Comment 41 for bug 1810239

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In , zhen-hual (zhen-hual-linux-kernel-bugs) wrote :

See this line in file drivers/iommu/intel-iommu.c , function" static int domain_context_mapping_one( )":
     context_set_present(context);

It is used to set the present bit of the context entry. comment this line, you will get the error.