Ajay Shekhawat wrote:
> On Tue, Apr 03, 2001 at 06:40:09PM -0400, Russell Cattelan wrote:
> > We haven't been able to duplicate this panic locally yet.
> > Could you let us know what you are using for test machines
> > client and server, number of processors in each, kernel version,
> > linux distro version, speed of network between the machines.
> > Finally what are you doing to "stress" nfs?
>
> The server is a dual P-II 450MHz machine with an ASUS P2B-DS motherboard
> and 256MB memory. It has a 3c905B ethernet card, leading to a Cisco
> Cat 5000 switch. This machine is running RedHat Wolverine, with the
> kernel upgraded to 2.4.3-XFS (i.e., stock 2.4.3 with the XFS patches).
> It has an onboard AIC7890 SCSI controller.
> It has 3 Seagate ST34502LW 4GB SCSI disks. One of these disks has been
> formatted as XFS, and is exported via NFS.
> The server has NFSv3 support enabled, and kernel NFSD.
>
> The clients are 4 Linux boxes, each running RH6.2 or RH7.0. All have 100bT
> ethernet hooked to the Cat 5000.
>
> All of the clients mount the exported filesystem from the server. This
> filesystem contains 1000 files of 3MB each. There is a "file list"
> at the top level, which contains a list of all the files including the full
> pathname.
Looks like a fairly standard configuration.
>
>
> Each of the clients runs a Perl script in a tight loop which does the
> following:
> - Grabs a random filename from this list
> - stat()s and opens that file, and reads the entire contents
> - close()s the file
This part is what we need to duplicate.
can you send us this script?
>
>
> One of the clients (a dual P-III 800MHz box) has a script that also
> continuously writes files of size [4K .. 1MB]; it keeps at most 32 files
> around, deleting old ones as it creates new ones.
>
> This test setup looks weird, but it is designed to sort of simulate the
> end use that this server is likely to get.
>
> After about 18 hours or so of usage, the machine gets an oops. In this
> time, the clients have each read about 38000 files each.
>
> Ajay
--
Russell Cattelan
--
Digital Elves inc. -- Currently on loan to SGI
Linux XFS core developer.
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