Re: the shell will make the xfs fs locked

[tom wang <wddi_1976@xxxxxxxxxxxx>]

Hope you will be soon fix this problem.
because we are now testing xfs filesystem and 
decide wether use xfs as the file server in our 
product.

thanks.

 --- Eric Sandeen <sandeen@xxxxxxx> 的正文：> We're
looking at the problem here, and we can
> duplicate it.
> 
> It will be a hard problem to solve, but the main
> problem is that you are
> creating so many extents in the file.  If you do not
> create so many
> extents, you will not have this problem.
> 
> -Eric
> 
> On Tue, 2002-10-01 at 04:24, tom wang wrote:
> > xfs-developers:
> >  when I run the shell program as following on a
> xfs
> > FS, the process will locked.
> > 
> > #!/bin/sh
> > for((i=0;i<300000;i++)); do
> >      truncate /mnt/current/a $(($i*8192));
> >      cat /tmp/4kfile >> /mnt/current/a
> > done
> > /tmp/4kfile is a 4096-sized file
> > xfs FS  mounted at /mnt/current
> > the truncate program:
> >      
> > #include <unistd.h>
> > #include <stdlib.h>
> > #include <stdio.h>
> > 
> > int main(int argc, char *argv[])
> > {
> >     long long length = 0;
> > 
> >     if( argc < 2 || argc > 3 ){
> >             printf("Usage: truncate filename [length]\n");
> >             return -1;
> >     }
> > 
> >     if( argv[2] )
> >             length = atoll(argv[2]);
> > 
> >     if( truncate64( argv[1], length ) ){
> >             perror("truncate failed");
> >             return -1;
> >     }
> >     return 0;
> > }
> > 
> > 
> >
>
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> -- 
> Eric Sandeen      XFS for Linux    
> http://oss.sgi.com/projects/xfs
> sandeen@xxxxxxx   SGI, Inc.         651-683-3102
>  

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