Date: Thu, 27 Feb 2003 13:47:06 -0500 (EST) From: John Baldwin <jhb@FreeBSD.org> To: Trish Lynch <trish@bsdunix.net> Cc: freebsd-current@FreeBSD.ORG, Slawek Zak <zaks@prioris.mini.pw.edu.pl> Subject: RE: HyperThreading not working? Message-ID: <XFMail.20030227134706.jhb@FreeBSD.org> In-Reply-To: <20030226174154.G830-100000@femme>
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On 26-Feb-2003 Trish Lynch wrote: > On Wed, 26 Feb 2003, John Baldwin wrote: > >> >> On 26-Feb-2003 Slawek Zak wrote: >> > Hi, >> > >> > I'm in the process of installing 5.0-RELEASE-p3 on a Dell PowerEdge >> > 2600 server. It has two HyperThreading Xeon 2.4Ghz processors, but >> > HyperThreading is not working in FreeBSD. I guess that four >> > processors should be visible in the system after boot. Yes - I've >> > enabled `Logical Processors' in BIOS. BIOS revision is the latest >> > available. >> > >> > Any thoughts? I attach full dmesg and mptable output. Kernel >> > config too. >> >> 5.0 doesn't support HyperThreading. The upcoming 5.1 and 4.8 releases >> will support it. >> > > it doesn't? I have a 5.0-R box that surely does support HTT. Your motherboard has an extra special BIOS. Most BIOS do not enumerate logical CPU's in the mptable and require the extra patches to work. -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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