[Bug 48642] system half-hangs after wifi scan

booyo marcin.bujak at openetworks.pl
Tue Jun 6 09:15:37 UTC 2006 

Public bug reported:

Binary package hint: kernel-image-2.6.15-23-386-di

some times, not allways system half-hangs after wifi network scan
half-hangs - its not possible to run sudo, ifconfig, iwconfig commands, network is down/hang, KDE is working normally (all not network related software)

part of dmesg:
4295330.743000] Unable to handle kernel paging request at virtual address 0000ffff
[4295330.743000]  printing eip:
[4295330.744000] f8aeb183
[4295330.744000] *pde = 00000000
[4295330.744000] Oops: 0000 [#1]
[4295330.744000] PREEMPT
[4295330.744000] Modules linked in: i915 drm ipv6 binfmt_misc rfcomm l2cap bluetooth ppdev cpufreq_userspace cpufreq_stats freq_table cpufreq_powersave cpufreq_ondemand cpufreq_conservative video tc1100_wmi sony_acpi pcc_acpi hotkey dev_acpi container button acpi_sbs battery ac i2c_acpi_ec i2c_core dm_mod af_packet md_mod parport_pc lp parport pcmcia yenta_socket rsrc_nonstatic pcmcia_core joydev 8139cp ath_pci ath_rate_sample 8139too mii wlan ath_hal psmouse serio_raw snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm_oss snd_mixer_oss snd_pcm snd_timer rtc snd soundcore snd_page_alloc intel_agp agpgart tsdev evdev usbhid ext3 jbd ide_generic ehci_hcd uhci_hcd usbcore ide_cd cdrom ide_disk piix generic thermal processor fan capability commoncap vga16fb vgastate fbcon tileblit font bitblit softcursor
[4295330.744000] CPU:    0
[4295330.744000] EIP:    0060:[<f8aeb183>]    Tainted: P      VLI
[4295330.744000] EFLAGS: 00210246   (2.6.15-23-386)
[4295330.744000] EIP is at read_ap_result+0x1c3/0x55b [wlan]
[4295330.744000] eax: 0000ffff   ebx: e808de94   ecx: 00000000   edx: f2ec6000
[4295330.744000] esi: f2ec60f5   edi: f09c101c   ebp: f09c101c   esp: e808dd70
[4295330.744000] ds: 007b   es: 007b   ss: 0068
[4295330.744000] Process iwlist (pid: 5697, threadinfo=e808c000 task=e801f550)
[4295330.744000] Stack: c18f0e38 f8934ba9 e34c92c0 e34c92c0 c18f0e38 f89307b6 f283c6b0 f09c2000
[4295330.744000]        00000001 e808df20 e7807bac c018466a c18f0e38 dfcdc600 4485368e 00000000
[4295330.744000]        c18f0e38 e808df20 e7807bac 00000000 c017b92a c18f0e38 00000001 4485368e
[4295330.744000] Call Trace:
[4295330.744000]  [<f8934ba9>] __ext3_journal_stop+0x19/0x40 [ext3]
[4295330.744000]  [<f89307b6>] ext3_dirty_inode+0x56/0x70 [ext3]
[4295330.744000]  [<c018466a>] __mark_inode_dirty+0x2a/0x190
[4295330.744000]  [<c017b92a>] update_atime+0x7a/0x90
[4295330.744000]  [<c01403aa>] do_generic_mapping_read+0x30a/0x4e0
[4295330.744000]  [<c014ee61>] zap_pte_range+0x181/0x2a0
[4295330.744000]  [<c014f062>] unmap_page_range+0xe2/0x130
[4295330.744000]  [<f8ae6002>] ieee80211_iterate_nodes+0x6b/0xc2 [wlan]
[4295330.744000]  [<f8aeafc0>] read_ap_result+0x0/0x55b [wlan]
[4295330.744000]  [<f8aecc55>] ieee80211_ioctl_giwscan+0x5c/0xa8 [wlan]
[4295330.744000]  [<f8aeafc0>] read_ap_result+0x0/0x55b [wlan]
[4295330.744000]  [<c028b7ca>] wireless_process_ioctl+0x61a/0x790
[4295330.744000]  [<f8b09428>] ath_ioctl_giwscan+0x0/0x18 [ath_pci]
[4295330.744000]  [<c0280e0b>] dev_ioctl+0x25b/0x2b0
[4295330.744000]  [<c0172ed2>] do_ioctl+0x22/0x80
[4295330.744000]  [<c01730b1>] vfs_ioctl+0x51/0x1f0
[4295330.744000]  [<c01732ad>] sys_ioctl+0x5d/0x90
[4295330.744000]  [<c010302b>] sysenter_past_esp+0x54/0x79
[4295330.744000] Code: 8b 43 04 89 42 04 89 ca 8b 84 24 dc 00 00 00 89 50 10 c7 03 00 00 00 00 66 c7 43 02 05 8b 8b 94 24 e0 00 00 00 8b 82 28 01 00 00 <0f> b7 00 69 c0 a0 86 01 00 89 43 04 66 c7 43 08 01 00 8b 8c 24
[4295330.744000]  <6>note: iwlist[5697] exited with preempt_count 1


