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Old 09-27-2006, 12:50 PM   #1
LQ Newbie
Registered: Jan 2006
Location: Mexico
Distribution: Debian testing
Posts: 8

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IRQ Conflict: Ethernet card(b44), Wireless card(ipw2200). Acer TravelMate 4101WLMi

I am having an irq conflict, my ethernet card and wireless card aren't wotking
(And strangely enough, when I start the XServer neither the keyboard does).

The lspci output:
0000:00:00.0 Host bridge: Intel Corp. Mobile Memory Controller Hub (rev 03)
0000:00:02.0 VGA compatible controller: Intel Corp. Mobile Graphics Controller (rev 03)
0000:00:02.1 Display controller: Intel Corp. Mobile Graphics Controller (rev 03)
0000:00:1c.0 PCI bridge: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 1 (rev 04)
0000:00:1c.1 PCI bridge: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 2 (rev 04)
0000:00:1c.2 PCI bridge: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 3 (rev 04)
0000:00:1d.0 USB Controller: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #1 (rev 04)
0000:00:1d.1 USB Controller: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #2 (rev 04)
0000:00:1d.2 USB Controller: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #3 (rev 04)
0000:00:1d.3 USB Controller: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #4 (rev 04)
0000:00:1d.7 USB Controller: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB2 EHCI Controller (rev 04)
0000:00:1e.0 PCI bridge: Intel Corp. 82801 PCI Bridge (rev d4)
0000:00:1e.2 Multimedia audio controller: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) AC'97 Audio Controller (rev 04)
0000:00:1e.3 Modem: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) AC'97 Modem Controller (rev 04)
0000:00:1f.0 ISA bridge: Intel Corp. 82801FBM (ICH6M) LPC Interface Bridge (rev 04)
0000:00:1f.1 IDE interface: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) IDE Controller (rev 04)
0000:00:1f.3 SMBus: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) SMBus Controller (rev 04)
0000:06:01.0 CardBus bridge: Texas Instruments: Unknown device 8031
0000:06:01.2 FireWire (IEEE 1394): Texas Instruments: Unknown device 8032
0000:06:01.3 Unknown mass storage controller: Texas Instruments: Unknown device 8033
0000:06:03.0 Network controller: Intel Corp. PRO/Wireless 2200BG (rev 05)
0000:06:08.0 Ethernet controller: Broadcom Corporation BCM4401 100Base-T (rev 02)
the exit from /pci/interrupts
  0:      64461          XT-PIC  timer
  1:        188          XT-PIC  i8042
  2:          0          XT-PIC  cascade
  8:          4          XT-PIC  rtc
 10:     100000          XT-PIC  uhci_hcd:usb5, Intel ICH6
 11:         33          XT-PIC  ehci_hcd:usb1, uhci_hcd:usb2, uhci_hcd:usb3, uhci_hcd:usb4, Intel ICH6 Modem, ipw2200
 12:        122          XT-PIC  i8042
 14:       1437          XT-PIC  ide0
NMI:          0 
LOC:      64392 
ERR:          0
MIS:          0
the exit from dmesg

