On Tue, Feb 28, 2023 at 09:40:49AM +0000, Daniel P. Berrangé wrote: > On Tue, Feb 28, 2023 at 10:14:52AM +0100, Thomas Huth wrote: > > On 28/02/2023 10.03, Michael S. Tsirkin wrote: > > > On Tue, Feb 28, 2023 at 08:59:52AM +0000, Daniel P. Berrangé wrote: > > > > On Tue, Feb 28, 2023 at 03:19:20AM -0500, Michael S. Tsirkin wrote: > > > > > On Tue, Feb 28, 2023 at 08:49:09AM +0100, Thomas Huth wrote: > > > > > > On 27/02/2023 21.12, Michael S. Tsirkin wrote: > > > > > > > On Mon, Feb 27, 2023 at 11:50:07AM +0000, Daniel P. Berrangé > > > > > > > wrote: > > > > > > > > I feel like we should have separate deprecation entries for the > > > > > > > > i686 host support, and for qemu-system-i386 emulator binary, as > > > > > > > > although they're related they are independant features with > > > > > > > > differing impact. eg removing qemu-system-i386 affects all > > > > > > > > host architectures, not merely 32-bit x86 host, so I think we > > > > > > > > can explain the impact more clearly if we separate them. > > > > > > > > > > > > > > Removing qemu-system-i386 seems ok to me - I think > > > > > > > qemu-system-x86_64 is > > > > > > > a superset. > > > > > > > > > > > > > > Removing support for building on 32 bit systems seems like a pity > > > > > > > - it's > > > > > > > one of a small number of ways to run 64 bit binaries on 32 bit > > > > > > > systems, > > > > > > > and the maintainance overhead is quite small. > > > > > > > > > > > > Note: We're talking about 32-bit *x86* hosts here. Do you really > > > > > > think that > > > > > > someone is still using QEMU usermode emulation > > > > > > to run 64-bit binaries on a 32-bit x86 host?? ... If so, I'd be > > > > > > very surprised! > > > > > > > > > > I don't know - why x86 specifically? One can build a 32 bit binary on > > > > > any host. > > > > > I think 32 bit x86 environments are just more common in the cloud. > > > > > > > > Can you point to anything that backs up that assertion. Clouds I've > > > > seen always give you a 64-bit environment, and many OS no longer > > > > even ship 32-bit installable media. > > > > > > Sorry about being unclear. I meant that it seems easier to run CI in the > > > cloud in a 32 bit x64 environment than get a 32 bit ARM environment. > > > > It's still doable ... but for how much longer? We're currently depending on > > Fedora, but they also slowly drop more and more support for this > > environment, see e.g.: > > FWIW, we should cull our fedora-i386-cross.docker dockerfile and > replace it with a debian i686 dockerfile generated by lcitool. > There's no compelling reason why i686 should be different from > all our other cross builds which are based on Debian. The Debian > lcitool generated container would have access to a wider range > of deps than our hand written Fedora one. > > > https://www.theregister.com/2022/03/10/fedora_inches_closer_to_dropping/ > > With regards, > Daniel
... and is closer to where 32 bit is likely to be deployed which is systems like e.g. raspberry pi os which until recently was only 32 bit. -- MST
