From owner-freebsd-smp Thu Mar 13 17:32:28 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id RAA03919 for smp-outgoing; Thu, 13 Mar 1997 17:32:28 -0800 (PST) Received: from corona.jcmax.com (corona.jcmax.com [204.69.248.2]) by freefall.freebsd.org (8.8.5/8.8.5) with SMTP id RAA03905 for ; Thu, 13 Mar 1997 17:32:15 -0800 (PST) Received: by corona.jcmax.com (5.65/2.48G/4.1.3_U1) id AA02640; Thu, 13 Mar 97 20:32:04 -0500 Date: Thu, 13 Mar 97 20:32:04 -0500 From: cr@jcmax.com (Cyrus Rahman) Message-Id: <9703140132.AA02640@corona.jcmax.com> To: smp@freebsd.org Subject: System locks up with APIC_IO enabled Sender: owner-smp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk A few days ago I downloaded the 3.0-SMP code and tried it out on a Gigabyte GA586DX motherboard with 2 pentium-200's. The code works extremely well and it's pretty impressive to see what the box can do. The kernel works fine under very considerable loads, e.g. large make's, cpu-intensive loading, etc. But there is a problem that occurs while I stream in lots of data from an SMC 100mbit ethernet card while the cpu's are busy. Namely, if I generate an interrupt from the ISA bus the system freezes up completely with some regularity. Moving the PS/2 mouse or using the sound card are both pretty good ways of doing this. The problem doesn't occur if I stream data in through the same SMC card at 10mbit/sec, or (at least, not as often) if the cpu's aren't busy. The problem also doesn't occur with the UP kernel or if APIC_IO isn't enabled. Not being that familiar with FreeBSD (I last did any serious kernel work on the PDP-11 and Vax), I'm a bit baffled about how to go about tracking the problem down. I haven't figured out any way of examining the state of the system after it locks up, or even of generating a crash dump. I can't invoke the kernel debugger while the system is locked because it appears that the keyboard interrupts are masked. So I'm writing for two reasons - first, to mention that there does still appear to be at least one disruptive problem with the APIC_IO code, and second, to ask if anyone has any ideas for how I might go about locating the problem. Any suggestions would be greatly appreciated. Cyrus From owner-freebsd-smp Thu Mar 13 21:35:21 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id VAA22827 for smp-outgoing; Thu, 13 Mar 1997 21:35:21 -0800 (PST) Received: from Ilsa.StevesCafe.com (sc-gw.StevesCafe.com [205.168.119.191]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id VAA22799 for ; Thu, 13 Mar 1997 21:35:08 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by Ilsa.StevesCafe.com (8.7.5/8.6.12) with SMTP id WAA22011; Thu, 13 Mar 1997 22:34:58 -0700 (MST) Message-Id: <199703140534.WAA22011@Ilsa.StevesCafe.com> X-Authentication-Warning: Ilsa.StevesCafe.com: Host localhost [127.0.0.1] didn't use HELO protocol X-Mailer: exmh version 1.6.5 12/11/95 From: Steve Passe To: cr@jcmax.com (Cyrus Rahman) cc: smp@freebsd.org Subject: Re: System locks up with APIC_IO enabled In-reply-to: Your message of "Thu, 13 Mar 1997 20:32:04 EST." <9703140132.AA02640@corona.jcmax.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Thu, 13 Mar 1997 22:34:58 -0700 Sender: owner-smp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Hi, > A few days ago I downloaded the 3.0-SMP code and tried it out on a Gigabyte > GA586DX motherboard with 2 pentium-200's. > > The code works extremely well and it's pretty impressive to see what the > box can do. The kernel works fine under very considerable loads, e.g. large > make's, cpu-intensive loading, etc. > > But there is a problem that occurs while I stream in lots of data from an > SMC 100mbit ethernet card while the cpu's are busy. Namely, if I generate > an interrupt from the ISA bus the system freezes up completely with some > regularity. Moving the PS/2 mouse or using the sound card are both pretty > good ways