Hello,

First of all, please give me an advice, and if u don't have time, don't read the output from dmesg, just pass it (it's in italics), but please tell me what to do with the next problem.
I have installed a 2.4.27 kernel which works just fine. I am trying to install a 2.6.18 kernel but I can't get it to work because it keeps telling me that IRQ 16.. nobody cares, from lspci I can see that I have on IRQ 16 the agp card and also 2 usbs as here:

lspci -v | grep "IRQ 16" -A4 -B4
Prefetchable memory behind bridge: dfe00000-efdfffff

0000:00:1d.0 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #1 (rev 02) (prog-if 00 [UHCI])
Subsystem: Micro-Star International Co., Ltd. 865PE Neo2 (MS-6728)
Flags: bus master, medium devsel, latency 0, IRQ 16
I/O ports at cc00 [size=32]

0000:00:1d.1 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #2 (rev 02) (prog-if 00 [UHCI])
Subsystem: Micro-Star International Co., Ltd. 865PE Neo2 (MS-6728)
--
I/O ports at d400 [size=32]

0000:00:1d.3 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #4 (rev 02) (prog-if 00 [UHCI])
Subsystem: Micro-Star International Co., Ltd. 865PE Neo2 (MS-6728)
Flags: bus master, medium devsel, latency 0, IRQ 16
I/O ports at d800 [size=32]

0000:00:1d.7 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB2 EHCI Controller (rev 02) (prog-if 20 [EHCI])
Subsystem: Micro-Star International Co., Ltd. 865PE Neo2 (MS-6728)
--
Flags: medium devsel, IRQ 17
I/O ports at 0c00 [size=32]

0000:01:00.0 VGA compatible controller: nVidia Corporation NV28 [GeForce4 Ti 4200 AGP 8x] (rev a1) (prog-if 00 [VGA])
Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 16
Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
Memory at e0000000 (32-bit, prefetchable) [size=128M]
Expansion ROM at fe9e0000 [disabled] [size=128K]
Capabilities: <available only to root>

So even with this (u could say) "conflict" on my 2.4.27 kernel it's working just fine, but when I compile my 2.6.18 (and even 19) kernel it just don't work.

Also on the 2.4.27 (the working one) kernel I have the following output from dmesg:

820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000003fff0000 (usable)
BIOS-e820: 000000003fff0000 - 000000003fff8000 (ACPI data)
BIOS-e820: 000000003fff8000 - 0000000040000000 (ACPI NVS)
BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved)
BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
BIOS-e820: 00000000fff00000 - 0000000100000000 (reserved)
Warning only 896MB will be used.
Use a HIGHMEM enabled kernel.
896MB LOWMEM available.
found SMP MP-table at 000fba30
hm, page 000fb000 reserved twice.
hm, page 000fc000 reserved twice.
hm, page 000f5000 reserved twice.
hm, page 000f6000 reserved twice.
On node 0 totalpages: 229376
zone(0): 4096 pages.
zone(1): 225280 pages.
zone(2): 0 pages.
ACPI: RSDP (v000 AMI ) @ 0x000f9e70
ACPI: RSDT (v001 AMIINT INTEL865 0x00000010 MSFT 0x00000097) @ 0x3fff0000
ACPI: FADT (v001 AMIINT INTEL865 0x00000011 MSFT 0x00000097) @ 0x3fff0030
ACPI: MADT (v001 AMIINT INTEL865 0x00000009 MSFT 0x00000097) @ 0x3fff00c0
ACPI: DSDT (v001 INTEL I865G 0x00001000 MSFT 0x0100000d) @ 0x00000000
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
Processor #0 Pentium 4(tm) XEON(tm) APIC version 20
ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
Processor #1 Pentium 4(tm) XEON(tm) APIC version 20
Using ACPI for processor (LAPIC) configuration information
Intel MultiProcessor Specification v1.4
Virtual Wire compatibility mode.
OEM ID: INTEL Product ID: I865G/GE/PE APIC at: 0xFEE00000
I/O APIC #2 Version 32 at 0xFEC00000.
Enabling APIC mode: Flat. Using 1 I/O APICs
Processors: 2
Kernel command line: root=/dev/hdb1 ro
Initializing CPU#0
Detected 2624.573 MHz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 5242.88 BogoMIPS
Memory: 901612k/917504k available (1069k kernel code, 15504k reserved, 459k data, 96k init, 0k highmem)
Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode cache hash table entries: 65536 (order: 7, 524288 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 65536 (order: 6, 262144 bytes)
Page-cache hash table entries: 262144 (order: 8, 1048576 bytes)
CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 512K
CPU: After generic, caps: bfebfbff 00000000 00000000 00000000
CPU: Common caps: bfebfbff 00000000 00000000 00000000
CPU: Intel(R) Pentium(R) 4 CPU 2.60GHz stepping 09
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
Checking for popad bug... OK.
POSIX conformance testing by UNIFIX
enabled ExtINT on CPU#0
ESR value before enabling vector: 00000000
ESR value after enabling vector: 00000000
ENABLING IO-APIC IRQs
Setting 2 in the phys_id_present_map
...changing IO-APIC physical APIC ID to 2 ... ok.
init IO_APIC IRQs
IO-APIC (apicid-pin) 2-0, 2-5, 2-10, 2-11, 2-12, 2-14, 2-15, 2-21, 2-22 not connected.
..TIMER: vector=0x31 pin1=2 pin2=0
number of MP IRQ sources: 26.
number of IO-APIC #2 registers: 24.
testing the IO APIC.......................

