Please post your script - and if anyone else is lurking with problems
please tell us about them too (provided they are XFS problems and not
'Childhood Issues' to quote Larry McVoy)!
Steve
> Hi all. I've been lurking for a while, trying to get a feel for how XFS
> is working for people. It seems to be working well overall, which is a
> little disappointing for me because I'm not having much luck with it.
> Perhaps I'm not living right, or something.
>
> Anyhow, I have two machines with similar hardware on which I can pretty
> reliably cause the system to lock solid. I've tried different kernels
> (linux-xfs-beta vs. linux-xfs; 2.4.1 -> 2.4.3), but the problem doesn't
> go away. The kernel is configured with the bare minimum to run an
> IDE-based server.
>
> To try to reproduce the error that users were running into, I wrote a
> simple script to pound on the fs. It hasn't made it past the first or
> second iteration on an XFS partition, because the machine will hang.
> Can't log in at the console or anything. I tried changing the logbsize
> parameter as described in the FAQ, and got better performance until the
> machine hung like it did before. I gave up after several days of
> tweaking and reformatted ext2. I would wonder if I have something
> misconfigured except for the fact that the script runs through all 30
> iterations on an ext2 filesystem without a hang.
>
> I'll post the script if requested, but basically all it does is:
> create 10000 small files in one directory
> make 10000 symlinks in another directory to the files in the first
> remove the second directory
> remove the first directory
>
> It seems to be hanging mostly during the removal stage, although I have
> seen it hang during file creation. On two of the hangs, I have seen
> some nasty file corruption.
>
> The specifics of the system are as follows:
> Dell PowerEdge 350
> Celeron 600
> 128MB RAM
> Intel 440BX chipset
>
> I've got another 350 with
> PIII 700
> 512MB RAM
>
> They both seem to exhibit similar behavior wrt XFS, although I haven't
> pounded on the second one quite as much.
>
> If anyone has any ideas, or would like more details, please let me
> know. I would really like to get XFS on these things, as they've got a
> lot of disk between the two of them.
> --
> Michael MacDonald Systems Monkey
> mjmac@xxxxxxxxxx Ximian, Inc.
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