lspci -v:
0000:00:00.0 Host bridge: Intel Corporation Mobile 915GM/PM/GMS/910GML Express Processor to DRAM Controller (rev 03)
        Subsystem: Acer Incorporated [ALI]: Unknown device 006a
        Flags: bus master, fast devsel, latency 0
        Capabilities: [e0] #09 [3109]

0000:00:02.0 VGA compatible controller: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller (rev 03) (prog-if 00 [VGA])
        Subsystem: Acer Incorporated [ALI]: Unknown device 006a
        Flags: bus master, fast devsel, latency 0, IRQ 185
        Memory at b0080000 (32-bit, non-prefetchable) [size=512K]
        I/O ports at 1800 [size=8]
        Memory at c0000000 (32-bit, prefetchable) [size=256M]
        Memory at b0000000 (32-bit, non-prefetchable) [size=256K]
        Capabilities: [d0] Power Management version 2

0000:00:02.1 Display controller: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller (rev 03)
        Subsystem: Acer Incorporated [ALI]: Unknown device 006a
        Flags: fast devsel
        Memory at 52000000 (32-bit, non-prefetchable) [disabled] [size=512K]
        Capabilities: [d0] Power Management version 2

0000:00:1d.0 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #1 (rev 03) (prog-if 00 [UHCI])
        Subsystem: Acer Incorporated [ALI]: Unknown device 006a
        Flags: bus master, medium devsel, latency 0, IRQ 193
        I/O ports at 1820 [size=32]

0000:00:1d.1 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #2 (rev 03) (prog-if 00 [UHCI])
        Subsystem: Acer Incorporated [ALI]: Unknown device 006a
        Flags: bus master, medium devsel, latency 0, IRQ 201
        I/O ports at 1840 [size=32]

0000:00:1d.2 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #3 (rev 03) (prog-if 00 [UHCI])
        Subsystem: Acer Incorporated [ALI]: Unknown device 006a
        Flags: bus master, medium devsel, latency 0, IRQ 209
        I/O ports at 1860 [size=32]

0000:00:1d.3 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #4 (rev 03) (prog-if 00 [UHCI])
        Subsystem: Acer Incorporated [ALI]: Unknown device 006a
        Flags: bus master, medium devsel, latency 0, IRQ 217
        I/O ports at 1880 [size=32]

0000:00:1d.7 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB2 EHCI Controller (rev 03) (prog-if 20 [EHCI])
        Subsystem: Acer Incorporated [ALI]: Unknown device 006a
        Flags: bus master, medium devsel, latency 0, IRQ 193
        Memory at b0040000 (32-bit, non-prefetchable) [size=1K]
        Capabilities: [50] Power Management version 2
        Capabilities: [58] #0a [20a0]

