README.md: add GCC 16 PF/VF communication open issue#154
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Add the open issue describing GCC 16 optimizing 32-bit MMIO CSR reads in a way that breaks PF/VF mailbox communication and hides compression instances. Document the current workaround: build with GCC 15 or earlier. Signed-off-by: Ahsan Atta <ahsan.atta@intel.com>
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Add the open issue describing GCC 16 optimizing 32-bit MMIO CSR reads in a way that breaks PF/VF mailbox communication and hides compression instances.
Document the current workaround: build with GCC 15 or earlier.