Date: Sun, 27 Aug 2006 22:55:55 +0300 From: Kostik Belousov <kostikbel@gmail.com> To: Michael Abbott <michael@araneidae.co.uk> Cc: freebsd-stable@freebsd.org Subject: Re: NFS locking: lockf freezes (rpc.lockd problem?) Message-ID: <20060827195555.GI79046@deviant.kiev.zoral.com.ua> In-Reply-To: <20060827183903.G52383@saturn.araneidae.co.uk> References: <20060827102135.B49194@saturn.araneidae.co.uk> <20060827135434.GH79046@deviant.kiev.zoral.com.ua> <20060827183903.G52383@saturn.araneidae.co.uk>
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[-- Attachment #1 --] On Sun, Aug 27, 2006 at 07:17:34PM +0000, Michael Abbott wrote: > On Sun, 27 Aug 2006, Kostik Belousov wrote: > >For debugging purposes, tcpdump of the corresponding communications > >would be quite useful. Besides this, output of ps auxww | grep 'rpc\.' > >may be interesting. > > Um. How interesting would tcpdump be? I'm prepared to do the work, but > as I've never used the tool, it may take me some effort and time to figure > out the right commands. Yes: `man tcpdump | wc -l` == 1543. Fancy > giving me a sample command to try? On server, tcpdump -p -s 1500 -w file -i <iface> host <client host ip> This is assuming you use ethernet with usual MTU, iface is interface where communication with client comes from. > > As for the other test, let's have a look. Here we are before the test > (NFS server, 4.11, is saturn, test machine, 6.1, is venus): > > saturn$ ps auxww | grep rpc\\. My fault, better use ps axlww. ..... > Well, how odd: as soon as I start the test process 515 on venus goes away. > Now to wait for it to fail... (doesn't take too long): Yes, this is very interesting. Does something appears in the logs ? Also, you shall use -d option of rpc.lockd (and show the output together with tcpdump output). [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (FreeBSD) iD8DBQFE8fjKC3+MBN1Mb4gRArnOAKCJZFYRt97Kx3zctxJawi+ZjuGI9ACgo6gq 1psT+mbzoLzRvZLeaI/MKfs= =NDR0 -----END PGP SIGNATURE-----
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