When I switch off my laptop running with kernel 3.1.6, I can see the following warnings in the /var/log/messages. Jan 16 01:00:02 WZLap shutdown[3252]: shutting down for system halt Jan 16 01:00:05 WZLap kernel: [ 830.665169] ------------[ cut here ]------------ Jan 16 01:00:05 WZLap kernel: [ 830.667477] WARNING: at drivers/net/wireless/iwlwifi/iwl-agn-lib.c:1766 iwlagn_set_rxon_chain+0x107/0x1b2 [iwlagn]() Jan 16 01:00:05 WZLap kernel: [ 830.669864] Hardware name: Dell System Vostro 3750 Jan 16 01:00:05 WZLap kernel: [ 830.672253] invalid SMPS mode 0 Jan 16 01:00:05 WZLap kernel: [ 830.672287] Modules linked in: hidp hid acpi_cpufreq mperf tun cpufreq_conservative cpufreq_userspace cpufreq_stats cpufreq_powersave ipx p8023 parport_pc ppdev lp parport bnep rfcomm binfmt_misc uinput fuse nfsd nfs lockd fscache auth_rpcgss nfs_acl sunrpc ip6table_filter ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_tcpudp xt_owner iptable_filter ip_tables x_tables loop sha256_generic cbc dm_crypt kvm_intel kvm snd_hda_codec_realtek joydev snd_hda_intel nouveau i915 snd_hda_codec snd_hwdep ttm drm_kms_helper uvcvideo videodev media v4l2_compat_ioctl32 snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_midi drm snd_rawmidi snd_seq_midi_event arc4 snd_seq snd_timer snd_seq_device cryptd aes_x86_64 aes_generic iTCO_wdt snd psmouse intel_agp i2c_algo_bit i2c_i801 iwlagn dell_laptop dell_wmi ecb iTCO_vendor_support i2c_core soundcore serio_raw sparse_keymap evdev intel_gtt pcspkr mxm_wmi btusb dcdbas agpgart snd_page_alloc mac80211 wmi bluetooth cfg80211 processor vid Jan 16 01:00:05 WZLap kernel: eo ac button battery rfkill power_supply ext4 mbcache jbd2 crc16 dm_mod ums_realtek usb_storage uas sr_mod sd_mod cdrom crc_t10dif xhci_hcd ahci libahci libata scsi_mod thermal thermal_sys ehci_hcd usbcore r8169 mii [last unloaded: scsi_wait_scan] Jan 16 01:00:05 WZLap kernel: [ 830.695613] Pid: 1535, comm: wpa_supplicant Not tainted 3.1.6 #1 Jan 16 01:00:05 WZLap kernel: [ 830.698749] Call Trace: Jan 16 01:00:05 WZLap kernel: [ 830.701867] [<ffffffff81045573>] ? warn_slowpath_common+0x78/0x8c Jan 16 01:00:05 WZLap kernel: [ 830.705024] [<ffffffff8104561f>] ? warn_slowpath_fmt+0x45/0x4a Jan 16 01:00:05 WZLap kernel: [ 830.708156] [<ffffffff81287823>] ? netlink_broadcast_filtered+0x243/0x273 Jan 16 01:00:05 WZLap kernel: [ 830.711282] [<ffffffffa02bb398>] ? iwlagn_set_rxon_chain+0x107/0x1b2 [iwlagn] Jan 16 01:00:05 WZLap kernel: [ 830.714407] [<ffffffff81035379>] ? should_resched+0x5/0x23 Jan 16 01:00:05 WZLap kernel: [ 830.717557] [<ffffffffa02c500c>] ? iwlagn_bss_info_changed+0x225/0x493 [iwlagn] Jan 16 01:00:05 WZLap kernel: [ 830.720700] [<ffffffff81035379>] ? should_resched+0x5/0x23 Jan 16 01:00:05 WZLap kernel: [ 830.723910] [<ffffffffa0214176>] ? __ieee80211_recalc_idle+0xef/0x199 [mac80211] Jan 16 01:00:05 WZLap kernel: [ 830.727104] [<ffffffff81035379>] ? should_resched+0x5/0x23 Jan 16 01:00:05 WZLap kernel: [ 830.730322] [<ffffffffa0214d48>] ? ieee80211_recalc_idle+0x1e/0x42 [mac80211] Jan 16 01:00:05 WZLap kernel: [ 830.733577] [<ffffffffa02117ae>] ? ieee80211_mgd_deauth+0x19c/0x1c0 [mac80211] Jan 16 01:00:05 WZLap kernel: [ 830.736793] [<ffffffffa024b71a>] ? __cfg80211_mlme_deauth+0x107/0x116 [cfg80211] Jan 16 01:00:05 WZLap kernel: [ 830.740001] [<ffffffff81323ff2>] ? schedule_hrtimeout_range_clock+0xc8/0x103 Jan 16 01:00:05 WZLap kernel: [ 830.743220] [<ffffffff81035379>] ? should_resched+0x5/0x23 Jan 16 01:00:05 WZLap kernel: [ 830.746418] [<ffffffffa024b792>] ? cfg80211_mlme_deauth+0x69/0x82 [cfg80211] Jan 16 01:00:05 WZLap kernel: [ 830.749651] [<ffffffff8132345a>] ? _cond_resched+0x7/0x1c Jan 16 01:00:05 WZLap kernel: [ 830.752859] [<ffffffffa02425e5>] ? nl80211_deauthenticate+0xbc/0xc7 [cfg80211] Jan 16 01:00:05 WZLap kernel: [ 830.756051] [<ffffffffa02445b0>] ? nl80211_pre_doit+0x85/0xfb [cfg80211] Jan 16 01:00:05 WZLap kernel: [ 830.759198] [<ffffffff81288f61>] ? genl_rcv_msg+0x1cb/0x1f9 Jan 16 01:00:05 WZLap kernel: [ 830.762321] [<ffffffff81288d96>] ? genl_rcv+0x28/0x28 Jan 16 01:00:05 WZLap kernel: [ 830.765449] [<ffffffff812889f4>] ? netlink_rcv_skb+0x36/0x7a Jan 16 01:00:05 WZLap kernel: [ 830.768564] [<ffffffff81288d8d>] ? genl_rcv+0x1f/0x28 Jan 16 01:00:05 WZLap kernel: [ 830.771673] [<ffffffff81288525>] ? netlink_unicast+0xe6/0x14e Jan 16 01:00:05 WZLap kernel: [ 830.774805] [<ffffffff81288807>] ? netlink_sendmsg+0x27a/0x2b2 Jan 16 01:00:05 WZLap kernel: [ 830.777921] [<ffffffff81100d95>] ? __pollwait+0xce/0xce Jan 16 01:00:05 WZLap kernel: [ 830.781045] [<ffffffff8125878f>] ? sock_sendmsg+0xc1/0xde Jan 16 01:00:05 WZLap kernel: [ 830.784155] [<ffffffff8125866e>] ? sock_recvmsg+0xcd/0xec Jan 16 01:00:05 WZLap kernel: [ 830.787242] [<ffffffff8132345a>] ? _cond_resched+0x7/0x1c Jan 16 01:00:05 WZLap kernel: [ 830.790333] [<ffffffff81035379>] ? should_resched+0x5/0x23 Jan 16 01:00:05 WZLap kernel: [ 830.793415] [<ffffffff8132345a>] ? _cond_resched+0x7/0x1c Jan 16 01:00:05 WZLap kernel: [ 830.796494] [<ffffffff81261bd0>] ? copy_from_user+0x18/0x30 Jan 16 01:00:05 WZLap kernel: [ 830.799579] [<ffffffff81035379>] ? should_resched+0x5/0x23 Jan 16 01:00:05 WZLap kernel: [ 830.802684] [<ffffffff81258a24>] ? __sys_sendmsg+0x1e8/0x288 Jan 16 01:00:05 WZLap kernel: [ 830.802692] [<ffffffff8132345a>] ? _cond_resched+0x7/0x1c Jan 16 01:00:05 WZLap kernel: [ 830.802696] [<ffffffff8105535c>] ? set_current_blocked+0x2d/0x43 Jan 16 01:00:05 WZLap kernel: [ 830.802701] [<ffffffff8100e292>] ? do_signal+0x526/0x5fc Jan 16 01:00:05 WZLap kernel: [ 830.802705] [<ffffffff81035379>] ? should_resched+0x5/0x23 Jan 16 01:00:05 WZLap kernel: [ 830.802709] [<ffffffff8132345a>] ? _cond_resched+0x7/0x1c Jan 16 01:00:05 WZLap kernel: [ 830.802713] [<ffffffff810155b6>] ? check_for_xstate+0x27/0x7c Jan 16 01:00:05 WZLap kernel: [ 830.802719] [<ffffffff8101589f>] ? restore_i387_xstate+0xa7/0x158 Jan 16 01:00:05 WZLap kernel: [ 830.802722] [<ffffffff81055dc7>] ? do_sigaltstack+0xaa/0x13e Jan 16 01:00:05 WZLap kernel: [ 830.802728] [<ffffffff810f43ce>] ? fget_light+0x2c/0x73 Jan 16 01:00:05 WZLap kernel: [ 