Date: Tue, 11 Nov 2003 19:42:19 -0500 (EST) From: Jeff Roberson <jroberson@chesapeake.net> To: "David O'Brien" <obrien@freebsd.org> Cc: ticso@cicely.de Subject: Re: New alpha 5.x bug Message-ID: <20031111193440.M10222-100000@mail.chesapeake.net> In-Reply-To: <20031110103319.GA71114@dragon.nuxi.com>
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On Mon, 10 Nov 2003, David O'Brien wrote: > On Tue, Nov 04, 2003 at 11:18:26PM +0100, Wilko Bulte wrote: > > Hmmm.. the package builders are Miatas right? > > Yes, MX5's. > > > Are they using a PCI add-in ethernet card? > > Some are, some aren't. 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. I ran this while doing a buildworld in a loop on an XP1000 (21264). I was not able to reproduce any problems. I'm going to run it tonight on a Digital Ultimate Workstation 533au2. I had an odd experience with the au2. When I tried to install from a nfs mount of the XP1000's /usr/src and /usr/obj I would get illegal instruction errors from make. Running the same make bin on my local /usr/src produced no such errors! I wonder if there could be some nfs corruption that somehow caused this? I'm going to investigate this. From kris's report it sounds like it's either pipes or disk/bufcache/vm corruption though. NFS/networking seem unlikely at this point given the stage in packaging. Does anyone else have any more data or bug reports to add? Thanks, Jeffhome | help
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