Date: Fri, 16 Dec 2005 09:43:54 +0100 From: Michael Sperber <sperber@informatik.uni-tuebingen.de> To: freebsd-stable@FreeBSD.ORG Cc: Oliver Fromme <olli@lurza.secnetix.de> Subject: Re: mountd fails intermittently Message-ID: <y9loe3he8j9.fsf@informatik.uni-tuebingen.de> In-Reply-To: <200512150943.jBF9habb049585@lurza.secnetix.de> (Oliver Fromme's message of "Thu, 15 Dec 2005 10:43:36 %2B0100 (CET)") References: <y9l7ja6kf1l.fsf@informatik.uni-tuebingen.de> <200512150943.jBF9habb049585@lurza.secnetix.de>
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Oliver Fromme <olli@lurza.secnetix.de> writes:
> Michael Sperber <sperber@informatik.uni-tuebingen.de> wrote:
> > Oliver Fromme <olli@lurza.secnetix.de> writes:
> > > That looks like your rpcbind(8) process died. Can you
> > > check that with ps? Also, are there any warnings or
> > > errors reported in /var/log/messages?
> >
> > No, it's still running. It shows up in rpcinfo (as does nfsd),
>
> But mountd does not show up there?
It shows up, too. It just doesn't respond to pings.
> Now the one question is: What are the circumstances under
> which the problem can be reproduced? :-) Of course I'm
> aware that that's probably a tough question.
It's pretty reproducible: A mount attempt from my one problematic
client will do it.
> 1. First of all, it might be helpful to see the contents
> of your /etc/exports. To be honest, I don't think that
> it is causing the problem, but you never know.
/storage/disk1 192.168.1.100 <a bunch of other IPs>
> 2. Does your mountd log anything to /var/log/messages?
>
No.
> 3. What flags are you using with rpcbind and mountd,
rpcbind: no flags
mountd: -r (but problem shows up without it, too)
> if
> any? What flags are you using with the mount command
> line (i.e. anything unusual)?
No flags:
mount_nfs matt://storag/disk1 <mountpoint>
> 4. Please post the output from these commands (preferably
> before failure and after failure, if possible):
> # rpcinfo
> # sockstat | egrep "mountd|rpc"
Hrm. I see that just running these commands (on the server) pretty
reliably puts it into failure mode. So here's the output from one
run:
program version netid address service owner
100000 4 tcp 0.0.0.0.0.111 rpcbind superuser
100000 3 tcp 0.0.0.0.0.111 rpcbind superuser
100000 2 tcp 0.0.0.0.0.111 rpcbind superuser
100000 4 udp 0.0.0.0.0.111 rpcbind superuser
100000 3 udp 0.0.0.0.0.111 rpcbind superuser
100000 2 udp 0.0.0.0.0.111 rpcbind superuser
100000 4 tcp6 ::.0.111 rpcbind superuser
100000 3 tcp6 ::.0.111 rpcbind superuser
100000 4 udp6 ::.0.111 rpcbind superuser
100000 3 udp6 ::.0.111 rpcbind superuser
100000 4 local /var/run/rpcbind.sock rpcbind superuser
100000 3 local /var/run/rpcbind.sock rpcbind superuser
100000 2 local /var/run/rpcbind.sock rpcbind superuser
100003 2 udp 0.0.0.0.8.1 nfs superuser
100003 3 udp 0.0.0.0.8.1 nfs superuser
100003 2 udp6 ::.8.1 nfs superuser
100003 3 udp6 ::.8.1 nfs superuser
100003 2 tcp 0.0.0.0.8.1 nfs superuser
100003 3 tcp 0.0.0.0.8.1 nfs superuser
100003 2 tcp6 ::.8.1 nfs superuser
100003 3 tcp6 ::.8.1 nfs superuser
100005 1 udp 0.0.0.0.3.247 mountd superuser
100005 3 udp 0.0.0.0.3.247 mountd superuser
100005 1 tcp 0.0.0.0.2.99 mountd superuser
100005 3 tcp 0.0.0.0.2.99 mountd superuser
100005 1 udp6 ::.3.246 mountd superuser
100005 3 udp6 ::.3.246 mountd superuser
100005 1 tcp6 ::.2.98 mountd superuser
100005 3 tcp6 ::.2.98 mountd superuser
root mountd 72379 4 udp4 *:1015 *:*
root mountd 72379 7 tcp4 *:611 *:*
root mountd 72379 8 udp6 *:1014 *:*
root mountd 72379 9 tcp6 *:610 *:*
root rpcbind 54162 4 udp6 *:* *:*
root rpcbind 54162 7 stream /var/run/rpcbind.sock
root rpcbind 54162 8 udp6 *:111 *:*
root rpcbind 54162 9 udp6 *:642 *:*
root rpcbind 54162 10 tcp6 *:111 *:*
root rpcbind 54162 11 udp4 *:111 *:*
root rpcbind 54162 12 udp4 *:673 *:*
root rpcbind 54162 13 tcp4 *:111 *:*
> 5. If all else fails, maybe tracing the mountd process
> during a failing mount attempt might be helpful.
> Personally I prefer strace (from the ports collection)
> for the more useful output, but you can also use ktrace
> which is in the base system.
I'll try that sometime over the weekend.
--
Cheers =8-} Mike
Friede, Völkerverständigung und überhaupt blabla
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