[Bugme-new] [Bug 12456] New: iwlagn / Intel Pro Wireless 5100 AGN / oops on module load

Thu Jan 15 14:50:39 PST 2009

http://bugzilla.kernel.org/show_bug.cgi?id=12456

           Summary: iwlagn / Intel Pro Wireless 5100 AGN / oops on module
                    load
           Product: Drivers
           Version: 2.5
     KernelVersion: 2.6.29-rc1-wl
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: network-wireless
        AssignedTo: drivers_network-wireless at kernel-bugs.osdl.org
        ReportedBy: jo at wwsnet.net
                CC: jo at wwsnet.net

Latest working kernel version: 2.6.28
Earliest failing kernel version: 2.6.29-rc1 (or compat-wireless-2.6 from
2009/01/12)
Distribution: Ubuntu 8.10
Hardware Environment:
Lenovo Thinkpad T400 Laptop

Wireless Card:
03:00.0 Network controller: Intel Corporation PRO/Wireless 5100 AGN [Shiloh]
Network Connection
        Subsystem: Intel Corporation Device 1211
        Flags: bus master, fast devsel, latency 0, IRQ 2297
        Memory at f4300000 (64-bit, non-prefetchable) [size=8K]
        Capabilities: [c8] Power Management version 3
        Capabilities: [d0] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0
Enable+
        Capabilities: [e0] Express Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting <?>
        Capabilities: [140] Device Serial Number 34-f1-96-ff-ff-5d-21-00
        Kernel driver in use: iwlagn
        Kernel modules: iwlagn

Software Environment:
Standard Ubuntu 8.09 install

Problem Description:
When trying to test a newer iwlagn driver to find out whether IBSS mode is
supported, I get the following oops when trying to load the driver (modprobe
iwlagn). No wlan0 device is present afterwards.

