Macbook Air crashes: Any ideas?

Hi everyone,

My Macbook Air (running 10.7.2) has shut down twice for no apparent
reason in the past 20 minutes. This has never happened before. If anyone
has any thoughts about this, I'd greatly appreciate them.

I don't know if this matters, but both times the computer was unplugged,
though near fully charged. I've never had a problem (yet) when the
computer is plugged in.

I don't know how to read Console logs. I'll post the logs below from the
times of the crashes, and if anyone sees anything valuable, that would
be great. The first shutdown happened at 1:25. The second one happened,
I think, at about 1:29 or 1:30. I get the same message about crashes at
1:25:30.653 and 1:29:38.927

My main question is if this is a hardware or software issue. I'd been
thinking of doing a clean reinstall of Lion anyway, so if that will help
I'll be happy to do it.

Thanks very much for any help,
ez

1/10/12 12:22:27.905 PM Mail: Using V2 Layout
1/10/12 12:29:27.562 PM Mail: Using V2 Layout

1/10/12 1:25:30.653 PM com.apple.launchd.peruser.503:
(com.apple.ReportCrash) Falling back to default Mach exception handler.
Could not find: com.apple.ReportCrash.Self
1/10/12 1:25:30.656 PM com.apple.launchctl.Aqua: load: option requires
an argument -- D
1/10/12 1:25:30.656 PM com.apple.launchctl.Aqua: usage: launchctl load
[-wF] [-D <user|local|network|system|all>] paths...
1/10/12 1:25:30.787 PM com.apple.launchd.peruser.503:
(com.apple.launchctl.Aqua[121]) Exited with code: 1
1/10/12 1:25:31.134 PM talagent:
SecKeychainItemCreateFromContent(kSecGenericPasswo rdItemClass,
&attributeList, sizeof encodedKey, encodedKey, defaultKeychain,
accessRef, &sKeychainBitmapPasswordItemRef) produced OSStatus -25293 on
line 1476
1/10/12 1:25:31.956 PM com.apple.dock.extra: Could not connect the
action buttonPressed: to target of class NSApplication
1/10/12 1:25:31.958 PM com.apple.dock.extra: Could not connect the
action buttonPressed: to target of class NSApplication
1/10/12 1:25:31.960 PM com.apple.dock.extra: Could not connect the
action buttonPressed: to target of class NSApplication
1/10/12 1:25:31.966 PM com.apple.dock.extra: Could not connect the
action buttonPressed: to target of class NSApplication
1/10/12 1:25:34.455 PM [0x0-0x9009].com.apple.iTunes: The plugin 'Quartz
Composer Visualizer' failed to load because it has the wrong CPU
architecture for this version of iTunes. (3585)
1/10/12 1:25:45.544 PM firefox: -_scrollPhase is deprecated for
NSScrollWheel. Please use -momentumPhase.
1/10/12 1:25:45.545 PM firefox: -_continuousScroll is deprecated for
NSScrollWheel. Please use -hasPreciseScrollingDeltas.
