Date: Wed, 9 Apr 2003 01:31:16 -0700 From: "Aleksandr Melentiev" <tzap@pacbell.net> To: <freebsd-smp@freebsd.org> Subject: System freezes with SMP support enabled Message-ID: <001501c2fe72$63c1b040$0300a8c0@kronos>
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Hello all, A quick note: I am not subscribed here yet, please reply directly to me. Problem: Apparently SMP support and network do not work well together here. I have tried both 5.0 and 4.8 releases. Once I recompile the kernels with SMP support, I start getting constant 'watchdog timeout' on 5.0, network would halt and system would not respond. Same happens on a 4.8 machine too when I try to transfer files >1mb in size to an SMP machine, system would freeze, no error messages though. Nothing in /var/log/messages. Changing network cards and increasing NMBCLUSTERS doesnt help. No such problems occur whatsoever without SMP support. Motherboard is an Intel N440BX with two Pentium III 500Mhz CPUs. Heres a part of dmesg: Apr 8 23:40:12 kronos /kernel: FreeBSD 4.8-RELEASE #4: Tue Apr 8 22:14:12 PDT 2003 Apr 8 23:40:12 kronos /kernel: alex@kronos.homeunix.org:/usr/obj/usr/src/sys/KRONOS Apr 8 23:40:12 kronos /kernel: Timecounter "i8254" frequency 1193182 Hz Apr 8 23:40:12 kronos /kernel: CPU: Pentium III/Pentium III Xeon/Celeron (498.75-MHz 686-class CPU) Apr 8 23:40:12 kronos /kernel: Origin = "GenuineIntel" Id = 0x672 Stepping = 2 Apr 8 23:40:12 kronos /kernel: Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA, CMOV,PAT,PSE36,MMX,FXSR,SSE> Apr 8 23:40:12 kronos /kernel: real memory = 536805376 (524224K bytes) Apr 8 23:40:12 kronos /kernel: avail memory = 518299648 (506152K bytes) Apr 8 23:40:12 kronos /kernel: Programming 24 pins in IOAPIC #0 Apr 8 23:40:12 kronos /kernel: IOAPIC #0 intpin 2 -> irq 0 Apr 8 23:40:12 kronos /kernel: FreeBSD/SMP: Multiprocessor motherboard Apr 8 23:40:12 kronos /kernel: cpu0 (BSP): apic id: 1, version: 0x00040011, at 0xfee00000 Apr 8 23:40:12 kronos /kernel: cpu1 (AP): apic id: 0, version: 0x00040011, at 0xfee00000 Apr 8 23:40:12 kronos /kernel: io0 (APIC): apic id: 2, version: 0x00170011, at 0xfec00000 Apr 8 23:40:12 kronos /kernel: Preloaded elf kernel "kernel" at 0xc03e4000. Apr 8 23:40:12 kronos /kernel: Pentium Pro MTRR support enabled Apr 8 23:40:13 kronos /kernel: APIC_IO: Testing 8254 interrupt delivery Apr 8 23:40:13 kronos /kernel: APIC_IO: routing 8254 via IOAPIC #0 intpin 2 Apr 8 23:40:13 kronos /kernel: SMP: AP CPU #1 Launched! Did anyone experience anything like it? Any possible solutions? Thanks in advance. Alex. P.S. Please reply directly to me as I am not subscribed to the list yet. Thanks.
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