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Re: NFSv3 Problem

thanks ,
I have installed  kernel 2.4.1 
with the latest util-linux ,modutils and raidtool (arrrgg) 
and finally I can write file >2Gb :-)
...now i must rebuild ls, mv etc.....  

On Tue, Feb 06, 2001 at 09:33:06AM -0800 or thereabouts, brian moore wrote:
> On Tue, Feb 06, 2001 at 12:06:16AM -0500, Fraser Campbell wrote:
> > Francis 'Dexter' Gois <fg@tiscali.be> writes:
> > 
> > > Not sure, but i think your problem is not with the NFS but with the ext2fs 
> > > filesystem, which cannot handle files larger than 2gb. 
> > 
> > Yes, ext2's maximum file size is 1 byte less than 2 GB (2147483647 bytes.
> Bzzt.  Wrong.  This is a limit of 2.2 and earlier kernels on 32 bit
> hardware.  It has -NOTHING- to do with the file system per se: you will
> see exactly the same situation on Reiserfs, NFS (exported from a 64 bit
> machine even!), and every other file system.
> Why?  Try 'man lseek' and note that the size of off_t, which is a 32 bit
> number on 32 bit platforms.  There are lots and lots of library and system
> calls that expect or return something of type off_t, which can not exceed
> 32 bits on a 32 bit machine without some hackery.  (See google for the
> 'large filesystem summit' for how ugly that hackery is.)
> The exact same file systems -do- support huge files on 64 bit machines.
> Why?  Again, off_t is a 64 bit number on a 64 bit machine.
> > If the remote filesystem is ext2 then this is definitely the problem.   The
> > 2.4 kernel gets around this problem at least with some filesystems (perhaps
> > still not with ext2 though) ... if you really need to create files > 2GB then
> > you should upgrade your kernel.  I've been running woody with 2.4 kernels
> > (test and "stable") for months without any problems, YMMV.
> Doesn't matter -what- the remote file system type is.
> Neither NFS nor glibc supports large files on 2.2 kernels.  Period.  Not
> with e2fs, not with nfs, not with anything.
> If you need files >=2G, you need a newer kernel or a 64 bit machine.
> --  
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