Date: Mon, 22 Nov 1999 10:52:48 -0500 (EST) From: Garrett Wollman <wollman@khavrinen.lcs.mit.edu> To: John Polstra <jdp@polstra.com> Cc: current@FreeBSD.ORG Subject: RE: Route table leaks Message-ID: <199911221552.KAA84691@khavrinen.lcs.mit.edu> In-Reply-To: <XFMail.991121195840.jdp@polstra.com> References: <199911220150.UAA78559@khavrinen.lcs.mit.edu> <XFMail.991121195840.jdp@polstra.com>
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<<On Sun, 21 Nov 1999 19:58:40 -0800 (PST), John Polstra <jdp@polstra.com> said:
>> [quoting me:]
>> What does `netstat -ran' say? You're not seeing all the routes
>> without the `-a' flag.
> It lists some additional routes with -a, but not many. Here's the
> latest output (still growing, as you can see):
> cvsup-master# vmstat -m | grep 'routetbl '
> routetbl 822 115K 115K 21221K 2669 0 0 16,32,64,128,256
Hmmm. On one of my machines:
Memory statistics by type Type Kern
Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)
routetbl 171 24K 184K 10366K 976273 0 0 16,32,64,128,256
Looks fine. Another machine says:
routetbl 2755 384K 394K 42708K 928043 0 0 16,32,64,128,256
It also tells me:
root@xyz(49)$ netstat -ran | wc -l
118
root@xyz(50)$ netstat -ran | fgrep default
default 18.24.10.3 UGc 25 13963 ti0
root@xyz(51)$ netstat -f inet -n | wc -l
1331
Now things start to make sense:
root@xyz(55)$ netstat -f inet -n | fgrep CLOSING | wc -l
1287
(this machine still has the bug that Jonathan Lemon fixed). Now it's
clear what's going on. The ``missing'' routes have been deleted from
the routing table, but have not yet been freed because these old PCBs
still hold a reference.
-GAWollman
--
Garrett A. Wollman | O Siem / We are all family / O Siem / We're all the same
wollman@lcs.mit.edu | O Siem / The fires of freedom
Opinions not those of| Dance in the burning flame
MIT, LCS, CRS, or NSA| - Susan Aglukark and Chad Irschick
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