Public bug reported:
Binary package hint: linux-backports-modules-2.6.27-7-generic
I'm running intrepid on acer aspire one. Bultin wireless card (from lspci) :
03:00.0 Ethernet controller: Atheros Communications Inc. AR242x 802.11abg
Wireless PCI Express Adapter (rev 01)
Sometimes wireless would stop working with this error on syslog :
Oct 30 14:28:06 acer kernel: [ 130.534664] ------------[ cut here ]------------
Oct 30 14:28:06 acer kernel: [ 130.534678] WARNING: at
/build/buildd/linux-backports-modules-2.6.27-2.6.27/debian/build/build-generic/compat-wireless-2.6/net/mac80211
/main.c:232 ieee80211_hw_config+0x85/0x90 [lbm_cw_mac80211]()
Oct 30 14:28:06 acer kernel: [ 130.534701] Modules linked in: af_packet i915
drm binfmt_misc ipv6 rfcomm bridge stp bnep sco l2cap bluetooth vboxdrv ppdev
parport_pc
lp parport pci_slot sbs sbshc container iptable_filter ip_tables x_tables arc4
ecb crypto_blkcipher ath5k lbm_cw_mac80211 lbm_cw_cfg80211 cpufreq_ondemand
cpufreq_user
space acpi_cpufreq freq_table joydev mmc_block snd_hda_intel snd_pcm_oss
acer_wmi snd_mixer_oss led_class uvcvideo snd_pcm compat_ioctl32 videodev
v4l1_compat evdev vi
deo output snd_seq_dummy wmi sdhci_pci sdhci mmc_core r8101 snd_seq_oss
snd_seq_midi snd_rawmidi battery ac button snd_seq_midi_event psmouse snd_seq
serio_raw snd_timer snd_seq_device iTCO_wdt iTCO_vendor_support snd intel_agp
agpgart shpchp pci_hotplug soundcore snd_page_alloc pcspkr ext3 jbd mbcache
sd_mod crc_t10dif sg pata_acpi ata_generic ata_piix libata scsi_mod dock
ehci_hcd uhci_hcd usbcore thermal processor fan fbcon tileblit font bitblit
softcursor fuse
Oct 30 14:28:06 acer kernel: [ 130.535064] Pid: 3747, comm: ath5k_pci Not
tainted 2.6.27-7-generic #1
Oct 30 14:28:06 acer kernel: [ 130.535078] [<c037c3f6>] ? printk+0x1d/0x1f
Oct 30 14:28:06 acer kernel: [ 130.535104] [<c0131de9>]
warn_on_slowpath+0x59/0x90
Oct 30 14:28:06 acer kernel: [ 130.535152] [<c025134a>] ?
__ratelimit+0xba/0xe0
Oct 30 14:28:06 acer kernel: [ 130.535174] [<c037c3f6>] ? printk+0x1d/0x1f
Oct 30 14:28:06 acer kernel: [ 130.535220] [<f8ca3a38>] ?
ath5k_reset+0x208/0x210 [ath5k]
Oct 30 14:28:06 acer kernel: [ 130.535271] [<c036940f>] ?
wireless_send_event+0x15f/0x230
Oct 30 14:28:06 acer kernel: [ 130.535300] [<f8cdb875>]
ieee80211_hw_config+0x85/0x90 [lbm_cw_mac80211]
Oct 30 14:28:06 acer kernel: [ 130.535353] [<f8ce0527>]
lbm_cw_ieee80211_scan_completed+0xb7/0x2f0 [lbm_cw_mac80211]
Oct 30 14:28:06 acer kernel: [ 130.535408] [<c0143f3b>] ?
queue_work_on+0x4b/0x60
Oct 30 14:28:06 acer kernel: [ 130.535436] [<f8ce07cd>]
ieee80211_scan_work+0x6d/0x180 [lbm_cw_mac80211]
Oct 30 14:28:06 acer kernel: [ 130.535493] [<f8ce0760>] ?
ieee80211_scan_work+0x0/0x180 [lbm_cw_mac80211]
Oct 30 14:28:06 acer kernel: [ 130.535546] [<c0143645>]
run_workqueue+0x95/0x160
Oct 30 14:28:06 acer kernel: [ 130.535564] [<c0147576>] ?
finish_wait+0x16/0x70
Oct 30 14:28:06 acer kernel: [ 130.535583] [<c01438e8>]
worker_thread+0x88/0xf0
Oct 30 14:28:06 acer kernel: [ 130.535601] [<c01474b0>] ?
autoremove_wake_function+0x0/0x50
Oct 30 14:28:06 acer kernel: [ 130.535621] [<c0143860>] ?
worker_thread+0x0/0xf0
Oct 30 14:28:06 acer kernel: [ 130.535640] [<c0147141>] kthread+0x41/0x80
Oct 30 14:28:06 acer kernel: [ 130.535656] [<c0147100>] ? kthread+0x0/0x80
Oct 30 14:28:06 acer kernel: [ 130.535675] [<c0105297>]
kernel_thread_helper+0x7/0x10
Oct 30 14:28:06 acer kernel: [ 130.535695] =======================
Oct 30 14:28:06 acer kernel: [ 130.535706] ---[ end trace d8bbd9c128eb2cd5 ]---
Oct 30 14:28:06 acer kernel: [ 130.537802] ------------[ cut here ]------------
After this error occured, wireless would stop working :
- iwlist wlan0 scanning returns no result or complains about device down
- ifconfig wlan0 up says device not available
- network manager applet shows no available network
rebooting doesn't fix the problem; shutdown and cold startup required.
This error most often occures when connecting to WPA2 network. In my case, I'm
using
- linux-backports-modules-2.6.27-7-generic 2.6.27-7.4
- network-manager 0.6.6-0ubuntu5 (from hardy, needed due to wireless settings)
- WPA2 Enterprise/PEAP/GTC
Connecting to non-encrypted networks works fine.
** Affects: linux-backports-modules-2.6.27 (Ubuntu)
Importance: Undecided
Status: New
** Tags: ath5k gtc intrepid linux-backports-modules wireless wpa2
** Tags added: ath5k gtc intrepid linux-backports-modules wireless wpa2
--
[inrepid] ath5k linux-backports-modules crash
https://bugs.launchpad.net/bugs/290991
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