830.802732] [<ffffffff8125a392>] ? sys_sendmsg+0x39/0x58 Jan 16 01:00:05 WZLap kernel: [ 830.802737] [<ffffffff81329712>] ? system_call_fastpath+0x16/0x1b Jan 16 01:00:05 WZLap kernel: [ 830.802740] ---[ end trace 8c75c33e0520ab57 ]--- Jan 16 01:00:05 WZLap kernel: [ 830.804009] ------------[ cut here ]------------ Jan 16 01:00:05 WZLap kernel: [ 830.804025] WARNING: at drivers/net/wireless/iwlwifi/iwl-agn-lib.c:1766 iwlagn_set_rxon_chain+0x107/0x1b2 [iwlagn]() Jan 16 01:00:05 WZLap kernel: [ 830.804028] Hardware name: Dell System Vostro 3750 Jan 16 01:00:05 WZLap kernel: [ 830.804029] invalid SMPS mode 0 Jan 16 01:00:05 WZLap kernel: [ 830.804031] Modules linked in: hidp hid acpi_cpufreq mperf tun cpufreq_conservative cpufreq_userspace cpufreq_stats cpufreq_powersave ipx p8023 parport_pc ppdev lp parport bnep rfcomm binfmt_misc uinput fuse nfsd nfs lockd fscache auth_rpcgss nfs_acl sunrpc ip6table_filter ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_tcpudp xt_owner iptable_filter ip_tables x_tables loop sha256_generic cbc dm_crypt kvm_intel kvm snd_hda_codec_realtek joydev snd_hda_intel nouveau i915 snd_hda_codec snd_hwdep ttm drm_kms_helper uvcvideo videodev media v4l2_compat_ioctl32 snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_midi drm snd_rawmidi snd_seq_midi_event arc4 snd_seq snd_timer snd_seq_device cryptd aes_x86_64 aes_generic iTCO_wdt snd psmouse intel_agp i2c_algo_bit i2c_i801 iwlagn dell_laptop dell_wmi ecb iTCO_vendor_support i2c_core soundcore serio_raw sparse_keymap evdev intel_gtt pcspkr mxm_wmi btusb dcdbas agpgart snd_page_alloc mac80211 wmi bluetooth cfg80211 processor vid Jan 16 01:00:05 WZLap kernel: eo ac button battery rfkill power_supply ext4 mbcache jbd2 crc16 dm_mod ums_realtek usb_storage uas sr_mod sd_mod cdrom crc_t10dif xhci_hcd ahci libahci libata scsi_mod thermal thermal_sys ehci_hcd usbcore r8169 mii [last unloaded: scsi_wait_scan] Jan 16 01:00:05 WZLap kernel: [ 830.804091] Pid: 1535, comm: wpa_supplicant Tainted: G W 3.1.6 #1 Jan 16 01:00:05 WZLap kernel: [ 830.804092] Call Trace: Jan 16 01:00:05 WZLap kernel: [ 830.804094] [<ffffffff81045573>] ? warn_slowpath_common+0x78/0x8c Jan 16 01:00:05 WZLap kernel: [ 830.804096] [<ffffffff8104561f>] ? warn_slowpath_fmt+0x45/0x4a Jan 16 01:00:05 WZLap kernel: [ 830.804103] [<ffffffffa02c994e>] ? iwl_send_cmd+0x18b/0x2ea [iwlagn] Jan 16 01:00:05 WZLap kernel: [ 830.804108] [<ffffffffa02bb398>] ? iwlagn_set_rxon_chain+0x107/0x1b2 [iwlagn] Jan 16 01:00:05 WZLap kernel: [ 830.804113] [<ffffffffa02b475a>] ? iwl_update_chain_flags+0x32/0x58 [iwlagn] Jan 16 01:00:05 WZLap kernel: [ 830.804118] [<ffffffffa02c1769>] ? iwl_power_set_mode+0xf4/0x157 [iwlagn] Jan 16 01:00:05 WZLap kernel: [ 830.804123] [<ffffffffa02c197c>] ? iwl_power_update_mode+0x1b0/0x1b9 [iwlagn] Jan 16 01:00:05 WZLap kernel: [ 830.804129] [<ffffffffa02c4d66>] ? iwlagn_mac_config+0x1f3/0x274 [iwlagn] Jan 16 01:00:05 WZLap kernel: [ 830.804131] [<ffffffff81035379>] ? should_resched+0x5/0x23 Jan 16 01:00:05 WZLap kernel: [ 830.804138] [<ffffffffa02117ae>] ? ieee80211_mgd_deauth+0x19c/0x1c0 [mac80211] Jan 16 01:00:05 WZLap kernel: [ 830.804145] [<ffffffffa024b71a>] ? __cfg80211_mlme_deauth+0x107/0x116 [cfg80211] Jan 16 01:00:05 WZLap kernel: [ 830.804147] [<ffffffff81323ff2>] ? schedule_hrtimeout_range_clock+0xc8/0x103 Jan 16 01:00:05 WZLap kernel: [ 830.804149] [<ffffffff81035379>] ? should_resched+0x5/0x23 Jan 16 01:00:05 WZLap kernel: [ 830.804155] [<ffffffffa024b792>] ? cfg80211_mlme_deauth+0x69/0x82 [cfg80211] Jan 16 01:00:05 WZLap kernel: [ 830.804157] [<ffffffff8132345a>] ? _cond_resched+0x7/0x1c Jan 16 01:00:05 WZLap kernel: [ 830.804163] [<ffffffffa02425e5>] ? nl80211_deauthenticate+0xbc/0xc7 [cfg80211] Jan 16 01:00:05 WZLap kernel: [ 830.804169] [<ffffffffa02445b0>] ? nl80211_pre_doit+0x85/0xfb [cfg80211] Jan 16 01:00:05 WZLap kernel: [ 830.804174] [<ffffffff81288f61>] ? genl_rcv_msg+0x1cb/0x1f9 Jan 16 01:00:05 WZLap kernel: [ 830.804177] [<ffffffff81288d96>] ? genl_rcv+0x28/0x28 Jan 16 01:00:05 WZLap kernel: [ 830.804179] [<ffffffff812889f4>] ? netlink_rcv_skb+0x36/0x7a Jan 16 01:00:05 WZLap kernel: [ 830.804181] [<ffffffff81288d8d>] ? genl_rcv+0x1f/0x28 Jan 16 01:00:05 WZLap kernel: [ 830.804183] [<ffffffff81288525>] ? netlink_unicast+0xe6/0x14e Jan 16 01:00:05 WZLap kernel: [ 830.804185] [<ffffffff81288807>] ? netlink_sendmsg+0x27a/0x2b2 Jan 16 01:00:05 WZLap kernel: [ 830.804187] [<ffffffff81100d95>] ? __pollwait+0xce/0xce Jan 16 01:00:05 WZLap kernel: [ 830.804189] [<ffffffff8125878f>] ? sock_sendmsg+0xc1/0xde Jan 16 01:00:05 WZLap kernel: [ 830.804191] [<ffffffff8125866e>] ? sock_recvmsg+0xcd/0xec Jan 16 01:00:05 WZLap kernel: [ 830.804193] [<ffffffff8132345a>] ? _cond_resched+0x7/0x1c Jan 16 01:00:05 WZLap kernel: [ 830.804195] [<ffffffff81035379>] ? should_resched+0x5/0x23 Jan 16 01:00:05 WZLap kernel: [ 830.804197] [<ffffffff8132345a>] ? _cond_resched+0x7/0x1c Jan 16 01:00:05 WZLap kernel: [ 830.804199] [<ffffffff81261bd0>] ? copy_from_user+0x18/0x30 Jan 16 01:00:05 WZLap kernel: [ 830.804201] [<ffffffff81035379>] ? should_resched+0x5/0x23 Jan 16 01:00:05 WZLap kernel: [ 830.804203] [<ffffffff81258a24>] ? __sys_sendmsg+0x1e8/0x288 Jan 16 01:00:05 WZLap kernel: [ 830.804205] [<ffffffff8132345a>] ? _cond_resched+0x7/0x1c Jan 16 01:00:05 WZLap kernel: [ 830.804207] [<ffffffff8105535c>] ? set_current_blocked+0x2d/0x43 Jan 16 01:00:05 WZLap kernel: [ 830.804209] [<ffffffff8100e292>] ? do_signal+0x526/0x5fc Jan 16 01:00:05 WZLap kernel: [ 830.804211] [<ffffffff81035379>] ? should_resched+0x5/0x23 Jan 16 01:00:05 WZLap kernel: [ 830.804213] [<ffffffff8132345a>] ? _cond_resched+0x7/0x1c Jan 16 01:00:05 WZLap kernel: [ 830.804215] [<ffffffff810155b6>] ? check_for_xstate+0x27/0x7c Jan 16 01:00:05 WZLap kernel: [ 830.804217] [<ffffffff8101589f>] ? restore_i387_xstate+0xa7/0x158 Jan 16 01:00:05 WZLap kernel: [ 830.804219] [<ffffffff81055dc7>] ? do_sigaltstack+0xaa/0x13e Jan 16 01:00:05 WZLap kernel: [ 830.804221] [<ffffffff810f43ce>] ? fget_light+0x2c/0x73 Jan 16 01:00:05 WZLap kernel: [ 830.804223] [<ffffffff8125a392>] ? sys_sendmsg+0x39/0x58 Jan 16 