During July 2025, this developer contributed to the geerlingguy/linux repository by enhancing CXL event recording in the Linux kernel. Their work focused on aligning the event subsystem with CXL Specification Revision 3.2, introducing Logical Device ID and Head ID fields with validity flags to improve event origin tracing. They implemented stricter validity checks for corrected memory error counts, ensuring accurate user-space reporting of DRAM and media events. Additionally, they extended tracing for CXL Memory Sparing events, improving observability and logging. The work was carried out in C, leveraging expertise in device drivers, event tracing, kernel development, and memory management.