Hello, first of all, thanks for the valuable inputs. > > diffoscope timeout is 120m ... so that would more-or-less explain it why > > the "build" takes 2+ hours... > > indeed, the "builds" by themselves are usually taking ~10 minutes each > (except on armhf), plus 2 hours of diffoscope which is the one step that > timeouts.
Ok, so apparently the build is going fine, what's timing out is diffoscope. > > Though I built polybar using reprotest, and it completed in ~22minutes, > > including two builds and running diffoscope. > > The diffoscope output from my test with reprotest: > > https://people.debian.org/~vagrant/reproducible/polybar.diffoscope.out.gz What's interesting is that on your run I can see the following: "[ Too much input for diff (SHA256: 36e5c892c333470e2dc1f6464264e99db67d95a2653e8c82a3936e1d387f1b96) ]" While none of the diffs from the salsa job has this, and the diffoscope result of debian/master is bigger than this one from your run. Do you know why this is happening? It looks like it's related to the reason we are having timeouts. > One thing you should consider: the build path length is varied nowadays. > This means it can very easily cause shifts in the compiled binaries even > after stripping (see the very recent bug open against debhelper to avoid > saving RPATH when using cmake). > Such thing won't happen during regular rebuilds, as the build path > lenght is usually the same even when slighly different, and as such it's > quite easier to diffoscope to build up the diff. I've tried the suggestion from #962474 (the bug you mentioned), but the diff is still the same, I've tried both with "CMAKE_SKIP_RPATH=ON"[1] and "CMAKE_BUILD_RPATH_USE_ORIGIN=ON"[2]. The diff seems to be mostly made of entries like this (diff from a build with DEB_BUILD_MAINT_OPTIONS = reproducible=+fixfilepath [branch debian/samueloph/reproducible2]): │ │ │ │ - 250e36: 48 8d 3d e0 b5 00 00 lea 0xb5e0(%rip),%rdi │ │ │ │ + 250e36: 48 8d 3d e8 b5 00 00 lea 0xb5e8(%rip),%rdi │ │ │ │ 250e3d: e8 4e a3 e6 ff callq bb190 <std::__throw_length_error(char const*)@plt> │ │ │ │ - 250e42: 48 8d 3d d4 b5 00 00 lea 0xb5d4(%rip),%rdi │ │ │ │ + 250e42: 48 8d 3d dc b5 00 00 lea 0xb5dc(%rip),%rdi Do you recognize this as some pattern of a known reproducibility issue? I'm not experienced enough to get it. [0] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=962474 [1] https://salsa.debian.org/debian/polybar/-/jobs/795453 [2] https://salsa.debian.org/debian/polybar/-/jobs/795526 Regards, -- Samuel Henrique <samueloph> _______________________________________________ Reproducible-builds mailing list [email protected] https://alioth-lists.debian.net/cgi-bin/mailman/listinfo/reproducible-builds