of doing this. > > The problem doesn't occur if I stream data in through the same SMC card at > 10mbit/sec, or (at least, not as often) if the cpu's aren't busy. > > The problem also doesn't occur with the UP kernel or if APIC_IO isn't > enabled. > > Not being that familiar with FreeBSD (I last did any serious kernel work on > the PDP-11 and Vax), I'm a bit baffled about how to go about tracking the > problem down. I haven't figured out any way of examining the state of the > system after it locks up, or even of generating a crash dump. I can't > invoke the kernel debugger while the system is locked because it appears > that the keyboard interrupts are masked. > > So I'm writing for two reasons - first, to mention that there does still > appear to be at least one disruptive problem with the APIC_IO code, and > second, to ask if anyone has any ideas for how I might go about locating > the problem. from a mailing in the archive: ----------------------------------- cut ----------------------------------- >J Wunsch writes: > Brian, if you got physical access to the box, try placing a simple > card into the PC that hooks ISA pins A1/B1 to a pushbutton. Pushing > it will cause an NMI (``IO channel check condition''), hopefully > leaving you a coredump. > >Anyone with a good source of ready-made cards? I hate to suggest this, since it is both risky and a dangerous hack, but if you can get the case off, and have a paper clip, an NMI is just a moment away. Bend the paper clip into a wedge shape at the end, then short the two ISA "pins" closest to the rear end of the PC. Don't try this at home, then blame me if it fries your motherboard! I have done it many a time myself, but I certainly can't guarantee it. It's those pesky endless loops after "cli". Paper clip drawing (don't laugh!): --------------------\ \ / ----/ Except, make it more pointy, so that it fits into the card slot, and makes good connection. Slot: +-------------+ +------------------------------------a+ | | | | +-------------+ +------------------------------------b+ Short the last two pins a and b ---------------------^ ----------------------------------- cut ----------------------------------- I DEFINATELY suggest the switch method, have it set up ready to go, then run your experiment. push the button when the system wedges and you hopefully will get a panic. don't try this unless you understand the process and are comfortable with it. That unused turbo switch might be just the thing for the job. There is experimental code in the APIC INTerrupt section that attempts to avoid blocking INTs unless it has to. Unfortunately although this is my area of responsibility I don't have an SMP machine or code up at this point, so I can't be a lot of help... The area you will probably want to poke around in is i386/isa: vector.s, isa.c, icu.s (if my memory is any good) ping me with any clues you gather and maybe something will click... -- Steve Passe | powered by smp@csn.net | SMP FreeBSD From owner-freebsd-smp Fri Mar 14 14:24:21 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id OAA15506 for smp-outgoing; Fri, 14 Mar 1997 14:24:21 -0800 (PST) Received: from dworkin.wustl.edu (dworkin.wustl.edu [128.252.169.2]) by freefall.freebsd.org (8.8.5/8.8.5) with SMTP id OAA15501 for ; Fri, 14 Mar 1997 14:24:13 -0800 (PST) Received: from localhost (anshul@localhost) by dworkin.wustl.edu (8.6.10/8.6.6.yuck) with SMTP id QAA06830 for ; Fri, 14 Mar 1997 16:32:00 -0600 Message-Id: <199703142232.QAA06830@dworkin.wustl.edu> X-Authentication-Warning: dworkin.wustl.edu: Host localhost didn't use HELO protocol To: freebsd-smp@freebsd.org Subject: High-level questions.. Date: Fri, 14 Mar 1997 16:31:59 -0600 From: Anshul Kantawala Sender: owner-smp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Hi, Here are a couple of basic questions I have: 1. Is this a true multithreaded kernel? (Specifically, can I run in parallel multiple protocol processing kernel threads?) 