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[Bug 1558828] Re: Need enough contiguous memory to support GICv3 ITS table


This is actually the wrong bug number for this issue (my fault) - it should be LP: #1509221.
At any rate, I have verified it - still boots fine, and there is no longer a numa traceback.

** Tags removed: verification-needed-wily
** Tags added: verification-done-wily

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  Need enough contiguous memory to support GICv3 ITS table

Status in linux package in Ubuntu:
  Fix Released

Bug description:
  The GICv3 ITS table needs between 36K and 56K of contiguous memory.
  But, with 4K pages and a MAX_ZONEORDER of 11, we can only allocate
  32K. The upstream approach to resolve this will likely be to make the
  core GIC a proper device that can use the DMA API:


  However - that's a pretty big change, and will take a while to land.
  Until that time, I propose that we bump MAX_ZONEORDER up to 13 for the
  generic kernel.

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