C MMap in FreeBSD 11

V

Vash Garr

Hi ,

I have question about mmap and /dev/mem in the FreeBSD 11. We found, that ours applications does not work correct in the 11 - there is a problem with mapping physical memory via mmap and /dev/mem device - we are receiving "Permission Denied" error. Is there any important change in the new version, that prohibits this operation, or it is just a bug in the OS or App?

Regards,
Patryk
 
Any particular reason you use FreeBSD-CURRENT? As suggested here, -CURRENT branch is not "the best" platform for a production machine. You may want to use 10.3-RELEASE instead.

If you HAVE TO use FreeBSD-CURRENT, then freebsd-current mailing list is the best place to ask this question. But it is worth noting that any feature you have in -CURRENT may not be available in the -RELEASE version.
 
Thanks all for answers. Sorry for placing it here, not in the mailing list. I will move it. We must support all versions of the FreeBSD from the 10.1. I know, that the 11 was not published yet, but some of our colleagues need it and found, that it does not work. This is very important for our product and I have to know if we will need changes in the workflow when the 11 will be released.

Regards,
Patryk
 
Vash Garr said:
We must support all versions of the FreeBSD from the 10.1. I know, that the 11 was not published yet, but some of our colleagues need it and found, that it does not work
Click to expand...
It is available for download, in fact I have a VM running FreeBSD-CURRENT, BUT, it is not officially supported. This means, say, if you develop a software that depends on any feature/library introduced with FreeBSD-CURRENT, there is no guarantee that you will have that in the RELEASE version.

Have a look at release engineering web site.

You may also want to subscribe to freebsd-current mailing list, which would allow you to be across potential issues and changes in the coming release.
 
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