IO APIC #2......
.... register #00: 02000000
....... : physical APIC id: 02
....... : Delivery Type: 0
....... : LTS : 0
.... register #01: 00178020
....... : max redirection entries: 0017
....... : PRQ implemented: 1
....... : IO APIC version: 0020
.... IRQ redirection table:
NR Log Phy Mask Trig IRR Pol Stat Dest Deli Vect:
00 000 00 1 0 0 0 0 0 0 00
01 001 01 0 0 0 0 0 1 1 39
02 001 01 0 0 0 0 0 1 1 31
03 001 01 0 0 0 0 0 1 1 41
04 001 01 0 0 0 0 0 1 1 49
05 000 00 1 0 0 0 0 0 0 00
06 001 01 0 0 0 0 0 1 1 51
07 001 01 0 0 0 0 0 1 1 59
08 001 01 0 0 0 0 0 1 1 61
09 001 01 0 0 0 0 0 1 1 69
0a 000 00 1 0 0 0 0 0 0 00
0b 000 00 1 0 0 0 0 0 0 00
0c 000 00 1 0 0 0 0 0 0 00
0d 001 01 0 0 0 0 0 1 1 71
0e 000 00 1 0 0 0 0 0 0 00
0f 000 00 1 0 0 0 0 0 0 00
10 001 01 1 1 0 1 0 1 1 79
11 001 01 1 1 0 1 0 1 1 81
12 001 01 1 1 0 1 0 1 1 89
13 001 01 1 1 0 1 0 1 1 91
14 001 01 1 1 0 1 0 1 1 99
15 000 00 1 0 0 0 0 0 0 00
16 000 00 1 0 0 0 0 0 0 00
17 001 01 1 1 0 1 0 1 1 A1
IRQ to pin mappings:
IRQ0 -> 0:2
IRQ1 -> 0:1
IRQ3 -> 0:3
IRQ4 -> 0:4
IRQ6 -> 0:6
IRQ7 -> 0:7
IRQ8 -> 0:8
IRQ9 -> 0:9
IRQ13 -> 0:13
IRQ16 -> 0:16
IRQ17 -> 0:17
IRQ18 -> 0:18
IRQ19 -> 0:19
IRQ20 -> 0:20
IRQ23 -> 0:23
.................................... done.
Using local APIC timer interrupts.
calibrating APIC timer ...
..... CPU clock speed is 2624.5380 MHz.
..... host bus clock speed is 201.8873 MHz.
cpu: 0, clocks: 2018873, slice: 1009436
CPU0<T0:2018864,T1:1009424,D:4,S:1009436,C:2018873>
ACPI: Subsystem revision 20040326
ACPI: Interpreter disabled.
PCI: PCI BIOS revision 2.10 entry at 0xfdb81, last bus=2
PCI: Using configuration type 1
PCI: Probing PCI hardware
PCI: ACPI tables contain no PCI IRQ routing entries
PCI: Probing PCI hardware (bus 00)
Transparent bridge - Intel Corp. 82801BA/CA/DB/EB PCI Bridge
PCI: Using IRQ router PIIX/ICH [8086/24d0] at 00:1f.0
PCI->APIC IRQ transform: (B0,I29,P0) -> 16
PCI->APIC IRQ transform: (B0,I29,P1) -> 19
PCI->APIC IRQ transform: (B0,I29,P2) -> 18
PCI->APIC IRQ transform: (B0,I29,P0) -> 16
PCI->APIC IRQ transform: (B0,I29,P3) -> 23
PCI->APIC IRQ transform: (B0,I31,P0) -> 18
PCI->APIC IRQ transform: (B0,I31,P0) -> 18
PCI->APIC IRQ transform: (B0,I31,P1) -> 17
PCI->APIC IRQ transform: (B1,I0,P0) -> 16
PCI->APIC IRQ transform: (B2,I1,P0) -> 17
PCI->APIC IRQ transform: (B2,I2,P0) -> 18
PCI->APIC IRQ transform: (B2,I2,P0) -> 18
PCI->APIC IRQ transform: (B2,I3,P0) -> 19
PCI->APIC IRQ transform: (B2,I5,P0) -> 17
PCI->APIC IRQ transform: (B2,I8,P0) -> 20
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
VFS: Disk quotas vdquot_6.5.1
devfs: v1.12c (20020818) Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x0
Detected PS/2 Mouse Port.
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with HUB-6 MANY_PORTS MULTIPORT SHARE_IRQ SERIAL_PCI enabled
ttyS00 at 0x03f8 (irq = 4) is a 16550A
ttyS01 at 0x02f8 (irq = 3) is a 16550A
COMX: driver version 0.85 (C) 1995-1999 ITConsult-Pro Co. <info@itc.hu>
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
Initializing Cryptographic API
NET4: Linux TCP/IP 1.0 for NET4.0
IP: routing cache hash table of 8192 buckets, 64Kbytes
TCP: Hash tables configured (established 262144 bind 65536)
Linux IP multicast router 0.06 plus PIM-SM
RAMDISK: cramfs filesystem found at block 0
