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Groups > linux.debian.bugs.dist > #1012035

Bug#961725: libopenblas-dev: On some cpus, openmp and pthread dead-lock

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Hi Graham,

Le samedi 30 mai 2020 à 15:09 +0200, Graham Inggs a écrit :

> I was able to reproduce this in Ubuntu 20.04 on i7-2600 with the
>     Rscript -e "example(solve)"
> test case.  Rebuilding with
>     export DEB_LDFLAGS_MAINT_STRIP="-Wl,-Bsymbolic-functions"
> in debian/rules solved it for me.
> 
> On Sat, 30 May 2020 at 09:15, Sébastien Villemot <
> sebastien@debian.org
> > wrote:
> > Just one question: did you try to rebuild it from source without
> > changing anything? Maybe it’s just the rebuild that fixed it, and not
> > the flag change.
> 
> I confirm that a no-change rebuild had no effect.

Thanks to you (and to Mo) for doing those rebuilds.

> Could we get this fixed in Debian?  At worst, it should be a no-op in
> Debian, and should someone try rebuilding locally with -Bsymbolic-
> functions they won't fall into this trap.

Sure, we’ll fix it in Debian (a similar fix is present in src:lapack,
by the way).

It could however take some time, because we are currently waiting for
NEW clearance from the most recent upload of src:openblas.

Best,

-- 
⢀⣴⠾⠻⢶⣦⠀  Sébastien Villemot
⣾⠁⢠⠒⠀⣿⡁  Debian Developer
⢿⡄⠘⠷⠚⠋⠀  https://sebastien.villemot.name
⠈⠳⣄⠀⠀⠀⠀  https://www.debian.org

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Bug#961725: libopenblas-dev: On some cpus, openmp and pthread dead-lock Mo Zhou <lumin@debian.org> - 2020-05-30 03:30 +0200
  Bug#961725: libopenblas-dev: On some cpus, openmp and pthread dead-lock Dirk Eddelbuettel <edd@debian.org> - 2020-05-30 04:00 +0200
  Bug#961725: libopenblas-dev: On some cpus, openmp and pthread dead-lock Sébastien Villemot <sebastien@debian.org> - 2020-05-30 09:20 +0200
    Bug#961725: libopenblas-dev: On some cpus, openmp and pthread dead-lock Graham Inggs <ginggs@debian.org> - 2020-05-30 21:40 +0200
      Bug#961725: libopenblas-dev: On some cpus, openmp and pthread dead-lock Sébastien Villemot <sebastien@debian.org> - 2020-05-30 21:50 +0200
        Bug#961725: libopenblas-dev: On some cpus, openmp and pthread dead-lock Dirk Eddelbuettel <edd@debian.org> - 2020-05-30 22:20 +0200
          Bug#961725: libopenblas-dev: On some cpus, openmp and pthread dead-lock Dirk Eddelbuettel <edd@debian.org> - 2020-06-01 13:30 +0200
            Bug#961725: libopenblas-dev: On some cpus, openmp and pthread dead-lock Dirk Eddelbuettel <edd@debian.org> - 2020-06-03 18:40 +0200
              Bug#961725: libopenblas-dev: On some cpus, openmp and pthread dead-lock Graham Inggs <ginggs@debian.org> - 2020-06-04 10:50 +0200
                Bug#961725: libopenblas-dev: On some cpus, openmp and pthread dead-lock Dirk Eddelbuettel <edd@debian.org> - 2020-06-04 14:20 +0200
                Bug#961725: libopenblas-dev: On some cpus, openmp and pthread dead-lock Graham Inggs <ginggs@debian.org> - 2020-06-04 14:40 +0200
      Bug#961725: libopenblas-dev: On some cpus, openmp and pthread dead-lock Dirk Eddelbuettel <edd@debian.org> - 2020-05-30 22:20 +0200

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