From: Herbert Poetzl (herbert_at_13thfloor.at)
Date: Mon 30 Dec 2002 - 15:35:51 GMT
On Mon, Dec 30, 2002 at 04:39:46PM +0200, Burak BASKAN wrote:
>    it is all about 7 day uptime, and i hope crash problem is fixed with
>    file-max value changed action.
sorry, that is no fix, that is adjusting probabilities ...
the only usage of file-max is in fs/file_table where
it limits the number of kernel filp structures created
on demand, so if file-nr doesn't reach file-max there
is no difference whether you set it to 10240 or one
million, and if you reach the limit you'll get 
"VFS: file-max limit %d reached" and some of your tasks 
will stop working ...
>    Using 2.4.20 kernel; what is the default file-nr value? 
>    And what is the
>    normal max. value for 1gb p1.5mhz machine?
file-max is computed at kernel boot time and set to
max(n, NR_FILE) with
        n = (mempages * (PAGE_SIZE / 1024)) / 10;
        NR_FILE = 8192
best,
Herbert
>    > >
>    > >cat /proc/sys/fs/file-nr
>    > >7161    1452    10240
>    > >
>    > >When i compile new kernel,  the max value is about 103xxx and it
>    looks very
>    > >big for me, and i modify it as 10240.
>    > >
>    > >Now my uptime is about 5 days, and i hope the >crash problem is
>    about file
>    > >max value.
>    >
>    > Any news about this???
>    >
>    > i am back on ctx14 now and the box is stable
>    > with ctx16 i get 1-2 crash/days
>    >
>    > Thanks
>    >
>    >
>    > _________________________________________________________________
>    > MSN Search, le moteur de recherche qui pense comme vous !
>    > [1]http://search.msn.fr/worldwide.asp
> 
> References
> 
>    1. http://search.msn.fr/worldwide.asp