amd64/88249: getdents syscall fails for devfs on amd64
jhb at freebsd.org
Mon Nov 7 13:36:28 PST 2005
On Monday 07 November 2005 03:00 pm, Devon O'Dell wrote:
> The long discussion ended up implying several things:
> d) The issue probably isn't limited to linuxulator, but to any
> hangs) will probably occur for devfs being exported over AFS or NFS.
Well, it shouldn't panic, that's for sure.
> The attached patch does two things:
> a) If we are provided with cookie information in devfs, we currently
> do not support this. This means we cannot export devfs over network
> mounts, which I don't view as a problem (but would be a cool
Actually, it would be a worse than useless feature when you consider dynamic
major number allocation (so that /dev/cuad0 on one machine might map
to /dev/acd0 on another machine) not to mention the fact that on FreeBSD, at
least, we don't have specfs anymore, so you can't look devices up by just
major/minor, but it has to be by their name through an instance of devfs.
So, only non-FreeBSD clients could even use the exported char devs, and
FreeBSD char devs are less than useless on non-FreeBSD operating systems.
John Baldwin <jhb at FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve" = http://www.FreeBSD.org
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