A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit <a rel="external noopener" href="https://arxiv.org/pdf/2010.13593v2.pdf">the original URL</a>. The file type is <code>application/pdf</code>.
<span class="release-stage" >pre-print</span>
We study the formal semantics of non-volatile memory in the x86-TSO architecture. We show that while the explicit persist operations in the recent model of Raad et al. from POPL'20 only enforce order between writes to the non-volatile memory, it is equivalent, in terms of reachable states, to a model whose explicit persist operations mandate that prior writes are actually written to the non-volatile memory. The latter provides a novel model that is much closer to common developers'<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/2010.13593v2">arXiv:2010.13593v2</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/swpqdfnd7jghxh3xhtyssmazbu">fatcat:swpqdfnd7jghxh3xhtyssmazbu</a> </span>
more »... of persistency semantics. We further introduce a simpler and stronger sequentially consistent persistency model, develop a sound mapping from this model to x86, and establish a data-race-freedom guarantee providing programmers with a safe programming discipline. Our operational models are accompanied with equivalent declarative formulations, which facilitate our formal arguments, and may prove useful for program verification under x86 persistency.
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20201031040321/https://arxiv.org/pdf/2010.13593v2.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/ae/04/ae048a46b4f4ea2bc2d1dd77d8456386c98c85fb.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/2010.13593v2" title="arxiv.org access"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> arxiv.org </button> </a>