RAMDISK: Loading 3692 blocks [1 disk] into ram disk... done.
Freeing initrd memory: 3692k freed
VFS: Mounted root (cramfs filesystem).
Freeing unused kernel memory: 96k freed
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ide: late registration of driver.
ICH5: IDE controller at PCI slot 00:1f.1
PCI: Enabling device 00:1f.1 (0005 -> 0007)
ICH5: chipset revision 2
ICH5: 100% native mode on irq 18
ide0: BM-DMA at 0xb800-0xb807, BIOS settings: hdaMA, hdbMA
ide1: BM-DMA at 0xb808-0xb80f, BIOS settings: hdcMA, hddMA
ICH5-SATA: IDE controller at PCI slot 00:1f.2
ICH5-SATA: chipset revision 2
ICH5-SATA: 100% native mode on irq 18
ide2: BM-DMA at 0xdc00-0xdc07, BIOS settings: hdeMA, hdfio
ide3: BM-DMA at 0xdc08-0xdc0f, BIOS settings: hdgio, hdhio
hda: MAXTOR 6L040J2, ATA DISK drive
hdb: Maxtor 52049U4, ATA DISK drive
blk: queue f8825b60, I/O limit 4095Mb (mask 0xffffffff)
blk: queue f8825c9c, I/O limit 4095Mb (mask 0xffffffff)
hdc: HL-DT-ST DVDRAM GSA-H10N, ATAPI CD/DVD-ROM drive
hdd: SONY CD-RW CRX230E, ATAPI CD/DVD-ROM drive
hde: Maxtor 6Y160M0, ATA DISK drive
hdf: probing with STATUS(0x00) instead of ALTSTATUS(0x50)
hdf: probing with STATUS(0x00) instead of ALTSTATUS(0x50)
blk: queue f8826408, I/O limit 4095Mb (mask 0xffffffff)
ide0 at 0xc800-0xc807,0xc402 on irq 18
ide1 at 0xc000-0xc007,0xbc02 on irq 18
ide2 at 0xec00-0xec07,0xe802 on irq 18
hda: attached ide-disk driver.
hda: 78177792 sectors (40027 MB) w/1818KiB Cache, CHS=77557/16/63, UDMA(100)
hdb: attached ide-disk driver.
hdb: 40020624 sectors (20491 MB) w/2048KiB Cache, CHS=39703/16/63, UDMA(66)
hde: attached ide-disk driver.
hde: 320173056 sectors (163929 MB) w/7936KiB Cache, CHS=19929/255/63, UDMA(33)
Partition check:
/dev/ide/host0/bus0/target0/lun0: [PTBL] [4866/255/63] p1 p2 < p5 p6 >
/dev/ide/host0/bus0/target1/lun0: [PTBL] [2491/255/63] p1 p2 < p5 p6 >
/dev/ide/host2/bus0/target0/lun0: p1 < p5 p6 >
Journalled Block Device driver loaded
EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
kjournald starting. Commit interval 5 seconds
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
Adding Swap: 979924k swap-space (priority -1)
EXT3 FS 2.4-0.9.19, 19 August 2002 on ide0(3,65), internal journal
Real Time Clock Driver v1.10f
hdc: attached ide-cdrom driver.
hdc: ATAPI 126X DVD-ROM DVD-R-RAM CD-R/RW drive, 2048kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.12
hdd: attached ide-cdrom driver.
hdd: ATAPI 52X CD-ROM CD-R/RW drive, 2048kB Cache, UDMA(33)
device-mapper: 4.1.1-ioctl (2004-04-07) initialised: dm-devel@redhat.com
LVM version 1.0.8(17/11/2003) module loaded
cdrom: open failed.
kjournald starting. Commit interval 5 seconds
EXT3 FS 2.4-0.9.19, 19 August 2002 on ide0(3,70), internal journal
EXT3-fs: mounted filesystem with ordered data mode.
NTFS driver v1.1.22 [Flags: R/O MODULE]
NTFS: Warning! NTFS volume version is Win2k+: Mounting read-only
NTFS: Warning! NTFS volume version is Win2k+: Mounting read-only
NTFS: Warning! NTFS volume version is Win2k+: Mounting read-only
8139too Fast Ethernet driver 0.9.26
eth0: RealTek RTL8139 at 0xa400, 00:80:1e:14:67:07, IRQ 17
eth0: Identified 8139 chip type 'RTL-8100B/8139D'
Intel(R) PRO/100 Network Driver - version 2.3.43-k1
Copyright (c) 2004 Intel Corporation

