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Doug Niven1 Author

Level 1

49 points

AFP connections dropping on 10.8.5 Server

We are experiencing a very odd problem when AFP connections to our server are dropping part way through, which often then makes the client machine crash and force a hard reboot.

AFP logs on the server show nothing, but the /var/log/system.log events below show the disconnection as it happens.

Note I have installed the 10.8.5 Combo Updater, reinstalled the Server.app from the AppStore, experienced the same on various client machines, and seen the same problem.

We have plenty of disk space on both sides and the folder in question are about 40GB.

Disk Warrior on both ends has been used already, nothing interesting found.

Oddly enough connecting via SMB does not cause these problems.

Originally I thought it might be network related, but I tried connecting an Ethernet cable directly between client and server (bypassing the switch) and saw the same problem.

I can only surmise a recent OSX update (not sure if this problem is on the server end or client end) caused this problem.

Here are the log details:

Oct 7 18:28:14 frankie.example.com KernelEventAgent[46]: tid 00000000 received event(s) VQ_NOTRESP (1)

Oct 7 18:28:14 frankie.example.com KernelEventAgent[46]: tid 00000000 type 'afpfs', mounted on '/Volumes/INCOMING', from '//tony@ml.example.com/INCOMING', not responding

Oct 7 18:28:14 frankie kernel[0]: ASP_TCP Disconnect: triggering reconnect by bumping reconnTrigger from curr value 0 on so 0xffffff801e112ef0

Oct 7 18:28:14 frankie kernel[0]: AFP_VFS afpfs_DoReconnect started /Volumes/INCOMING prevTrigger 0 currTrigger 1

Oct 7 18:28:14 frankie kernel[0]: AFP_VFS afpfs_DoReconnect: doing reconnect on /Volumes/INCOMING

Oct 7 18:28:14 frankie kernel[0]: AFP_VFS afpfs_DoReconnect: posting to KEA EINPROGRESS for /Volumes/INCOMING

Oct 7 18:28:14 frankie kernel[0]: AFP_VFS afpfs_DoReconnect: Max reconnect time: 30 secs, Connect timeout: 15 secs for /Volumes/INCOMING

Oct 7 18:28:14 frankie kernel[0]: AFP_VFS afpfs_DoReconnect: connect to the server /Volumes/INCOMING

Oct 7 18:28:14 frankie kernel[0]: AFP_VFS afpfs_DoReconnect: Logging in with uam 10 /Volumes/INCOMING

Oct 7 18:28:14 frankie.example.com KernelEventAgent[46]: tid 00000000 found 1 filesystem(s) with problem(s)

Oct 7 18:28:14 frankie kernel[0]: AFP_VFS afpfs_DoReconnect: Restoring session /Volumes/INCOMING

Any ideas, suggestions appreciated!

OS X Server, 10.8.5

Posted on Oct 8, 2013 8:38 AM

22 replies

Doug Niven1 Author

Level 1

49 points

Nov 6, 2013 12:26 PM in response to beatspminute

Yup, upgrading server to 10.9 fixed everything, and was also the easiest server upgrade I remember: done in less than an hour, with all settings intact except for System Preferences > Sharing > Remote Login that needed tweaking to allow the correct user SSH access.

Nov 17, 2013 9:59 AM in response to beatspminute

Just a quick question: Did you upgrade all your clients as well? Or just the server to 10.9?

thanks.

Jan 28, 2014 9:17 AM in response to Rob Rocket

I have the same issue (Mac OS 10.8.5 client workstations hang during stalled file trasfers or while deleting files, forcing a hard reboot):

Server Version: Mac OS 10.9.1 Mavericks Server

Clients Version: Mac OS 10.8.5 and Mac OS 10.6.8

The problem never happens to:

- Mac OS 10.6.8 users

- Mac OS 10.8.5 and 10.6.8 users that are local (in the same building and on the same LAN as the Mavericks Server)

The problem only happens to:

- Mac OS 10.8.5 users

- Mac OS 10.8.5 users that are accessing the Mavericks server over the WAN (wide area network)

Unsucessful Attempts to resolve:

- Upgrading the server from Mac OS 10.8.x server to Mac OS 10.9.x server

mikejang

Level 1

0 points

Feb 5, 2014 10:50 AM in response to Doug Niven1

Odd bit -- I'm having this problem on Mavericks -- but everything is fine when I use the IP and not the FQDN.

Feb 23, 2014 11:53 AM in response to KeeperOfTheOrchard

Have you found a resolution and if so what was it. Having similar issue...

Feb 24, 2014 6:11 AM in response to Alan@BixPix

After working through this issue with Apple engineers and providing them with crash logs (and a lot of other info), Apple said that there is a bug in Mac OS 10.8.5 which has been fixed in Mac OS 10.9. There are no plans to release a fix for Mac OS 10.8.x

Aug 6, 2014 7:39 PM in response to Doug Niven1

Hi,

We've went through most of all you've expeienced. Since nothing has changed in the hardware when we went from 10.8.4 to 10.8.5, I was sure that the problem is software-related, and it's introduced by the update. In my opinion, this is a bug in the Intel network driver in the AFP part of the networking. I installed a third-party NIC (from Sonnet), which has a different brand of network chip (I guess it's Aetheros), and directed all the traffic through this new card. Ooops, the problem disappeared immediately. I remember there is an even cheaper option for such a third-party card on Amazon.

AFP connections dropping on 10.8.5 Server