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Macbook Air with Lion freezes during Time Machine backup...

floridabrits

I see a number of threads here with folks having stalling systems, but I have a situation where my Macbook Air completely freezes up (usually when Time Machine backup starts, or that's what I have observed when I wake the system up... the system wakes up, then freezes as Time Machine backup starts).

I logged a case with Apple and since they told me to remove Sophos Antivirus and since then my system has completely stabilized and I've not had a freeze in over a week (prior to uninstallation of Sophos my system was freezing up between 1 and 5 times a day).

Any ideas 'why' this is happening and if Sophos are aware of this and looking to patch/fix it?  Has anyone else experienced this issue and is it possible to run Sophos on Macbook Air/Lion or is there a compatibility issue?

Many thanks for any help/pointers!

:1004401


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    If you haven't intentionally disabled Virtual Memory, then this isn't an issue.

    Excluding the two paths would be great for narrowing down where the actual issue is/isn't -- if you still get lockups, you'll know that the issue isn't with virtual memory management or actual backups.  However, there are really only three major things that happen when a TM backup kciks off:

    1) rsync starts checking all the files on your drive to see if they've changed

    2) TM reserves a bunch of memory

    3) TM sometimes mounts a disk image to write the backup to (this almost always happens if you're doing a networked backup)

    Since the On Access scanner, when enabled, scans files when they are accessed by the OS, all these files have the potential to be scanned.  Do you have any difference in setup between your Air and your Mini, other than that your Air is using an SSD drive internally?  For instance, is the Mini connected to your backup drive physically (either via USB or Ethernet) and the Air connects via Wifi?

    :1004433
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  • 0

    If you haven't intentionally disabled Virtual Memory, then this isn't an issue.

    Excluding the two paths would be great for narrowing down where the actual issue is/isn't -- if you still get lockups, you'll know that the issue isn't with virtual memory management or actual backups.  However, there are really only three major things that happen when a TM backup kciks off:

    1) rsync starts checking all the files on your drive to see if they've changed

    2) TM reserves a bunch of memory

    3) TM sometimes mounts a disk image to write the backup to (this almost always happens if you're doing a networked backup)

    Since the On Access scanner, when enabled, scans files when they are accessed by the OS, all these files have the potential to be scanned.  Do you have any difference in setup between your Air and your Mini, other than that your Air is using an SSD drive internally?  For instance, is the Mini connected to your backup drive physically (either via USB or Ethernet) and the Air connects via Wifi?

    :1004433
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