Date: Thu, 31 Dec 1998 12:01:25 -0600 (CST) From: Guy Helmer <ghelmer@scl.ameslab.gov> To: freebsd-smp@FreeBSD.ORG Subject: ASUS P65UP5 Dual PPro problems Message-ID: <Pine.SGI.3.96.981231115000.12762G-100000@demios.scl.ameslab.gov>
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We are having trouble with a bunch of ASUS P65UP5 machines with dual 200MHz PPro's; each machine is configured exactly the same, with 256MB RAM, a Tulip Fast Ethernet interface and IDE disk drive. Symptoms are that the machine will either freeze solid without any console message, or (according to top(1)) a process is running on CPU1 (and never changes from CPU1) but is not getting any CPU time (WCPU and CPU are both 0%). This seems to happen randomly, but usually when the processes are doing network communication. The kernel is FreeBSD SMP built from sources dated Nov 19 1998. The machine's BIOS is set to MP spec 1.4. The machines work fine under uniprocessor Linux 2.0.3x, but exhibit similar behavior with SMP Linux 2.0.3x or 2.1.x. I'm including a sample mptable(8) output below, in the hope that someone can help diagnose this. Our group has been working on this problem for some time and searching the net for info, but we have found nothing yet that would help. If dmesg output would be useful, please let me know (I neglected to capture the boot messages :-(, and now the machines are back into uniprocessor production use... =============================================================================== MPTable, version 2.0.15 ------------------------------------------------------------------------------- MP Floating Pointer Structure: location: BIOS physical address: 0x000f61b0 signature: '_MP_' length: 16 bytes version: 1.4 checksum: 0x8a mode: Virtual Wire ------------------------------------------------------------------------------- MP Config Table Header: physical address: 0x000f5daa signature: 'PCMP' base table length: 252 version: 1.4 checksum: 0xda OEM ID: 'OEM00000' Product ID: 'PROD00000000' OEM table pointer: 0x00000000 OEM table size: 0 entry count: 23 local APIC address: 0xfee00000 extended table length: 0 extended table checksum: 0 ------------------------------------------------------------------------------- MP Config Base Table Entries: -- Processors: APIC ID Version State Family Model Step Flags 1 0x11 BSP, usable 6 1 9 0xfbff 0 0x11 AP, usable 6 1 9 0xfbff -- Bus: Bus ID Type 0 PCI 1 ISA -- I/O APICs: APIC ID Version State Address 2 0x11 usable 0xfec00000 -- I/O Ints: Type Polarity Trigger Bus ID IRQ APIC ID PIN# ExtINT conforms conforms 1 0 2 0 INT conforms conforms 1 1 2 1 INT conforms conforms 1 0 2 2 INT conforms conforms 1 3 2 3 INT conforms conforms 1 4 2 4 INT conforms conforms 1 5 2 5 INT conforms conforms 1 6 2 6 INT conforms conforms 1 7 2 7 INT conforms conforms 1 8 2 8 INT conforms conforms 1 9 2 9 INT conforms conforms 1 10 2 10 INT conforms conforms 1 12 2 12 INT conforms conforms 1 14 2 14 INT conforms conforms 1 15 2 15 INT active-lo level 0 9:A 2 19 INT active-lo level 0 13:A 2 19 -- Local Ints: Type Polarity Trigger Bus ID IRQ APIC ID PIN# ExtINT active-hi edge 1 0 255 0 NMI active-hi edge 1 0 255 1 ------------------------------------------------------------------------------- # SMP kernel config file options: # Required: options SMP # Symmetric MultiProcessor Kernel options APIC_IO # Symmetric (APIC) I/O # Optional (built-in defaults will work in most cases): #options NCPU=2 # number of CPUs #options NBUS=2 # number of busses #options NAPIC=1 # number of IO APICs #options NINTR=24 # number of INTs =============================================================================== Thanks in advance! Guy Helmer Guy Helmer, Graduate Student, Iowa State University Dept. of Computer Science Research Assistant, Ames Laboratory --- ghelmer@scl.ameslab.gov Research Assistant, Dept. of Computer Science --- ghelmer@cs.iastate.edu http://www.cs.iastate.edu/~ghelmer To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message
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