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My Mac keeps crashing with the same error:

a freed zone element has been modified in zone kalloc.64

Here are four crash reports I collected over a period of time.

It happens no matter what I'm doing, using the terminal, the browser, even when the screensaver is on.

I did try disabling avira real time scan (didn't exit) but that didn't stop the crashing.

This is driving me nuts, any ideas?

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It's hard to say from the crash reports, the good news is that the issue may be related to software - a misbehaving third party kernel module may cause a kernel panic.

From you crash reports I see the following 3rd party module:

com.avira.kext.FileAccessControl

Try updating or removing avira, and see if that helps.

  • From what I'd read online i came to a similar conclusion (About it being 3rd party), hence disabling avira's active scan, I'll try an update and see if that works. – Thermatix Jan 11 '17 at 10:40
  • Ok, so, my mac hasn't crashed once since I uninstalled avira, I just wish that it didn't as I kind of don't like leaving my mac unprotected. – Thermatix Jan 13 '17 at 0:13

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