Le dimanche 24 novembre 2024, 14:46:15 UTC Fabian Grünbichler a écrit : > On Sun, Nov 24, 2024, at 2:49 PM, Bastien Roucariès wrote: > > Le samedi 23 novembre 2024, 18:29:04 UTC Andrey Rakhmatullin a écrit : > >> On Sat, Nov 23, 2024 at 03:14:42PM +0100, Fabian Grünbichler wrote: > >> > B) bump the i386 baseline in Debian to require SSE2, and stop disabling > >> > SSE2 there in rustc > >> > >> As suggested by Chris, and a popular opinion/request in general. > > > > Hi, > > > > First if we bump ABI could we target "pABI v0" aka amd64 baseline > > instead of only SSE2 ? > > > > It is perfectly equivalent (except minor point about FXSR). > > I don't have any opinion on that :) > > > Moreover you could test cpu support using this > > https://wiki.debian.org/InstructionSelection#Isa_support_package > > that doesn't really help. existing packages are already possibly broken in > bookworm as well, and they are broken irrespective of whether the system they > are installed on supports SSE2 or not. > > > I have made qemu-good qemu-bad wrapper to test if needed > > > > In this case, for your user I will add a wrapper that at preinst time > > warn user about unsupported instrution for next debian version and > > backport to bookworm PU > > > > I suppose dpkg could be made pre depends on this wrapper and we could > > break the upgrade if instruction is not supported > > see above, this only helps for non-SSE systems to prevent them from upgrading > since they are no longer supported if we raise the baseline,
yes it is the goal do not upgrade if we raise the baseline Bastien > but it doesn't actually solve the issue at hand if we don't. unless we raise > the baseline only for Rust, but I don't really see a point in that. > >
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