01:00:05 WZLap kernel: [ 830.804226] [<ffffffff81329712>] ? system_call_fastpath+0x16/0x1b Jan 16 01:00:05 WZLap kernel: [ 830.804227] ---[ end trace 8c75c33e0520ab58 ]--- Jan 16 01:00:05 WZLap kernel: [ 830.804228] ------------[ cut here ]------------ Jan 16 01:00:05 WZLap kernel: [ 830.804233] WARNING: at drivers/net/wireless/iwlwifi/iwl-agn-lib.c:1766 iwlagn_set_rxon_chain+0x107/0x1b2 [iwlagn]() Jan 16 01:00:05 WZLap kernel: [ 830.804234] Hardware name: Dell System Vostro 3750 Jan 16 01:00:05 WZLap kernel: [ 830.804235] invalid SMPS mode 0 Jan 16 01:00:05 WZLap kernel: [ 830.804236] Modules linked in: hidp hid acpi_cpufreq mperf tun cpufreq_conservative cpufreq_userspace cpufreq_stats cpufreq_powersave ipx p8023 parport_pc ppdev lp parport bnep rfcomm binfmt_misc uinput fuse nfsd nfs lockd fscache auth_rpcgss nfs_acl sunrpc ip6table_filter ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_tcpudp xt_owner iptable_filter ip_tables x_tables loop sha256_generic cbc dm_crypt kvm_intel kvm snd_hda_codec_realtek joydev snd_hda_intel nouveau i915 snd_hda_codec snd_hwdep ttm drm_kms_helper uvcvideo videodev media v4l2_compat_ioctl32 snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_midi drm snd_rawmidi snd_seq_midi_event arc4 snd_seq snd_timer snd_seq_device cryptd aes_x86_64 aes_generic iTCO_wdt snd psmouse intel_agp i2c_algo_bit i2c_i801 iwlagn dell_laptop dell_wmi ecb iTCO_vendor_support i2c_core soundcore serio_raw sparse_keymap evdev intel_gtt pcspkr mxm_wmi btusb dcdbas agpgart snd_page_alloc mac80211 wmi bluetooth cfg80211 processor vid Jan 16 01:00:05 WZLap kernel: eo ac button battery rfkill power_supply ext4 mbcache jbd2 crc16 dm_mod ums_realtek usb_storage uas sr_mod sd_mod cdrom crc_t10dif xhci_hcd ahci libahci libata scsi_mod thermal thermal_sys ehci_hcd usbcore r8169 mii [last unloaded: scsi_wait_scan] Jan 16 01:00:05 WZLap kernel: [ 830.804266] Pid: 1535, comm: wpa_supplicant Tainted: G W 3.1.6 #1 Jan 16 01:00:05 WZLap kernel: [ 830.804267] Call Trace: Jan 16 01:00:05 WZLap kernel: [ 830.804268] [<ffffffff81045573>] ? warn_slowpath_common+0x78/0x8c Jan 16 01:00:05 WZLap kernel: [ 830.804270] [<ffffffff8104561f>] ? warn_slowpath_fmt+0x45/0x4a Jan 16 01:00:05 WZLap kernel: [ 830.804276] [<ffffffffa02c994e>] ? iwl_send_cmd+0x18b/0x2ea [iwlagn] Jan 16 01:00:05 WZLap kernel: [ 830.804281] [<ffffffffa02bb398>] ? iwlagn_set_rxon_chain+0x107/0x1b2 [iwlagn] Jan 16 01:00:05 WZLap kernel: [ 830.804285] [<ffffffffa02b475a>] ? iwl_update_chain_flags+0x32/0x58 [iwlagn] Jan 16 01:00:05 WZLap kernel: [ 830.804291] [<ffffffffa02c1769>] ? iwl_power_set_mode+0xf4/0x157 [iwlagn] Jan 16 01:00:05 WZLap kernel: [ 830.804295] [<ffffffffa02c197c>] ? iwl_power_update_mode+0x1b0/0x1b9 [iwlagn] Jan 16 01:00:05 WZLap kernel: [ 830.804301] [<ffffffffa02c4d66>] ? iwlagn_mac_config+0x1f3/0x274 [iwlagn] Jan 16 01:00:05 WZLap kernel: [ 830.804303] [<ffffffff81035379>] ? should_resched+0x5/0x23 Jan 16 01:00:05 WZLap kernel: [ 830.804309] [<ffffffffa02117ae>] ? ieee80211_mgd_deauth+0x19c/0x1c0 [mac80211] Jan 16 01:00:05 WZLap kernel: [ 830.804315] [<ffffffffa024b71a>] ? __cfg80211_mlme_deauth+0x107/0x116 [cfg80211] Jan 16 01:00:05 WZLap kernel: [ 830.804317] [<ffffffff81323ff2>] ? schedule_hrtimeout_range_clock+0xc8/0x103 Jan 16 01:00:05 WZLap kernel: [ 830.804319] [<ffffffff81035379>] ? should_resched+0x5/0x23 Jan 16 01:00:05 WZLap kernel: [ 830.804325] [<ffffffffa024b792>] ? cfg80211_mlme_deauth+0x69/0x82 [cfg80211] Jan 16 01:00:05 WZLap kernel: [ 830.804327] [<ffffffff8132345a>] ? _cond_resched+0x7/0x1c Jan 16 01:00:05 WZLap kernel: [ 830.804332] [<ffffffffa02425e5>] ? nl80211_deauthenticate+0xbc/0xc7 [cfg80211] Jan 16 01:00:05 WZLap kernel: [ 830.804338] [<ffffffffa02445b0>] ? nl80211_pre_doit+0x85/0xfb [cfg80211] Jan 16 01:00:05 WZLap kernel: [ 830.804343] [<ffffffff81288f61>] ? genl_rcv_msg+0x1cb/0x1f9 Jan 16 01:00:05 WZLap kernel: [ 830.804345] [<ffffffff81288d96>] ? genl_rcv+0x28/0x28 Jan 16 01:00:05 WZLap kernel: [ 830.804347] [<ffffffff812889f4>] ? netlink_rcv_skb+0x36/0x7a Jan 16 01:00:05 WZLap kernel: [ 830.804349] [<ffffffff81288d8d>] ? genl_rcv+0x1f/0x28 Jan 16 01:00:05 WZLap kernel: [ 830.804352] [<ffffffff81288525>] ? netlink_unicast+0xe6/0x14e Jan 16 01:00:05 WZLap kernel: [ 830.804354] [<ffffffff81288807>] ? netlink_sendmsg+0x27a/0x2b2 Jan 16 01:00:05 WZLap kernel: [ 830.804355] [<ffffffff81100d95>] ? __pollwait+0xce/0xce Jan 16 01:00:05 WZLap kernel: [ 830.804357] [<ffffffff8125878f>] ? sock_sendmsg+0xc1/0xde Jan 16 01:00:05 WZLap kernel: [ 830.804359] [<ffffffff8125866e>] ? sock_recvmsg+0xcd/0xec Jan 16 01:00:05 WZLap kernel: [ 830.804362] [<ffffffff8132345a>] ? _cond_resched+0x7/0x1c Jan 16 01:00:05 WZLap kernel: [ 830.804364] [<ffffffff81035379>] ? should_resched+0x5/0x23 Jan 16 01:00:05 WZLap kernel: [ 830.804366] [<ffffffff8132345a>] ? _cond_resched+0x7/0x1c Jan 16 01:00:05 WZLap kernel: [ 830.804368] [<ffffffff81261bd0>] ? copy_from_user+0x18/0x30 Jan 16 01:00:05 WZLap kernel: [ 830.804370] [<ffffffff81035379>] ? should_resched+0x5/0x23 Jan 16 01:00:05 WZLap kernel: [ 830.804372] [<ffffffff81258a24>] ? __sys_sendmsg+0x1e8/0x288 Jan 16 01:00:05 WZLap kernel: [ 830.804374] [<ffffffff8132345a>] ? _cond_resched+0x7/0x1c Jan 16 01:00:05 WZLap kernel: [ 830.804375] [<ffffffff8105535c>] ? set_current_blocked+0x2d/0x43 Jan 16 01:00:05 WZLap kernel: [ 830.804377] [<ffffffff8100e292>] ? do_signal+0x526/0x5fc Jan 16 01:00:05 WZLap kernel: [ 830.804380] [<ffffffff81035379>] ? should_resched+0x5/0x23 Jan 16 01:00:05 WZLap kernel: [ 830.804381] [<ffffffff8132345a>] ? _cond_resched+0x7/0x1c Jan 16 01:00:05 WZLap kernel: [ 830.804383] [<ffffffff810155b6>] ? check_for_xstate+0x27/0x7c Jan 16 01:00:05 WZLap kernel: [ 830.804386] [<ffffffff8101589f>] ? restore_i387_xstate+0xa7/0x158 Jan 16 01:00:05 WZLap kernel: [ 830.804387] [<ffffffff81055dc7>] ? do_sigaltstack+0xaa/0x13e Jan 16 01:00:05 WZLap kernel: [ 830.804390] [<ffffffff810f43ce>] ? fget_light+0x2c/0x73 Jan 16 01:00:05 WZLap kernel: [ 830.804392] [<ffffffff8125a392>] ? sys_sendmsg+0x39/0x58 Jan 16 01:00:05 WZLap kernel: [ 