Re: [LIP] problem with fcntl while locking file on NFS

Gaurav Varshney posted in linux-india-programmers:
> I am using fcntl for locking the file on linux (flock
> doesn't work properly on NFS), and facing problem.
> Following code works most of the time but fails
> sometime with the error message "Invalid argument"
> (EINVAL). What could be the reason for this error 
> message and how it can be handled ?
> 
> 
>    $buf  = pack("ssLL", F_WRLCK ,0,0,0);

Shouldn't that be "ssll"? man fcntl seems to think so.

I think file locking over NFS is dicey, whatever the locking method you
use. Is your NFS server Linux too? Are you dealing with big files (> 2GB)?

Binand

-- 
Hanlon's Razor: Never attribute to malice that which can be adequately
explained by stupidity.
Bruce's Razor: Never attribute to stupidity that which can be adequately
explained by Microsoft funding.


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