Date: Wed, 12 Nov 2003 18:05:12 -0500 (EST) From: Jeff Roberson <jroberson@chesapeake.net> To: "David O'Brien" <obrien@freebsd.org> Cc: Kris Kennaway <kris@obsecurity.org> Subject: Re: New alpha 5.x bug Message-ID: <20031112180414.S10222-100000@mail.chesapeake.net> In-Reply-To: <20031112175839.F10222-100000@mail.chesapeake.net>
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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 > > _______________________________________________ > freebsd-alpha@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-alpha > To unsubscribe, send any mail to "freebsd-alpha-unsubscribe@freebsd.org" >
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