Re: [RFC PATCH 5/6] iommu/arm-smmu-v3: fix panic when handle stall mode irq

2017-09-05 Thread Jean-Philippe Brucker
On 31/08/17 09:20, Yisheng Xie wrote: > When SMMU do not support SVM feature, however the master support SVM, > which means matser can stall and with mult-pasid number, then the user > can bind a task to device using API like iommu_bind_task(). however, > when device trigger a stall mode fault i wi

[RFC PATCH 5/6] iommu/arm-smmu-v3: fix panic when handle stall mode irq

2017-08-31 Thread Yisheng Xie
When SMMU do not support SVM feature, however the master support SVM, which means matser can stall and with mult-pasid number, then the user can bind a task to device using API like iommu_bind_task(). however, when device trigger a stall mode fault i will cause panic: [ 106.996087] Unable to hand