On Wednesday, 19 February 2020 08:26:56 PST Konstantin Ritt wrote: > Should we ever try to work around issues caused by broken CPUs? Maybe we > should warn the user instead (with big red banner) and decline to install > anything at all?
That was the thinking on the first task. We thought it was a small corner case and that it would be simply fixed by the few people with a BIOS upgrade. When it turned out to be much more widespread and systemd also worked around it, we did too. > > <snip /> (or buy Intel) > > Or let's maybe also try to work around Meltdown and Spectre on i, just for > symmetry? ;) a) we don't have to for most of Qt, since the mitigations for them are done in the kernel and microcode updates already. The only exception is anything that JITs untrusted sources. Namely, qtwebengine. But I believe the mitigations are already present in the Chromium sources we use. b) Spectre (one of the two or both) also affects AMD and ARM and every single out-of-order processor system out there. Please see the technical docs for more information. -- Thiago Macieira - thiago.macieira (AT) intel.com Software Architect - Intel System Software Products _______________________________________________ Development mailing list Development@qt-project.org https://lists.qt-project.org/listinfo/development
