Hi, I am noticing many warnings: calcru: negative runtime of -891485461 usec for pid 45 (swi5: clock sio) in ps waux: root 45 0.0 0.0 0 8 ?? WL Tue03PM -2341058:-22.07 [swi5: clock sio] I am seeing lots more of these messages. Also from other processes i see the same message. Does this mean trouble or not? I am running an smp kernel with options PREEMPTION and the 4bsd scheduler. Version is RELENG_5, feb 8 i fetch the latest source and compiled it so the system is running from that source. Here is dmesg output of the system: Copyright (c) 1992-2005 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD 5.3-STABLE #4: Tue Feb 8 14:41:10 CET 2005 root@relay3.ordina.local:/usr/obj/usr/src/sys/Mipam Timecounter "i8254" frequency 1193182 Hz quality 0 CPU: Intel(R) Pentium(R) III CPU family 1133MHz (1125.78-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0x6b1 Stepping = 1 Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CM OV,PAT,PSE36,MMX,FXSR,SSE> real memory = 2147467264 (2047 MB) avail memory = 2095861760 (1998 MB) ACPI APIC Table: <COMPAQ 00000083> FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs cpu0 (BSP): APIC ID: 3 cpu1 (AP): APIC ID: 0 MADT: Forcing active-low polarity and level trigger for SCI ioapic1 <Version 1.1> irqs 16-31 on motherboard ioapic0 <Version 1.1> irqs 0-15 on motherboard npx0: <math processor> on motherboard npx0: INT 16 interface acpi0: <COMPAQ P24> on motherboard acpi0: Power Button (fixed) Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000 acpi_timer0: <24-bit timer at 3.579545MHz> port 0x240-0x243 on acpi0 cpu0: <ACPI CPU> on acpi0 cpu1: <ACPI CPU> on acpi0 pcib0: <ACPI Host-PCI bridge> on acpi0 pci0: <ACPI PCI bus> on pcib0 ciss0: <Compaq Smart Array 5i> port 0x2000-0x20ff mem 0xf5ef0000-0xf5ef3fff,0xf7 dc0000-0xf7dfffff irq 16 at device 1.0 on pci0 fxp0: <Intel 82559 Pro/100 Ethernet> port 0x2400-0x243f mem 0xf7c00000-0xf7cffff f,0xf7db0000-0xf7db0fff irq 18 at device 2.0 on pci0 miibus0: <MII bus> on fxp0 inphy0: <i82555 10/100 media interface> on miibus0 inphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto fxp0: Ethernet address: 00:02:a5:da:70:0d fxp1: <Intel 82559 Pro/100 Ethernet> port 0x2440-0x247f mem 0xf7a00000-0xf7affff f,0xf7bf0000-0xf7bf0fff irq 20 at device 4.0 on pci0 miibus1: <MII bus> on fxp1 inphy1: <i82555 10/100 media interface> on miibus1 inphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto fxp1: Ethernet address: 00:02:a5:da:70:0c pci0: <display, VGA> at device 5.0 (no driver attached) pci0: <base peripheral> at device 6.0 (no driver attached) isab0: <PCI-ISA bridge> at device 15.0 on pci0 atapci0: <ServerWorks ROSB4 UDMA33 controller> port 0x2c00-0x2c0f,0x376,0x170-0x 177,0x3f6,0x1f0-0x1f7 at device 15.1 on pci0 ata0: channel #0 on atapci0 ata1: channel #1 on atapci0 ohci0: <OHCI (generic) USB controller> mem 0xf5fd0000-0xf5fd0fff irq 22 at devic e 15.2 on pci0 usb0: OHCI version 1.0, legacy support usb0: SMM does not respond, resetting usb0: <OHCI (generic) USB controller> on ohci0 usb0: USB revision 1.0 uhub0: (0x1166) OHCI root hub, class 9/0, rev 1.00/1.00, addr 1 uhub0: 4 ports with 4 removable, self powered pcib1: <ACPI Host-PCI bridge> on acpi0 pci1: <ACPI PCI bus> on pcib1 pcib2: <ACPI Host-PCI bridge> on acpi0 pci7: <ACPI PCI bus> on pcib2 em0: <Intel(R) PRO/1000 Network Connection, Version - 1.7.35> port 0x3000-0x303f mem 0xf7f80000-0xf7fbffff,0xf7fe0000-0xf7ffffff irq 28 at device 3.0 on pci7 em0: Ethernet address: 00:04:23:ab:a1:3c em0: Speed:N/A Duplex:N/A em1: <Intel(R) PRO/1000 Network Connection, Version - 1.7.35> port 0x3040-0x307f mem 0xf7f00000-0xf7f3ffff,0xf7f60000-0xf7f7ffff irq 28 at device 3.1 on pci7 em1: Ethernet address: 00:04:23:ab:a1:3d em1: Speed:N/A Duplex:N/A pci7: <base peripheral> at device 7.0 (no driver attached) acpi_tz0: <Thermal Zone> on acpi0 atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0 atkbd0: <AT Keyboard> irq 1 on atkbdc0 kbd0 at atkbd0 sio0: <Standard PC COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0 sio0: type 16550A fdc0: <floppy drive controller> port 0x3f2-0x3f5 irq 6 drq 2 on acpi0 fd0: <1440-KB 3.5" drive> on fdc0 drive 0 orm0: <ISA Option ROMs> at iomem 0xee000-0xeffff,0xcc000-0xcd7ff,0xc8000-0xcbfff ,0xc0000-0xc7fff on isa0 pmtimer0 on isa0 ppc0: parallel port not found. sc0: <System console> at flags 0x100 on isa0 sc0: VGA <16 virtual consoles, flags=0x300> sio1: configured irq 3 not in bitmap of probed irqs 0 sio1: port may not be enabled vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0 Timecounters tick every 10.000 msec acd0: CDROM <Compaq CRN-8241B/2.23> at ata0-master PIO4 SMP: AP CPU #1 Launched! da0 at ciss0 bus 0 target 0 lun 0 da0: <COMPAQ RAID 5 VOLUME OK> Fixed Direct Access SCSI-0 device da0: 135.168MB/s transfers da0: 104183MB (213367680 512 byte sectors: 255H 32S/T 26148C) Mounting root from ufs:/dev/da0s1a Bye, Mipam.