e100: selftest OK.
e100: eth1: Intel(R) PRO/100 Network Connection
Hardware receive checksums enabled

Creative EMU10K1 PCI Audio Driver, version 0.20, 09:49:55 Aug 17 2005
emu10k1: EMU10K1 rev 4 model 0x20 found, IO at 0xa800-0xa81f, IRQ 17
ac97_codec: AC97 codec, id: TRA3 (TriTech TR28023)
usb.c: registered new driver usbdevfs
usb.c: registered new driver hub
usb-uhci.c: $Revision: 1.275 $ time 09:50:48 Aug 17 2005
usb-uhci.c: High bandwidth mode enabled
PCI: Setting latency timer of device 00:1d.0 to 64
usb-uhci.c: USB UHCI at I/O 0xcc00, IRQ 16
usb-uhci.c: Detected 2 ports
usb.c: new USB bus registered, assigned bus number 1
hub.c: USB hub found
hub.c: 2 ports detected
PCI: Setting latency timer of device 00:1d.1 to 64
usb-uhci.c: USB UHCI at I/O 0xd000, IRQ 19
usb-uhci.c: Detected 2 ports
usb.c: new USB bus registered, assigned bus number 2
hub.c: USB hub found
hub.c: 2 ports detected
PCI: Setting latency timer of device 00:1d.2 to 64
usb-uhci.c: USB UHCI at I/O 0xd400, IRQ 18
usb-uhci.c: Detected 2 ports
usb.c: new USB bus registered, assigned bus number 3
hub.c: USB hub found
hub.c: 2 ports detected
PCI: Setting latency timer of device 00:1d.3 to 64
usb-uhci.c: USB UHCI at I/O 0xd800, IRQ 16
usb-uhci.c: Detected 2 ports
usb.c: new USB bus registered, assigned bus number 4
hub.c: USB hub found
hub.c: 2 ports detected
usb-uhci.c: v1.275:USB Universal Host Controller Interface driver
hub.c: new USB device 00:1d.0-1, assigned address 2
PCI: Setting latency timer of device 00:1d.7 to 64
ehci_hcd 00:1d.7: Intel Corp. 82801EB USB2
ehci_hcd 00:1d.7: irq 23, pci mem f896f800
usb.c: new USB bus registered, assigned bus number 5
ehci_hcd 00:1d.7: enabled 64bit PCI DMA
PCI: cache line size of 128 is not supported by device 00:1d.7
ehci_hcd 00:1d.7: USB 2.0 enabled, EHCI 1.00, driver 2003-Dec-29/2.4
usb-uhci.c: interrupt, status 2, frame# 637
hub.c: USB hub found
hub.c: 8 ports detected
usb.c: USB device not responding, giving up (error=-84)
8139cp: 10/100 PCI Ethernet driver v1.2 (Mar 22, 2004)
btaudio: driver version 0.7 loaded [digital+analog]
btaudio: Bt878 (rev 17) at 02:02.1, irq: 18, latency: 32, mmio: 0xefefe000
btaudio: using card config "default"
btaudio: registered device dsp2 [digital]
btaudio: registered device dsp3 [analog]
btaudio: registered device mixer1
Linux video capture interface: v1.00
