Thank you for reporting this! This is indeed a bug in SharedTable. Unfortunately, the implementation of SharedTable uses a CPU instruction (popcnt) that was added in Intel’s Nehalem microarchitecture. The Core 2 Quad Q9650 is a Penryn microarchitecture chip, which is the generation before Nehalem.
This was not intended, and we are working on a fix for this.
Hi; I just wanted to close the loop on this and share that this was fixed in late November. SharedTable usage should no longer cause crashes on old but still-supported hardware. Thanks again for reporting this!