Linux /dev/shm

[Jason Bacon]

On 12/30/14 12:54 PM, 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
>
>
Thanks, this did create a /dev/shm dir linked to /tmp, but I'm still 
getting the same error.

FreeBSD manatee.acadix bacon ~ 414: df
Filesystem     Size    Used   Avail Capacity  Mounted on
/dev/ada0p3    447G     17G    394G     4%    /
devfs          1.0K    1.0K      0B   100%    /dev
procfs         4.0K    4.0K      0B   100%    /proc
linprocfs      4.0K    4.0K      0B   100% /compat/linux/proc
tmpfs          5.6G    8.0K    5.6G     0%    /tmp
FreeBSD manatee.acadix bacon ~ 415: fgrep tmp /etc/fstab /etc/devfs.conf
/etc/fstab:tmpfs        /tmp            tmpfs        rw 0
/etc/devfs.conf:link    /tmp    shm
FreeBSD manatee.acadix bacon ~ 416: ls -al /dev/shm/
total 16
drwxrwxrwt   6 root  wheel   320 Dec 30 19:05 ./
drwxr-xr-x  24 root  wheel  1024 Dec 30 18:58 ../
drwxrwxrwt   2 root  wheel     0 Dec 30 18:58 .ICE-unix/
-r--r--r--   1 root  wheel    11 Dec 30 18:58 .X0-lock
drwxrwxrwt   2 root  wheel    64 Dec 30 19:05 .X11-unix/
drwxrwxrwt   2 root  wheel     0 Dec 30 18:58 .XIM-unix/
drwxrwxrwt   2 root  wheel     0 Dec 30 18:58 .font-unix/
FreeBSD manatee.acadix bacon ~ 417: QuantumWise/VNL-ATK-2014.1/bin/vnl
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

I'll keep tinkering...

-- 

-------------------------------------
   Jason W. Bacon
   Systems Programmer
   Research Computing Support
   University of Wisconsin Milwaukee
   bacon at uwm.edu
-------------------------------------