830.804394] [<ffffffff81329712>] ? system_call_fastpath+0x16/0x1b Jan 16 01:00:05 WZLap kernel: [ 830.804395] ---[ end trace 8c75c33e0520ab59 ]--- Jan 16 01:00:05 WZLap kernel: [ 830.804416] cfg80211: Calling CRDA to update world regulatory domain Jan 16 01:00:05 WZLap kernel: [ 831.240157] ------------[ cut here ]------------ Jan 16 01:00:05 WZLap kernel: [ 831.242680] WARNING: at drivers/net/wireless/iwlwifi/iwl-agn-lib.c:1766 iwlagn_set_rxon_chain+0x107/0x1b2 [iwlagn]() Jan 16 01:00:05 WZLap kernel: [ 831.245165] Hardware name: Dell System Vostro 3750 Jan 16 01:00:05 WZLap kernel: [ 831.247535] invalid SMPS mode 0 Jan 16 01:00:05 WZLap kernel: [ 831.247568] Modules linked in: hidp hid acpi_cpufreq mperf tun cpufreq_conservative cpufreq_userspace cpufreq_stats cpufreq_powersave ipx p8023 parport_pc ppdev lp parport bnep rfcomm binfmt_misc uinput fuse nfsd nfs lockd fscache auth_rpcgss nfs_acl sunrpc ip6table_filter ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_tcpudp xt_owner iptable_filter ip_tables x_tables loop sha256_generic cbc dm_crypt kvm_intel kvm snd_hda_codec_realtek joydev snd_hda_intel nouveau i915 snd_hda_codec snd_hwdep ttm drm_kms_helper uvcvideo videodev media v4l2_compat_ioctl32 snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_midi drm snd_rawmidi snd_seq_midi_event arc4 snd_seq snd_timer snd_seq_device cryptd aes_x86_64 aes_generic iTCO_wdt snd psmouse intel_agp i2c_algo_bit i2c_i801 iwlagn dell_laptop dell_wmi ecb iTCO_vendor_support i2c_core soundcore serio_raw sparse_keymap evdev intel_gtt pcspkr mxm_wmi btusb dcdbas agpgart snd_page_alloc mac80211 wmi bluetooth cfg80211 processor vid Jan 16 01:00:05 WZLap kernel: eo ac button battery rfkill power_supply ext4 mbcache jbd2 crc16 dm_mod ums_realtek usb_storage uas sr_mod sd_mod cdrom crc_t10dif xhci_hcd ahci libahci libata scsi_mod thermal thermal_sys ehci_hcd usbcore r8169 mii [last unloaded: scsi_wait_scan] Jan 16 01:00:05 WZLap kernel: [ 831.249871] Pid: 1521, comm: NetworkManager Tainted: G W 3.1.6 #1 Jan 16 01:00:05 WZLap kernel: [ 831.249874] Call Trace: Jan 16 01:00:05 WZLap kernel: [ 831.249883] [<ffffffff81045573>] ? warn_slowpath_common+0x78/0x8c Jan 16 01:00:05 WZLap kernel: [ 831.249889] [<ffffffff8104561f>] ? warn_slowpath_fmt+0x45/0x4a Jan 16 01:00:05 WZLap kernel: [ 831.249898] [<ffffffff81035379>] ? should_resched+0x5/0x23 Jan 16 01:00:05 WZLap kernel: [ 831.249910] [<ffffffffa02bb398>] ? iwlagn_set_rxon_chain+0x107/0x1b2 [iwlagn] Jan 16 01:00:05 WZLap kernel: [ 831.249928] [<ffffffff81324754>] ? _raw_spin_lock_irq+0xa/0x14 Jan 16 01:00:05 WZLap kernel: [ 831.249932] [<ffffffff81035379>] ? should_resched+0x5/0x23 Jan 16 01:00:05 WZLap kernel: [ 831.249939] [<ffffffffa02bfc28>] ? iwl_teardown_interface+0x4a/0x7e [iwlagn] Jan 16 01:00:05 WZLap kernel: [ 831.249946] [<ffffffffa02c0505>] ? iwl_mac_remove_interface+0x4e/0x5e [iwlagn] Jan 16 01:00:05 WZLap kernel: [ 831.249956] [<ffffffffa0214539>] ? ieee80211_do_stop+0x319/0x46a [mac80211] Jan 16 01:00:05 WZLap kernel: [ 831.249961] [<ffffffff8104a997>] ? _local_bh_enable_ip.isra.11+0x1e/0x88 Jan 16 01:00:05 WZLap kernel: [ 831.249968] [<ffffffffa021469d>] ? ieee80211_stop+0x13/0x17 [mac80211] Jan 16 01:00:05 WZLap kernel: [ 831.249972] [<ffffffff81266578>] ? __dev_close_many+0x84/0xb0 Jan 16 01:00:05 WZLap kernel: [ 831.249975] [<ffffffff812665d4>] ? __dev_close+0x30/0x47 Jan 16 01:00:05 WZLap kernel: [ 831.249978] [<ffffffff8126a883>] ? dev_set_rx_mode+0x1d/0x29 Jan 16 01:00:05 WZLap kernel: [ 831.249982] [<ffffffff8126ab0e>] ? __dev_change_flags+0x9d/0x118 Jan 16 01:00:05 WZLap kernel: [ 831.249985] [<ffffffff8126abec>] ? dev_change_flags+0x12/0x42 Jan 16 01:00:05 WZLap kernel: [ 831.249988] [<ffffffff81274741>] ? do_setlink+0x287/0x6f8 Jan 16 01:00:05 WZLap kernel: [ 831.249994] [<ffffffff810e56f7>] ? kmem_cache_alloc_node_trace+0x96/0x10a Jan 16 01:00:05 WZLap kernel: [ 831.249997] [<ffffffff81274f33>] ? __rtnl_unlock+0xc/0xc Jan 16 01:00:05 WZLap kernel: [ 831.250000] [<ffffffff81274dfb>] ? rtnl_setlink+0xc4/0xe6 Jan 16 01:00:05 WZLap kernel: [ 831.250004] [<ffffffff812889f4>] ? netlink_rcv_skb+0x36/0x7a Jan 16 01:00:05 WZLap kernel: [ 831.250008] [<ffffffff81274376>] ? rtnetlink_rcv+0x1f/0x28 Jan 16 01:00:05 WZLap kernel: [ 831.250011] [<ffffffff81288525>] ? netlink_unicast+0xe6/0x14e Jan 16 01:00:05 WZLap kernel: [ 831.250014] [<ffffffff81288807>] ? netlink_sendmsg+0x27a/0x2b2 Jan 16 01:00:05 WZLap kernel: [ 831.250018] [<ffffffff8125878f>] ? sock_sendmsg+0xc1/0xde Jan 16 01:00:05 WZLap kernel: [ 831.250021] [<ffffffff8125866e>] ? sock_recvmsg+0xcd/0xec Jan 16 01:00:05 WZLap kernel: [ 831.250025] [<ffffffff8125878f>] ? sock_sendmsg+0xc1/0xde Jan 16 01:00:05 WZLap kernel: [ 831.250028] [<ffffffff8132345a>] ? _cond_resched+0x7/0x1c Jan 16 01:00:05 WZLap kernel: [ 831.250031] [<ffffffff81035379>] ? should_resched+0x5/0x23 Jan 16 01:00:05 WZLap kernel: [ 831.250035] [<ffffffff8132345a>] ? _cond_resched+0x7/0x1c Jan 16 01:00:05 WZLap kernel: [ 831.250038] [<ffffffff81261bd0>] ? copy_from_user+0x18/0x30 Jan 16 01:00:05 WZLap kernel: [ 831.250041] [<ffffffff81035379>] ? should_resched+0x5/0x23 Jan 16 01:00:05 WZLap kernel: [ 831.250044] [<ffffffff81258a24>] ? __sys_sendmsg+0x1e8/0x288 Jan 16 01:00:05 WZLap kernel: [ 831.250048] [<ffffffff810f4401>] ? fget_light+0x5f/0x73 Jan 16 01:00:05 WZLap kernel: [ 831.250051] [<ffffffff8125a06d>] ? sys_sendto+0x108/0x137 Jan 16 01:00:05 WZLap kernel: [ 831.250054] [<ffffffff810f4401>] ? fget_light+0x5f/0x73 Jan 16 01:00:05 WZLap kernel: [ 831.250057] [<ffffffff8125a392>] ? sys_sendmsg+0x39/0x58 Jan 16 01:00:05 WZLap kernel: [ 831.250061] [<ffffffff81329712>] ? system_call_fastpath+0x16/0x1b Jan 16 01:00:05 WZLap kernel: [ 831.250063] ---[ end trace 8c75c33e0520ab5a ]--- Jan 16 01:00:07 WZLap kernel: Kernel logging (proc) stopped.
