when handling full batch of requests.
Linux expects to have 16 btyes free between the start of the RX buffer and the
start of the packet, handle this.
Get rid of the "hotplug-status" hack, we now have proper tools to deal with
it in userland.
Various minor fixes and code reorg.
the mbuf's size. Set it to a proper value before calling m_copyback().
This should fix panics in m_makewritable() reported by several peoples.
While there, add MCLAIM() calls where appropriate, a few more #ifdef DEBUG
checks, and various minor fixes.
With sock_loan_thresh=4096, sb_lowat==sb_hiwat, and sowritable will never
be true (even if only a single byte is pending). Some programs (like screen)
expect select() to return that a socket is writable on a socket when there
is space to write to it. XXX: What is the right thing to do here?
Specifically eap but no midi, which makes sense if you want sound,
and umidi but no midi, which makes little sense but shouldn't fail the
build.
Suggest changing the evbarm conf files containing umidi but #midi
to comment out umidi as well (even though this fix should let them build).
make sillyrename (try to) use LINK operation rather than RENAME.
PR/33861 from Jed Davis. he provided the almost same patch.
according to him, it also happen to be what opensolaris does in this case.
from the PR:
> In nfs_rename(), if the destination appears to exist and is "in use"
> (this check is apparently satisfied even if the file isn't in use by
> anything except the rename itself), it will sillyrename it, then delete
> the sillyrenamed file even if the rename fails -- for instance, because
> the "from" file no longer exists on the server.
> mkdir a b; touch a/x; perl -e 'fork(); rename("a/x","b/x") or die "$!\n"'
>
> Afterwards, neither a/x nor b/x will exist.
> 1) Lookup of b/x; fails with NOENT.
> 2) Rename from a/x to b/x; succeeds.
> 3) Lookup of b/x; fails with NOENT.
> 4) Rename from b/x to b/.nfsA23a3; succeeds.
> 5) Rename from a/x to b/x; fails with NOENT.
> 6) Remove of b/.nfsA23a3; succeeds.