1/10/12 1:25:45.545 PM firefox: -deviceDeltaY is deprecated for
NSScrollWheel. Please use -scrollingDeltaY.
1/10/12 1:25:45.547 PM firefox: -deviceDeltaX is deprecated for
NSScrollWheel. Please use -scrollingDeltaX.
1/10/12 1:25:45.748 PM [0x0-0x7007].org.mozilla.firefox: Running global
cleanup code from study base classes.
1/10/12 1:25:57.083 PM [0x0-0x9009].com.apple.iTunes: Returning 0x0.
Advertising wake service for libraryIdentifier "78ACDCB11C37E9EA".
1/10/12 1:26:30.933 PM 1PasswordAgent: Starting 1PasswordAgent 3.8.5
#31141 built Sep 8 2011 14:47:05
1/10/12 1:26:30.937 PM 1PasswordAgent: Trying to load
Localizable.strings [English] from the main bundle
1/10/12 1:26:30.941 PM 1PasswordAgent: Cannot find English version,
using English localization for Localizable.strings
1/10/12 1:26:31.016 PM 1PasswordAgent: reloadAllObjects
1/10/12 1:26:31.023 PM 1PasswordAgent: Failed to load directory contents
[file://localhost/Users/ebrier2/Library/Application%20Support/1Password/1Password.agilekeychain/data/default]:
Error Domain=NSCocoaErrorDomain Code=260 "The file “default” couldn’t be
opened because there is no such file." UserInfo=0x10036ad50
{NSURL=file://localhost/Users/ebrier2/Library/Application%20Support/1Password/1Password.agilekeychain/data/default,
NSFilePath=/Users/ebrier2/Library/Application
Support/1Password/1Password.agilekeychain/data/default,
NSUnderlyingError=0x10036ab50 "The operation couldn’t be completed. No
such file or directory"}
1/10/12 1:26:31.079 PM 1PasswordAgent: Database
(AGHtmlDatabase:file://localhost/Users/ebrier2/Library/Application%20Support/1Password/1Password.agilekeychain/)
load time [NSOperationQueue]: 0.007+0.003 (0 objects)
1/10/12 1:26:34.541 PM com.apple.Finder: Dropbox: Entered
INJECT_pthread_entry
1/10/12 1:26:34.541 PM com.apple.Finder: Dropbox: Installing event loop
timer
1/10/12 1:26:34.541 PM com.apple.Finder: Dropbox: proc: 0x110052e5b
1/10/12 1:26:34.541 PM com.apple.Finder: Dropbox: upp: 0x110052e5b
1/10/12 1:26:34.541 PM com.apple.Finder: Dropbox: InstallEventLoopTimer:
0x7fff8ffd30de
1/10/12 1:26:34.541 PM com.apple.Finder: Dropbox: GetMainEventLoop:
0x7fff8ff94861
1/10/12 1:26:34.541 PM com.apple.Finder: Dropbox: timer installed!
1/10/12 1:26:34.541 PM com.apple.Finder: Dropbox: Loading
/Library/DropboxHelperTools/Dropbox_u503/DropboxBundle.bundle/Contents/MacOS/DropboxBundle
1/10/12 1:26:34.542 PM com.apple.Finder: Dropbox: dlopen returned:
0x7fd8c0ed31b0
1/10/12 1:26:34.542 PM com.apple.Finder: module initializer in main
thread?: 1
1/10/12 1:26:35.737 PM SafariDAVClient: ServerNotifications: Setting
delegate to APSD
1/10/12 1:26:36.414 PM SafariDAVClient: Subscription request completed

