Submission + - Errata prompts Intel to disable TSX in Haswell, early Broadwell CPUs
Unfortunately, that work may have to come to a halt, thanks to a bug—or "errata," as Intel prefers to call them—in Haswell's TSX implementation that can cause critical software failures. To work around the problem, Intel will disable TSX via microcode in its current CPUs--and in early Broadwell processors, as well.