New alpha 5.x bug
Wilko Bulte
wkb at freebie.xs4all.nl
Sun Nov 16 11:56:07 PST 2003
On Wed, Nov 12, 2003 at 06:05:12PM -0500, Jeff Roberson wrote:
>
> 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.
I've been running the writer/reader combo for ~3 days, while at
the same time running buildworlds over NFS etc. Nothing wrong that I
could reproduce. Using DS10 with it's builtin dc(4) ethernet.
--
| / o / /_ _
|/|/ / / /( (_) Bulte wilko at FreeBSD.org
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