1/10/12 1:27:23.679 PM com.apple.launchd.peruser.503:
(com.apple.mdworker.prescan.0) Throttling respawn: Will start in 4 seconds

1/10/12 1:29:38.927 PM com.apple.launchd.peruser.503:
(com.apple.ReportCrash) Falling back to default Mach exception handler.
Could not find: com.apple.ReportCrash.Self
1/10/12 1:29:38.930 PM com.apple.launchctl.Aqua: load: option requires
an argument -- D
1/10/12 1:29:38.930 PM com.apple.launchctl.Aqua: usage: launchctl load
[-wF] [-D <user|local|network|system|all>] paths...
1/10/12 1:29:39.072 PM com.apple.launchd.peruser.503:
(com.apple.launchctl.Aqua[120]) Exited with code: 1
1/10/12 1:29:39.407 PM talagent:
SecKeychainItemCreateFromContent(kSecGenericPasswo rdItemClass,
&attributeList, sizeof encodedKey, encodedKey, defaultKeychain,
accessRef, &sKeychainBitmapPasswordItemRef) produced OSStatus -25293 on
line 1476
1/10/12 1:29:39.997 PM com.apple.dock.extra: Could not connect the
action buttonPressed: to target of class NSApplication
1/10/12 1:29:40.000 PM com.apple.dock.extra: Could not connect the
action buttonPressed: to target of class NSApplication
1/10/12 1:29:40.001 PM com.apple.dock.extra: Could not connect the
action buttonPressed: to target of class NSApplication
1/10/12 1:29:40.003 PM com.apple.dock.extra: Could not connect the
action buttonPressed: to target of class NSApplication
1/10/12 1:29:43.588 PM [0x0-0x9009].com.apple.iTunes: The plugin 'Quartz
Composer Visualizer' failed to load because it has the wrong CPU
architecture for this version of iTunes. (3585)
1/10/12 1:29:57.369 PM [0x0-0x7007].org.mozilla.firefox: Running global
cleanup code from study base classes.
1/10/12 1:30:06.529 PM [0x0-0x9009].com.apple.iTunes: Returning 0x0.
Advertising wake service for libraryIdentifier "78ACDCB11C37E9EA".
1/10/12 1:30:40.912 PM 1PasswordAgent: Starting 1PasswordAgent 3.8.5
#31141 built Sep 8 2011 14:47:05
1/10/12 1:30:40.923 PM 1PasswordAgent: Trying to load
Localizable.strings [English] from the main bundle
1/10/12 1:30:40.933 PM 1PasswordAgent: Cannot find English version,
using English localization for Localizable.strings
1/10/12 1:30:41.034 PM 1Password Helper: Starting 1Password Helper 3.9.2
#39200.003 built Nov 15 2011 18:59:05
1/10/12 1:30:41.036 PM com.agilebits.onepassword-osx-helper: Jan 10
13:30:41 Evans-MacBook-Air.local 1Password Helper[203] <Notice>:
[39200.003] Starting 1Password Helper 3.9.2 #39200.003 built Nov 15 2011
18:59:05
1/10/12 1:30:41.046 PM 1PasswordAgent: reloadAllObjects
1/10/12 1:30:41.123 PM 1PasswordAgent: Failed to load directory contents
[file://localhost/Users/ebrier2/Library/Application%20Support/1Password/1Password.agilekeychain/data/default]:
Error Domain=NSCocoaErrorDomain Code=260 "The file “default” couldn’t be
opened because there is no such file." UserInfo=0x101863770
{NSURL=file://localhost/Users/ebrier2/Library/Application%20Support/1Password/1Password.agilekeychain/data/default,
NSFilePath=/Users/ebrier2/Library/Application
Support/1Password/1Password.agilekeychain/data/default,
NSUnderlyingError=0x101863570 "The operation couldn’t be completed. No
such file or directory"}
1/10/12 1:30:41.126 PM com.agilebits.onepassword-osx-helper: Jan 10
13:30:41 Evans-MacBook-Air.local 1Password Helper[203] <Notice>:
[39200.003] Initializing AGHtmlDatabase object with path
'file://localhost/Users/ebrier2/Library/Containers/com.agilebits.onepassword-osx-helper/Data/Documents/1Password.agilekeychain/'.
1/10/12 1:30:41.132 PM 1PasswordAgent: Database
(AGHtmlDatabase:file://localhost/Users/ebrier2/Library/Application%20Support/1Password/1Password.agilekeychain/)
load time [NSOperationQueue]: 0.078+0.005 (0 objects)
1/10/12 1:30:41.134 PM com.agilebits.onepassword-osx-helper: Jan 10
13:30:41 Evans-MacBook-Air.local 1Password Helper[203] <Notice>:
[39200.003] watchProfile
