[Bug 1564219] Re: Ubuntu Xenial Installer hangs after a couple of minutes on Gigabyte MP30-AR0 (APM X-Gene 1)

[Ronald Maas]

I tested with latest Xenial arm64 Mini ISO from http://ports.ubuntu.com
/ubuntu-ports/dists/xenial/main/installer-
arm64/current/images/netboot/mini.iso (dated 20-Apr-2016) and the same
issue occurs again. Freeze occurs roughly 1 - 10 seconds after I started
the installer.

When I passed kernel parameter acpi=off, this seems to resolve the
freeze issue. Together with kernel parameters console=ttyS0,115200 and
clk_ignore_unused I was able to finish the complete installation
procedure.

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Title:
  Ubuntu Xenial Installer hangs after a couple of minutes on Gigabyte
  MP30-AR0 (APM X-Gene 1)

Status in debian-installer package in Ubuntu:
  New

Bug description:
  When I start the Ubuntu Xenial Installer, the system freezes after the
  following error is displayed:

  [   92.033722] NMI watchdog: BUG: soft lockup - CPU #6 stuck for 22s!
  [swapper/6:0]

  This usually happens 1 to 10 after I started the installer.

  The installer was started from UEFI Shell using the command:

  FS1:\EFI\BOOT\BOOTAA64.EFI

  Expected to happen
  -----------------
  Be able to successfully finish the installation procedure

  What actually happened
  ----------------------
  Installer freezes and does not respond to any keyboard input. I need to cold restart the computer to get it to work again.

  Hardware
  --------
  Gigabyte MP30-AR0 motherboard with APM X-Gene 1 processor flashed with TianoCore UEFI
  Kingston KVR16LE11S8/4HB 16 GB ECC DDR3 DRAM
  HGST Deskstar NAS 6 TB drive
  Logitech USB keyboard

  Software
  ----
  Ubuntu Xenial Mini ISO downloaded from http://ports.ubuntu.com/ubuntu-ports/dists/xenial/main/installer-arm64/current/images/netboot/mini.iso (dated 29-Mar-2016)
  UBoot has been replaced by TianoCore UEFI using the steps described in: https://rwmj.wordpress.com/2016/03/08/gigabyte-mp30-ar0-flashing-uefi/

  Notes
  -----
  Both Centos 7.2 and Debian Testing were successfully installed and running stable for multiple days.

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