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SubjectRe: 2.6.38-rc7, iwlagn crash
Cc'ing Wey-yi and linux-wireless...anyone else having problems with
iwlagn and IBSS?

On Fri, Mar 04, 2011 at 03:27:22AM +0000, Mathias Burén wrote:
> Hi,
>
> (please cc as not subscribed)
>
> I'm running Ubuntu 10.10 and 2.6.38-020638rc7-generic #201103020909
> SMP Wed Mar 2 09:11:42 UTC 2011 x86_64 GNU/Linux from
> http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.38-rc7-natty/ . The
> machine is a Lenovo T510 with this chip:
>
> 03:00.0 Network controller: Intel Corporation Centrino Advanced-N 6200 (rev 35)
>
> I was trying to setup up an adhoc wifi connection between my phone
> and the laptop when I saw this in dmesg:
>
>
> [111474.461347] ------------[ cut here ]------------
> [111474.461377] WARNING: at
> /home/kernel-ppa/COD/linux/drivers/net/wireless/iwlwifi/iwl-core.c:1898
> iwl_mac_change_interface+0x12e/0x130 [iwlcore]()
> [111474.461382] Hardware name: 4384BB3
> [111474.461384] Modules linked in: nf_nat_h323 nf_conntrack_h323
> nf_nat_pptp nf_conntrack_pptp nf_conntrack_proto_gre nf_nat_proto_gre
> nf_nat_tftp nf_conntrack_tftp nf_nat_sip nf_conntrack_sip nf_nat_irc
> nf_nat_ftp cdc_acm usbhid hid xt_limit xt_tcpudp ipt_LOG
> ipt_MASQUERADE xt_DSCP ipt_REJECT nf_conntrack_irc nf_conntrack_ftp
> xt_state nls_iso8859_1 nls_cp437 vfat fat binfmt_misc vboxnetadp
> vboxnetflt vboxdrv microcode parport_pc ppdev iptable_nat nf_nat
> nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 iptable_mangle
> iptable_filter ip_tables x_tables uvcvideo snd_hda_codec_hdmi
> snd_hda_codec_conexant arc4 videodev v4l2_compat_ioctl32 snd_hda_intel
> snd_hda_codec snd_hwdep joydev snd_pcm hdaps thinkpad_ec iwlagn
> snd_seq_midi iwlcore psmouse snd_rawmidi snd_seq_midi_event mac80211
> snd_seq serio_raw tpm_tis tpm lp parport thinkpad_acpi tpm_bios nvram
> snd_timer snd_seq_device cfg80211 snd intel_ips soundcore
> snd_page_alloc sha256_generic aesni_intel cryptd aes_x86_64
> aes_generic dm_crypt usb_storage uas i915 ahci drm_kms_helper
> firewire_ohci e1000e libahci sdhci_pci firewire_core drm sdhci
> crc_itu_t i2c_algo_bit video
> [111474.461481] Pid: 1317, comm: wpa_supplicant Tainted: G W
> 2.6.38-020638rc7-generic #201103020909
> [111474.461483] Call Trace:
> [111474.461492] [<ffffffffa02e6c7e>] ?
> iwl_mac_change_interface+0x12e/0x130 [iwlcore]
> [111474.461497] [<ffffffffa02e6c7e>] ?
> iwl_mac_change_interface+0x12e/0x130 [iwlcore]
> [111474.461507] [<ffffffff81065430>] ? warn_slowpath_common+0x90/0xc0
> [111474.461510] [<ffffffff8106547a>] ? warn_slowpath_null+0x1a/0x20
> [111474.461514] [<ffffffffa02e6c7e>] ?
> iwl_mac_change_interface+0x12e/0x130 [iwlcore]
> [111474.461527] [<ffffffffa02869ec>] ?
> ieee80211_runtime_change_iftype+0xdc/0x180 [mac80211]
> [111474.461535] [<ffffffffa0286b85>] ?
> ieee80211_if_change_type+0xf5/0x120 [mac80211]
> [111474.461543] [<ffffffffa028995b>] ?
> ieee80211_change_iface+0x3b/0x130 [mac80211]
> [111474.461551] [<ffffffffa01bf898>] ?
> cfg80211_change_iface+0xe8/0x1c0 [cfg80211]
> [111474.461558] [<ffffffffa01d78f6>] ?