The same problem happens also in the newest 3.2.1 kernel: Jan 19 13:15:40 WZLap shutdown[3142]: shutting down for system halt Jan 19 13:15:41 WZLap kernel: [ 461.071677] ------------[ cut here ]------------ Jan 19 13:15:41 WZLap kernel: [ 461.073790] WARNING: at drivers/net/wireless/iwlwifi/iwl-agn-lib.c:834 iwlagn_set_rxon_chain+0x101/0x1ac [iwlwifi]() Jan 19 13:15:41 WZLap kernel: [ 461.076001] Hardware name: Dell System Vostro 3750 Jan 19 13:15:41 WZLap kernel: [ 461.078193] invalid SMPS mode 0 Jan 19 13:15:41 WZLap kernel: [ 461.078223] Modules linked in: hidp hid tun acpi_cpufreq mperf cpufreq_conservative cpufreq_userspace cpufreq_stats cpufreq_powersave ipx p8023 parport_pc ppdev lp parport rfcomm bnep binfmt_misc uinput fuse nfsd nfs lockd fscache auth_rpcgss nfs_acl sunrpc ip6table_filter ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_tcpudp xt_owner iptable_filter ip_tables x_tables loop sha256_generic cryptd aes_x86_64 aes_generic cbc dm_crypt kvm_intel kvm snd_hda_codec_realtek uvcvideo snd_hda_intel snd_hda_codec videodev snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm media arc4 snd_seq_midi snd_rawmidi v4l2_compat_ioctl32 nouveau i915 ttm drm_kms_helper drm iwlwifi i2c_i801 snd_seq_midi_event i2c_algo_bit i2c_core intel_agp mac80211 snd_seq iTCO_wdt dell_laptop dell_wmi sparse_keymap evdev iTCO_vendor_support snd_timer snd_seq_device intel_gtt agpgart mxm_wmi dcdbas btusb psmouse serio_raw bluetooth cfg80211 pcspkr processor video button ac battery snd soundcore snd_page Jan 19 13:15:41 WZLap kernel: _alloc wmi rfkill power_supply ext4 mbcache jbd2 crc16 dm_mod ums_realtek usb_storage uas sr_mod sd_mod cdrom crc_t10dif xhci_hcd ahci libahci libata scsi_mod ehci_hcd usbcore r8169 usb_common mii thermal thermal_sys [last unloaded: scsi_wait_scan] Jan 19 13:15:41 WZLap kernel: [ 461.099695] Pid: 1575, comm: wpa_supplicant Not tainted 3.2.1 #2 Jan 19 13:15:41 WZLap kernel: [ 461.102598] Call Trace: Jan 19 13:15:41 WZLap kernel: [ 461.105521] [<ffffffff810455e7>] ? warn_slowpath_common+0x78/0x8c Jan 19 13:15:41 WZLap kernel: [ 461.108480] [<ffffffff81045693>] ? warn_slowpath_fmt+0x45/0x4a Jan 19 13:15:41 WZLap kernel: [ 461.111394] [<ffffffffa0300770>] ? iwlagn_set_rxon_chain+0x101/0x1ac [iwlwifi] Jan 19 13:15:41 WZLap kernel: [ 461.114343] [<ffffffff81035389>] ? should_resched+0x5/0x23 Jan 19 13:15:41 WZLap kernel: [ 461.117295] [<ffffffffa030a4a5>] ? iwlagn_bss_info_changed+0x1cf/0x465 [iwlwifi] Jan 19 13:15:41 WZLap kernel: [ 461.120249] [<ffffffffa02a413e>] ? __sta_info_destroy+0x28b/0x2d3 [mac80211] Jan 19 13:15:41 WZLap kernel: [ 461.123161] [<ffffffff81035389>] ? should_resched+0x5/0x23 Jan 19 13:15:41 WZLap kernel: [ 461.126088] [<ffffffffa02afc41>] ? __ieee80211_recalc_idle+0xef/0x199 [mac80211] Jan 19 13:15:41 WZLap kernel: [ 461.129027] [<ffffffff81035389>] ? should_resched+0x5/0x23 Jan 19 13:15:41 WZLap kernel: [ 461.131979] [<ffffffffa02b0807>] ? ieee80211_recalc_idle+0x1e/0x42 [mac80211] Jan 19 13:15:41 WZLap kernel: [ 461.134870] [<ffffffffa02ad277>] ? ieee80211_mgd_deauth+0x19e/0x1c2 [mac80211] Jan 19 13:15:41 WZLap kernel: [ 461.137755] [<ffffffff81060996>] ? __remove_hrtimer+0x2a/0x82 Jan 19 13:15:41 WZLap kernel: [ 461.140633] [<ffffffffa01cd525>] ? __cfg80211_mlme_deauth+0x107/0x116 [cfg80211] Jan 19 13:15:41 WZLap kernel: [ 461.143546] [<ffffffff81060cc5>] ? hrtimer_cancel+0xc/0x16 Jan 19 13:15:41 WZLap kernel: [ 461.146240] [<ffffffff81035389>] ? should_resched+0x5/0x23 Jan 19 13:15:41 WZLap kernel: [ 461.149131] [<ffffffffa01cd59d>] ? cfg80211_mlme_deauth+0x69/0x82 [cfg80211] Jan 19 13:15:41 WZLap kernel: [ 461.149136] [<ffffffff81329632>] ? _cond_resched+0x7/0x1c Jan 19 13:15:41 WZLap kernel: [ 461.149147] [<ffffffffa01c3c08>] ? nl80211_deauthenticate+0xbc/0xc7 [cfg80211] Jan 19 13:15:41 WZLap kernel: [ 461.149156] [<ffffffffa01c5b97>] ? nl80211_pre_doit+0x85/0xfb [cfg80211] Jan 19 13:15:41 WZLap kernel: [ 461.149168] [<ffffffff8128ec31>] ? genl_rcv_msg+0x1cb/0x1f9 Jan 19 13:15:41 WZLap kernel: [ 461.149173] [<ffffffff8128ea66>] ? genl_rcv+0x28/0x28 Jan 19 13:15:41 WZLap kernel: [ 461.149178] [<ffffffff8128e6c5>] ? netlink_rcv_skb+0x36/0x7a Jan 19 13:15:41 WZLap kernel: [ 461.149183] [<ffffffff8128ea5d>] ? genl_rcv+0x1f/0x28 Jan 19 13:15:41 WZLap kernel: [ 461.149188] [<ffffffff8128e271>] ? netlink_unicast+0xe6/0x14e Jan 19 13:15:41 WZLap kernel: [ 461.149192] [<ffffffff8128e4d5>] ? netlink_sendmsg+0x1fc/0x237 Jan 19 13:15:41 WZLap kernel: [ 461.149199] [<ffffffff8125e32f>] ? sock_sendmsg+0xc1/0xde Jan 19 13:15:41 WZLap kernel: [ 461.149203] [<ffffffff8125e20e>] ? sock_recvmsg+0xcd/0xec Jan 19 13:15:41 WZLap kernel: [ 461.149208] [<ffffffff81329632>] ? _cond_resched+0x7/0x1c Jan 19 13:15:41 WZLap kernel: [ 461.149213] [<ffffffff81035389>] ? should_resched+0x5/0x23 Jan 19 13:15:41 WZLap kernel: [ 461.149217] [<ffffffff81329632>] ? _cond_resched+0x7/0x1c Jan 19 13:15:41 WZLap kernel: [ 461.149222] [<ffffffff81267674>] ? copy_from_user+0x18/0x30 Jan 19 13:15:41 WZLap kernel: [ 461.149228] [<ffffffff81035389>] ? should_resched+0x5/0x23 Jan 19 13:15:41 WZLap kernel: [ 461.149232] [<ffffffff8125e5c4>] ? __sys_sendmsg+0x1e8/0x288 Jan 19 13:15:41 WZLap kernel: [ 461.149237] [<ffffffff81329632>] ? _cond_resched+0x7/0x1c Jan 19 13:15:41 WZLap kernel: [ 461.149243] [<ffffffff810549b7>] ? set_current_blocked+0x2d/0x43 Jan 19 13:15:41 WZLap kernel: [ 461.149249] [<ffffffff8100e29a>] ? do_signal+0x526/0x5fc Jan 19 13:15:41 WZLap kernel: [ 461.149254] [<ffffffff81035389>] ? should_resched+0x5/0x23 Jan 19 13:15:41 WZLap kernel: [ 461.149258] [<ffffffff81329632>] ? _cond_resched+0x7/0x1c Jan 19 13:15:41 WZLap kernel: [ 461.149264] [<ffffffff810158ce>] ? check_for_xstate+0x27/0x7c Jan 19 13:15:41 WZLap kernel: [ 461.149269] [<ffffffff81015bb7>] ? restore_i387_xstate+0xa7/0x158 Jan 19 13:15:41 WZLap kernel: [ 461.149274] [<ffffffff81055422>] ? do_sigaltstack+0xaa/0x13e Jan 19 13:15:41 WZLap kernel: [ 461.149280] [<ffffffff810f7837>] ? fget_light+0x2c/0x73 Jan 19 13:15:41 WZLap kernel: [ 461.149285] [<ffffffff8125ff2e>] ? sys_sendmsg+0x39/0x58 Jan 19 13:15:41 WZLap kernel: [ 461.149290] [<ffffffff8132f8d2>] ? system_call_fastpath+0x16/0x1b Jan 19 13:15:41 WZLap kernel: [ 461.149294] ---[ end trace 8c08ef5d87bc0138 ]--- Jan 19 13:15:42 WZLap kernel: [ 461.150502] ------------[ cut here ]------------ Jan 19 13:15:42 WZLap kernel: [ 461.150522] WARNING: at