Comment 7 for bug 1685984

FYI, someone in a Sohos forum posted a workaround that can help relieve some of the pain with the issues caused by the product until it's more thoroughly diagnosed and addressed: adding pre & post rules to temporarily deactivate the AV on-access scanner while updates take place. Quoting from the forum post:

> I did this by creating the file /etc/apt/apt.conf.d/00sav-protect with the contents:

DPkg::Pre-Invoke {
  "echo Stopping sav-protect...";
  "systemctl stop sav-protect.service";
  "echo Done";
};
DPkg::Post-Invoke {
  "echo Starting sav-protect...";
  "systemctl start sav-protect.service";
  "echo Done";
};

See https://community.sophos.com/products/server-protection-integration/f/sophos-anti-virus-for-linux-basic/117256/sav-protect-service-breaks-system-updates-on-ubuntu/425935#425935