I have a MacPro3,1 that I've recently upgraded to High Sierra using the patch. I also still use an older 1st gen 64GB iPod Mini (yes, upgraded) that I've always connected to the machine via the FireWire 400 cable. Up until I did the High Sierra upgrade, the Mac and iPod had no issues.

If I plug the iPod into the Mac with the FireWire cable the screen immediately dies and the Mac reboots. If I leave the iPod plugged in, the computer will go into a continuous reboot loop (several seconds in between). I did notice in one of the generated Apple problem reports that it is a FireWire related kernel panic.

Any ideas why this would be happening? Is FireWire no longer supported on High Sierra perhaps?

  • Have you tried a USB cable instead of a FireWire 400 cable for your iPod? Do you have any other FireWire 400 devices you could plug in to troubleshoot if your Mac Pro has issues with its FireWire port? – drivec May 30 '18 at 14:32
  • @drivec I am able to sync it with the USB cable, but the nice thing about the FireWire cable is that it is a bit faster at everything (charging, syncing) than USB and also doesn't use one of my USB ports in the process. – bjb May 30 '18 at 16:24
  • I'm certain that FireWire 400 is still supported in High Sierra. Do other FireWire 400 devices cause kernel panics? – drivec May 30 '18 at 16:29
  • @drivec I don't have any FireWire devices to test with it other than iPod Minis :-/ (yes, they're for parts!) – bjb May 30 '18 at 18:32

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