drivers/net/wireless/iwlwifi/iwl-agn-lib.c:834 iwlagn_set_rxon_chain+0x101/0x1ac [iwlwifi]() Jan 19 13:15:42 WZLap kernel: [ 461.150523] Hardware name: Dell System Vostro 3750 Jan 19 13:15:42 WZLap kernel: [ 461.150524] invalid SMPS mode 0 Jan 19 13:15:42 WZLap kernel: [ 461.150525] Modules linked in: hidp hid tun acpi_cpufreq mperf cpufreq_conservative cpufreq_userspace cpufreq_stats cpufreq_powersave ipx p8023 parport_pc ppdev lp parport rfcomm bnep binfmt_misc uinput fuse nfsd nfs lockd fscache auth_rpcgss nfs_acl sunrpc ip6table_filter ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_tcpudp xt_owner iptable_filter ip_tables x_tables loop sha256_generic cryptd aes_x86_64 aes_generic cbc dm_crypt kvm_intel kvm snd_hda_codec_realtek uvcvideo snd_hda_intel snd_hda_codec videodev snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm media arc4 snd_seq_midi snd_rawmidi v4l2_compat_ioctl32 nouveau i915 ttm drm_kms_helper drm iwlwifi i2c_i801 snd_seq_midi_event i2c_algo_bit i2c_core intel_agp mac80211 snd_seq iTCO_wdt dell_laptop dell_wmi sparse_keymap evdev iTCO_vendor_support snd_timer snd_seq_device intel_gtt agpgart mxm_wmi dcdbas btusb psmouse serio_raw bluetooth cfg80211 pcspkr processor video button ac battery snd soundcore snd_page Jan 19 13:15:42 WZLap kernel: _alloc wmi rfkill power_supply ext4 mbcache jbd2 crc16 dm_mod ums_realtek usb_storage uas sr_mod sd_mod cdrom crc_t10dif xhci_hcd ahci libahci libata scsi_mod ehci_hcd usbcore r8169 usb_common mii thermal thermal_sys [last unloaded: scsi_wait_scan] Jan 19 13:15:42 WZLap kernel: [ 461.150558] Pid: 1575, comm: wpa_supplicant Tainted: G W 3.2.1 #2 Jan 19 13:15:42 WZLap kernel: [ 461.150559] Call Trace: Jan 19 13:15:42 WZLap kernel: [ 461.150561] [<ffffffff810455e7>] ? warn_slowpath_common+0x78/0x8c Jan 19 13:15:42 WZLap kernel: [ 461.150563] [<ffffffff81045693>] ? warn_slowpath_fmt+0x45/0x4a Jan 19 13:15:42 WZLap kernel: [ 461.150570] [<ffffffffa03103ce>] ? iwl_trans_pcie_send_cmd+0x176/0x30a [iwlwifi] Jan 19 13:15:42 WZLap kernel: [ 461.150575] [<ffffffffa0300770>] ? iwlagn_set_rxon_chain+0x101/0x1ac [iwlwifi] Jan 19 13:15:42 WZLap kernel: [ 461.150579] [<ffffffffa02fa602>] ? iwl_update_chain_flags+0x36/0x5c [iwlwifi] Jan 19 13:15:42 WZLap kernel: [ 461.150584] [<ffffffffa03080db>] ? iwl_power_set_mode+0xf1/0x15b [iwlwifi] Jan 19 13:15:42 WZLap kernel: [ 461.150588] [<ffffffffa030830a>] ? iwl_power_update_mode+0x1c5/0x1ce [iwlwifi] Jan 19 13:15:42 WZLap kernel: [ 461.150593] [<ffffffffa030a24a>] ? iwlagn_mac_config+0x1ef/0x27b [iwlwifi] Jan 19 13:15:42 WZLap kernel: [ 461.150596] [<ffffffff81035389>] ? should_resched+0x5/0x23 Jan 19 13:15:42 WZLap kernel: [ 461.150602] [<ffffffffa02ad277>] ? ieee80211_mgd_deauth+0x19e/0x1c2 [mac80211] Jan 19 13:15:42 WZLap kernel: [ 461.150605] [<ffffffff81060996>] ? __remove_hrtimer+0x2a/0x82 Jan 19 13:15:42 WZLap kernel: [ 461.150611] [<ffffffffa01cd525>] ? __cfg80211_mlme_deauth+0x107/0x116 [cfg80211] Jan 19 13:15:42 WZLap kernel: [ 461.150614] [<ffffffff81060cc5>] ? hrtimer_cancel+0xc/0x16 Jan 19 13:15:42 WZLap kernel: [ 461.150616] [<ffffffff81035389>] ? should_resched+0x5/0x23 Jan 19 13:15:42 WZLap kernel: [ 461.150621] [<ffffffffa01cd59d>] ? cfg80211_mlme_deauth+0x69/0x82 [cfg80211] Jan 19 13:15:42 WZLap kernel: [ 461.150623] [<ffffffff81329632>] ? _cond_resched+0x7/0x1c Jan 19 13:15:42 WZLap kernel: [ 461.150629] [<ffffffffa01c3c08>] ? nl80211_deauthenticate+0xbc/0xc7 [cfg80211] Jan 19 13:15:42 WZLap kernel: [ 461.150634] [<ffffffffa01c5b97>] ? nl80211_pre_doit+0x85/0xfb [cfg80211] Jan 19 13:15:42 WZLap kernel: [ 461.150639] [<ffffffff8128ec31>] ? genl_rcv_msg+0x1cb/0x1f9 Jan 19 13:15:42 WZLap kernel: [ 461.150641] [<ffffffff8128ea66>] ? genl_rcv+0x28/0x28 Jan 19 13:15:42 WZLap kernel: [ 461.150642] [<ffffffff8128e6c5>] ? netlink_rcv_skb+0x36/0x7a Jan 19 13:15:42 WZLap kernel: [ 461.150644] [<ffffffff8128ea5d>] ? genl_rcv+0x1f/0x28 Jan 19 13:15:42 WZLap kernel: [ 461.150645] [<ffffffff8128e271>] ? netlink_unicast+0xe6/0x14e Jan 19 13:15:42 WZLap kernel: [ 461.150647] [<ffffffff8128e4d5>] ? netlink_sendmsg+0x1fc/0x237 Jan 19 13:15:42 WZLap kernel: [ 461.150649] [<ffffffff8125e32f>] ? sock_sendmsg+0xc1/0xde Jan 19 13:15:42 WZLap kernel: [ 461.150650] [<ffffffff8125e20e>] ? sock_recvmsg+0xcd/0xec Jan 19 13:15:42 WZLap kernel: [ 461.150652] [<ffffffff81329632>] ? _cond_resched+0x7/0x1c Jan 19 13:15:42 WZLap kernel: [ 461.150654] [<ffffffff81035389>] ? should_resched+0x5/0x23 Jan 19 13:15:42 WZLap kernel: [ 461.150656] [<ffffffff81329632>] ? _cond_resched+0x7/0x1c Jan 19 13:15:42 WZLap kernel: [ 461.150657] [<ffffffff81267674>] ? copy_from_user+0x18/0x30 Jan 19 13:15:42 WZLap kernel: [ 461.150659] [<ffffffff81035389>] ? should_resched+0x5/0x23 Jan 19 13:15:42 WZLap kernel: [ 461.150661] [<ffffffff8125e5c4>] ? __sys_sendmsg+0x1e8/0x288 Jan 19 13:15:42 WZLap kernel: [ 461.150663] [<ffffffff81329632>] ? _cond_resched+0x7/0x1c Jan 19 13:15:42 WZLap kernel: [ 461.150664] [<ffffffff810549b7>] ? set_current_blocked+0x2d/0x43 Jan 19 13:15:42 WZLap kernel: [ 461.150667] [<ffffffff8100e29a>] ? do_signal+0x526/0x5fc Jan 19 13:15:42 WZLap kernel: [ 461.150669] [<ffffffff81035389>] ? should_resched+0x5/0x23 Jan 19 13:15:42 WZLap kernel: [ 461.150670] [<ffffffff81329632>] ? _cond_resched+0x7/0x1c Jan 19 13:15:42 WZLap kernel: [ 461.150672] [<ffffffff810158ce>] ? check_for_xstate+0x27/0x7c Jan 19 13:15:42 WZLap kernel: [ 461.150674] [<ffffffff81015bb7>] ? restore_i387_xstate+0xa7/0x158 Jan 19 13:15:42 WZLap kernel: [ 461.150676] [<ffffffff81055422>] ? do_sigaltstack+0xaa/0x13e Jan 19 13:15:42 WZLap kernel: [ 461.150678] [<ffffffff810f7837>] ? fget_light+0x2c/0x73 Jan 19 13:15:42 WZLap kernel: [ 461.150679] [<ffffffff8125ff2e>] ? sys_sendmsg+0x39/0x58 Jan 19 13:15:42 WZLap kernel: [ 461.150681] [<ffffffff8132f8d2>] ? system_call_fastpath+0x16/0x1b Jan 19 13:15:42 WZLap kernel: [ 461.150682] ---[ end trace 8c08ef5d87bc0139 ]--- Jan 19 13:15:42 WZLap kernel: [ 461.167285] ------------[ cut here ]------------ Jan 19 13:15:42 WZLap kernel: [ 461.167300] WARNING: at drivers/net/wireless/iwlwifi/iwl-agn-lib.c:834 