Author Topic: Could avast! free for Mac be introducing errors in the OS X file system?  (Read 2986 times)

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sboydman

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In using Drive Genius 3 to rebuild my volume (an enhanced version of Disk Utility repair function), I obtain the following log:

   Repairing volume...
   Checking Journaled HFS Plus volume.
   The volume name is Macintosh HD
   Checking extents overflow file.
   Checking catalog file.
   Checking multi-linked files.
   Checking catalog hierarchy.
   Checking extended attributes file.
   Checking volume bitmap.
   Checking volume information.
   The volume Macintosh HD appears to be OK.
   Rebuilding volume...
   Checking Journaled HFS Plus volume.
   The volume name is Macintosh HD
   Checking extents overflow file.
   Checking catalog file.
   Rebuilding catalog B-tree.
   Rechecking volume.
   Checking Journaled HFS Plus volume.
   The volume name is Macintosh HD
   Checking extents overflow file.
   Checking catalog file.
   Checking multi-linked files.
   Checking catalog hierarchy.
   Checking extended attributes file.
   Checking volume bitmap.
   Checking volume information.
   Invalid volume file count
   (It should be 511356 instead of 511691)
   Invalid volume directory count
   (It should be 126868 instead of 127063)
   Invalid volume free block count
   (It should be 34799119 instead of 33453781)
   Volume header needs minor repair
   Repairing volume.
   Rechecking volume.
   Checking Journaled HFS Plus volume.
   The volume name is Macintosh HD
   Checking extents overflow file.
   Checking catalog file.
   Checking multi-linked files.
   Checking catalog hierarchy.
   Checking extended attributes file.
   Checking volume bitmap.
   Checking volume information.
   The volume Macintosh HD was repaired successfully.
   Verifying volume...
   Checking Journaled HFS Plus volume.
   The volume name is Macintosh HD
   Checking extents overflow file.
   Checking catalog file.
   Checking multi-linked files.
   Checking catalog hierarchy.
   Checking extended attributes file.
   Checking volume bitmap.
   Checking volume information.
   The volume Macintosh HD appears to be OK.

The Drive Genius tech support responded with the following: "Drive Genius watches the system log file for these OS errors and reports them. The errors that you listed are minor, but if they are recurring then I would say that some 3rd party software may be at fault (something like an Anti Virus product that hooks deep into the system may be involved)."

These errors were present on 3 different Mac computers, all running Lion 10.7.4, and all running avast! free for Mac at the latest program revision and virus database. Is it possible that avast! could be involved in this situation? I'm just bring it to your attention, and not implying or accusing in any way. As I've stated in other posts, I love your program. I have not as yet tried to remove avast! to see if the behavior persists without avast! on the systems, but this would probably be one of my first troubleshooting steps. One that I rather would not take, as I feel much more comfortable with your antivirus program protecting my systems.

I am very interested if you can add any information to the Drive Genius tech's comments. Thanks for any response regarding the above.

Offline .: Mac :.

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It looks like these are extremely minor variations, perhaps ones the Apple Disk Utility would not find? We will need the Avast team to comment to get a definite answer.
"People who are really serious about software should make their own hardware." - Alan Kay