Sophos Anti-Virus for Mac V7.3.1 is compatible with Mac OS X Lion

I think you need to qualify "compatible", as 7.3.1 appears to be incompatible with networked Time Capsules - it causes a lockup on my Mac if it's enabled when a Time Machine backup occurs.

Hmmm, seems odd, our testing never showed any issues like this. My home machine (also using a networked Time Capsule - aren't those great products?) works fine through the upgrade from 10.6.8 to 10.7, and of course I was running SAV Mac 7.3.1 at the time.

Any more people seen issues with SAV Mac at the time of their 10.7 upgrade? Its been very, very quiet.

Thanks!

I have also real problems with Sophos 7.3.1 and Lion. An app called 'intercheck' uses all of the CPU power. I understood it is a sophos app..?

Yes, Intercheck is the app that actually performs the scanning operations when files are accessed.

I've observed that the very first Time Machine backup will end up finding ~8GB of changed files, and the process of finding then backing up will definitely perform a lot of disk activity (and those operations are going to trigger the on-access anti-virus scanner). On my own MacBook Pro (first unibody model, 4Gb RAM, with about 400Gb of files) it took about an hour for the first backup to complete. The machine was slightly sluggish, although depending on your h/w, "sluggish" might either be an understatement or an overstatement.

Can you provide some details about your experience so far? What is your system currently doing and how long ago did you perform the upgrade?

If you switch off the on-access scanner does the performance improve? You should only do this temporarily, and avoid downloading files from the internet or untrusted servers (your machine won't be protected from accidentally copying a malicious file until you re-enable the on-access scanner).

Thanks for your feedback!

Hello

Since the installation of  Lion , approximately 24 hours before, the protocol lists dozens of error messages :

"com.sophos.intercheck: Schwerwiegender Fehler: Virus Detection Engine kann nicht initialisiert werden [0x00250760]

com.sophos.intercheck: Sophos Anti-Virus kann nicht fortfahren "

Translated :

Fatal error: virus detection engine can not be initialized [0x00250760]

com.sophos.intercheck: Sophos Anti-Virus can not continue

In the preferences I can not make changes, each time comes a new error message .

I have downloaded and reinstalled Sophos again. The same.

Have you restarted your computer during this process?  If the engine cannot be initialized, I've personally found that the only reliable fix is a reboot.  In Lion, this would likely need to be a clean reboot.

I am also having this issue with Lion on a Mid-2010 MacBook Pro running Sophos 7.3.1 

If On-Access scanner is running it causes networked Time Machine to hang after a few hundred megabytes. The moment you turn off On-Access scanning the performance returns to normal and the entire OS seems a tiny bit less slugish. I think something is hanging.

---

lyoko37 wrote:

I am also having this issue with Lion on a Mid-2010 MacBook Pro running Sophos 7.3.1 

If On-Access scanner is running it causes networked Time Machine to hang after a few hundred megabytes. The moment you turn off On-Access scanning the performance returns to normal and the entire OS seems a tiny bit less slugish. I think something is hanging.

---

Yes this is the problem. Intercheck is keeping Time Machine from back up. So TM and the intercheck app. fight for the prosessor. But because TM can not go on, while Intercheck keeps blocking TM. In between we see spotlight going nuts to index the machine, also using a lot of the prosessor.

A solution could be to switch Sophos off. But since this process causes the prosessor to overheat, and since you never know if it will not happen again sometime after you used your computer independent from TIme Mchine for a while, like I do on my MacBook Pro, the best thing is do delete the Sophos Anti-Virus. How bad I feel about that because it seemed to be so simple and neat.

I am now back on Intego for which I still have left a few months to use.

Lemon,

I am hoping that Sophos figures out a fix for this soon. I'm sure they will as I find it to be a lot less processor hungry compared to VirusBarrier. I'm guessing this was an oversight because it only occurs when doing the Time Machine backups off of a network drive.

I'll have to bump this about problems with Lion.  I just tried installing on Lion, and I can't get past the install.  When I get to the last screen, it says the installation failed.  There is never a shield in the taaskbar.

Ideas?