iwlagn_set_rxon_chain+0x101/0x1ac [iwlwifi]() Jan 19 13:15:42 WZLap kernel: [ 461.167303] Hardware name: Dell System Vostro 3750 Jan 19 13:15:42 WZLap kernel: [ 461.167304] invalid SMPS mode 0 Jan 19 13:15:42 WZLap kernel: [ 461.167306] Modules linked in: hidp hid tun acpi_cpufreq mperf cpufreq_conservative cpufreq_userspace cpufreq_stats cpufreq_powersave ipx p8023 parport_pc ppdev lp parport rfcomm bnep binfmt_misc uinput fuse nfsd nfs lockd fscache auth_rpcgss nfs_acl sunrpc ip6table_filter ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_tcpudp xt_owner iptable_filter ip_tables x_tables loop sha256_generic cryptd aes_x86_64 aes_generic cbc dm_crypt kvm_intel kvm snd_hda_codec_realtek uvcvideo snd_hda_intel snd_hda_codec videodev snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm media arc4 snd_seq_midi snd_rawmidi v4l2_compat_ioctl32 nouveau i915 ttm drm_kms_helper drm iwlwifi i2c_i801 snd_seq_midi_event i2c_algo_bit i2c_core intel_agp mac80211 snd_seq iTCO_wdt dell_laptop dell_wmi sparse_keymap evdev iTCO_vendor_support snd_timer snd_seq_device intel_gtt agpgart mxm_wmi dcdbas btusb psmouse serio_raw bluetooth cfg80211 pcspkr processor video button ac battery snd soundcore snd_page Jan 19 13:15:42 WZLap kernel: _alloc wmi rfkill power_supply ext4 mbcache jbd2 crc16 dm_mod ums_realtek usb_storage uas sr_mod sd_mod cdrom crc_t10dif xhci_hcd ahci libahci libata scsi_mod ehci_hcd usbcore r8169 usb_common mii thermal thermal_sys [last unloaded: scsi_wait_scan] Jan 19 13:15:42 WZLap kernel: [ 461.167363] Pid: 1575, comm: wpa_supplicant Tainted: G W 3.2.1 #2 Jan 19 13:15:42 WZLap kernel: [ 461.167364] Call Trace: Jan 19 13:15:42 WZLap kernel: [ 461.167367] [<ffffffff810455e7>] ? warn_slowpath_common+0x78/0x8c Jan 19 13:15:42 WZLap kernel: [ 461.167369] [<ffffffff81045693>] ? warn_slowpath_fmt+0x45/0x4a Jan 19 13:15:42 WZLap kernel: [ 461.167375] [<ffffffffa0309e7f>] ? iwlagn_commit_rxon+0x452/0x5fa [iwlwifi] Jan 19 13:15:42 WZLap kernel: [ 461.167380] [<ffffffffa0300770>] ? iwlagn_set_rxon_chain+0x101/0x1ac [iwlwifi] Jan 19 13:15:42 WZLap kernel: [ 461.167384] [<ffffffffa02fa602>] ? iwl_update_chain_flags+0x36/0x5c [iwlwifi] Jan 19 13:15:42 WZLap kernel: [ 461.167389] [<ffffffffa03080db>] ? iwl_power_set_mode+0xf1/0x15b [iwlwifi] Jan 19 13:15:42 WZLap kernel: [ 461.167393] [<ffffffffa030830a>] ? iwl_power_update_mode+0x1c5/0x1ce [iwlwifi] Jan 19 13:15:42 WZLap kernel: [ 461.167398] [<ffffffffa030a24a>] ? iwlagn_mac_config+0x1ef/0x27b [iwlwifi] Jan 19 13:15:42 WZLap kernel: [ 461.167401] [<ffffffff81035389>] ? should_resched+0x5/0x23 Jan 19 13:15:42 WZLap kernel: [ 461.167407] [<ffffffffa02ad277>] ? ieee80211_mgd_deauth+0x19e/0x1c2 [mac80211] Jan 19 13:15:42 WZLap kernel: [ 461.167410] [<ffffffff81060996>] ? __remove_hrtimer+0x2a/0x82 Jan 19 13:15:42 WZLap kernel: [ 461.167416] [<ffffffffa01cd525>] ? __cfg80211_mlme_deauth+0x107/0x116 [cfg80211] Jan 19 13:15:42 WZLap kernel: [ 461.167418] [<ffffffff81060cc5>] ? hrtimer_cancel+0xc/0x16 Jan 19 13:15:42 WZLap kernel: [ 461.167420] [<ffffffff81035389>] ? should_resched+0x5/0x23 Jan 19 13:15:42 WZLap kernel: [ 461.167426] [<ffffffffa01cd59d>] ? cfg80211_mlme_deauth+0x69/0x82 [cfg80211] Jan 19 13:15:42 WZLap kernel: [ 461.167428] [<ffffffff81329632>] ? _cond_resched+0x7/0x1c Jan 19 13:15:42 WZLap kernel: [ 461.167433] [<ffffffffa01c3c08>] ? nl80211_deauthenticate+0xbc/0xc7 [cfg80211] Jan 19 13:15:42 WZLap kernel: [ 461.167439] [<ffffffffa01c5b97>] ? nl80211_pre_doit+0x85/0xfb [cfg80211] Jan 19 13:15:42 WZLap kernel: [ 461.167443] [<ffffffff8128ec31>] ? genl_rcv_msg+0x1cb/0x1f9 Jan 19 13:15:42 WZLap kernel: [ 461.167445] [<ffffffff8128ea66>] ? genl_rcv+0x28/0x28 Jan 19 13:15:42 WZLap kernel: [ 461.167447] [<ffffffff8128e6c5>] ? netlink_rcv_skb+0x36/0x7a Jan 19 13:15:42 WZLap kernel: [ 461.167448] [<ffffffff8128ea5d>] ? genl_rcv+0x1f/0x28 Jan 19 13:15:42 WZLap kernel: [ 461.167450] [<ffffffff8128e271>] ? netlink_unicast+0xe6/0x14e Jan 19 13:15:42 WZLap kernel: [ 461.167452] [<ffffffff8128e4d5>] ? netlink_sendmsg+0x1fc/0x237 Jan 19 13:15:42 WZLap kernel: [ 461.167453] [<ffffffff8125e32f>] ? sock_sendmsg+0xc1/0xde Jan 19 13:15:42 WZLap kernel: [ 461.167455] [<ffffffff8125e20e>] ? sock_recvmsg+0xcd/0xec Jan 19 13:15:42 WZLap kernel: [ 461.167457] [<ffffffff81329632>] ? _cond_resched+0x7/0x1c Jan 19 13:15:42 WZLap kernel: [ 461.167459] [<ffffffff81035389>] ? should_resched+0x5/0x23 Jan 19 13:15:42 WZLap kernel: [ 461.167460] [<ffffffff81329632>] ? _cond_resched+0x7/0x1c Jan 19 13:15:42 WZLap kernel: [ 461.167462] [<ffffffff81267674>] ? copy_from_user+0x18/0x30 Jan 19 13:15:42 WZLap kernel: [ 461.167464] [<ffffffff81035389>] ? should_resched+0x5/0x23 Jan 19 13:15:42 WZLap kernel: [ 461.167465] [<ffffffff8125e5c4>] ? __sys_sendmsg+0x1e8/0x288 Jan 19 13:15:42 WZLap kernel: [ 461.167467] [<ffffffff81329632>] ? _cond_resched+0x7/0x1c Jan 19 13:15:42 WZLap kernel: [ 461.167469] [<ffffffff810549b7>] ? set_current_blocked+0x2d/0x43 Jan 19 13:15:42 WZLap kernel: [ 461.167471] [<ffffffff8100e29a>] ? do_signal+0x526/0x5fc Jan 19 13:15:42 WZLap kernel: [ 461.167473] [<ffffffff81035389>] ? should_resched+0x5/0x23 Jan 19 13:15:42 WZLap kernel: [ 461.167475] [<ffffffff81329632>] ? _cond_resched+0x7/0x1c Jan 19 13:15:42 WZLap kernel: [ 461.167477] [<ffffffff810158ce>] ? check_for_xstate+0x27/0x7c Jan 19 13:15:42 WZLap kernel: [ 461.167479] [<ffffffff81015bb7>] ? restore_i387_xstate+0xa7/0x158 Jan 19 13:15:42 WZLap kernel: [ 461.167480] [<ffffffff81055422>] ? do_sigaltstack+0xaa/0x13e Jan 19 13:15:42 WZLap kernel: [ 461.167482] [<ffffffff810f7837>] ? fget_light+0x2c/0x73 Jan 19 13:15:42 WZLap kernel: [ 461.167484] [<ffffffff8125ff2e>] ? sys_sendmsg+0x39/0x58 Jan 19 13:15:42 WZLap kernel: [ 461.167496] [<ffffffff8132f8d2>] ? system_call_fastpath+0x16/0x1b Jan 19 13:15:42 WZLap kernel: [ 461.167498] ---[ end trace 8c08ef5d87bc013a ]--- Jan 19 13:15:42 WZLap kernel: [ 461.167523] cfg80211: Calling CRDA to update world regulatory domain Jan 19 13:15:42 WZLap kernel: [ 461.559068] ------------[ cut here ]------------ Jan 19 13:15:42 WZLap kernel: [ 461.561368] WARNING: at