Subject: Re: serial port - msg#00168

List: linux.nfsv4

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ty den 21.06.2005 Klokka 21:41 (-0700) skreiv marcos vieira:
> Hi people,
> I want to use a serial port from another computer without log into it. My
> idea was to mount the /dev/ttyS0 on NFS.

You cannot use NFS for this purpose. Servers do not export the contents
of special files, or fifos. The device /dev/ttyS0 would therefore be
interpreted as referring to the serial device on the _client_, not on
the server.

Cheers,
Trond

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Re: 2.6.12CITI_NFS4_ALL-1 NFSD: stale stateid

on den 22.06.2005 Klokka 08:39 (+0200) skreiv Gerhard Schneider: > Server 2.6.12CITI_NFS4_ALL-1 > CLients: 2.6.11CITIxxx to 2.6.12Trond > > Jun 22 08:28:25 ilfb11 kernel: NFSD: stale stateid > (42b7be85/00000c43/0000122a/00000001)! > Jun 22 08:28:56 ilfb11 last message repeated 92090 times > Jun 22 08:29:57 ilfb11 last message repeated 166216 times > Jun 22 08:30:58 ilfb11 last message repeated 176844 times > Jun 22 08:31:59 ilfb11 last message repeated 157331 times > > nfsds beginning to eat all CPU, load going up to no avail.. > > Server has to be rebooted.. > > Any idea? Could something have been messing with /proc/fs/nfsd/nfsv4leasetime ? Note: that message should in any case really be a dprintk() just like the stale clientid. It is hardly as if stale stateid errors are never supposed to occur in normal operation... Bruce? Grepping through fs/nfsd/nfs4state.c, it looks as if there are other cases which really need to be converted to dprintk() too. For instance "old stateid", "bad stateid", one or 2 more "stale clientids", a couple of fh_verify() fail modes... BTW: Bruce, where does NFSERR_REPLAY_ME come from? That's not one from RFC3530... Cheers, Trond

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Re: 2.6.12CITI_NFS4_ALL-1 NFSD: stale stateid

Trond Myklebust wrote: > > Could something have been messing with /proc/fs/nfsd/nfsv4leasetime ? > cat /proc/fs/nfsd/exports useful value /nfsv4leasetime nothing /nfsv4recoverydir nothing /threads nothing How to get the client causing the stale file handle - would be interesting in a big environment? GS -- Gerhard Schneider Institute of Lightweight Design and e-Mail:gs@xxxxxxxxxxxxxxxxx Structural Biomechanics (E317) Tel.: +43 1 58801 31716 Vienna University of Technology / Austria Fax: +43 1 58801 31799 A-1040 Wien, Gusshausstrasse 27-29 http://www.ilsb.tuwien.ac.at/~gs/ signature.asc Description: OpenPGP digital signature _______________________________________________ NFSv4 mailing list NFSv4@xxxxxxxxxxxxx http://linux-nfs.org/cgi-bin/mailman/listinfo/nfsv4

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serial port

Hi people, I want to use a serial port from another computer without log into it. My idea was to mount the /dev/ttyS0 on NFS. I tried to mount it but nfs server respond: not a directory at mount -t nfs machineA:/dev/ttyS0 mySerialPort command. Could someone give any pointers, suggestion or help me? Thanks in advance, I appreciate it. Sincerely, Marcos Vieira

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2.6.12CITI_NFS4_ALL-1 NFSD: stale stateid

Server 2.6.12CITI_NFS4_ALL-1 CLients: 2.6.11CITIxxx to 2.6.12Trond Jun 22 08:28:25 ilfb11 kernel: NFSD: stale stateid (42b7be85/00000c43/0000122a/00000001)! Jun 22 08:28:56 ilfb11 last message repeated 92090 times Jun 22 08:29:57 ilfb11 last message repeated 166216 times Jun 22 08:30:58 ilfb11 last message repeated 176844 times Jun 22 08:31:59 ilfb11 last message repeated 157331 times nfsds beginning to eat all CPU, load going up to no avail.. Server has to be rebooted.. Any idea? Gerhard Schneider -- Gerhard Schneider Institute of Lightweight Design and e-Mail:gs@xxxxxxxxxxxxxxxxx Structural Biomechanics (E317) Tel.: +43 1 58801 31716 Vienna University of Technology / Austria Fax: +43 1 58801 31799 A-1040 Wien, Gusshausstrasse 27-29 http://www.ilsb.tuwien.ac.at/~gs/ signature.asc Description: OpenPGP digital signature _______________________________________________ NFSv4 mailing list NFSv4@xxxxxxxxxxxxx http://linux-nfs.org/cgi-bin/mailman/listinfo/nfsv4