Linux /dev/shm

[Chagin Dmitry]

On Wed, Dec 31, 2014 at 04:33:08PM -0600, Jason Bacon wrote:
> On 12/30/14 12:54, Miguel Clara wrote:
> >
> > On 30 December 2014 06:46:40 WET, Chagin Dmitry <dchagin at freebsd.org> wrote:
> >> On Mon, Dec 29, 2014 at 08:49:08PM -0600, Jason Bacon wrote:
> >>> Not sure where else to ask this:
> >>>
> >>> I'm trying to run Atomistix (http://www.quantumwise.com/) on FreeBSD
> >> 10.1.
> >>> The installer runs without a hitch, but I've run into issues with one
> >> of
> >>> the main binaries, vnl_exec.
> >>>
> >>> First problem was a missing libgomp.  linux-c6-devtools installs a
> >>> dangling link in:
> >>>
> >>> /compat/linux/usr/lib/gcc/i686-redhat-linux/4.4.4/libgomp.so
> >>>
> >>> I fixed this by patching the port to include
> >> libgomp-4.4.7-11.el6.i686.rpm.
> >>> That got vnl_exec past all the link errors, but now I'm running into
> >> this:
> >>> Traceback (most recent call last):
> >>>     File "<string>", line 1, in <module>
> >>>     File "./zipdir/NL/__init__.py", line 17, in <module>
> >>>     File "./zipdir/NL/ComputerScienceUtilities/Singleton.py", line
> >> 120,
> >>> in <module>
> >>>     File "./build/lib/python2.7/multiprocessing/__init__.py", line
> >> 183,
> >>> in RLock
> >>>     File "./build/lib/python2.7/multiprocessing/synchronize.py", line
> >>> 172, in __init__
> >>>     File "./build/lib/python2.7/multiprocessing/synchronize.py", line
> >> 75,
> >>> in __init__
> >>> OSError: [Errno 38] Function not implemented
> >>>
> >>>   From what I've found on the Linux forums, this is indicating that
> >> the
> >>> app requires a tmpfs mounted on /dev/shm as an IPC interface. Is
> >> there
> >>> any way to emulate this on FreeBSD?
> >>>
> >> yes, see r218497 commit description. it seems to me that you should
> >> mount tmpfs somewhere
> >
> > You can use devfs.conf for this, add:
> > link /tmp shm
> >
> > Hope that helps,
> > Miguel
> >
> >
> Got it working.  There was a minor configuration issue preventing shm 
> from working.  I also had to create a linux-c6-libudev port, which I'll 
> submit along with an atomistix-installer port (like 
> math/matlab-installer) once I've done more thorough testing.
> 
nice, however, can u try without defvs magic? glibc look through /proc/mounts
to find tmpfs mount point if cant find /dev/shm.
-- 
Have fun!
chd