On Sun, 26 Feb 2017 18:56:00 +0000 Ximin Luo <[email protected]> wrote: > Ximin Luo: > > Ximin Luo: > >>> [..] > >> > >> 1.15.1 succeeded for me just now on zelenka.debian.org the s390x > >> porterbox, however there was a test failure. > >> > >> I'll retry 1.14.0 on zelenka again and see if it fails. If it does, then > >> I'll assume the issue was fixed in 1.15.1 and try uploading that to the > >> buildds (after fixing the test failure). If it doesn't fail, then it could > >> be due to a CPU difference between zelenka and zemlinsky. > >> > > > > Looks like the test failure was #842634; the zelenka schroot has two > > entries for "127.0.0.1 localhost". Unfortunately I can't write to that file > > so I'll just assume the build "would have worked". > > > > OTOH the 1.14 build I started has also got past stage0 libcore - where > > zemlinsky failed in my OP. So probably the failure is due to a CPU > > difference between zemlinsky (z10) and zelenka (z13). > > > > https://db.debian.org/machines.cgi?host=zemlinsky > > https://db.debian.org/machines.cgi?host=zelenka > > > > Actually this is not a surprise given that it also succeded on z13 Ubuntu; > > I should probably have looked at these pages before doing these >.< > > > > Hi Debian s390 list, could someone please take a look at this? Details of the > OP are here: > > https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=851150 > > The TL;DR is that rust 1.14 and 1.15 both compile fine on a z13 but fail on > z10. I don't have any access to any other z-machines apart from zelenka (z13). > > What is slightly weird, is that rust claims that LLVM supports z10: > > https://github.com/rust-lang/rust/blame/master/src/librustc_back/target/s390x_unknown_linux_gnu.rs > > But I don't have access to an actual z10 to be able to use gdb to figure out > what the actual Illegal instruction is. > > There is a wider issue here however. I see that #844258 for golang resulted > it in being removed for s390x. The reason was that Go no longer supports z10, > but only z196 and onwards. > > However, perhaps it's time for the Debian s390 team to consider bumping the > requirements for s390x in Debian? Now we have (potentially) two programming > languages who don't support z10, and whilst support might be in theory be > addable/maintainable, it appears nobody is stepping up to do this work. Also > Ubuntu's baseline is already z13.
The s390x baseline has been raised: https://lists.debian.org/debian-s390/2018/02/msg00008.html So I guess it's time to try to bootstrap rust on s390x once again. Cheers, Emilio