This is the trace:
[   14.072188] iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux,
1.3.27ks
[   14.072196] iwlagn: Copyright(c) 2003-2009 Intel Corporation
[   14.072337] iwlagn 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[   14.072378] iwlagn 0000:03:00.0: setting latency timer to 64
[   14.072711] iwlagn 0000:03:00.0: Detected Intel Wireless WiFi Link 5100AGN
REV=0x54
[   14.093040] iwlagn 0000:03:00.0: Tunable channels: 13 802.11bg, 24 802.11a
channels
[   14.098403] iwlagn 0000:03:00.0: PCI INT A disabled
[   14.098426] BUG: unable to handle kernel NULL pointer dereference at
00000004
[   14.098569] IP: [<f7d6d12d>] wiphy_update_regulatory+0x8d/0x340 [cfg80211]
[   14.098677] *pde = 00000000 
[   14.098683] Oops: 0000 [#1] SMP 
[   14.098815] last sysfs file: /sys/devices/virtual/input/input0/modalias
[   14.098870] Modules linked in: iwlagn(+) iwlcore snd_rawmidi
snd_seq_midi_event sr_mod cdrom mac80211 thinkpad_acpi rfkill psmouse snd_seq
ac evdev nvram sdhci_pci sdhci pcspkr battery serio_raw snd_timer
snd_seq_device cfg80211 video output mmc_core sg ohci1394 yenta_socket
rsrc_nonstatic ricoh_mmc ieee1394 led_class pcmcia_core wmi snd iTCO_wdt button
pata_acpi ata_generic ehci_hcd uhci_hcd soundcore iTCO_vendor_support intel_agp
snd_page_alloc agpgart usbcore e1000e shpchp pci_hotplug ext3 jbd mbcache
sd_mod crc_t10dif dm_mirror dm_region_hash dm_log dm_snapshot dm_mod thermal
processor fan fuse ata_piix libata scsi_mod
[   14.101881] 
[   14.101935] Pid: 2588, comm: modprobe Not tainted (2.6.29-rc1-wl #2) 2767B44
[   14.101935] EIP: 0060:[<f7d6d12d>] EFLAGS: 00010202 CPU: 1
[   14.101935] EIP is at wiphy_update_regulatory+0x8d/0x340 [cfg80211]
[   14.101935] EAX: 00000000 EBX: f7d71fe4 ECX: 0024cde0 EDX: 0000096c
[   14.101935] ESI: f5f00000 EDI: 00000002 EBP: f5d19d78 ESP: f5d19d04
[   14.101935]  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[   14.101935] Process modprobe (pid: 2588, ti=f5d18000 task=f5d73140
task.ti=f5d18000)
[   14.101935] Stack:
[   14.101935]  00000001 c05cafab f5d19d80 00000286 f5d19d42 c043ba83 0000000e
00018063
[   14.101935]  00000004 f5d19d42 00000001 f5f00040 00000000 00000000 f5f000cc
205b0cf8
[   14.101935]  34312020 3839302e f7d71fe4 f670c800 f5f01260 f5d19d78 00000020
0024cde0
[   14.101935] Call Trace:
[   14.101935]  [<f7d6c36d>] ? wiphy_register+0xdd/0x1f0 [cfg80211]
[   14.101935]  [<c0387085>] ? printk+0x18/0x1b
[   14.101935]  [<f81b81eb>] ? ieee80211_register_hw+0x4b/0x380 [mac80211]
[   14.101935]  [<f81338a6>] ? iwl_setup_mac+0x86/0xd0 [iwlcore]
[   14.101935]  [<c0267b0d>] ? pci_disable_device+0x5d/0x70
[   14.101935]  [<f8433650>] ? iwl_pci_probe+0x590/0x6a0 [iwlagn]
[   14.101935]  [<c0269fce>] ? local_pci_probe+0xe/0x10
[   14.101935]  [<c026ac00>] ? pci_device_probe+0x60/0x80
[   14.101935]  [<c02ccb4f>] ? driver_probe_device+0x7f/0x1a0
[   14.101935]  [<c02cccf9>] ? __driver_attach+0x89/0x90
[   14.101935]  [<c02cbe4f>] ? bus_add_driver+0x1af/0x230
[   14.101935]  [<c026ab40>] ? pci_device_remove+0x0/0x40
[   14.101935]  [<c02cce99>] ? driver_register+0x69/0x140
[   14.101935]  [<f814e000>] ? iwl_init+0x0/0x71 [iwlagn]
[   14.101935]  [<c026ae60>] ? __pci_register_driver+0x40/0x80
[   14.101935]  [<f814e000>] ? iwl_init+0x0/0x71 [iwlagn]
[   14.101935]  [<f814e03e>] ? iwl_init+0x3e/0x71 [iwlagn]
[   14.101935]  [<c0180826>] ? tracepoint_update_probe_range+0x76/0xa0
[   14.101935]  [<c010111b>] ? _stext+0x2b/0x160
[   14.101935]  [<c018087f>] ? tracepoint_module_notify+0x2f/0x40
[   14.101935]  [<c038c58d>] ? notifier_call_chain+0x2d/0x70
[   14.101935]  [<c014d3ed>] ? __blocking_notifier_call_chain+0x4d/0x60
[   14.101935]  [<c015e3d8>] ? sys_init_module+0x88/0x1c0
[   14.101935]  [<c010366b>] ? sysenter_do_call+0x12/0x2f
[   14.101935] Code: 83 8b 1d 10 77 d7 f7 89 45 d8 8b 40 18 8b 55 d8 89 45 e4
a1 08 77 d7 f7 0f b7 52 04 89 5d d4 69 ca e8 03 00 00 89 55 ec 89 4d e8 <8b> 40
04 83 f8 04 89 45 c8 0f 84 34 02 00 00 8b 55 b8 8b 42 1c 
[   14.101935] EIP: [<f7d6d12d>] wiphy_update_regulatory+0x8d/0x340 [cfg80211]
SS:ESP 0068:f5d19d04
[   14.109956] ---[ end trace bc61f396bcb2c8f4 ]---

Steps to reproduce:
git clone git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-2.6.git
iwlwifi
cd iwlwifi
make-kpkg --initrd --rootcmd fakeroot kernel_image
sudo dpkg -i ../linux-image-2.6.29-rc1-wl_2.6.29-rc1-wl-10.00.Custom_i386.deb
sudo reboot

Used mac80211 related arguments are:
options cfg80211 ieee80211_regdom=EU

-- 
Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug, or are watching someone who is.