sync with freebsd
remove cvs2svn prop
reset props for svn keywords
Fix IPv6 problems. Make some things in ATA & cam constant. Fix some bugs in geom Remove unused files. Tag.
sync with freebsd 9 stable.
$MidnightBSD$
sync with FreeBSD
Prevent a panic by checking for NULL and print a message to that effect.
Remove bandaid. Giant was locked on calls to sorecieve() and sosend() to fix a race condition which shouldn't be a problem anymore.
If fifo_open() is called with a negative file descriptor, return EINVAL.
This commit was generated by cvs2svn to compensate for changes in r2, which included commits to RCS files with non-trunk default branches.
Imported from FreeBSD 6.0 sources
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