drivers/net/wireless/iwlwifi/iwl-agn-lib.c:834 iwlagn_set_rxon_chain+0x101/0x1ac [iwlwifi]() Jan 19 13:15:42 WZLap kernel: [ 461.563631] Hardware name: Dell System Vostro 3750 Jan 19 13:15:42 WZLap kernel: [ 461.565763] invalid SMPS mode 0 Jan 19 13:15:42 WZLap kernel: [ 461.565792] Modules linked in: hidp hid tun acpi_cpufreq mperf cpufreq_conservative cpufreq_userspace cpufreq_stats cpufreq_powersave ipx p8023 parport_pc ppdev lp parport rfcomm bnep binfmt_misc uinput fuse nfsd nfs lockd fscache auth_rpcgss nfs_acl sunrpc ip6table_filter ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_tcpudp xt_owner iptable_filter ip_tables x_tables loop sha256_generic cryptd aes_x86_64 aes_generic cbc dm_crypt kvm_intel kvm snd_hda_codec_realtek uvcvideo snd_hda_intel snd_hda_codec videodev snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm media arc4 snd_seq_midi snd_rawmidi v4l2_compat_ioctl32 nouveau i915 ttm drm_kms_helper drm iwlwifi i2c_i801 snd_seq_midi_event i2c_algo_bit i2c_core intel_agp mac80211 snd_seq iTCO_wdt dell_laptop dell_wmi sparse_keymap evdev iTCO_vendor_support snd_timer snd_seq_device intel_gtt agpgart mxm_wmi dcdbas btusb psmouse serio_raw bluetooth cfg80211 pcspkr processor video button ac battery snd soundcore snd_page Jan 19 13:15:42 WZLap kernel: _alloc wmi rfkill power_supply ext4 mbcache jbd2 crc16 dm_mod ums_realtek usb_storage uas sr_mod sd_mod cdrom crc_t10dif xhci_hcd ahci libahci libata scsi_mod ehci_hcd usbcore r8169 usb_common mii thermal thermal_sys [last unloaded: scsi_wait_scan] Jan 19 13:15:42 WZLap kernel: [ 461.585282] Pid: 1554, comm: NetworkManager Tainted: G W 3.2.1 #2 Jan 19 13:15:42 WZLap kernel: [ 461.587951] Call Trace: Jan 19 13:15:42 WZLap kernel: [ 461.590589] [<ffffffff810455e7>] ? warn_slowpath_common+0x78/0x8c Jan 19 13:15:42 WZLap kernel: [ 461.593278] [<ffffffff81045693>] ? warn_slowpath_fmt+0x45/0x4a Jan 19 13:15:42 WZLap kernel: [ 461.593288] [<ffffffff81035389>] ? should_resched+0x5/0x23 Jan 19 13:15:42 WZLap kernel: [ 461.593293] [<ffffffff8132a95f>] ? _raw_spin_lock_irq+0xa/0x14 Jan 19 13:15:42 WZLap kernel: [ 461.593303] [<ffffffffa0300770>] ? iwlagn_set_rxon_chain+0x101/0x1ac [iwlwifi] Jan 19 13:15:42 WZLap kernel: [ 461.593307] [<ffffffff81035389>] ? should_resched+0x5/0x23 Jan 19 13:15:42 WZLap kernel: [ 461.593318] [<ffffffffa03060cb>] ? iwl_teardown_interface+0x4d/0x81 [iwlwifi] Jan 19 13:15:42 WZLap kernel: [ 461.593330] [<ffffffffa0306a10>] ? iwlagn_mac_remove_interface+0xc5/0xdd [iwlwifi] Jan 19 13:15:42 WZLap kernel: [ 461.593346] [<ffffffffa02afff8>] ? ieee80211_do_stop+0x30d/0x45e [mac80211] Jan 19 13:15:42 WZLap kernel: [ 461.593353] [<ffffffff8104aa97>] ? _local_bh_enable_ip.isra.11+0x1e/0x88 Jan 19 13:15:42 WZLap kernel: [ 461.593365] [<ffffffffa02b015b>] ? ieee80211_stop+0x12/0x16 [mac80211] Jan 19 13:15:42 WZLap kernel: [ 461.593375] [<ffffffffa02b0149>] ? ieee80211_do_stop+0x45e/0x45e [mac80211] Jan 19 13:15:42 WZLap kernel: [ 461.593382] [<ffffffff8126c00c>] ? __dev_close_many+0x84/0xb0 Jan 19 13:15:42 WZLap kernel: [ 461.593387] [<ffffffff8126c068>] ? __dev_close+0x30/0x47 Jan 19 13:15:42 WZLap kernel: [ 461.593392] [<ffffffff8127044c>] ? dev_set_rx_mode+0x1d/0x29 Jan 19 13:15:42 WZLap kernel: [ 461.593396] [<ffffffff812706d7>] ? __dev_change_flags+0x9d/0x118 Jan 19 13:15:42 WZLap kernel: [ 461.593401] [<ffffffff812707b5>] ? dev_change_flags+0x12/0x42 Jan 19 13:15:42 WZLap kernel: [ 461.593407] [<ffffffff8127a430>] ? do_setlink+0x287/0x728 Jan 19 13:15:42 WZLap kernel: [ 461.593414] [<ffffffff810e8842>] ? kmem_cache_alloc_node_trace+0x96/0x10a Jan 19 13:15:42 WZLap kernel: [ 461.593420] [<ffffffff8127ac52>] ? __rtnl_unlock+0xc/0xc Jan 19 13:15:42 WZLap kernel: [ 461.593425] [<ffffffff8127ab1a>] ? rtnl_setlink+0xc4/0xe6 Jan 19 13:15:42 WZLap kernel: [ 461.593431] [<ffffffff8128e6c5>] ? netlink_rcv_skb+0x36/0x7a Jan 19 13:15:42 WZLap kernel: [ 461.593436] [<ffffffff8127a065>] ? rtnetlink_rcv+0x1f/0x28 Jan 19 13:15:42 WZLap kernel: [ 461.593440] [<ffffffff8128e271>] ? netlink_unicast+0xe6/0x14e Jan 19 13:15:42 WZLap kernel: [ 461.593445] [<ffffffff8128e4d5>] ? netlink_sendmsg+0x1fc/0x237 Jan 19 13:15:42 WZLap kernel: [ 461.593451] [<ffffffff8125e32f>] ? sock_sendmsg+0xc1/0xde Jan 19 13:15:42 WZLap kernel: [ 461.593455] [<ffffffff8125e20e>] ? sock_recvmsg+0xcd/0xec Jan 19 13:15:42 WZLap kernel: [ 461.593460] [<ffffffff8125e32f>] ? sock_sendmsg+0xc1/0xde Jan 19 13:15:42 WZLap kernel: [ 461.593464] [<ffffffff81329632>] ? _cond_resched+0x7/0x1c Jan 19 13:15:42 WZLap kernel: [ 461.593469] [<ffffffff81035389>] ? should_resched+0x5/0x23 Jan 19 13:15:42 WZLap kernel: [ 461.593473] [<ffffffff81329632>] ? _cond_resched+0x7/0x1c Jan 19 13:15:42 WZLap kernel: [ 461.593478] [<ffffffff81267674>] ? copy_from_user+0x18/0x30 Jan 19 13:15:42 WZLap kernel: [ 461.593483] [<ffffffff81035389>] ? should_resched+0x5/0x23 Jan 19 13:15:42 WZLap kernel: [ 461.593487] [<ffffffff8125e5c4>] ? __sys_sendmsg+0x1e8/0x288 Jan 19 13:15:42 WZLap kernel: [ 461.593492] [<ffffffff810f786a>] ? fget_light+0x5f/0x73 Jan 19 13:15:42 WZLap kernel: [ 461.593496] [<ffffffff8125fc09>] ? sys_sendto+0x108/0x137 Jan 19 13:15:42 WZLap kernel: [ 461.593501] [<ffffffff810f786a>] ? fget_light+0x5f/0x73 Jan 19 13:15:42 WZLap kernel: [ 461.593505] [<ffffffff8125ff2e>] ? sys_sendmsg+0x39/0x58 Jan 19 13:15:42 WZLap kernel: [ 461.593510] [<ffffffff8132f8d2>] ? system_call_fastpath+0x16/0x1b Jan 19 13:15:42 WZLap kernel: [ 461.593515] ---[ end trace 8c08ef5d87bc013b ]--- Jan 19 13:15:48 WZLap kernel: Kernel logging (proc) stopped.
It is fixed upstream 3.3-rc1 by: commit b2ccccdca46273c7b321ecf5041c362cd950da20 Author: Wey-Yi Guy <wey-yi.w.guy@intel.com> Date: Thu Nov 10 06:55:04 2011 -0800 iwlagn: check for SMPS mode Check and report WARN only when its invalid We need backport that to -stable
I posted patches for currently maintained -stable releases (3.0 and 3.2) http://article.gmane.org/gmane.linux.kernel.wireless.general/84253 http://article.gmane.org/gmane.linux.kernel.wireless.general/84251 Since fix is committed in upstream kernel, I'm closing the bug with CODE_FIX status.