BUG: unable to handle kernel paging request at virtual address 31687465
 printing eip:
*pde = 00000000
Oops: 0000 [#1]
Modules linked in: ipw2200 ieee80211 ieee80211_crypt
CPU:    0
EIP:    0060:[<c0178cbc>]    Not tainted VLI
EFLAGS: 00010286   (2.6.18 #1) 
EIP is at create_dir+0x25/0x19b
eax: 00000000   ebx: 31687465   ecx: ffffffff   edx: de678bbc
esi: de9ec000   edi: 31687465   ebp: ddc51e70   esp: ddc51e48
ds: 007b   es: 007b   ss: 0068
Process modprobe (pid: 2291, ti=ddc50000 task=c1502540 task.ti=ddc50000)
Stack: de678bbc de9ec1d0 31687465 de9ec000 00000000 c03da1e0 c0178e40 ddc51e70 
       00000002 c0179fd2 00000004 00000002 de9ec1c8 c0248966 de9ec1c8 de9ec1d0 
       de9ec249 c0248c4d 00000000 de580aa0 00000000 de9ec000 de9ec004 019369c2 
Call Trace:
 [<c0178e40>] sysfs_create_subdir+0xe/0x11
 [<c0179fd2>] sysfs_create_group+0x24/0x76
 [<c0248966>] class_device_add_groups+0x23/0x4f
 [<c0248c4d>] class_device_add+0x1b1/0x293
 [<c02d1c44>] register_netdevice+0x1ce/0x288
 [<c0179f8c>] create_files+0x22/0x44
 [<c02d1d58>] register_netdev+0x5a/0x66
 [<e005fde5>] ipw_pci_probe+0x3a7/0x446 [ipw2200]
 [<c0247f31>] __driver_attach+0x0/0x59
 [<c01e0468>] pci_call_probe+0xa/0xc
 [<c01e0498>] __pci_device_probe+0x2e/0x3f
 [<c01e04c7>] pci_device_probe+0x1e/0x30
 [<c0247e96>] driver_probe_device+0x44/0x8d
 [<c0247f67>] __driver_attach+0x36/0x59
 [<c0247678>] bus_for_each_dev+0x35/0x59
 [<c0247f9b>] driver_attach+0x11/0x13
 [<c0247f31>] __driver_attach+0x0/0x59
 [<c0247a63>] bus_add_driver+0x52/0x81
 [<c01e064c>] __pci_register_driver+0x37/0x47
 [<c0116737>] printk+0xe/0x11
 [<e0027015>] ipw_init+0x15/0x68 [ipw2200]
 [<e0027026>] ipw_init+0x26/0x68 [ipw2200]
 [<c012dd5e>] sys_init_module+0x8b/0x18e
 [<c0102607>] syscall_call+0x7/0xb
Code: ab 3b c0 31 c0 c3 55 57 56 53 53 53 89 cb 8b 6c 24 1c 89 14 24 89 df 89 44 24 04 8b 42 08 83 c0 70 e8 dc 43 1a 00 31 c0 83 c9 ff <f2> ae f7 d1 49 8b 14 24 89 d8 e8 24 f3 fd ff 89 45 00 3d 00 f0 
EIP: [<c0178cbc>] create_dir+0x25/0x19b SS:ESP 0068:ddc51e48
 <3>irq 10: nobody cared (try booting with the "irqpoll" option)
 [<c01321ef>] __report_bad_irq+0x2b/0x6b
 [<c01322b6>] note_interrupt+0x6b/0x99
 [<c0131b08>] __do_IRQ+0x9a/0xe2
 [<c010457b>] do_IRQ+0x43/0x50
 [<c0102f8e>] common_interrupt+0x1a/0x20
 [<c013007b>] alloc_data_pages+0xa5/0xc6
 [<c011a473>] __do_softirq+0x2c/0x73
 [<c011a4dc>] do_softirq+0x22/0x26
 [<c011a509>] irq_exit+0x29/0x34
 [<c0104580>] do_IRQ+0x48/0x50
 [<c0102f8e>] common_interrupt+0x1a/0x20
[<c0277271>] (usb_hcd_irq+0x0/0x4e)
[<c02b856e>] (snd_intel8x0_interrupt+0x0/0x1da)
Disabling IRQ #10
I am using Debian 3.1 r2
I have already tried booting with the irqpoll option and my Box just didn't boot completely; it just hanged on some lines that looked like the ones above.
As you may have noticed, that kernel (2.6.8) has the ipw2200 module (the one from Intel, not the kernel-included one). When I uninstall it, the problem is gone (but obviously, no wireless card).
I have already googled and all I found is to "manually set the irqs with the BIOS"... but my laptop's BIOS doesn't provide that feature.
Is there any way I can set the irqs inside Linux?
Old 09-27-2006, 03:18 PM   #2
Senior Member
Registered: Dec 2005
Location: Indiana
Distribution: RHEL/CentOS/SL 5 i386 and x86_64 pata for IDE in use
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You might want to use a newer kernel (2.6.15 or better) and use acpi intead of apm. Acer laptops are known for having a'buggy' BIOS, and many wre not supported well until the 2.6.15 kernel was released. You may want to update the BIOS also;

and/or use a custom DSDT;
Old 09-28-2006, 01:26 AM   #3
LQ Newbie
Registered: Jan 2006
Location: Mexico
Distribution: Debian testing
Posts: 8

Original Poster
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Oh, right... Thanks man, I totally forgot that BIOS-crap thing with the Acer laptops. I think I will check out the las two suggestions you wrote (by the way, I messed up with the kernel number, it was 2.6.18 ...).
Old 09-29-2006, 11:20 AM   #4
Registered: Oct 2005
Distribution: Slackware 11
Posts: 45

Rep: Reputation: 15
I am currently using an Acer Travelmate 4102WLMi (with the onboard graphics ie. 915GM option). The IRQ problem was fixed by passing pci=assign-bussess as a parameter during boot.


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