Re: [PATCH v6 23/27] x86: Don't panic if can not alloc buffer for swiotlb

On Thu, Dec 13, 2012 at 02:02:17PM -0800, Yinghai Lu wrote: > Normal boot path on system with iommu support: > swiotlb buffer will be allocated early at first and then try to initialize > iommu, if iommu for intel or amd could setup properly, swiotlb buffer > will be freed. > > The early allocatin

[PATCH v6 23/27] x86: Don't panic if can not alloc buffer for swiotlb

Normal boot path on system with iommu support: swiotlb buffer will be allocated early at first and then try to initialize iommu, if iommu for intel or amd could setup properly, swiotlb buffer will be freed. The early allocating is with bootmem, and could panic when we try to use kdump with buffer