[Pkg-utopia-maintainers] Bug#827473: ostree: FTBFS on mipsel: "ostree pull" sometimes gets SIGBUS, SIGSEGV

Simon McVittie smcv at debian.org
Tue Jun 28 13:44:13 UTC 2016


Control: reopen 827473
Control: found 827473 2016.6-2

On Sun, 26 Jun 2016 at 19:54:11 +0000, Debian Bug Tracking System wrote:
>    * New upstream release
...
>      - this version is more careful about thread-safety, which appears
>        to fix the test failures that caused FTBFS on mipsel
>        (Closes: #827473)

I thought this was true, and it seems to have worked on eberlin and etler
with 2016.6-1; but with 2016.6-2 (which makes no source changes, just
switches one test to LC_ALL=C) it's back to failing with sporadic
bus errors in "ostree pull" on eberlin. 5 out of 5 test runs failed,
but the test that fails in each run is different.

On Tue, 21 Jun 2016 at 11:55:29 +0100, Simon McVittie wrote:
> I'm going to try with valgrind, and if I can't get anything useful out of
> that, either ignore the test failure on mipsel, or ask for the 2016.5-3
> binaries to be removed so they don't block ostree migrating to testing
> on other architectures.

I was unable to get any useful information from valgrind either.

mips porters, is there something special that maintainers are expected
to do to be able to debug or diagnose mips-specific issues? As noted in
an earlier mail to this bug, inspecting the core dump was not helpful.
It's entirely possible that this is an ostree bug, but I'm unlikely to
be able to do anything about it without some indication of where it is.

How confident are we that these machines have reliable hardware,
and that the mipsel toolchain is reliable?

I would really like to resolve this somehow so that ostree and flatpak
can migrate to testing, either by getting enough information to be able
to diagnose and fix what is wrong, by having the mipsel binaries removed,
or by ignoring test failures on mipsel and assuming that if anyone
actually *uses* ostree there, they will also step forward to diagnose and
fix it.

    S



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