Date: Fri, 29 Nov 1996 13:12:45 +0100 (MET) From: Gunther Hipper <gunther@informatik.uni-rostock.de> To: freebsd-smp@FreeBSD.org Subject: Problems: includes / segmentation faults / latest SMP-kernel doesn't boot Message-ID: <199611291212.NAA27254@donau.informatik.uni-rostock.de>
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Hi all !
Now - i (less) successfully got an SMP kernel up and running.
Board is Gigabyte DX, the relevant kernel configuration as follows:
options SMP # Symmetric MultiProcessor Kernel
#options APIC_IO # Symmetric (APIC) I/O
options NCPU=2 # number of CPUs
options NBUS=2 # number of busses
options NAPIC=1 # number of IO APICs
options NINTR=21 # number of INTs
The first thing:
When i did "make most; make installmost; cd /usr/src/sys-SMP/compile/SMP",
i had to make links/copies of the opt_smp.h.
i used the following commands:
cp /usr/src/sys-SMP/compile/SMP/opt_smp.h /usr/src/sys/sys
cp /usr/src/sys-SMP/compile/SMP/opt_smp.h /usr/src/sys/i386/isa
cp /usr/src/sys-SMP/compile/SMP/opt_smp.h /usr/include/machine
cp /usr/src/sys-SMP/compile/SMP/opt_smp.h /usr/include
Is this a fault in the configuration of my includes or is it not my
fault ? There seem to be lots of "opt_smp.h" and <opt_smp.h> ....
Shouldn't these be all <opt_smp.h> ? If not, how about putting
some copy/link sequence in the /usr/sbin/config SMP ?
The second (and mayor) problem:
I started last week on a config-file without turning APIC_IO on. The problem
in this case was that a reboot or halt just got a segmentation fault,
as other commands (i think also ls, ps). The following from /var/log/messages:
Nov 27 19:48:39 fcna1 /kernel: pid 1478 (reboot), uid 0: exited on signal 10 (core dumped)
Nov 27 19:48:45 fcna1 /kernel: pid 1479 (ls), uid 0: exited on signal 11 (core dumped)
Nov 27 19:48:57 fcna1 /kernel: pid 1485 (hostname), uid 0: exited on signal 8 (core dumped)
ps, reboot - okay that's mainly kernel-dependent stuff. But i started
wondering why ls didn't work. The whole binaries were built of the CVS
set (with the sys/sys-includes etc. from the smp set of src-sys).
When i turned on APIC_IO, the kernel came up booting, i got
the SMP: messages. But the kernel stopped after telling that
APIC successfully turned on ...
What could be the reason for this ??
The third (and the BIGGEST) problem:
I just supped the lastest version of the kernel and compiled it.
Conf is the same as metioned in the beginning.
Now i get the following messages (last from file kern/init_main.c, smp_idleloop():
SMP: Idle procs online, starting an AP !
AP CPU #1 Launched ! Starting Scheduling ...
TADA! CPU#1 made it into the scheduler
and the final one is
SMP: All 2 CPU's are online!
And that's it - no more booting......... please help. Give me hints,
what could i do to find out a bit more.
It's probably not a fault in smp_idleloop(), where else ?
Could it be an idle SCSI controller (IRQ problem) .. ?
The SMP-kernel before worked well (only the segmentation faults).
Bye
Gunther
Gunther Hipper |
University of Rostock |
Department of Computer Science | Tel +49 381 498 3391
Albert-Einstein-Str. 21 | Fax +49 381 498 3440
18051 Rostock - Germany | Email Gunther.Hipper@informatik.uni-rostock.de
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