i2c-core.o: i2c core module version 2.6.1 (20010830)
i2c-algo-bit.o: i2c bit algorithm module
bttv: driver version 0.7.108 loaded
bttv: using 4 buffers with 2080k (8320k total) for capture
bttv: Bt8xx card found (0).
bttv0: Bt878 (rev 17) at 02:02.0, irq: 18, latency: 32, mmio: 0xefeff000
bttv0: using: *** UNKNOWN/GENERIC *** [card=0,autodetected]
i2c-core.o: adapter bt848 #0 registered as adapter 0.
bttv: readee error
bttv0: using tuner=-1
bttv0: i2c: checking for MSP34xx @ 0x80... not found
bttv0: i2c: checking for TDA9875 @ 0xb0... not found
bttv0: i2c: checking for TDA7432 @ 0x8a... not found
bttv0: registered device video0
bttv0: registered device vbi0
hub.c: new USB device 00:1d.0-1, assigned address 3
usb.c: USB device 3 (vend/prod 0x1532/0x1) is not claimed by any active driver.
i2c-core.o: driver i2c TV tuner driver registered.
tuner: chip found @ 0xc0
i2c-core.o: client [(tuner unset)] registered to adapter [bt848 #0](pos. 0).
gameport0: Emu10k1 Gameport at 0xac00 size 8 speed 1125 kHz
hub.c: new USB device 00:1d.1-1, assigned address 2
usb.c: USB device 2 (vend/prod 0x79d/0x422) is not claimed by any active driver.
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
shpchp: acpi_shpchprm:get_device PCI ROOT HID fail=0x1001
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
pciehp: acpi_pciehprm:get_device PCI ROOT HID fail=0x1001
usb.c: registered new driver hiddev
usb.c: registered new driver hid
usb-uhci.c: interrupt, status 2, frame# 221
i810_rng: RNG not detected
hw_random: RNG not detected
uhci.c: USB Universal Host Controller Interface driver v1.1
usb_control/bulk_msg: timeout
input: USB HID v1.00 Joystick [USB Game Device] on usb2:2.0
input: USB HID v1.10 Mouse [Razer Razer 1600dpi Mouse] on usb1:3.0
hid-core.c: v1.8.1 Andreas Gal, Vojtech Pavlik <vojtech@suse.cz>
hid-core.c: USB HID support drivers
mice: PS/2 mouse device common for all mice
e100: eth1 NIC Link is Up 100 Mbps Full duplex
apm: BIOS version 1.2 Flags 0x03 (Driver version 1.16)



But with the 2.6.X kernel it's not working ( And I cannot give u a dmesg because it doesn't go anyfurther than "IRQ 16 DISABLED, NOBODY CARED, ETC..."


I have a p4-2.6G, Intel Chipset, Sata 150 hard-disk, 4 usb, nvidia GeForce4Ti 4200 (on agp)
I have configured the UHCI and EHCI for USB.

Any help pls? Thx.