kern/151924: very slow boot from disk: 15m+

[fulvio ciriaco]

>Number:         151924
>Category:       kern
>Synopsis:       very slow boot from disk: 15m+
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Nov 03 20:10:11 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     fulvio ciriaco
>Release:        8.1-RELEASE i386
>Organization:
>Environment:
FreeBSD  8.1-RELEASE FreeBSD 8.1-RELEASE #0: Mon Jul 19 02:55:53 UTC 2010     root at almeida.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386
>Description:
Boot from disk is very slow, many times slower than it was from cdrom at install time. The system works efficiently after boot. 
The hardware is a dell d810 laptop.
Below the pci list:
-----------------------
hostb0 at pci0:0:0:0:	class=0x060000 card=0x01861028 chip=0x25908086 rev=0x03 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Mobile Intel(R) 915GM/PM/GMS/910GML Express Processor to DRAM Controller (915GM)'
    class      = bridge
    subclass   = HOST-PCI
pcib1 at pci0:0:1:0:	class=0x060400 card=0x00008086 chip=0x25918086 rev=0x03 hdr=0x01
    vendor     = 'Intel Corporation'
    device     = '82915PM/GM PCIe Graphics Port'
    class      = bridge
    subclass   = PCI-PCI
pcib2 at pci0:0:28:0:	class=0x060400 card=0x00000000 chip=0x26608086 rev=0x03 hdr=0x01
    vendor     = 'Intel Corporation'
    device     = 'PCI Express Port 1 (82801FB/FR/FW/FRW)'
    class      = bridge
    subclass   = PCI-PCI
uhci0 at pci0:0:29:0:	class=0x0c0300 card=0x01861028 chip=0x26588086 rev=0x03 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'USB UHCI Controller *1 (82801FB/FR/FW/FRW)'
    class      = serial bus
    subclass   = USB
uhci1 at pci0:0:29:1:	class=0x0c0300 card=0x01861028 chip=0x26598086 rev=0x03 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'USB UHCI Controller *2 (82801FB/FR/FW/FRW)'
    class      = serial bus
    subclass   = USB
uhci2 at pci0:0:29:2:	class=0x0c0300 card=0x01861028 chip=0x265a8086 rev=0x03 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'USB UHCI Controller *3 (82801FB/FR/FW/FRW)'
    class      = serial bus
    subclass   = USB
uhci3 at pci0:0:29:3:	class=0x0c0300 card=0x01861028 chip=0x265b8086 rev=0x03 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'USB UHCI Controller *4 (82801FB/FR/FW/FRW)'
    class      = serial bus
    subclass   = USB
ehci0 at pci0:0:29:7:	class=0x0c0320 card=0x01861028 chip=0x265c8086 rev=0x03 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'USB 2.0 EHCI Controller (82801FB/FR/FW/FRW)'
    class      = serial bus
    subclass   = USB
pcib3 at pci0:0:30:0:	class=0x060401 card=0x01861028 chip=0x24488086 rev=0xd3 hdr=0x01
    vendor     = 'Intel Corporation'
    device     = '82801 Family (ICH2/3/4/5/6/7/8/9-M) Hub Interface to PCI Bridge'
    class      = bridge
    subclass   = PCI-PCI
none0 at pci0:0:30:2:	class=0x040100 card=0x01861028 chip=0x266e8086 rev=0x03 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'VIA AC97 codec incorporated into VT82C686A/B, VT8231, VT8233/A/C, VT8235, VT8237/R, VT8251 Southbrid (VIA Technologies Vinyl AC'97 Codec Combo Driver (W)'
    class      = multimedia
    subclass   = audio
none1 at pci0:0:30:3:	class=0x070300 card=0x542314f1 chip=0x266d8086 rev=0x03 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'hp/Compal - http://service.marasst.com/Compal/DL75/HDL75%20driver%20Ver%2002/Modem.zip (czc82809kr)'
    class      = simple comms
    subclass   = generic modem
isab0 at pci0:0:31:0:	class=0x060100 card=0x01861028 chip=0x26418086 rev=0x03 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'LPC Interface Bridge (ICH6-M) (82801FBM)'
    class      = bridge
    subclass   = PCI-ISA
atapci0 at pci0:0:31:2:	class=0x010180 card=0x01861028 chip=0x26538086 rev=0x03 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801FBM (ICH6M) SATA Controller'
    class      = mass storage
    subclass   = ATA
vgapci0 at pci0:1:0:0:	class=0x030000 card=0x20021028 chip=0x31501002 rev=0x00 hdr=0x00
    vendor     = 'ATI Technologies Inc. / Advanced Micro Devices, Inc.'
    device     = 'ATI MOBILITY /ATI RADEON X600 (M24)'
    class      = display
    subclass   = VGA
bge0 at pci0:2:0:0:	class=0x020000 card=0x01861028 chip=0x167714e4 rev=0x01 hdr=0x00
    vendor     = 'Broadcom Corporation'
    device     = 'NetXtreme Gigabit Ethernet PCI Express (BCM5750A1)'
    class      = network
    subclass   = ethernet
cbb0 at pci0:3:1:0:	class=0x060700 card=0x01861028 chip=0x8036104c rev=0x00 hdr=0x02
    vendor     = 'Texas Instruments (TI)'
    device     = 'Texas Instruments PCIxxx12 Cardbus Controller (PCI6515)'
    class      = bridge
    subclass   = PCI-CardBus
none2 at pci0:3:1:5:	class=0x078000 card=0x01861028 chip=0x8038104c rev=0x00 hdr=0x00
    vendor     = 'Texas Instruments (TI)'
    device     = 'Texas Instruments PCI GemCore SmartCard (FF001179)'
    class      = simple comms
iwi0 at pci0:3:3:0:	class=0x028000 card=0x27228086 chip=0x42208086 rev=0x05 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'driverIntel PRO/Wireless 2200BG (MPCI3B)'
    class      = network

>How-To-Repeat:

>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: