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Introducing Simon 5!

Simon version 5 is now available. It is a massive update, introducing a much-requested feature: syncing the Simon data between multiple Macs, plus a Simon Status service, a Link Checker filter, improved Find filter, iMessage and Speak Error notifiers, a new app icon, and much more.

Important: please note that Simon 5 requires a minimum of macOS 10.12 (Sierra), and is a paid upgrade from Simon 4. Purchasers since September 1, 2020 automatically get a version 5 license (that also works in previous versions).

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AFP Mounts crashing FileMaker

I think that Simon is exposing a bug in OS X 10.5.x (I've seen this with 10.5.5 and 10.5.6).

I have Simon running and only doing two things: mounting and immediately unmounting AFP volumes from two different local AFP servers, every 30 seconds. These are just to confirm that AFP is running and successfully able to serve a volume on these servers. Just monitoring port 548 turned out to be not sufficient, because in certain failure scenarios port 548 is up and running, but volumes won't mount.

What I found was that my FileMaker Pro 9.0v3 app was randomly crashing after I started running Simon on my machine doing these AFP checks. At first I suspected a bad database or something, but I completely reinstalled it and did the usual troubleshooting steps, but to no avail....until I paused my Simon tasks. Then all was well. I can now reproduce the crash on demand (after a random delay of a few hours or so) whenever Simon is doing those AFP mounts.

I've attached a crashlog for FileMaker FWIW. I've also noticed that my VersionTracker Pro app is also sensitive to this same issue.

I'm not sure that there's anything that Simon can do about it, but perhaps get more information to report to Apple as a bug in OS X 10.5.x?

FileMaker Pro_2008-12-12-165025_JohnD-Mac-Pro.crash_.txt53.98 KB
David Sinclair's picture

Re: AFP Mounts crashing FileMaker

Thanks for letting me know of this. It does sound rather weird.

JohnDCCIU's picture

FileMaker Trial & AFP server for reproducing

If you have the time/urge to see if you can reproduce this bug, a FileMaker Pro v9 trial can be had at and I'd be happy to provide you with an AFP login to give it a try on the same servers that I'm using here.