Date: Wed, 9 Jun 1999 22:17:41 -0500 (CDT) From: Jim Bryant <jbryant@argus.tfs.net> To: Tor.Egge@fast.no Cc: freebsd-current@freebsd.org Subject: Re: 4-way SMP broken ? Message-ID: <199906100317.WAA28146@argus.tfs.net> In-Reply-To: <199906100206.EAA01848@midten.fast.no> from "Tor.Egge@fast.no" at "Jun 10, 99 04:06:12 am"
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In reply: > > interesting. then why the delay in bringing up the AP? Note in the > > dmesg output below, that the AP only comes up during th SCSI delay. I > > have also added other comments to the following output. > > The APs need the giant kernel lock when initializing the > local APIC and printing the "launched" message. > > I added code for bringing up the APs earlier, but had to disable it, > since it caused some machines to hang. The APs were probably launched > too early, causing the BSP to attempt to send IPIs before the local > APIC was initialized). > > A revised patch for bringing up the APs early is enclosed. > > - Tor Egge > > Index: mp_machdep.c > =================================================================== > RCS file: /home/ncvs/src/sys/i386/i386/mp_machdep.c,v > retrieving revision 1.102 > diff -u -r1.102 mp_machdep.c > --- mp_machdep.c 1999/06/01 18:19:42 1.102 > +++ mp_machdep.c 1999/06/08 00:27:19 the second hunk rejects. i show this: -rw-r--r-- 1 root wheel 62767 Jun 1 23:38 /usr/src/sys/i386/i386/mp_machdep.c i'll apply this by hand a little later, i'll get back with you on compatability. I am using a Tyan S1696DLUA "Thunder2" motherboard. jim -- All opinions expressed are mine, if you | "I will not be pushed, stamped, think otherwise, then go jump into turbid | briefed, debriefed, indexed, or radioactive waters and yell WAHOO !!! | numbered!" - #1, "The Prisoner" ------------------------------------------------------------------------------ Inet: jbryant@tfs.net AX.25: kc5vdj@wv0t.#neks.ks.usa.noam grid: EM28pw voice: KC5VDJ - 6 & 2 Meters AM/FM/SSB, 70cm FM. http://www.tfs.net/~jbryant ------------------------------------------------------------------------------ HF/6M/2M: IC-706-MkII, 2M: HTX-212, 2M: HTX-202, 70cm: HTX-404, Packet: KPC-3+ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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