1/10/12 1:30:41.137 PM 1Password Helper: reloadAllObjects
1/10/12 1:30:41.140 PM com.agilebits.onepassword-osx-helper: Jan 10
13:30:41 Evans-MacBook-Air.local 1Password Helper[203] <Notice>:
[39200.003] reloadAllObjects
1/10/12 1:30:41.156 PM 1Password Helper: Database
(AGHtmlDatabase:file://localhost/Users/ebrier2/Library/Containers/com.agilebits.onepassword-osx-helper/Data/Documents/1Password.agilekeychain/)
load time [Cache]: 0.018+0.000 (61 objects)
1/10/12 1:30:41.157 PM com.agilebits.onepassword-osx-helper: Jan 10
13:30:41 Evans-MacBook-Air.local 1Password Helper[203] <Notice>:
[39200.003] Database
(AGHtmlDatabase:file://localhost/Users/ebrier2/Library/Containers/com.agilebits.onepassword-osx-helper/Data/Documents/1Password.agilekeychain/)
load time [Cache]: 0.018+0.000 (61 objects)
1/10/12 1:30:41.159 PM com.agilebits.onepassword-osx-helper: Jan 10
13:30:41 Evans-MacBook-Air.local 1Password Helper[203] <Notice>:
[39200.003] Loaded
'/Applications/1Password.app/Contents/Library/LoginItems/1Password
Helper.app/Contents/Resources/DomainRules.js'
1/10/12 1:30:41.165 PM com.agilebits.onepassword-osx-helper: Jan 10
13:30:41 Evans-MacBook-Air.local 1Password Helper[203] <Notice>:
[39200.003] [AES] Starting JSE server on port 10191
1/10/12 1:30:41.165 PM com.agilebits.onepassword-osx-helper: Jan 10
13:30:41 Evans-MacBook-Air.local 1Password Helper[203] <Notice>:
[39200.003] Starting XPC
1/10/12 1:30:41.310 PM com.agilebits.onepassword-osx-helper: Jan 10
13:30:41 Evans-MacBook-Air.local 1Password Helper[203] <Notice>:
[39200.003] Backup completed:
''file://localhost/Users/ebrier2/Library/Containers/com.agilebits.onepassword-osx-helper/Data/Library/Application%20Support/1Password/Backups/1Password%202012-01-10%20133041%20(61%20items).agilekeychain_zip'
1/10/12 1:30:44.338 PM com.apple.Finder: Dropbox: Entered
INJECT_pthread_entry
1/10/12 1:30:44.338 PM com.apple.Finder: Dropbox: Installing event loop
timer
1/10/12 1:30:44.338 PM com.apple.Finder: Dropbox: proc: 0x10e31de5b
1/10/12 1:30:44.338 PM com.apple.Finder: Dropbox: upp: 0x10e31de5b
1/10/12 1:30:44.338 PM com.apple.Finder: Dropbox: InstallEventLoopTimer:
0x7fff97de80de
1/10/12 1:30:44.338 PM com.apple.Finder: Dropbox: GetMainEventLoop:
0x7fff97da9861
1/10/12 1:30:44.338 PM com.apple.Finder: Dropbox: timer installed!
1/10/12 1:30:44.338 PM com.apple.Finder: Dropbox: Loading
/Library/DropboxHelperTools/Dropbox_u503/DropboxBundle.bundle/Contents/MacOS/DropboxBundle
1/10/12 1:30:44.338 PM com.apple.Finder: Dropbox: dlopen returned:
0x7ff09b648000
1/10/12 1:30:44.338 PM com.apple.Finder: module initializer in main
thread?: 1
1/10/12 1:30:45.986 PM ubd: AOSKit ERROR: Failed to acquire lock for
path (/Users/ebrier2/Library/Application
Support/iCloud/Accounts/87043880.lock), openErr=35, numAttempts=99
1/10/12 1:30:46.243 PM PhotoStreamAgent: AOSKit ERROR: Failed to acquire
lock for path (/Users/ebrier2/Library/Application
Support/iCloud/Accounts/87043880.lock), openErr=35, numAttempts=99
1/10/12 1:30:57.765 PM com.agilebits.onepassword-osx-helper: Jan 10
13:30:57 Evans-MacBook-Air.local 1Password Helper[203] <Notice>:
[39200.003] Cannot find front process
1/10/12 1:30:59.522 PM SafariDAVClient: ServerNotifications: Setting
delegate to APSD
1/10/12 1:31:00.255 PM SafariDAVClient: Subscription request completed
1/10/12 1:33:58.291 PM com.apple.mdworker.i386.0: objc[261]: Class
NLAssertionHandler is implemented in both /Library/Spotlight/Microsoft
Office.mdimporter/Contents/MacOS/../Frameworks/MetroFramework.framework/Versions/12/MetroFramework
and /Applications/Microsoft Office 2011/Microsoft
Outlook.app/Contents/Library/Spotlight/Microsoft
Outlook.mdimporter/Contents/MacOS/../../../../../../../Office/mbuinstrument.framework/Versions/14/mbuinstrument.
One of the two will be used. Which one is undefined.

