[mythtv-users] mythbackend crash - ALMOST SOLVED

[Tom Lichti]

Robin Gilks wrote:

>>Greetings
>>
>>Another problem :-((
>>
>>This one is a bit more interesting. I'm running a diskless Epia system
>>with all the filesystems NFS mounted on a server. I've just twigged that
>>the backend on the Epia system crashes when the file it is recorded gets
>>to 2048M. I'd seen this before but not associated it with anything in
>>particular as I had not at that time "stabilised" my system.
>>
>>I assume its something to do with the way I have NFS set up - I'm not
>>running quotas - but I can't see what values to tweak and where to remove
>>this limit.
>>
>>Samba had a well known limit of 2G a couple of versions back but I can't
>>see that that has any bearing at all on NFS!! ulimit doesn't have a factor
>>for file size and any googling I do for an answer assumes I'm running
>>quota.
>>
>>Hmmm - stumped :-(
>>
>>    
>>
>I've nailed it down to the NFS mounts defaulting to version 2 which has
>the  2G limit due to a cockup in my kernel config.
>
>However, thats made me think that I should have something other than the
>defaults in the client fstab - any suggestions for tuning NFS for large
>video files?
>  
>
This is the recommended option per the Myth docs: 
rsize=8192,wsize=8192,hard,intr,nfsvers=3

>I'm running Gentoo at both ends and I'm getting the error "nfs warning:
>mount version older than kernel" but its running version 3 OK according to
>/proc/mounts so what is the version difference its complaining about?
>  
>
I get that as well, never figured out why, but it works so....

Tom