com.apple.usbmuxd: Ignored device, IOCreatePlugInInterfaceForService failed: 0xe00002be
2014-05-05 17.52.43 5:52:43.968 PM SophosWebD: <SMENode: 0x7fcc2a62d000> localNode csc:1ERROR! encountered an error while writing to outputstream| error:Error Domain=NSPOSIXErrorDomain Code=32 "The operation couldn’t be completed. Broken pipe" UserInfo=0x7fcc2ba03db0 {}
2014-05-05 17.53.19 5:53:19.232 PM iTunes: Entered:_AMMuxedVersion2DeviceConnected, mux-device:32

In realtà sembra che potrebbe avere qualche indizio.