Crash on iMac 27"

[TerenceW]

Hi All,

I was running an online training yesterday and realised my mouse and keyboard were no longer working. This has happened before and I've had to force shut down in order to get everything back. Yesterday, of course, I couldn't. After a while, the screen went black, though the webcam was still working and a text message to my phone said the class could still see and hear me.

After a few minutes (fortunately, just as the session was ending) there was a series of loud chimes before everything stopped.

Rebooted, and all seems fine... but now I'm having the heebies because I've got more classes to do next week! No idea where to look to find out what the problem is, so I hope somebody here can help.

Terence

 

[RemarkabLee]

Hi All,

I was running an online training yesterday and realised my mouse and keyboard were no longer working. This has happened before and I've had to force shut down in order to get everything back. Yesterday, of course, I couldn't. After a while, the screen went black, though the webcam was still working and a text message to my phone said the class could still see and hear me.

After a few minutes (fortunately, just as the session was ending) there was a series of loud chimes before everything stopped.

Rebooted, and all seems fine... but now I'm having the heebies because I've got more classes to do next week! No idea where to look to find out what the problem is, so I hope somebody here can help.

Terence

Applications > Utilities > Console. Have a look in there for details about what happened at the time of the issues. The problem may have been caused by an Application (what were you using at the time?) or a general system issue.

If so, Google search for Rember, a memory tester utility and run a test. Are you using third party RAM? This can be the cause for random crashes sometimes...

 

[TerenceW]

Applications > Utilities > Console. Have a look in there for details about what happened at the time of the issues. The problem may have been caused by an Application (what were you using at the time?) or a general system issue.

If so, Google search for Rember, a memory tester utility and run a test. Are you using third party RAM? This can be the cause for random crashes sometimes...

Thank you - It's just happened again and after rebooting I had a look at the console. Thank you for that advice. I'm afraid the only bit I can understand though is: 'Stopping'! If you know about these things and if you have a couple minutes, this was what showed up:

21/02/2014 15:49:55.131 Google Chrome Helper[15733]: Process unable to create connection because the sandbox denied the right to lookup com.apple.coreservices.launchservicesd and so this process cannot talk to launchservicesd. : LSXPCClient.cp #426 ___ZN26LSClientToServerConnection21setupServerConnectionEiPK14__CFDictionary_block_invoke() q=com.apple.main-thread
21/02/2014 15:49:55.131 Google Chrome Helper[15733]: Process unable to create connection because the sandbox denied the right to lookup com.apple.coreservices.launchservicesd and so this process cannot talk to launchservicesd.
21/02/2014 15:49:55.139 Google Chrome Helper[15733]: CGSLookupServerRootPort: Failed to look up the port for "com.apple.windowserver.active" (1100)
21/02/2014 15:55:29.336 xpcproxy[15755]: assertion failed: 13B42: xpcproxy + 3438 [EE7817B0-1FA1-3603-B88A-BD5E595DA86F]: 0x2
21/02/2014 15:55:29.395 syncdefaultsd[15754]: *** -[IADomainCache init]: IA domains cache couldn't be read.
21/02/2014 15:55:29.395 syncdefaultsd[15754]: -[IAPluginManager allAListPlugins] [546] -- *** warning: we're on the slow path.
21/02/2014 15:55:29.488 com.apple.launchd[1]: (com.apple.WebKit.WebContent.176744DA-D37D-441B-AC94-94B9F24F472A[15718]) Could not terminate job: 3: No such process
21/02/2014 15:55:29.488 com.apple.launchd[1]: (com.apple.WebKit.WebContent.176744DA-D37D-441B-AC94-94B9F24F472A[15718]) Using fallback option to terminate job...
21/02/2014 15:55:29.499 com.apple.launchd[1]: (com.apple.WebKit.Networking.07AECEFA-4ECC-4A11-9B8F-AE87D42AAE94[14506]) Exited with code: 1
21/02/2014 15:55:45.000 kernel[0]: CODE SIGNING: cs_invalid_page(0x1000): p=15756[GoogleSoftwareUp] final status 0x0, allow (remove VALID)ing page
21/02/2014 15:55:59.511 com.apple.usbmuxd[14503]: stopping.
21/02/2014 15:55:59.522 com.apple.usbmuxd[15757]: usbmuxd-327.4 on Jan 7 2014 at 01:25:07, running 64 bit
21/02/2014 15:57:02.856 WindowServer[160]: _CGXSetWindowBackgroundBlurRadius: Invalid window 0xffffffff

I totally understand if you don't have time for this, but I'm a total dunce at this sort of stuff!

Terence

 

[RemarkabLee]

Nothing immediately obvious, but I am walking the dog. Run Rember and see what the results are.

 

[TerenceW]

Nothing immediately obvious, but I am walking the dog. Run Rember and see what the results are.

Yes, I did that - no faults reported. I have had Crucial memory in there for about 18 months...

Thank you for helping!

Terence