some tweaks. jmc --- mbrtowc.3 Fri Dec 3 19:33:27 2010 +++ mbrtowc.3.new Fri Dec 3 19:45:19 2010 @@ -39,7 +39,7 @@ .Sh DESCRIPTION The .Fn mbrtowc -examines at most +function examines at most .Fa n bytes of the multibyte character byte string pointed to by .Fa s , @@ -94,7 +94,7 @@ .Fa mbs . They will be used during subsequent calls of .Fn mbrtowc -to restart the conversion suspended. +to restart the suspended conversion. .Pp In state-dependent encodings, .Fa s @@ ...

Thank you. I found one error: EUC is a stateless encoding. I confused it with ISO-2022. Updated diff: Index: mbrtowc.3 =================================================================== RCS file: /cvs/src/lib/libc/locale/mbrtowc.3,v retrieving revision 1.2 diff -u -p -r1.2 mbrtowc.3 --- mbrtowc.3 31 May 2007 19:19:29 -0000 1.2 +++ mbrtowc.3 3 Dec 2010 23:16:38 -0000 @@ -28,163 +28,214 @@ .Dd $Mdocdate: May 31 2007 $ .Dt MBRTOWC 3 .Os -.\" ...

This host is a firewall doing NAT for $our_hosts_ext. It allows certain traffic from (a) our local network, $ourlocal and (b) partner networks, $networks_friendly. The intention here was to default-deny all traffic addressed to $our_hosts_ext and this host itself; I wrote separate rules for those so that I could test and log them separately, and so that I could keep the rulesets for "hosts" and "the firewall" separate in the config file. The problem is that I'm logging ssh attempts (on the ...

On Fri, Dec 3, 2010 at 7:09 AM, Mark Kettenis <mark.kettenis@xs4all.nl> I applied the patch on a recent snapshot, recompiled the kernel and can no longer reproduce the issue. NFS operations appear to work fine and I cannot reproduce the issue even after restarting nfsd multiple times. FWIW, I uncovered this issue after updating a system to 4.7--4.6 did not have this issue.

On Fri, Dec 3, 2010 at 9:09 AM, Mark Kettenis <mark.kettenis@xs4all.nl>

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tcp_update_sndspace() still rounds up to tp->t_maxseg even if SO_SNDBUF has been set. I was always wondering why the code in tcp_update_sndspace() is different from tcp_update_rcvspace(). tcp_update_sndspace() ... /* round to MSS boundary */ nmax = roundup(nmax, tp->t_maxseg); if (nmax != so->so_snd.sb_hiwat) sbreserve(&so->so_snd, nmax); } tcp_update_rcvspace() ... if (nmax == so->so_rcv.sb_hiwat) return; ...

IIRC I changed the rcvspace version because else it would alternate between sb_hiwat and roundup(sb_hiwat, tp->t_maxseg). The problem was that roundup(sb_max, tp->t_maxseg) was bigger then sb_max and so the sbreserve() would be called everytime. I guess tcp_update_sndspace() may have a similar issue but it needs to be fixed differently because the two algorithms are too different. Btw. the scaling functions are probably not perfect and if people can come up with a better algorithm I'm happy ...

Well I had been looking through the relayd code to figure out if it buffers, or how it buffers. And getting a bit confused, and figuring that libevent would do that kind of thing. Which I had only just started looking through. What I did find though was that relayd doesn't seem to set SO_SNDBUF/SO_RCVBUF unless it sets both with an explicit option. And it doesn't do so by default unless you add it to the configuration. The thing is not defining or setting it explicitally it behaved the same ...