> cfg80211_wext_siwmode+0xa6/0xf0 [cfg80211]
> [111474.461564] [<ffffffff8158a4cb>] ? ioctl_standard_call+0x6b/0xf0
> [111474.461566] [<ffffffff8158a460>] ? ioctl_standard_call+0x0/0xf0
> [111474.461569] [<ffffffff81589882>] ? wireless_process_ioctl+0x102/0x130
> [111474.461571] [<ffffffff8158afe0>] ? ioctl_private_call+0x0/0xa0
> [111474.461573] [<ffffffff8158afe0>] ? ioctl_private_call+0x0/0xa0
> [111474.461575] [<ffffffff8158a460>] ? ioctl_standard_call+0x0/0xf0
> [111474.461578] [<ffffffff8158991c>] ? wext_ioctl_dispatch+0x6c/0x90
> [111474.461580] [<ffffffff81589b66>] ? wext_handle_ioctl+0x46/0x90
> [111474.461585] [<ffffffff814ad76a>] ? sockfd_lookup_light+0x4a/0x80
> [111474.461589] [<ffffffff814c687b>] ? dev_ioctl+0x28b/0x2a0
> [111474.461591] [<ffffffff814ad25f>] ? sock_ioctl+0xbf/0x280
> [111474.461594] [<ffffffff811704bd>] ? vfs_ioctl+0x1d/0x50
> [111474.461596] [<ffffffff81170f79>] ? do_vfs_ioctl+0x69/0x1d0
> [111474.461598] [<ffffffff81171174>] ? sys_ioctl+0x94/0xa0
> [111474.461601] [<ffffffff8100c002>] ? system_call_fastpath+0x16/0x1b
> [111474.461603] ---[ end trace fb86611b81442165 ]---
> [111474.464580] iwlagn 0000:03:00.0: Error: Response NULL in 'REPLY_ADD_STA'
> [111474.464586] iwlagn 0000:03:00.0: Adding station ff:ff:ff:ff:ff:ff failed.
> [111474.472777] wlan0: Selected IBSS BSSID 86:9f:24:fb:b0:44 based on
> configured SSID
> [111474.542468] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111474.543552] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111474.543809] wlan0: No active IBSS STAs - trying to scan for other
> IBSS networks with same SSID (merge)
> [111475.894906] wlan0: Selected IBSS BSSID 86:9f:24:fb:b0:44 based on
> configured SSID
> [111475.959248] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111475.960079] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111475.960195] wlan0: No active IBSS STAs - trying to scan for other
> IBSS networks with same SSID (merge)
> [111477.339405] wlan0: Selected IBSS BSSID 86:9f:24:fb:b0:44 based on
> configured SSID
> [111477.386319] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111477.387069] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111477.387213] wlan0: No active IBSS STAs - trying to scan for other
> IBSS networks with same SSID (merge)
> [111478.700588] wlan0: Selected IBSS BSSID 86:9f:24:fb:b0:44 based on
> configured SSID
> [111478.753591] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111478.754417] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111478.791333] wlan0: No active IBSS STAs - trying to scan for other
> IBSS networks with same SSID (merge)
> [111480.192722] wlan0: Selected IBSS BSSID 86:9f:24:fb:b0:44 based on
> configured SSID
> [111480.249724] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111480.250545] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111480.250695] wlan0: No active IBSS STAs - trying to scan for other
> IBSS networks with same SSID (merge)
> [111481.654631] wlan0: Selected IBSS BSSID 86:9f:24:fb:b0:44 based on
> configured SSID
> [111481.696438] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111481.697237] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111481.755643] wlan0: No active IBSS STAs - trying to scan for other
> IBSS networks with same SSID (merge)
> [111483.016561] wlan0: Selected IBSS BSSID 86:9f:24:fb:b0:44 based on
> configured SSID
> [111483.073672] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111483.074542] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111483.084848] wlan0: No active IBSS STAs - trying to scan for other
> IBSS networks with same SSID (merge)
> [111484.463193] wlan0: Selected IBSS BSSID 86:9f:24:fb:b0:44 based on
> configured SSID
> [111484.510342] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111484.511087] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111484.515897] wlan0: No active IBSS STAs - trying to scan for other
> IBSS networks with same SSID (merge)
> [111485.930848] wlan0: Selected IBSS BSSID 86:9f:24:fb:b0:44 based on
> configured SSID
> [111485.987148] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111485.988018] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111485.988177] wlan0: No active IBSS STAs - trying to scan for other
> IBSS networks with same SSID (merge)
> [111487.369539] wlan0: Selected IBSS BSSID 86:9f:24:fb:b0:44 based on
> configured SSID
> [111487.423704] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111487.424479] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111487.424621] wlan0: No active IBSS STAs - trying to scan for other
> IBSS networks with same SSID (merge)
> [111488.796752] wlan0: Selected IBSS BSSID 86:9f:24:fb:b0:44 based on
> configured SSID
> [111488.850445] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111488.851280] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111488.851502] wlan0: No active IBSS STAs - trying to scan for other