0000:00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev d3) (prog-if 01 [Subtractive decode])
        Flags: bus master, fast devsel, latency 0
        Bus: primary=00, secondary=06, subordinate=0a, sec-latency=168
        I/O behind bridge: 00003000-00003fff
        Memory behind bridge: b0100000-b01fffff
        Prefetchable memory behind bridge: 0000000050000000-0000000051f00000
        Capabilities: [50] #0d [0000]

0000:00:1e.2 Multimedia audio controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) AC'97 Audio Controller (rev 03)
        Subsystem: Acer Incorporated [ALI]: Unknown device 006a
        Flags: bus master, medium devsel, latency 0, IRQ 177
        I/O ports at 1c00 [size=256]
        I/O ports at 18c0 [size=64]
        Memory at b0040800 (32-bit, non-prefetchable) [size=512]
        Memory at b0040400 (32-bit, non-prefetchable) [size=256]
        Capabilities: [50] Power Management version 2

0000:00:1e.3 Modem: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) AC'97 Modem Controller (rev 03) (prog-if 00 [Generic])
        Subsystem: Acer Incorporated [ALI]: Unknown device 006a
        Flags: medium devsel, IRQ 177
        I/O ports at 2400 [size=256]
        I/O ports at 2000 [size=128]
        Capabilities: [50] Power Management version 2

0000:00:1f.0 ISA bridge: Intel Corporation 82801FBM (ICH6M) LPC Interface Bridge (rev 03)
        Subsystem: Acer Incorporated [ALI]: Unknown device 006a
        Flags: bus master, medium devsel, latency 0

0000:00:1f.1 IDE interface: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) IDE Controller (rev 03) (prog-if 8a [Master SecP PriP])
        Subsystem: Acer Incorporated [ALI]: Unknown device 006a
        Flags: bus master, medium devsel, latency 0, IRQ 185
        I/O ports at <unassigned>
        I/O ports at <unassigned>
        I/O ports at <unassigned>
        I/O ports at <unassigned>
        I/O ports at 1810 [size=16]

0000:00:1f.3 SMBus: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) SMBus Controller (rev 03)
        Subsystem: Acer Incorporated [ALI]: Unknown device 006a
        Flags: medium devsel, IRQ 11
        I/O ports at 20a0 [size=32]

0000:06:05.0 Ethernet controller: Atheros Communications, Inc.: Unknown device 001a (rev 01)
        Subsystem: AMBIT Microsystem Corp.: Unknown device 0418
        Flags: bus master, medium devsel, latency 168, IRQ 177
        Memory at b0100000 (32-bit, non-prefetchable) [size=64K]
        Capabilities: [44] Power Management version 2

0000:06:07.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
        Subsystem: Acer Incorporated [ALI]: Unknown device 006a
        Flags: bus master, medium devsel, latency 32, IRQ 225
        I/O ports at 3000 [size=256]
        Memory at b0110000 (32-bit, non-prefetchable) [size=256]
        Capabilities: [50] Power Management version 2

0000:06:09.0 CardBus bridge: ENE Technology Inc CB1410 Cardbus Controller (rev 01)
        Subsystem: Acer Incorporated [ALI]: Unknown device 006a
        Flags: bus master, medium devsel, latency 168, IRQ 169
        Memory at b0111000 (32-bit, non-prefetchable) [size=4K]
        Bus: primary=06, secondary=07, subordinate=0a, sec-latency=176
        Memory window 0: 50000000-51fff000 (prefetchable)
        Memory window 1: 54000000-55fff000
        I/O window 0: 00003400-000034ff
        I/O window 1: 00003800-000038ff
        16-bit legacy interface ports at 0001

** Affects: linux-source-2.6.15 (Ubuntu)
       Severity: Normal
       Priority: (none set)
         Status: Unconfirmed

-- 
system half-hangs after wifi scan
https://launchpad.net/bugs/48642

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