On 1/10/12 4:57 PM, Jolly Roger wrote:
> In article<jei4lr$g8d$>, Evan Z<> wrote:
>
>> Hi everyone,
>>
>> My Macbook Air (running 10.7.2) has shut down twice for no apparent
>> reason in the past 20 minutes. This has never happened before. If anyone
>> has any thoughts about this, I'd greatly appreciate them.
>>
>> I don't know if this matters, but both times the computer was unplugged,
>> though near fully charged. I've never had a problem (yet) when the
>> computer is plugged in.

>> My main question is if this is a hardware or software issue. I'd been
>> thinking of doing a clean reinstall of Lion anyway, so if that will help
>> I'll be happy to do it.

> The /var/log/system.log (trimmed to messages around the times of the
> problem) would tell a lot more.

Thanks for the reply. It just happened again--once again, when the
computer was unplugged, after it had been working fine when it was
plugged in for hours.

Earlier today, Apple tech support had me reset the SMC and PRAM, but
apparently that didn't do the trick.

Anyway, here's the system.log info you mentioned--sorry if this is too
much to look at. The shutdown happened at 9:23. Any insights would be
greatly appreciated!

Thanks very much,
ez

an 10 21:20:55 Evans-MacBook-Air [0x0-0x92092].com.apple.iTunes[1363]:
Parent: Error or timeout on select
Jan 10 21:20:55 Evans-MacBook-Air [0x0-0x92092].com.apple.iTunes[1363]:
Child with pid 1377 exited normally
Jan 10 21:20:55: --- last message repeated 1 time ---
Jan 10 21:20:55 Evans-MacBook-Air [0x0-0x92092].com.apple.iTunes[1363]:
ATHostConnectionDestroy 0x7fbb2c85d870
Jan 10 21:20:55 Evans-MacBook-Air [0x0-0x92092].com.apple.iTunes[1363]:
Parent: Error or timeout on select
Jan 10 21:20:55 Evans-MacBook-Air [0x0-0x92092].com.apple.iTunes[1363]:
Child with pid 1378 exited normally
Jan 10 21:20:55 Evans-MacBook-Air [0x0-0x92092].com.apple.iTunes[1363]:
ATHostConnectionDestroy 0x7fbb2ae91fc0
Jan 10 21:20:57 Evans-MacBook-Air [0x0-0x92092].com.apple.iTunes[1363]:
Version from driver for Certificates 1
Jan 10 21:23:19 localhost bootlog[0]: BOOT_TIME 1326252199 0
Jan 10 21:23:22 localhost com.apple.launchd[1]: *** launchd[1] has
started up. ***
Jan 10 21:23:22 localhost fseventsd[19]: event logs in /.fseventsd out
of sync with volume. destroying old logs. (25503 2 25533)
Jan 10 21:23:22 localhost fseventsd[19]: log dir: /.fseventsd getting
new uuid: EC541F48-3721-47BB-A358-43D8B7A03929
Jan 10 21:23:23 localhost UserEventAgent[11]: starting
CaptiveNetworkSupport as SystemEventAgent built Jun 25 2011 01:16:59
Jan 10 21:23:23 localhost UserEventAgent[11]:
CaptiveNetworkSupport:CreateInterfaceWatchList:278 8 WiFi Devices Found.
Jan 10 21:23:23 localhost UserEventAgent[11]:
CaptiveNetworkSupport:CaptivePublishState:1211 en0 - PreProbe
Jan 10 21:23:23 localhost UserEventAgent[11]:
CaptiveNetworkSupport:CaptiveSCRebuildCache:81 Failed to get service order
Jan 10 21:23:23: --- last message repeated 1 time ---
Jan 10 21:23:23 localhost UserEventAgent[11]:
CaptiveNetworkSupport:CaptivePublishState:1211 en0 - PreProbe
Jan 10 21:23:23 localhost UserEventAgent[11]:
CaptiveNetworkSupport:CaptiveSCRebuildCache:81 Failed to get service order
Jan 10 21:23:23: --- last message repeated 1 time ---
Jan 10 21:23:23 localhost UserEventAgent[11]: CertsKeychainMonitor:
configuring
Jan 10 21:23:24 localhost airportd[25]: _processDLILEvent: en0 attached
(down)
Jan 10 21:23:24 localhost UserEventAgent[11]:
CaptiveNetworkSupport:CaptiveSCRebuildCache:81 Failed to get service order
Jan 10 21:23:24: --- last message repeated 1 time ---
Jan 10 21:23:24 localhost UserEventAgent[11]:
CaptiveNetworkSupport:CaptivePublishState:1211 en0 - PreProbe
Jan 10 21:23:24 localhost configd[14]: bootp_session_transmit:
bpf_write(en0) failed: Network is down (50)
Jan 10 21:23:24 localhost configd[14]: DHCP en0: INIT-REBOOT transmit failed
