So I created  a 17 gig file using Linux 2.2.9 & a file in /tmp.  Interestingly
enough at 17 gig I get an error 22 ( still have space & inodes available ) .
YOU ALSO NOW HAVE A CORRUPT / BUSTED-SUPER-BLOCK in the partition.
fsck wants to use an alternate superblock, and suggests using 8192(?), which
doesn't work. :-\
this is the little pgm used to create the 17gig sparse file.
So I guess its not a 2/4gig boundary problem anymore.
gat

BTW it may be that fsck cant handle it ( redhat 5.0 vintage ), but I dunno at the
moment :( It just at reboot time, i always force a fsck. Removeing the 17gig file
didn't help :-(


Pgm used:
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
/********************  BE CAREFULL ******************************/
/* This can kill the superblock on the partition the file is written on */
/* Which may not be recoverable                 gat 6/5/99      */
/******************** BE CAREFULL *******************************/

main()
{
        long    l,r;
        int     e, w;
        int     fd;
        fd = open("c",O_RDWR|O_CREAT|O_TRUNC);

        for ( l=0; l < 64000000000L; l+=1000000) {
            r = lseek(fd, l, 0);
            w = write(fd,"a",1);
            fprintf(stderr,"r=%lx, w=%d, l=%ld\n", r,w,l);
        }
}


Uncle George wrote:

> Gee, looks like 15gig.
>
> Ok, is this a feature of 2.2.x ? right ? or on on a diff os?
>
> Wes Bauske wrote:
>
> > Uncle George wrote:
> > >
> > > I dont know what u mean by "capable", but partition size may be >2gig ( at
> > > the time I had only a 4 gig drive ), but file size was still 2gig.  This was
> > > with a 2.0linux on a redhat 4.0 compilation CD for the alpha.
> > > Discussions since then about this limitation, only suggested that it was
> > > possible to do, but not yet done so. After ALL why hold back?
> > > Now u say its always been here ? I'd like to believe u, but my empirical
> > > experience says thats just  not true.
> > >
> > > ANYBODY out there can create a file >2gig on linux/alpha ?
> > > gat
> >
> > Sure.
> >
> > -rw-r--r--   1 wsb      pds      15039538080 May 16 23:01 junk
> >
> > Just having troubles lseek()'ing into it past 2GB. Still
> > testing though so hopefully I can determine if it's
> > something I did wrong, or glibc/kernel.


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