Groups > linux.debian.bugs.dist > #1012040

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

From	Dirk Eddelbuettel <edd@debian.org>
Newsgroups	linux.debian.bugs.dist
Subject	Bug#961725: libopenblas-dev: On some cpus, openmp and pthread dead-lock
Date	2020-05-30 22:20 +0200
Message-ID	<Acg7v-1Js-11@gated-at.bofh.it> (permalink)
References	(1 earlier) <AbYtX-7QN-1@gated-at.bofh.it> <Ac3WF-2Oj-3@gated-at.bofh.it> <AcfuN-1gk-9@gated-at.bofh.it> <Abpwd-3MO-5@gated-at.bofh.it> <AcfuN-1gk-9@gated-at.bofh.it>
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On 30 May 2020 at 15:09, Graham Inggs wrote:
| Hi
| 
| 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.
| 
| I suspect this is the same problem that was discovered in LP: #1860601
| [1], but I was unable to reproduce it locally.
| I'll take care of fixing this in Ubuntu Groovy and SRU for Ubuntu Focal.

Lovely!  I was wondering how we could possibly reach out and get to someone!

Dirk

| 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.
| 
| Regards
| Graham
| 
| 
| [1] https://pad.lv/1860601

-- 
http://dirk.eddelbuettel.com | @eddelbuettel | edd@debian.org

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Thread

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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