On an Acer Aspire E5-523, if I don't add iommu=off to the kernel command line, the file systems rapidly (within minutes) get corrupted and usually the system locks up after a short time.  After adding iommu=off, the wifi doesn't work, but otherwise the system seems to be stable and I haven't found any filesystem corruption.

The initial install is done with kernel 4.5.5 and over several tries, I thought there was no problem, but this last time, the EFI fat partition was damaged.  However, the entire Fedora 24 desktop with lots of applications is installed successfully.  The install process installs the latest kernel available which at this point is 4.9.13 and booting with that one causes the immediate corruption by the time the user is logged in.  I will attach logs from both cases.