Hello Ludo, Em terça-feira, 28 de setembro de 2021, às 08:57:45 -03, Ludovic Courtès escreveu: > Hello Guix! > > Wouldn’t it be nice to get ‘core-updates-frozen’ merged? :-) > > What about merging the patches blocked by > <https://issues.guix.gnu.org/50358>? We could even have them on a > separate branch, have Cuirass build it, and merge it 24–36h later, at > which point substitute coverage should be reasonably good. > > I haven’t followed the new ports, POWER9 and RISC-V. If there’s > anything needed in this area, like localized toolchain changes, please > send a heads-up!
There are two things I’m aware of for POWER9: • diffutils test fix: https://issues.guix.gnu.org/50239 • gcc-5 build with GCC 10 fix: https://issues.guix.gnu.org/49896 In the case of diffutils, IMHO ideally we would apply the v2 patch there for the world rebuild, but as Ludo suggested it’s also possible to make the change only for powerpc64le-linux and avoid affecting other platforms. In the case of gcc-5, it’s the same situation actually. But in addition to that, `guix refresh --list-dependent` says that modifying gcc-5 would only cause 32 dependent packages to be rebuilt so it’s not necessary to address it for the world rebuild. > As I say every time someone proposes a new port, the main issue is not > the port itself but maintaining it longer-term. And here it’s not even > clear to me what the status of POWER9 is on ‘core-updates-frozen’, so > it’d be great to get feedback on this, ensure Cuirass builds it, and so > on. Yeah, the status of POWER9 on ‘core-updates-frozen’ is obfuscated by some build failures early in the dependency chain that were caused by QEMU bugs. My impression is that the same is also true for aarch64-linux. For instance, QEMU can’t run libsigsegv’s testsuite (among other things), and that blocks a ton of stuff. Ditto for util-linux’s testsuite. I was waiting for this world rebuild to happen to see the results in Cuirass now that powerpc64le-linux builds are only done on guixp9, but in hindsight it would have been better if I requested that those builds were restarted instead. Restarting this build should remove the main roadblock though: https://ci.guix.gnu.org/build/703194/details When that build is restarted and succeeds, does Cuirass also restart the builds that failed because they depended on it, or do we need to explicitly restart those as well? What I can say is that IMHO POWER9 support isn’t too bad at least for the base packages given that I can build e.g., emacs (assuming that the patch for issue 50521 fixing a problem in gtk+-2 is applied), which depends on many base packages including X11 and GTK+. -- Thanks, Thiago