2. If so, how does it handle sharing of kernel data? I was wondering if there is any documentation about the design of FreeBSD running over a multiprocessor design. Thanks a lot! Anshul Kantawala Research Associate ARL Dept. of Computer Science Washington University St. Louis, MO 63130 From owner-freebsd-smp Fri Mar 14 15:01:18 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id PAA17208 for smp-outgoing; Fri, 14 Mar 1997 15:01:18 -0800 (PST) Received: from news.quick.net (donegan@news.quick.net [207.212.170.1]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id PAA17201 for ; Fri, 14 Mar 1997 15:01:15 -0800 (PST) Received: (from donegan@localhost) by news.quick.net (8.8.5/8.6.9) id PAA10495; Fri, 14 Mar 1997 15:01:07 -0800 (PST) Date: Fri, 14 Mar 1997 15:01:07 -0800 (PST) From: "Steven P. Donegan" To: freebsd-smp@freebsd.org Subject: AMD K5 Pentium Equivalents Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-smp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk I was wondering if anyone had any experience running the AMD K5 pentium equivalents in an SMP motherboard (specifically the Tyan 1563D). The chip price is such that I can buy 2 of the AMD's at 133 for less than 2 100's from Intel. The motherboard in question is running great with the current SMP release, 2x75mhz pentiums and 128M of EDO RAM. TIA Steven P. Donegan donegan@quick.net From owner-freebsd-smp Fri Mar 14 16:05:47 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id QAA20657 for smp-outgoing; Fri, 14 Mar 1997 16:05:47 -0800 (PST) Received: from Ilsa.StevesCafe.com (sc-gw.StevesCafe.com [205.168.119.191]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id QAA20598 for ; Fri, 14 Mar 1997 16:04:57 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by Ilsa.StevesCafe.com (8.7.5/8.6.12) with SMTP id RAA03482; Fri, 14 Mar 1997 17:04:41 -0700 (MST) Message-Id: <199703150004.RAA03482@Ilsa.StevesCafe.com> X-Authentication-Warning: Ilsa.StevesCafe.com: Host localhost [127.0.0.1] didn't use HELO protocol X-Mailer: exmh version 1.6.5 12/11/95 From: Steve Passe To: "Steven P. Donegan" cc: freebsd-smp@freebsd.org Subject: Re: AMD K5 Pentium Equivalents In-reply-to: Your message of "Fri, 14 Mar 1997 15:01:07 PST." Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Fri, 14 Mar 1997 17:04:40 -0700 Sender: owner-smp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Hi, > I was wondering if anyone had any experience running the AMD K5 pentium > equivalents in an SMP motherboard (specifically the Tyan 1563D). The chip > price is such that I can buy 2 of the AMD's at 133 for less than 2 100's > from Intel. The motherboard in question is running great with the current > SMP release, 2x75mhz pentiums and 128M of EDO RAM. unfortunately it can't be done. The APIC portion of the intel chip is patented and thus only exists in the intel parts. AMD/Cyrix had started something called "Open Apic" to compete, but it seems to be DOA at this point. -- Steve Passe | powered by smp@csn.net | Symmetric MultiProcessor FreeBSD From owner-freebsd-smp Fri Mar 14 16:10:14 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id QAA20876 for smp-outgoing; Fri, 14 Mar 1997 16:10:14 -0800 (PST) Received: from Ilsa.StevesCafe.com (sc-gw.StevesCafe.com [205.168.119.191]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id QAA20870 for ; Fri, 14 Mar 1997 16:10:03 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by Ilsa.StevesCafe.com (8.7.5/8.6.12) with SMTP id RAA03528; Fri, 14 Mar 1997 17:09:05 -0700 (MST) Message-Id: <199703150009.RAA03528@Ilsa.StevesCafe.com> X-Authentication-Warning: Ilsa.StevesCafe.com: Host localhost [127.0.0.1] didn't use HELO protocol X-Mailer: exmh version 1.6.5 12/11/95 From: Steve Passe To: Anshul Kantawala cc: freebsd-smp@freebsd.org Subject: Re: High-level questions.. In-reply-to: Your message of "Fri, 14 Mar 1997 16:31:59 CST." <199703142232.QAA06830@dworkin.wustl.