Date: Sun, 19 Aug 2001 21:19:28 -0400 (EDT) From: Andrew Gallatin <gallatin@cs.duke.edu> To: John Baldwin <jhb@FreeBSD.ORG> Cc: alpha@FreeBSD.ORG, "David O'Brien" <obrien@FreeBSD.ORG>, imp@FreeBSD.ORG Subject: Re: today's kernel + JHB's trap.c patch is *evil* Message-ID: <15232.26016.723068.885342@grasshopper.cs.duke.edu> In-Reply-To: <XFMail.010817171403.jhb@FreeBSD.org> References: <XFMail.010817152540.jhb@FreeBSD.org> <XFMail.010817171403.jhb@FreeBSD.org>
next in thread | previous in thread | raw e-mail | index | archive | help
John Baldwin writes: > As to why the 4100 hasn't seen this, it may be that the slower CPU's are > preventing this race from happening, or that 21164's use a stricter memory > ordering than 21264's. I've seen similar issues where my dual P3 600 would > have problems when my dual PPro 200 wouldn't. > 21264s are the first alpha to do out of order execution. Perhaps this has something to do with it. FWIW, my UP1000 that I gripe about -current stability problems on is a 21264 also.. Drew To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?15232.26016.723068.885342>