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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1502946

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1502946

Title:
  kernel crash on m400 arm64 server cartridge

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  We've made some progress on bug 1499869 , such that on Friday I actually had successful installs.
  An attempt at an install today shows a kernel stack trace early in the boot, then the initramfs not finding any network devices and thus failing to mount the iscsi root.

  The trace looks like this:
  [    0.000000] ------------[ cut here ]------------
  [    0.000000] WARNING: CPU: 0 PID: 0 at /build/linux-Nwr5zx/linux-4.2.0/arch/arm64/mm/numa.c:449 numa_init+0x90/0x398()
  [    0.000000] Modules linked in:
  [    0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.2.0-14-generic #16-Ubuntu
  [    0.000000] Hardware name: HP ProLiant m400 Server Cartridge (DT)
  [    0.000000] Call trace:
  [    0.000000] [<ffffffc00008a6e8>] dump_backtrace+0x0/0x150
  [    0.000000] [<ffffffc00008a858>] show_stack+0x20/0x30
  [    0.000000] [<ffffffc00086cc7c>] dump_stack+0x7c/0x98
  [    0.000000] [<ffffffc0000bd900>] warn_slowpath_common+0xa0/0xe0
  [    0.000000] [<ffffffc0000bda70>] warn_slowpath_null+0x38/0x50
  [    0.000000] [<ffffffc000c05b40>] numa_init+0x8c/0x398
  [    0.000000] [<ffffffc000c05e7c>] arm64_numa_init+0x30/0x40
  [    0.000000] [<ffffffc000c04b24>] bootmem_init+0x60/0x104
  [    0.000000] [<ffffffc000c052a0>] paging_init+0x198/0x224
  [    0.000000] [<ffffffc000c01e98>] setup_arch+0x274/0x5f8
  [    0.000000] [<ffffffc000bfe6d0>] start_kernel+0xdc/0x3f4
  [    0.000000] ---[ end trace f24b6c88ae00fa9a ]---

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