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Fri, 14 Mar 1997 17:09:05 -0700 Sender: owner-smp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Hi, --- > Here are a couple of basic questions I have: > > 1. Is this a true multithreaded kernel? (Specifically, can I run > in parallel multiple protocol processing kernel threads?) not at this point, doing this is discussed every now and then, but no formal decisions have been made. --- > I was wondering if there is any documentation about the design of > FreeBSD running over a multiprocessor design. not really, everything that exists is either in the source or collected on the web pages: http://www.freebsd.org/~fsmp/SMP/SMP.html the SMP mailing list is also archived, and searchable via the freebsd search page. -- Steve Passe | powered by smp@csn.net | Symmetric MultiProcessor FreeBSD From owner-freebsd-smp Fri Mar 14 16:15:54 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id QAA21796 for smp-outgoing; Fri, 14 Mar 1997 16:15:54 -0800 (PST) Received: from main.gbdata.com (USR1-1.detnet.com [207.113.12.22]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id QAA21788 for ; Fri, 14 Mar 1997 16:15:47 -0800 (PST) Received: (from gclarkii@localhost) by main.gbdata.com (8.8.5/8.8.5) id SAA05823; Fri, 14 Mar 1997 18:15:20 -0600 (CST) From: Gary Clark II Message-Id: <199703150015.SAA05823@main.gbdata.com> Subject: Re: AMD K5 Pentium Equivalents To: donegan@quick.net (Steven P. Donegan) Date: Fri, 14 Mar 1997 18:15:20 -0600 (CST) Cc: freebsd-smp@freebsd.org In-Reply-To: from "Steven P. Donegan" at "Mar 14, 97 03:01:07 pm" X-Mailer: ELM [version 2.4ME+ PL22 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-smp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Steven P. Donegan wrote: > I was wondering if anyone had any experience running the AMD K5 pentium > equivalents in an SMP motherboard (specifically the Tyan 1563D). The chip > price is such that I can buy 2 of the AMD's at 133 for less than 2 100's > from Intel. The motherboard in question is running great with the current > SMP release, 2x75mhz pentiums and 128M of EDO RAM. You can run only Intel chips in FreeBSD SMP due to the fact that the others (Cyrix and AMD) use a different standard for PIC usage. (Please correct if I'm wrong on this) > > TIA > > Steven P. Donegan donegan@quick.net > Gary -- Gary Clark II (N5VMF) | I speak only for myself and "maybe" my company gclarkii@GBData.COM | Member of the FreeBSD Doc Team Providing Internet and ISP startups mail info@GBData.COM for information FreeBSD FAQ at ftp://ftp.FreeBSD.ORG/pub/FreeBSD/docs/freebsd-faq.ascii From owner-freebsd-smp Fri Mar 14 16:25:27 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id QAA22406 for smp-outgoing; Fri, 14 Mar 1997 16:25:27 -0800 (PST) Received: from news.quick.net (donegan@news.quick.net [207.212.170.1]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id QAA22397 for ; Fri, 14 Mar 1997 16:25:19 -0800 (PST) Received: (from donegan@localhost) by news.quick.net (8.8.5/8.6.9) id QAA12724; Fri, 14 Mar 1997 16:24:50 -0800 (PST) Date: Fri, 14 Mar 1997 16:24:49 -0800 (PST) From: "Steven P. Donegan" To: Steve Passe cc: freebsd-smp@freebsd.org Subject: Re: AMD K5 Pentium Equivalents In-Reply-To: <199703150004.RAA03482@Ilsa.StevesCafe.