Re: [intel-sgx-kernel-dev] [PATCH v5 10/11] intel_sgx: glue code for in-kernel LE

Jarkko Sakkinen
2017-11-14T20:31:28Z

On Tue, Nov 14, 2017 at 10:16:43AM -0800, Sean Christopherson wrote:
> This semaphore approach is broken due to the LE process using an anon inode for
> /dev/sgx, which results in sgx_release being called without an accompanying call
> to sgx_open.  This causes deadlocks due to a semaphore underrun.
>
> https://lists.01.org/pipermail/intel-sgx-kernel-dev/2017-November/000901.html

Thank you for catching this. I can only say that I forgot to fix it it
for v5. It will be refined for v6.

/Jarkko