[Qa-jenkins-dev] Bug#902383: Bug#902383: reproducible-builds.org: test host-specific FTBFS failures on i386

[Mattia Rizzolo]

On Mon, Jun 25, 2018 at 01:54:16PM -0400, David Steele wrote:
> For some jobs, it appears that profitbricks-build2-i386.debian.net
> repeatedly returns FTBFS, while profitbricks-build6-i386.debian.net always
> succeeds. This situation has been in place for 2 months.

That's because that host (and pb12) is running on the jessie's kernel,
because later kernels are bugged for us (→ #876035).

It just so happens that Qt >= 5.10 requires linux 3.17 (→ #895718), and
for some crappy reason the linker returns ENOENT in when the abitag of a
library doesn't match.

> Note that i386 has the highest current FTBFS count across architectures.

Quite sure that's due to this issue.

To me, it's not yet quite clear how to best deal with this issue, as
updating the kernel is going to tear the performance apart once again,
splitting the builder hosts is a bunch of work and Holger was somewhat
opposed to it, patching Qt requires competences I don't have, and the
workaround suggested in #895718#104 is terrible.


Thanks for filing this bug, I believe nobody took care of filing a
tracking bug against j.d.o yet…

-- 
regards,
                        Mattia Rizzolo

GPG Key: 66AE 2B4A FCCF 3F52 DA18  4D18 4B04 3FCD B944 4540      .''`.
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