Re: [PATCH] iommu/vt-d: Assign old irt entries a common valid vector in kdump kernel

2016-03-02 Thread Xunlei Pang
On 03/02/2016 at 10:58 PM, Joerg Roedel wrote: > On Wed, Mar 02, 2016 at 06:02:28PM +0800, Xunlei Pang wrote: >> Currently, the kernel copies the old irt entries during iommu >> initialization for kdump, so old vectors in the first kernel are >> used but having no related kernel irq handlers set ex

Re: [PATCH] iommu/vt-d: Assign old irt entries a common valid vector in kdump kernel

2016-03-02 Thread Joerg Roedel
On Wed, Mar 02, 2016 at 06:02:28PM +0800, Xunlei Pang wrote: > Currently, the kernel copies the old irt entries during iommu > initialization for kdump, so old vectors in the first kernel are > used but having no related kernel irq handlers set explicitly, > this can lead to some problems after lap

[PATCH] iommu/vt-d: Assign old irt entries a common valid vector in kdump kernel

2016-03-02 Thread Xunlei Pang
Currently, the kernel copies the old irt entries during iommu initialization for kdump, so old vectors in the first kernel are used but having no related kernel irq handlers set explicitly, this can lead to some problems after lapics are enabled: - When some in-flight dma finished and triggered an