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Tony Breeds | 17 Apr 05:02

Ocaml and pthread_atfork()

Hi All,
	Firstly I apologize if this is noise.  I elected to not file a
bugzilla as the problem seems to be powerpc specific and with the limited
resources for Fedora developers it would seem unfair.

I was recently trying to build a "current" libguestfs from the f16
branch[1].  During the build I hit:

(extracted from rpmbuild)

[tony <at> sneetch ~]$ bash -x  tmp/ocaml-test.sh 
+ cd rpmbuild/BUILD/libguestfs-1.16.9/ocaml/
+ LD_LIBRARY_PATH=../src/.libs
+ ocamlfind ocamlc -g -warn-error CDEFLMPSUVYZX -I . -package unix,threads -thread -linkpkg
mlguestfs.cma t/guestfs_070_threads.cmo -o t/guestfs_070_threads.bc
File "_none_", line 1, characters 0-1:
Error: Error on dynamically loaded library: /usr/lib64/ocaml/stublibs/dllthreads.so:
/usr/lib64/ocaml/stublibs/dllthreads.so: undefined symbol: pthread_atfork

I did a quick bit of googling and found:
http://ryanarn.blogspot.com.au/2011/07/curious-case-of-pthreadatfork-on.html

which seems to explain what's going on to my naive eye anyway.

I've tried a few different CFLAGS/patches to
otherlibs/systhreads/Makefile to try and induce pthreads_atfork() to be
resolved and linked during the ocaml build.  Nothing I try works.

Does anyone have any ideas on how to solve this?
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bugzilla | 15 Apr 07:35
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[Bug 812582] New: ocaml-lablgtk needs to be rebuilt

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Summary: ocaml-lablgtk needs to be rebuilt

https://bugzilla.redhat.com/show_bug.cgi?id=812582

           Summary: ocaml-lablgtk needs to be rebuilt
           Product: Fedora
           Version: 16
          Platform: i686
        OS/Version: Linux
            Status: NEW
          Severity: unspecified
          Priority: unspecified
         Component: ocaml-lablgtk
        AssignedTo: rjones <at> redhat.com
        ReportedBy: emertens <at> gmail.com
         QAContact: extras-qa <at> fedoraproject.org
                CC: dwheeler <at> dwheeler.com, rjones <at> redhat.com,
                    amdunn <at> gmail.com, fedora-ocaml-list <at> redhat.com
    Classification: Fedora
      Story Points: ---
              Type: Bug
        Regression: ---
        Mount Type: ---
     Documentation: ---

Description of problem:
This library needs to be rebuilt. Without rebuilding it linking ocaml programs
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bugzilla | 3 Apr 18:47
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[Bug 787888] CVE-2012-0839 ocaml: hash table collisions CPU usage DoS (oCERT-2011-003)

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https://bugzilla.redhat.com/show_bug.cgi?id=787888

--- Comment #5 from Kurt Seifried <kseifried <at> redhat.com> 2012-04-03 12:47:04 EDT ---
According to Xavier Leroy Xavier.Leroy <at> inria.fr:

We decided to skip the 3.13 release entirely and go straight to 4.00.
The 4.00 release is scheduled for June 2012.

http://caml.inria.fr/mantis/view.php?id=5572

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bugzilla | 3 Apr 06:21
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[Bug 787888] CVE-2012-0839 ocaml: hash table collisions CPU usage DoS (oCERT-2011-003)

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https://bugzilla.redhat.com/show_bug.cgi?id=787888

--- Comment #4 from Kurt Seifried <kseifried <at> redhat.com> 2012-04-03 00:21:35 EDT ---
I misspoke, they are still discussing fixing it in this thread: 

http://www.mail-archive.com/caml-list <at> inria.fr/msg02104.html

"OCaml 3.13 will provide options for Hashtbl allowing it pass a seed, but
only in a case by case way. What will not be included in OCaml 3.13 is
access to RNGs with entropy injection (i.e. it is left to the programmer
to solve this difficulty)."

