Seems that method of getting the UID only works in Mountain Lion.
Anyway, I got it from Terminal and the 'id' command. As I thought, UID 502 is me (my normal logon).
... Graham

Sam - MacAmbulance <mailto:[email protected]>
18 August 2013 15:53
XPC Is the XProtect anti-malware service from Apple, difficult to say why it would be crashing though. Sounds like the xpc server can't authenticate the user with ID 502. Try system preferences > Users > right click each user > advanced > which one has the ID 502?

Regards

Sam

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Graham Street <mailto:[email protected]>
18 August 2013 13:40
Hi Sam

Found it and 'force quit' the process. It restarted itself with a new PID number. However, no change. No SHARED heading in the Finder sidebar and no computers listed for sharing.

I'm not certain, but its possible this has only been happening since late on 15 Aug when the computer ran really slowly and Finder eventually locked up. The console was filling with 100s of messages like the ones below. I had to force the Mac Pro off and then restart it. A Google search indicates this seems to be something to do with an opendirectoryd bug and may be unconnected to the problem I have now. Everything else seems fine..

15/08/2013 22:41:11.592 xpchelper: getpwuid_r() failed for UID: 502, ret: 0, errno: 0 15/08/2013 22:41:11.593 com.apple.launchd: (com.apple.xpchelper.F6010000-0000-0000-0000-000000000000[36039]) Exited with code: 1 15/08/2013 22:41:11.617 xpchelper: getpwuid_r() failed for UID: 502, ret: 0, errno: 0 15/08/2013 22:41:11.619 com.apple.launchd: (com.apple.xpchelper.F6010000-0000-0000-0000-000000000000[36040]) Exited with code: 1

Regards, Graham


Sam - MacAmbulance <mailto:[email protected]>
18 August 2013 13:17
Hi Graham

Try Utilities > Activity Monitor > Restart the mdnsresponder process.

Regards

Sam

MacAmbulance
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  MacAmbulance Ltd.


    Providing Affordable Mac/PC Support and Web Development

*Sam Mullen*
+44 (0)7747778022
[email protected] <mailto:[email protected]>
www.macambulance.co.uk <http://www.macambulance.co.uk>
MacAmbulance Ltd. is a registered company in England & Wales, registration number 8466597 This email is intended solely for the addressed recipients and may contain privileged or confidential information. If you have received this email in error please notify the sender and delete the email immediately.




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Graham Street <mailto:[email protected]>
18 August 2013 12:58
We have three computers on our network ... Mac Pro (Lion), iMac (Lion), MacBookAir (Mountain Lion)
In System Preferences, Sharing ... all have File Sharing switched on.

On the iMac, in Finder, you can see see the other 2 computers in the Sidebar (under SHARED).
On the MacBook Air, you can also see the other 2 computers.
On the Mac Pro, neither of the other computers appears and neither does the SHARED heading. In the Mac Pro Finder Preferences (Sidebar) all the 'shared' options are ticked.

On the Mac Pro it was always possible to see the other two computers until sometime in the last few days.
Anyone got any ideas what's gone wrong and/or what can fix this?

Thanks, Graham

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