Jan 10 21:23:24 localhost UserEventAgent[11]: ServermgrdRegistration
cannot load config data
Jan 10 21:23:24 localhost UserEventAgent[11]: get_backup_share_points no AFP
Jan 10 21:23:24 localhost configd[14]: network configuration changed.
Jan 10 21:23:24 Evans-MacBook-Air configd[14]: setting hostname to
"Evans-MacBook-Air.local"
Jan 10 21:23:24 Evans-MacBook-Air systemkeychain[32]: done file:
/var/run/systemkeychaincheck.done
Jan 10 21:23:24 Evans-MacBook-Air com.apple.kextd[10]: Can't load
/System/Library/Extensions/AmbrosiaAudioSupport.kext - no code for
running kernel's architecture.
Jan 10 21:23:24 Evans-MacBook-Air com.apple.kextd[10]: Load
com.AmbrosiaSW.AudioSupport failed; removing personalities from kernel.
Jan 10 21:23:24 Evans-MacBook-Air com.apple.kextd[10]: Can't load
/System/Library/Extensions/AmbrosiaAudioSupport.kext - no code for
running kernel's architecture.
Jan 10 21:23:25 Evans-MacBook-Air com.apple.kextd[10]: Load
com.AmbrosiaSW.AudioSupport failed; removing personalities from kernel.
Jan 10 21:23:25 Evans-MacBook-Air com.apple.ucupdate.plist[51]:
ucupdate: Checked 1 update, no match found.
Jan 10 21:23:25 Evans-MacBook-Air com.apple.pfctl[59]: No ALTQ support
in kernel
Jan 10 21:23:25 Evans-MacBook-Air com.apple.pfctl[59]: ALTQ related
functions disabled
Jan 10 21:23:25 Evans-MacBook-Air com.apple.SystemStarter[53]: Starting
SymProtector
Jan 10 21:23:25 Evans-MacBook-Air mDNSResponder[62]: mDNSResponder
mDNSResponder-320.10 (Aug 2 2011 19:56:51) starting OSXVers 11
Jan 10 21:23:25 Evans-MacBook-Air com.apple.usbmuxd[50]: usbmuxd-263 on
Aug 23 2011 at 00:44:06, running 64 bit
Jan 10 21:23:25 Evans-MacBook-Air configd[14]: network configuration
changed.
Jan 10 21:23:25: --- last message repeated 1 time ---
Jan 10 21:23:25 Evans-MacBook-Air mDNSResponder[62]: D2D_IPC: Loaded
Jan 10 21:23:25 Evans-MacBook-Air mDNSResponder[62]: D2DInitialize succeeded
Jan 10 21:23:25 Evans-MacBook-Air mds[61]: (Normal) FMW: FMW 0 0
Jan 10 21:23:26 Evans-MacBook-Air netbiosd[90]: Unable to start NetBIOS
name service:
Jan 10 21:23:26 Evans-MacBook-Air loginwindow[64]: Login Window
Application Started
Jan 10 21:23:26 Evans-MacBook-Air mds[61]:
(/.Spotlight-V100/Store-V2/74967323-F6E6-4561-BF66-90BA969A2163)(Error)
IndexPath in openReverseStore:Successfully recovered from shadow with
state d00d0dd0
Jan 10 21:23:26 Evans-MacBook-Air MacaroniTool[78]: Starting Macaroni daemon
Jan 10 21:23:27 Evans-MacBook-Air configd[14]: network configuration
changed.
Jan 10 21:23:27 Evans-MacBook-Air UserEventAgent[11]:
CaptiveNetworkSupport:CaptivePublishState:1211 en0 - Probe
Jan 10 21:23:27 Evans-MacBook-Air UserEventAgent[11]:
CaptiveNetworkSupport:CNSPreferencesBuildSSIDLooku p:278 ssidLookup:
Jan 10 21:23:27 Evans-MacBook-Air UserEventAgent[11]: <empty>
Jan 10 21:23:27 Evans-MacBook-Air UserEventAgent[11]:
CaptiveNetworkSupport:CaptiveStartDetect:2343 Bypassing probe on
Vineland2 because it is protected and not on the exception list
Jan 10 21:23:27 Evans-MacBook-Air UserEventAgent[11]:
CaptiveNetworkSupport:CaptivePublishState:1211 en0 - Unknown
Jan 10 21:23:27 Evans-MacBook-Air configd[14]: network configuration
changed.
Jan 10 21:23:33 Evans-MacBook-Air ntpd[46]: proto: precision = 1.000 usec
Jan 10 21:23:33 Evans-MacBook-Air ntpd[46]: bind(25) AF_INET6
fe80::2a37:37ff:fe19:1868%4#123 flags 0x11 failed: Can't assign
requested address
Jan 10 21:23:33 Evans-MacBook-Air ntpd[46]: unable to create socket on
en0 (5) for fe80::2a37:37ff:fe19:1868#123
Jan 10 21:23:34 Evans-MacBook-Air com.apple.usbmuxd[50]:
_SendAttachNotification (thread 0x7fff735e6960): sending attach for
device
10:9a:dd:3b:01:1f@fe80::129a:ddff:fe3b:11f._apple-mobdev._tcp.local.:
_GetAddrInfoReplyReceivedCallback matched.
Jan 10 21:23:34 Evans-MacBook-Air usbmuxd[50]:
_AMDeviceConnectByAddressAndPort (thread 0x101f81000): IPv4
