<p>Originally reported at <a href="https://bugzilla.redhat.com/show_bug.cgi?id=1729382" rel="nofollow">https://bugzilla.redhat.com/show_bug.cgi?id=1729382</a> but filing here for discussion and release tracking - this is a release blocker issue.</p>
<p>Short summary is that the new threaded build code can easily run out of memory doing file compression, causing previously working builds to semi-reproducably fail for no good reason. This can happen on any system given sufficiently large number of sub-packages and lowish memory, but on 32bit platforms the address space is the primary limiting factor.</p>

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