> IBSS networks with same SSID (merge)
> [111490.271484] wlan0: Selected IBSS BSSID 86:9f:24:fb:b0:44 based on
> configured SSID
> [111490.307285] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111490.308059] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111490.342785] wlan0: No active IBSS STAs - trying to scan for other
> IBSS networks with same SSID (merge)
> [111491.678358] wlan0: Selected IBSS BSSID 86:9f:24:fb:b0:44 based on
> configured SSID
> [111491.744236] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111491.745065] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111491.773720] wlan0: No active IBSS STAs - trying to scan for other
> IBSS networks with same SSID (merge)
> [111493.205384] wlan0: Selected IBSS BSSID 86:9f:24:fb:b0:44 based on
> configured SSID
> [111493.250872] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111493.251799] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111493.307372] wlan0: No active IBSS STAs - trying to scan for other
> IBSS networks with same SSID (merge)
> [111494.660506] wlan0: Selected IBSS BSSID 86:9f:24:fb:b0:44 based on
> configured SSID
> [111494.717399] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111494.718199] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111496.047915] wlan0: Trigger new scan to find an IBSS to join
> [111501.880336] wlan0: Trigger new scan to find an IBSS to join
> [111504.990820] wlan0: Creating new IBSS network, BSSID be:c7:fe:1c:61:99
> [111505.034037] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111505.034743] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111506.404722] wlan0: Trigger new scan to find an IBSS to join
> [111511.567631] wlan0: Trigger new scan to find an IBSS to join
> [111514.702225] wlan0: Creating new IBSS network, BSSID 46:d5:59:b4:0b:54
> [111514.752202] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111514.753078] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111516.083283] wlan0: Trigger new scan to find an IBSS to join
> [111521.585645] wlan0: Trigger new scan to find an IBSS to join
> [111524.617640] wlan0: Creating new IBSS network, BSSID b6:ca:41:c0:3e:bd
> [111524.660101] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111524.661059] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111525.980241] wlan0: Trigger new scan to find an IBSS to join
> [111531.296978] wlan0: Trigger new scan to find an IBSS to join
> [111534.328992] wlan0: Creating new IBSS network, BSSID d6:00:8a:56:93:99
> [111534.379572] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111534.380379] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111535.712405] wlan0: Trigger new scan to find an IBSS to join
> [111541.621646] wlan0: Trigger new scan to find an IBSS to join
> [111544.755981] wlan0: Creating new IBSS network, BSSID 72:06:bb:e2:44:34
> [111544.817710] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111544.818623] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111546.186140] wlan0: Trigger new scan to find an IBSS to join
> [111551.332991] wlan0: Trigger new scan to find an IBSS to join
> [111554.467270] wlan0: Creating new IBSS network, BSSID 2a:49:ae:30:50:9e
> [111554.533525] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111554.534350] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111555.904319] wlan0: Trigger new scan to find an IBSS to join
> [111561.555433] wlan0: Trigger new scan to find an IBSS to join
> [111564.587401] wlan0: Creating new IBSS network, BSSID aa:87:38:e5:ae:c0
> [111564.661200] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111564.662171] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111565.981796] wlan0: Trigger new scan to find an IBSS to join
> [111568.625818] iwlagn 0000:03:00.0: failed to remove IBSS station
> 00:00:00:00:00:00
> [111631.701608] ADDRCONF(NETDEV_UP): wlan0: link is not ready
> [111631.829391] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
> [111631.833307] wlan0: Trigger new scan to find an IBSS to join
> [111634.393859] iwlagn 0000:03:00.0: failed to remove IBSS station
> 00:00:00:00:00:00
> [111634.705546] wlan0: Trigger new scan to find an IBSS to join
> [111639.969168] wlan0: Trigger new scan to find an IBSS to join
> [111642.456143] wlan0: no IPv6 routers present
> [111643.095083] wlan0: Creating new IBSS network, BSSID ce:27:15:66:ab:a8
> [111643.095541] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111643.096508] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111644.424790] wlan0: Trigger new scan to find an IBSS to join
> [111649.672932] wlan0: Trigger new scan to find an IBSS to join
> [111652.806533] wlan0: Creating new IBSS network, BSSID fe:a3:87:bf:ed:2f
> [111652.812108] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111652.813077] iwlagn 0000:03:00.0: Unable to find TIM Element in beacon
> [111654.639431] iwlagn 0000:03:00.0: Error sending
> REPLY_TX_POWER_DBM_CMD: time out after 500ms.