Jan 10 21:23:35 Evans-MacBook-Air loginwindow[64]: **DMPROXY** Found
`/System/Library/CoreServices/DMProxy'.
Jan 10 21:23:35 Evans-MacBook-Air com.apple.launchctl.LoginWindow[101]:
com.apple.findmymacmessenger: Already loaded
Jan 10 21:23:35 Evans-MacBook-Air airportd[25]: _doAutoJoin: Already
associated to “Vineland2”. Bailing on auto-join.
Jan 10 21:23:35 Evans-MacBook-Air loginwindow[64]: Login Window Started
Security Agent
Jan 10 21:23:35 Evans-MacBook-Air SecurityAgent[107]: Echo enabled
Jan 10 21:23:39 Evans-MacBook-Air SecurityAgent[107]: User info context
values set for admin
Jan 10 21:23:41: --- last message repeated 1 time ---
Jan 10 21:23:41 Evans-MacBook-Air SecurityAgent[107]: Login Window login
proceeding
Jan 10 21:23:42 Evans-MacBook-Air loginwindow[64]: Login Window -
Returned from Security Agent
Jan 10 21:23:42 Evans-MacBook-Air loginwindow[64]: USER_PROCESS: 64 console
Jan 10 21:23:42 Evans-MacBook-Air airportd[25]: _doAutoJoin: Already
associated to “Vineland2”. Bailing on auto-join.
Jan 10 21:23:42 Evans-MacBook-Air com.apple.launchd.peruser.502[118]
(com.apple.ReportCrash): Falling back to default Mach exception handler.
Could not find: com.apple.ReportCrash.Self
Jan 10 21:23:42 Evans-MacBook-Air com.apple.launchctl.Aqua[120]: load:
option requires an argument -- D
Jan 10 21:23:42 Evans-MacBook-Air com.apple.launchctl.Aqua[120]: usage:
launchctl load [-wF] [-D <user|local|network|system|all>] paths...
Jan 10 21:23:42 Evans-MacBook-Air com.apple.launchd.peruser.502[118]
(com.apple.launchctl.Aqua[120]): Exited with code: 1
Jan 10 21:23:42 Evans-MacBook-Air UserEventAgent[11]:
CaptiveNetworkSupport:CNSServerRegisterUserAgent:1 87 new user agent
port: 14343
Jan 10 21:23:43 Evans-MacBook-Air com.apple.dock.extra[158]: Could not
connect the action buttonPressed: to target of class NSApplication
Jan 10 21:23:43 Evans-MacBook-Air com.apple.dock.extra[158]: 2012-01-10
21:23:43.504 com.apple.dock.extra[158:1707] Could not connect the action
buttonPressed: to target of class NSApplication
Jan 10 21:23:43 Evans-MacBook-Air com.apple.dock.extra[158]: Could not
connect the action buttonPressed: to target of class NSApplication
Jan 10 21:23:43 Evans-MacBook-Air com.apple.dock.extra[158]: 2012-01-10
21:23:43.506 com.apple.dock.extra[158:1707] Could not connect the action
buttonPressed: to target of class NSApplication
Jan 10 21:23:43 Evans-MacBook-Air com.apple.dock.extra[158]: Could not
connect the action buttonPressed: to target of class NSApplication
Jan 10 21:23:43 Evans-MacBook-Air com.apple.dock.extra[158]: 2012-01-10
21:23:43.507 com.apple.dock.extra[158:1707] Could not connect the action
buttonPressed: to target of class NSApplication
Jan 10 21:23:43 Evans-MacBook-Air com.apple.dock.extra[158]: Could not
connect the action buttonPressed: to target of class NSApplication
Jan 10 21:23:43 Evans-MacBook-Air com.apple.dock.extra[158]: 2012-01-10
21:23:43.508 com.apple.dock.extra[158:1707] Could not connect the action
buttonPressed: to target of class NSApplication
Jan 10 21:23:53 Evans-MacBook-Air UserEventAgent[11]:
servermgr_certs[11] -[CertsRequestHandler(HelperAdditions)
identitiesFromKeychain:]: SecItemCopyMatching (err = -25300)
Jan 10 21:23:53 Evans-MacBook-Air com.apple.UserEventAgent-System[11]:
SecItemCopyMatching: The specified item could not be found in the keychain.
Jan 10 21:23:53 Evans-MacBook-Air UserEventAgent[11]:
servermgr_certs[11] -[CertsRequestHandler(HelperAdditions)
identitiesFromKeychain:]: SecItemCopyMatching (err = -25300)
Jan 10 21:23:53 Evans-MacBook-Air com.apple.UserEventAgent-System[11]:
SecItemCopyMatching: The specified item could not be found in the keychain.
Jan 10 21:23:53 Evans-MacBook-Air UserEventAgent[11]:
CertsKeychainMonitor: ready to process keychain & timer events
Jan 10 21:28:41 localhost bootlog[0]: BOOT_TIME 1326252521 0