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Fedora PackageDB | 12 Mar 16:10
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[pkgdb] ocaml-camlimages ownership changed

Package ocaml-camlimages in Fedora devel is now owned by bruno

To make changes to this package see:
  https://admin.fedoraproject.org/pkgdb/acls/name/ocaml-camlimages
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bugzilla | 10 Mar 08:29
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[Bug 787888] CVE-2012-0839 ocaml: hash table collisions CPU usage DoS (oCERT-2011-003)

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comments should be made in the comments box of this bug.

https://bugzilla.redhat.com/show_bug.cgi?id=787888

--- Comment #3 from Richard W.M. Jones <rjones <at> redhat.com> 2012-03-10 02:29:04 EST ---
(In reply to comment #2)
> We ship the ocaml language so ideally we need to fix it for our customers that
> do use it. Emailed ocaml to confirm if they're done fixing it.

Where is this email?

Anyway, upstream haven't started fixing it.  There is
opposition from people who want Hashtbl to work
reproducibly (naturally without them having to make any
changes to their code nor to their workflow).

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bugzilla | 10 Mar 01:30
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[Bug 787888] CVE-2012-0839 ocaml: hash table collisions CPU usage DoS (oCERT-2011-003)

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comments should be made in the comments box of this bug.

https://bugzilla.redhat.com/show_bug.cgi?id=787888

Kurt Seifried <kseifried <at> redhat.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
               Flag|needinfo?(kseifried <at> redhat. |
                   |com)                        |

--- Comment #2 from Kurt Seifried <kseifried <at> redhat.com> 2012-03-09 19:30:32 EST ---
We ship the ocaml language so ideally we need to fix it for our customers that
do use it. Emailed ocaml to confirm if they're done fixing it.

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Bruno Wolff III | 23 Feb 18:27
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Review request for bringing back ocaml-calimages

I want to bring back ocaml-calimages since it is a build dependency
of free tennis. I used the current ocaml template mixed a bit with the
previous spec file to create the proposed new spec file.

While I'd really like an official review, even a quick looksee from someone
that works with ocaml regularly (which I don't), for obvious issues
would be appreciated.

Thanks.

The review bug is at:
https://bugzilla.redhat.com/show_bug.cgi?id=785727
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bugzilla | 13 Feb 00:28
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[Bug 789784] New: Provide native systemd service

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Summary: Provide native systemd service

https://bugzilla.redhat.com/show_bug.cgi?id=789784

           Summary: Provide native systemd service
           Product: Fedora
           Version: rawhide
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: unspecified
          Priority: unspecified
         Component: mldonkey
        AssignedTo: lemenkov <at> gmail.com
        ReportedBy: johannbg <at> gmail.com
         QAContact: extras-qa <at> fedoraproject.org
                CC: rjones <at> redhat.com, lemenkov <at> gmail.com,
                    fedora-ocaml-list <at> redhat.com
    Classification: Fedora
      Story Points: ---
              Type: ---
        Regression: ---
        Mount Type: ---
     Documentation: ---

Description of problem:
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bugzilla | 7 Feb 09:18
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[Bug 787888] CVE-2012-0839 ocaml: hash table collisions CPU usage DoS (oCERT-2011-003)

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comments should be made in the comments box of this bug.

https://bugzilla.redhat.com/show_bug.cgi?id=787888

Richard W.M. Jones <rjones <at> redhat.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
               Flag|                            |needinfo?(kseifried <at> redhat.
                   |                            |com)

--- Comment #1 from Richard W.M. Jones <rjones <at> redhat.com> 2012-02-07 03:18:29 EST ---
Are we proposing to fix this for RHEL too?  There are
no OCaml applications in RHEL which are vulnerable to this.

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bugzilla | 7 Feb 02:23
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[Bug 787888] CVE-2012-0839 ocaml: hash table collisions CPU usage DoS (oCERT-2011-003)

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comments should be made in the comments box of this bug.

https://bugzilla.redhat.com/show_bug.cgi?id=787888

Kurt Seifried <kseifried <at> redhat.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|                            |787889

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Gmane