Date: Tue, 29 Mar 2005 03:02:02 +0400 From: Rojer <myself@rojer.pp.ru> To: ulf@Alameda.net Cc: Greg Eden <greg@warprecords.com> Subject: Re: FreeBSD 5.3R SMP Kernel not detecting 2nd CPU in a HP DL360(?) Message-ID: <42488CEA.2020507@rojer.pp.ru> In-Reply-To: <20050328221531.GA13841@seven.alameda.net> References: <b1c5f0fd4371c90fd222da400066e69e@warprecords.com> <20050328221531.GA13841@seven.alameda.net>
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This is a cryptographically signed message in MIME format. --------------ms050701000700080601060006 Content-Type: text/plain; charset=KOI8-R; format=flowed Content-Transfer-Encoding: 7bit Ulf Zimmermann wrote: > > I have a DL380 g3 with dual P4-3.2GHz 1MB L3 cache, the kern conf has > just "options SMP" to make it work. Here is the top part and bottom part > of dmesg from boot: > ... > > SMP: AP CPU #1 Launched! > > ... > > kern.smp.active: 1 > kern.smp.disabled: 0 > kern.smp.cpus: 2 you should see 4 cpus "launching", assuming you haven't disabled hyperthreading. in fact, i have seen similar situation myself. FreeBSD would not recognize second physical CPU with hyperthreading enabled. it'd launch cpu #1 but not cpus 2 and 3. after eventually noticing it, i tried disabling hyperthreading in BIOS - it worked fine. i still had 2 cpus, but this time 2 physical cpus, and lower cpu load figures confirmed that those 2 "previous" cpus were in fact one physical + 1 hyperdreaded :) and this is not a problem of the particular server, i actually tried replacing the platform (moved hdds to the same box nearby) and it behaved in exactly the same manner. the platform is Fujitsu RX200 (2 x 2.8 Xeon), OS is FreeBSD 4.11-PRERELEASE. i still kinda have a box to play with (can bring it down to test during weekend), so if someone can offer insight, i can provide more info and maybe even a short-term remote ssh/serial console access. -- Deomid Ryabkov aka Rojer myself@rojer.pp.ru rojer@sysadmins.ru ICQ: 8025844 --------------ms050701000700080601060006 Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; 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