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-smp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Fri, 14 Mar 1997, Steve Passe wrote: > Hi, > > > I was wondering if anyone had any experience running the AMD K5 pentium > > equivalents in an SMP motherboard (specifically the Tyan 1563D). The chip > > price is such that I can buy 2 of the AMD's at 133 for less than 2 100's > > from Intel. The motherboard in question is running great with the current > > SMP release, 2x75mhz pentiums and 128M of EDO RAM. > > unfortunately it can't be done. The APIC portion of the intel chip > is patented and thus only exists in the intel parts. AMD/Cyrix had > started something called "Open Apic" to compete, but it seems to be > DOA at this point. > > -- > Steve Passe | powered by > smp@csn.net | Symmetric MultiProcessor FreeBSD > > Thank you all for the 3 almost instant responses on this question. Oh well, Intel has a lock it appears. Based on the costs I guess I'll go for the 100mhz parts (first ones that allow the motherboard to run the PCI bus at 33mhz). Cheers... Steven P. Donegan donegan@quick.net From owner-freebsd-smp Sat Mar 15 09:18:55 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id JAA00546 for smp-outgoing; Sat, 15 Mar 1997 09:18:55 -0800 (PST) Received: from cenotaph.snafu.de (gw-deadnet.snafu.de [194.121.229.33]) by freefall.freebsd.org (8.8.5/8.8.5) with SMTP id JAA00538 for ; Sat, 15 Mar 1997 09:18:47 -0800 (PST) Received: by cenotaph.snafu.de from deadline.snafu.de using smtp id m0w5x6G-000KDFC; Sat, 15 Mar 1997 18:18:32 +0100 (CET) (Smail-3.2 1996-Jul-4 #1) Received: by deadline.snafu.de id m0w5x55-0003zvC; Sat, 15 Mar 1997 18:17:19 +0100 (CET) (Smail-3.2 1996-Jul-4 #1) Message-Id: From: root@deadline.snafu.de (Andreas S. Wetzel) Subject: SMP kernel wont work with -current To: smp@freebsd.org Date: Sat, 15 Mar 1997 18:17:18 +0100 (CET) Organization: A world stranger than you have ever imagined. X-Mailer: ELM [version 2.4ME+ PL13] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-smp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Hi! --- Today I tested the SMP kernel with the most recent -current and it wont work. When booting up the machine using the SMP kernel it is unable to mount any filesystem since mount reports: exec: mount_ not found in /sbin and /usr/sbin Using an older mount binary with this kernel seems to work fine. Any ideas about that? Regards, Mickey -- (__) (@@) Andreas S. Wetzel Mail: mickey@deadline.snafu.de /-------\/ Utrechter Strasse 41 Web: http://cenotaph.snafu.de/mickey/ / | || 13347 Berlin Fon: <+4930> 456 066 90 * ||----|| Germany Fax: <+4930> 456 066 91/92 ~~ ~~ From owner-freebsd-smp Sat Mar 15 10:12:52 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id KAA02696 for smp-outgoing; Sat, 15 Mar 1997 10:12:52 -0800 (PST) Received: from cenotaph.snafu.de (gw-deadnet.snafu.de [194.121.229.33]) by freefall.freebsd.org (8.8.5/8.8.5) with SMTP id KAA02580 for ; Sat, 15 Mar 1997 10:11:31 -0800 (PST) Received: by cenotaph.snafu.de from deadline.snafu.de using smtp id m0w5xvH-000KDFC; Sat, 15 Mar 1997 19:11:15 +0100 (CET) (Smail-3.2 1996-Jul-4 #1) Received: by deadline.snafu.de id m0w5xu9-0003zvC; Sat, 15 Mar 1997 19:10:05 +0100 (CET) (Smail-3.2 1996-Jul-4 #1) Message-Id: From: root@deadline.snafu.de (Andreas S. Wetzel) Subject: Re: SMP kernel wont work with -current To: masumi@midori.jaist.ac.jp (Masumi Toyoshima) Date: Sat, 15 Mar 1997 19:10:05 +0100 (CET) Cc: smp@freebsd.org Reply-To: mickey@deadline.snafu.de In-Reply-To: <199703151803.DAA08574@midori.jaist.ac.jp> from Masumi Toyoshima at "Mar 16, 97 03:03:19 am" Organization: A world stranger than you have ever imagined. X-Mailer: ELM [version 2.4ME+ PL13] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-smp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Hi! --- Masumi Toyoshima writes: ] Here is infomation about current mount_ . ] ] Message-Id: <199703141421.AA248149263@fakir.india.hp.com> ] To: freebsd-current@freebsd.org ] Subject: Gotcha in moving to post 4.4 lite2 merge ``world''. ] Date: Fri, 14 Mar 1997 19:21:03 +0500 ] From: "A JOSEPH KOSHY" ] Sender: owner-current@freebsd.org ] X-Loop: FreeBSD.org ] Precedence: bulk ] Content-Type: text ] Content-Length: 659 ] ] ] Reassured by Peters earlier success report on making the world, I took ] the leap today and made world and rebooted. ] ] There is a minor gotcha that I got caught by: the newly built `mount' ] isn't