From owner-freebsd-alpha@FreeBSD.ORG  Wed Nov 12 15:05:16 2003
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Date: Wed, 12 Nov 2003 18:05:12 -0500 (EST)
From: Jeff Roberson <jroberson@chesapeake.net>
To: "David O'Brien" <obrien@freebsd.org>
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cc: alpha@freebsd.org
cc: ticso@cicely.de
cc: Kris Kennaway <kris@obsecurity.org>
Subject: Re: New alpha 5.x bug
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On Wed, 12 Nov 2003, Jeff Roberson wrote:

>
> On Wed, 12 Nov 2003, David O'Brien wrote:
>
> > On Tue, Nov 11, 2003 at 07:42:19PM -0500, Jeff Roberson wrote:
> > > I wrote some code last night to write a predictable pattern of bytes on
> > > one side of a pipe and read it back in on another.  I ran several sets of
> > > these programs over night, one doing 16byte transfers, another doing
> > > 16384, and another doing 100,000,000 bytes in 2xPAGE_SIZE chunks.
> >
> > Can you post the test code?  Maybe Kris could run it on the Alpha custer
> > during some builds also.
> >
>
> http://www.chesapeake.net/~jroberson/reader.c && writer.c
>
> I use ./writer | ./reader
>
> You can specify a size, such as: ./writer 16384 | ./reader 16384
>
> The sizes must match.  They will read and write at most 32k at a time,
> using multiple passes for larger sizes.
>

I forgot to mention, I'm doing this over nfs to a disk on a second alpha
system as well.  This should catch any disk or nfs related corruption.
I'm also doing buildworlds on both machines.


> Cheers,
> Jeff
>
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