In article <jej0v5$ip9$>, Evan Z <> wrote:

> On 1/10/12 4:57 PM, Jolly Roger wrote:
> > In article<jei4lr$g8d$>, Evan Z<> wrote:
> >
> >> Hi everyone,
> >>
> >> My Macbook Air (running 10.7.2) has shut down twice for no apparent
> >> reason in the past 20 minutes. This has never happened before. If anyone
> >> has any thoughts about this, I'd greatly appreciate them.
> >>
> >> I don't know if this matters, but both times the computer was unplugged,
> >> though near fully charged. I've never had a problem (yet) when the
> >> computer is plugged in.
>
> >> My main question is if this is a hardware or software issue. I'd been
> >> thinking of doing a clean reinstall of Lion anyway, so if that will help
> >> I'll be happy to do it.
>
> > The /var/log/system.log (trimmed to messages around the times of the
> > problem) would tell a lot more.
>
> Thanks for the reply. It just happened again--once again, when the
> computer was unplugged, after it had been working fine when it was
> plugged in for hours.
>
> Earlier today, Apple tech support had me reset the SMC and PRAM, but
> apparently that didn't do the trick.
>
> Anyway, here's the system.log info you mentioned--sorry if this is too
> much to look at. The shutdown happened at 9:23. Any insights would be
> greatly appreciated!
>
> Thanks very much,
> ez
>
[boot log deleted]

I think you should take your system into an Apple Genius Bar and have
them look at it. This behavior looks like a hardware error which no
amount of OS tweaking will fix.

--
DeeDee, don't press that button! DeeDee! NO! Dee...
[I filter all Goggle Groups posts, so any reply may be automatically ignored]

On 1/10/12 11:55 PM, Michael Vilain wrote:
> In article<jej0v5$ip9$>, Evan Z<> wrote:
>
>> On 1/10/12 4:57 PM, Jolly Roger wrote:

>>> The /var/log/system.log (trimmed to messages around the times of the
>>> problem) would tell a lot more.
>>
>> Thanks for the reply. It just happened again--once again, when the
>> computer was unplugged, after it had been working fine when it was
>> plugged in for hours.
>>
>> Earlier today, Apple tech support had me reset the SMC and PRAM, but
>> apparently that didn't do the trick.
>>
>> Anyway, here's the system.log info you mentioned--sorry if this is too
>> much to look at. The shutdown happened at 9:23. Any insights would be
>> greatly appreciated!

> [boot log deleted]
>
> I think you should take your system into an Apple Genius Bar and have
> them look at it. This behavior looks like a hardware error which no
> amount of OS tweaking will fix.

Thanks for the reply. That's what I'll do. After the last automatic
shutdown, the computer now says "Battery Is Not Charging," though the
light on the magsafe connector is green. Outside of that (for now), it
still works when it's plugged in.

I'll have to bring it to Apple, which is a bummer since I'm far from a
store.

Thanks for the help,
ez

On 1/11/12 9:44 AM, Jolly Roger wrote:
> In article<jej0v5$ip9$>, Evan Z<> wrote:

[...]

>> Earlier today, Apple tech support had me reset the SMC and PRAM, but
>> apparently that didn't do the trick.
>>
>> Anyway, here's the system.log info you mentioned--sorry if this is too
>> much to look at. The shutdown happened at 9:23. Any insights would be
>> greatly appreciated!

> No errors were logged, as I suspected. So your machine is powering
> itself off rather than doing a proper shutdown. That indicates a problem
> with power (the battery, the SMU, etc.). The best you can do is let
> Apple diagnose the machine to see what's wrong with it.

Thanks very much for taking a look. At least I know not to try to solve
this myself. I'll get back in touch with Apple today.

--
ez