On Thu, 26 Oct 2023 11:01:57 -0500, Reinette Chatre reinette.chatre@intel.com wrote:
On 10/25/2023 4:58 PM, Huang, Kai wrote:
On Wed, 2023-10-25 at 07:31 -0700, Hansen, Dave wrote:
On 10/19/23 19:53, Haitao Huang wrote:
In the EAUG on page fault path, VM_FAULT_OOM is returned when the Enclave Page Cache (EPC) runs out. This may trigger unneeded OOM kill that will not free any EPCs. Return VM_FAULT_SIGBUS instead.
This commit message does not seem accurate to me. From what I can tell VM_FAULT_SIGBUS is indeed returned when EPC runs out. What is addressed with this patch is the error returned when kernel (not EPC) memory runs out.
Sorry I got it mixed up between sgx_alloc_epc_page and sgx_encl_page_alloc returns. You are right. Please drop this patch.
Thanks Haitao