Has anybody had any joy in getting 6.0 to install on a Dell SC600 server. The system runs fine under 5.3 and 5.4, but hangs just after attempting to init the atapi intefaces on 6.0. The only unusal thing I can see is that the system has 3 IDE channels. There are HD's on both master and slave of channel 0, nothing on channel 1 and a cd rom on the master of channel 2. Here is a dump of the dmesg, uname and pciconf for the 5.3 boot. uname -a FreeBSD bsd02.contentspace.priv 5.3-RELEASE FreeBSD 5.3-RELEASE #0: Fri Nov 5 04:19:18 UTC 2004 root@harlow.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC i386 dmessg Copyright (c) 1992-2004 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-RELEASE #0: Fri Nov 5 04:19:18 UTC 2004 root@harlow.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC Timecounter "i8254" frequency 1193182 Hz quality 0 CPU: Intel(R) Celeron(R) CPU 1.80GHz (1799.81-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0xf13 Stepping = 3 Features=0x3febfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM> real memory = 805240832 (767 MB) avail memory = 778231808 (742 MB) ACPI APIC Table: <DELL PE600SC > ioapic0: Changing APIC ID to 1 ioapic1: Changing APIC ID to 2 ioapic2: Changing APIC ID to 3 MADT: Forcing active-low polarity and level trigger for SCI ioapic0 <Version 1.1> irqs 0-15 on motherboard ioapic1 <Version 1.1> irqs 16-31 on motherboard ioapic2 <Version 1.1> irqs 32-47 on motherboard npx0: [FAST] npx0: <math processor> on motherboard npx0: INT 16 interface acpi0: <DELL PE600SC> on motherboard acpi0: Power Button (fixed) acpi0: reservation of 800, 1a (4) failed acpi_timer0: couldn't allocate resource (port 0x808) cpu0: <ACPI CPU> on acpi0 pcib0: <ACPI Host-PCI bridge> on acpi0 pci0: <ACPI PCI bus> on pcib0 em0: <Intel(R) PRO/1000 Network Connection, Version - 1.7.35> port 0xecc0-0xecff mem 0xfe100000-0xfe11ffff irq 17 at device 2.0 on pci0 em0: Ethernet address: 00:c0:9f:23:ac:d9 em0: Speed:N/A Duplex:N/A pci0: <display, VGA> at device 8.0 (no driver attached) atapci0: <ServerWorks CSB6 UDMA66 controller> port 0x900-0x90f,0x36c-0x36f,0x168-0x16f,0x3ec-0x3ef,0x1e8-0x1ef irq 11 at device 14.0 on pci0 ata2: channel #0 on atapci0 ata3: channel #1 on atapci0 atapci1: <ServerWorks CSB6 UDMA100 controller> port 0x8b0-0x8bf,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 15.1 on pci0 ata0: channel #0 on atapci1 ata1: channel #1 on atapci1 ohci0: <OHCI (generic) USB controller> mem 0xfe120000-0xfe120fff irq 5 at device 15.2 on pci0 ohci0: [GIANT-LOCKED] 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: 2 ports with 2 removable, self powered isab0: <PCI-ISA bridge> at device 15.3 on pci0 isa0: <ISA bus> on isab0 fdc0: <floppy drive controller> port 0x3f7,0x3f0-0x3f5 irq 6 drq 2 on acpi0 fdc0: [FAST] fd0: <1440-KB 3.5" drive> on fdc0 drive 0 atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0 atkbd0: <AT Keyboard> irq 1 on atkbdc0 kbd0 at atkbd0 atkbd0: [GIANT-LOCKED] psm0: <PS/2 Mouse> irq 12 on atkbdc0 psm0: [GIANT-LOCKED] psm0: model IntelliMouse Explorer, device ID 4 sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0 sio0: type 16550A ppc0: <ECP parallel printer port> port 0x778-0x77f,0x378-0x37f irq 7 drq 1 on acpi0 ppc0: Generic chipset (ECP/PS2/NIBBLE) in COMPATIBLE mode ppc0: FIFO with 16/16/8 bytes threshold ppbus0: <Parallel port bus> on ppc0 plip0: <PLIP network interface> on ppbus0 lpt0: <Printer> on ppbus0 lpt0: Interrupt-driven port ppi0: <Parallel I/O> on ppbus0 acpi_timer0: couldn't allocate resource (port 0x808) orm0: <ISA Option ROMs> at iomem 0xec000-0xeffff,0xc0000-0xc7fff on isa0 pmtimer0 on isa0 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 Timecounter "TSC" frequency 1799807212 Hz quality 800 Timecounters tick every 10.000 msec ad0: 38146MB <IC35L040AVVA07-0/VA2OA56A> [77504/16/63] at ata0-master UDMA100 ad1: 114498MB <SAMSUNG SP1203N/TL100-24> [232632/16/63] at ata0-slave UDMA100 Interrupt storm detected on "irq11: atapci0"; throttling interrupt source acd0: CDROM <SAMSUNG CD-ROM SC-148C/B105> at ata2-master UDMA33 Mounting root from ufs:/dev/ad0s1a em0: Link is up 100 Mbps Full Duplex pciconf -l -v hostb0@pci0:0:0: class=0x060000 card=0x00000000 chip=0x00171166 rev=0x32 hdr=0x00 vendor = 'ServerWorks (Was: Reliance Computer Corp)' device = 'CMIC-SL' class = bridge subclass = HOST-PCI hostb1@pci0:0:1: class=0x060000 card=0x00000000 chip=0x00171166 rev=0x00 hdr=0x00 vendor = 'ServerWorks (Was: Reliance Computer Corp)' device = 'CMIC-SL' class = bridge subclass = HOST-PCI em0@pci0:2:0: class=0x020000 card=0x01341028 chip=0x100e8086 rev=0x02 hdr=0x00 vendor = 'Intel Corporation' device = '82540EM Gigabit Ethernet Controller' class = network subclass = ethernet none0@pci0:8:0: class=0x030000 card=0x01341028 chip=0x47521002 rev=0x27 hdr=0x00 vendor = 'ATI Technologies Inc.' device = 'Rage XL PCI' class = display subclass = VGA atapci0@pci0:14:0: class=0x010187 card=0x01341028 chip=0x02171166 rev=0xa0 hdr=0x00 vendor = 'ServerWorks (Was: Reliance Computer Corp)' device = 'OSB6 PCI EIDE Controller (Tertiary)' class = mass storage subclass = ATA hostb2@pci0:15:0: class=0x060000 card=0x02011166 chip=0x02031166 rev=0xa0 hdr=0x00 vendor = 'ServerWorks (Was: Reliance Computer Corp)' device = 'CSB6 PCI to ISA Bridge' class = bridge subclass = HOST-PCI atapci1@pci0:15:1: class=0x01018a card=0x41341028 chip=0x02131166 rev=0xa0 hdr=0x00 vendor = 'ServerWorks (Was: Reliance Computer Corp)' device = 'OSB6/CSB6 PCI EIDE Controller' class = mass storage subclass = ATA ohci0@pci0:15:2: class=0x0c0310 card=0x02201166 chip=0x02211166 rev=0x05 hdr=0x00 vendor = 'ServerWorks (Was: Reliance Computer Corp)' device = 'OSB6 OHCI Compliant USB Controller' class = serial bus subclass = USB isab0@pci0:15:3: class=0x060100 card=0x02301166 chip=0x02271166 rev=0x00 hdr=0x00 vendor = 'ServerWorks (Was: Reliance Computer Corp)' device = 'CSB6 PCI Bridge' class = bridge subclass = PCI-ISA