compatible with a pre lite2 merge kernel and will fail on mounting `/'. ] ] Be sure to rebuild your kernel after `make world' and before rebooting. ] ] The fixit floppy is your friend if you do get caught by this, there is a ] copy of compatible mount on it. ] ] Thanks to all those who made the lite2 merge work! ] ] A question: is the 4.4 BSD Lite2 source being worked on by anyone? Will ] there ever be a Lite3? ] ] Thanks, ] Koshy ] My Personal Opinions Only. So if I got that right, the problem is that the lite2 code isn't yet merged into the SMP tree? -current Uniprocessor kernel works fine with the new mount, although I tapped into the same trap and rebooted my machine _before_ I had compiled a new kernel :-(((( Regards, Mickey -- (__) (@@) Andreas S. Wetzel Mail: mickey@deadline.snafu.de /-------\/ Utrechter Strasse 41 Web: http://cenotaph.snafu.de/mickey/ / | || 13347 Berlin Fon: <+4930> 456 066 90 * ||----|| Germany Fax: <+4930> 456 066 91/92 ~~ ~~ From owner-freebsd-smp Sat Mar 15 18:07:52 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id SAA00413 for smp-outgoing; Sat, 15 Mar 1997 18:07:52 -0800 (PST) Received: from po2.glue.umd.edu (root@po2.glue.umd.edu [129.2.128.45]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id SAA00404 for ; Sat, 15 Mar 1997 18:07:46 -0800 (PST) Received: from modem.eng.umd.edu (modem.eng.umd.edu [129.2.98.187]) by po2.glue.umd.edu (8.8.5/8.8.5) with ESMTP id VAA02650; Sat, 15 Mar 1997 21:07:42 -0500 (EST) Received: from localhost (chuckr@localhost) by modem.eng.umd.edu (8.8.5/8.6.4) with SMTP id VAA16380; Sat, 15 Mar 1997 21:07:41 -0500 (EST) X-Authentication-Warning: modem.eng.umd.edu: chuckr owned process doing -bs Date: Sat, 15 Mar 1997 21:07:41 -0500 (EST) From: Chuck Robey X-Sender: chuckr@modem.eng.umd.edu To: "Andreas S. Wetzel" cc: smp@freebsd.org Subject: Re: SMP kernel wont work with -current In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-smp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Sat, 15 Mar 1997, Andreas S. Wetzel wrote: > Hi! > --- > > Today I tested the SMP kernel with the most recent -current and it wont > work. When booting up the machine using the SMP kernel it is unable to > mount any filesystem since mount reports: > > exec: mount_ not found in /sbin and /usr/sbin > > Using an older mount binary with this kernel seems to work fine. > > Any ideas about that? Yeah. Peter Wemm posted (while he was doing his 4.4 Lite2 merge on current) that when he did the stuff on mount, that this would break any one not running a real recent kernel. This happens fairly often in current, so was in itself unremarkable, but when he did that, I asked him specifically about the smp kernel, and he agreed this would knock out anyone running smp from also doing current. I'm too busy to do what's needed myself, which is a merge of code from the current tree to the smp tree (which is maintained separately, in a completely different cvs tree), but until that gets done, forget about running both smp and current simultaneously. One point: smp is now runnable. When it gets updated, well, it won't be runnable during that time (wasn't last time). In order for you to get smp running again, you're going to have to check out a tree dated before the Lite-2 merge, and do a make world on that. Or maybe just live with the old mount binaries, I don't know how good an idea that would be. I won't have time to do the merge until summer, I hope smp doesn't have to wait until then. ----------------------------+----------------------------------------------- Chuck Robey | Interests include any kind of voice or data chuckr@eng.umd.edu | communications topic, C programming, and Unix. 9120 Edmonston Ct #302 | Greenbelt, MD 20770 | I run Journey2 and picnic, both FreeBSD (301) 220-2114 | version 3.0 current -- and great FUN! ----------------------------+-----------------------------------------------