On Wed, 2002-10-02 at 20:27, tom wang wrote:
>
>
> 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.
The particular scenario you are testing created 64K
extents in a file before it died here. What you are
doing here does not bear a lot of resemblance to
any reasonable application I can think of.
As Eric said, this is not a simple thing to fix, and
probably not something which will get fixed completely
for a while.
Steve
>
> thanks.
>
> --- Eric Sandeen <sandeen@xxxxxxx> µÄÕýÎÄ£º> 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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