> [111654.639443] iwlagn 0000:03:00.0: Error sending TX power (-110)
> [111654.639447] ------------[ cut here ]------------
> [111654.639477] WARNING: at
> /home/kernel-ppa/COD/linux/drivers/net/wireless/iwlwifi/iwl-core.c:1898
> iwl_mac_change_interface+0x12e/0x130 [iwlcore]()
> [111654.639482] Hardware name: 4384BB3
> [111654.639484] Modules linked in: nf_nat_h323 nf_conntrack_h323
> nf_nat_pptp nf_conntrack_pptp nf_conntrack_proto_gre nf_nat_proto_gre
> nf_nat_tftp nf_conntrack_tftp nf_nat_sip nf_conntrack_sip nf_nat_irc
> nf_nat_ftp cdc_acm usbhid hid xt_limit xt_tcpudp ipt_LOG
> ipt_MASQUERADE xt_DSCP ipt_REJECT nf_conntrack_irc nf_conntrack_ftp
> xt_state nls_iso8859_1 nls_cp437 vfat fat binfmt_misc vboxnetadp
> vboxnetflt vboxdrv microcode parport_pc ppdev iptable_nat nf_nat
> nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 iptable_mangle
> iptable_filter ip_tables x_tables uvcvideo snd_hda_codec_hdmi
> snd_hda_codec_conexant arc4 videodev v4l2_compat_ioctl32 snd_hda_intel
> snd_hda_codec snd_hwdep joydev snd_pcm hdaps thinkpad_ec iwlagn
> snd_seq_midi iwlcore psmouse snd_rawmidi snd_seq_midi_event mac80211
> snd_seq serio_raw tpm_tis tpm lp parport thinkpad_acpi tpm_bios nvram
> snd_timer snd_seq_device cfg80211 snd intel_ips soundcore
> snd_page_alloc sha256_generic aesni_intel cryptd aes_x86_64
> aes_generic dm_crypt usb_storage uas i915 ahci drm_kms_helper
> firewire_ohci e1000e libahci sdhci_pci firewire_core drm sdhci
> crc_itu_t i2c_algo_bit video
> [111654.639584] Pid: 1317, comm: wpa_supplicant Tainted: G W
> 2.6.38-020638rc7-generic #201103020909
> [111654.639586] Call Trace:
> [111654.639594] [<ffffffffa02e6c7e>] ?
> iwl_mac_change_interface+0x12e/0x130 [iwlcore]
> [111654.639599] [<ffffffffa02e6c7e>] ?
> iwl_mac_change_interface+0x12e/0x130 [iwlcore]
> [111654.639605] [<ffffffff81065430>] ? warn_slowpath_common+0x90/0xc0
> [111654.639608] [<ffffffff8106547a>] ? warn_slowpath_null+0x1a/0x20
> [111654.639612] [<ffffffffa02e6c7e>] ?
> iwl_mac_change_interface+0x12e/0x130 [iwlcore]
> [111654.639626] [<ffffffffa02869ec>] ?
> ieee80211_runtime_change_iftype+0xdc/0x180 [mac80211]
> [111654.639633] [<ffffffffa0286b85>] ?
> ieee80211_if_change_type+0xf5/0x120 [mac80211]
> [111654.639641] [<ffffffffa028995b>] ?
> ieee80211_change_iface+0x3b/0x130 [mac80211]
> [111654.639650] [<ffffffffa01bf898>] ?
> cfg80211_change_iface+0xe8/0x1c0 [cfg80211]
> [111654.639657] [<ffffffffa01d78f6>] ?
> cfg80211_wext_siwmode+0xa6/0xf0 [cfg80211]
> [111654.639661] [<ffffffff8158a4cb>] ? ioctl_standard_call+0x6b/0xf0
> [111654.639664] [<ffffffff8158a460>] ? ioctl_standard_call+0x0/0xf0
> [111654.639666] [<ffffffff81589882>] ? wireless_process_ioctl+0x102/0x130
> [111654.639668] [<ffffffff8158afe0>] ? ioctl_private_call+0x0/0xa0
> [111654.639670] [<ffffffff8158afe0>] ? ioctl_private_call+0x0/0xa0
> [111654.639672] [<ffffffff8158a460>] ? ioctl_standard_call+0x0/0xf0
> [111654.639675] [<ffffffff8158991c>] ? wext_ioctl_dispatch+0x6c/0x90
> [111654.639677] [<ffffffff81589b66>] ? wext_handle_ioctl+0x46/0x90
> [111654.639680] [<ffffffff814ad76a>] ? sockfd_lookup_light+0x4a/0x80
> [111654.639683] [<ffffffff814c687b>] ? dev_ioctl+0x28b/0x2a0
> [111654.639685] [<ffffffff814ad25f>] ? sock_ioctl+0xbf/0x280
> [111654.639688] [<ffffffff811704bd>] ? vfs_ioctl+0x1d/0x50
> [111654.639690] [<ffffffff81170f79>] ? do_vfs_ioctl+0x69/0x1d0
> [111654.639692] [<ffffffff81171174>] ? sys_ioctl+0x94/0xa0
> [111654.639695] [<ffffffff8100c002>] ? system_call_fastpath+0x16/0x1b
> [111654.639697] ---[ end trace fb86611b81442166 ]---
>
> I think the crash happens when the phone attempts to get an IP, at
> least that's what the phone says right after/at the crash. Any ideas?
>
> // Mathias
> --
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