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From: Uwe Hermann (uwe_at_[hidden])
Date: 2007-08-16 20:11:02


On Mon, Aug 13, 2007 at 08:04:39PM -0500, Dirk Eddelbuettel wrote:
> On 14 August 2007 at 00:08, Adrian Knoth wrote:
> | On Mon, Aug 13, 2007 at 04:26:31PM -0500, Dirk Eddelbuettel wrote:
> |
> | > > I'll now compile the 1.2.3 release tarball and see if I can reproduce
> |
> | The 1.2.3 release also works fine:
> |
> | adi_at_debian:~$ ./ompi123/bin/mpirun -np 2 ring
> | 0: sending message (0) to 1
> | 0: sent message
> | 1: waiting for message
> | 1: got message (1) from 0, sending to 0
> | 0: got message (1) from 1
>
> Now I'm even more confused. I though the bug was that it segfaulted when used
> on a Debian-on-freebsd-kernel system ?

I think Adrian used a tarball, not the Debian package?
I'll try a local, manual install too, maybe the bug is Debian-related only?

> | adi_at_debian:~$ ./ompi123/bin/ompi_info
> | Open MPI: 1.2.3
> | Open MPI SVN revision: r15136
> | Open RTE: 1.2.3
> | Open RTE SVN revision: r15136
> | OPAL: 1.2.3
> | OPAL SVN revision: r15136
> | Prefix: /home/adi/ompi123
> | Configured architecture: x86_64-unknown-kfreebsd6.2-gnu

Same here.

> | > | JFTR: It's currently not possible to compile OMPI on amd64 (out of the
> | > | box). Though it compiles on i386
> | > |
> | > | http://experimental.debian.net/fetch.php?&pkg=openmpi&ver=1.2.3-3&arch=kfreebsd-i386&stamp=1187000200&file=log&as=raw
> | > |
> | > | it fails on amd64:
> | > |
> | > | http://experimental.debian.net/fetch.php?&pkg=openmpi&ver=1.2.3-3&arch=kfreebsd-amd64&stamp=1186969782&file=log&as=raw
> | > |
> | > | stacktrace.c: In function 'opal_show_stackframe':
> | > | stacktrace.c:145: error: 'FPE_FLTDIV' undeclared (first use in this
> | > | function)
> | > | stacktrace.c:145: error: (Each undeclared identifier is reported only
> | > | once
> | > | stacktrace.c:145: error: for each function it appears in.)
> | > | stacktrace.c:146: error: 'FPE_FLTOVF' undeclared (first use in this
> | > | function)
> | > | stacktrace.c:147: error: 'FPE_FLTUND' undeclared (first use in this
> | > | function)
> | > | make[4]: *** [stacktrace.lo] Error 1
> | > | make[4]: Leaving directory `/build/buildd/openmpi-1.2.3/opal/util'
> | > |
> | > |
> | > | This is caused by libc0.1-dev in /usr/include/bits/sigcontext.h, the
> | > | relevant #define's are placed in an #ifdef __i386__ condition. After
> | > | extending this for __x86_64__, everything works fine.
> | > |
> | > | Should I file a bugreport against libc0.1-dev or will you take care?
> | > I'm confused. What is libc0.1-dev?
> |
> |
> | http://packages.debian.org/unstable/libdevel/libc0.1-dev
> |
> | It's the "libc6-dev" for GNU/kFreeBSD, at least that's how I understand
> | it.
>
> I see, thanks. Well if the bug is in the header files supplied by that
> package, please go ahead and file a bug report.

I talked to Aurelien Jarno on IRC and he fixed this issue in svn (an
updated libc0.1 package will soon be uploaded).

I guess the openmpi Debian packages should then depend on the new, fixed
version. I verified that with the fixed version openmpi compiles on
kfreebsd-i386 and kfreebsd-amd64.

> | If you follow my two links and read their headlines, you can see that
> | these are the buildlogs of 1.2.3-3 on kfreebsd, working for i386, but
> | failing for amd64.
> |
> | This is caused by "wrong" libc headers on kfreebsd, that's why I thought
> | Uwe might want to have a look at it.
>
> Ok. Back to the initial bug of Open MPI on Debian/kFreeBSD. What exactly is
> the status now?

With the libc0.1 fix (and another small patch for Debian which I'll send soon)
both the kfreebsd-i386 and kfreebsd-amd64 packages build fine.

However, on my systems, both i386 and amd64 still segfault. I'm using
the openmpi Debian packages, version 1.2.3-3.

I'll try the stock tarballs soon, and/or wait for 1.2.4 to see if the
bug is already fixed there...

HTH, Uwe.

-- 
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