I'm getting many warning stack traces fom the above--at least two every 5 seconds whether or not connected via wireless.
Samples are below. On further investigation I see that for each of the pair gpio = 11, for the first ah->caps.num_gpio_pins = 10 and for the second BIT(gpio) = 0x800 and ah->caps.gpio_mask = 0x3ff. I gather this is unexpected, but it seems like some limit on output is in order. If you can't reproduce this situation on your own systems please let me know if you would like me to gather more information for you on the basic problem, test, etc. I don't read the list so please email me directly. Thanks. Here's a representative pair of warnings: Jun 15 07:55:13 gruber-ubuntu-acer kernel: [193389.532500] ---[ end trace c25c9fdececff7b3 ]--- Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523554] ------------[ cut here ]------------ Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523567] WARNING: CPU: 2 PID: 17657 at drivers/net/wireless/ath/ath9k/hw.c:2776 ath9k_hw_gpio_get+0x1a9/0x1b0 [ath9k_hw] Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523568] Modules linked in: ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 xt_CHECKSUM iptable_mangle xt_tcpudp bridge stp llc ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables cmac bnep rfcomm binfmt_misc nls_iso8859_1 usblp arc4 ath9k snd_hda_codec_hdmi uvcvideo ath9k_common ath9k_hw i915 x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel snd_usb_audio snd_hda_codec_realtek videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 kvm ath videobuf2_core snd_hda_codec_generic videodev mac80211 snd_hda_intel snd_hda_codec snd_hda_core ath3k snd_usbmidi_lib joydev rtsx_usb btusb irqbypass btrtl crc32_pclmul snd_hwdep ghash_clmulni_intel btbcm snd_pcm btintel bluetooth drm_kms_helper cfg80211 aesni_intel snd_seq_midi snd_seq_midi_event aes_x86_64 drm lrw snd_rawmidi snd_seq glue_helper ablk_helper cryptd intel_cstate snd_seq_device intel_rapl snd_timer snd i2c_algo_bit fb_sys_fops syscopyarea mei_me mei sysfillrect sysimgblt soundcore serio_raw shpchp wmi lpc_ich parport_pc ppdev lp video mac_hid parport hid_generic usbhid hid psmouse r8169 mii fjes Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523613] CPU: 2 PID: 17657 Comm: kworker/u8:0 Tainted: G W 4.7.0-rc3 #1 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523614] Hardware name: Acer Aspire TC-605/Aspire TC-605, BIOS P11-A2 11/08/2013 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523618] Workqueue: events_power_efficient rfkill_poll Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523620] 0000000000000000 ffff88003ed37d28 ffffffff813888ec 0000000000000000 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523621] 0000000000000000 ffff88003ed37d68 ffffffff81061311 00000ad800000082 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523623] ffff8800d28ec018 000000000000000b ffff8800d28f0720 0000000000000100 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523625] Call Trace: Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523629] [<ffffffff813888ec>] dump_stack+0x63/0x87 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523633] [<ffffffff81061311>] __warn+0xd1/0xf0 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523634] [<ffffffff810613fd>] warn_slowpath_null+0x1d/0x20 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523639] [<ffffffffa096ab19>] ath9k_hw_gpio_get+0x1a9/0x1b0 [ath9k_hw] Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523642] [<ffffffffa06293e4>] ath9k_rfkill_poll_state+0x34/0x60 [ath9k] Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523656] [<ffffffffa046bb53>] ieee80211_rfkill_poll+0x33/0x40 [mac80211] Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523665] [<ffffffffa02c45fa>] cfg80211_rfkill_poll+0x2a/0xc0 [cfg80211] Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523667] [<ffffffff817a4d24>] rfkill_poll+0x24/0x50 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523670] [<ffffffff81078aa3>] process_one_work+0x153/0x400 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523672] [<ffffffff8107926b>] worker_thread+0x12b/0x4b0 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523674] [<ffffffff81079140>] ? rescuer_thread+0x340/0x340 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523676] [<ffffffff8107e4d9>] kthread+0xc9/0xe0 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523678] [<ffffffff817ba23f>] ret_from_fork+0x1f/0x40 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523679] [<ffffffff8107e410>] ? kthread_park+0x60/0x60 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523681] ---[ end trace c25c9fdececff7b4 ]--- Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523681] ------------[ cut here ]------------ Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523686] WARNING: CPU: 2 PID: 17657 at drivers/net/wireless/ath/ath9k/hw.c:2796 ath9k_hw_gpio_get+0xc0/0x1b0 [ath9k_hw] Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523686] Modules linked in: ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 xt_CHECKSUM iptable_mangle xt_tcpudp bridge stp llc ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables cmac bnep rfcomm binfmt_misc nls_iso8859_1 usblp arc4 ath9k snd_hda_codec_hdmi uvcvideo ath9k_common ath9k_hw i915 x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel snd_usb_audio snd_hda_codec_realtek videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 kvm ath videobuf2_core snd_hda_codec_generic videodev mac80211 snd_hda_intel snd_hda_codec snd_hda_core ath3k snd_usbmidi_lib joydev rtsx_usb btusb irqbypass btrtl crc32_pclmul snd_hwdep ghash_clmulni_intel btbcm snd_pcm btintel bluetooth drm_kms_helper cfg80211 aesni_intel snd_seq_midi snd_seq_midi_event aes_x86_64 drm lrw snd_rawmidi snd_seq glue_helper ablk_helper cryptd intel_cstate snd_seq_device intel_rapl snd_timer snd i2c_algo_bit fb_sys_fops syscopyarea mei_me mei sysfillrect sysimgblt soundcore serio_raw shpchp wmi lpc_ich parport_pc ppdev lp video mac_hid parport hid_generic usbhid hid psmouse r8169 mii fjes Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523716] CPU: 2 PID: 17657 Comm: kworker/u8:0 Tainted: G W 4.7.0-rc3 #1 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523717] Hardware name: Acer Aspire TC-605/Aspire TC-605, BIOS P11-A2 11/08/2013 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523719] Workqueue: events_power_efficient rfkill_poll Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523720] 0000000000000000 ffff88003ed37d28 ffffffff813888ec 0000000000000000 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523721] 0000000000000000 ffff88003ed37d68 ffffffff81061311 00000aec00000082 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523723] ffff8800d28ec018 000000000000000b ffff8800d28f0720 0000000000000100 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523724] Call Trace: Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523726] [<ffffffff813888ec>] dump_stack+0x63/0x87 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523728] [<ffffffff81061311>] __warn+0xd1/0xf0 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523730] [<ffffffff810613fd>] warn_slowpath_null+0x1d/0x20 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523733] [<ffffffffa096aa30>] ath9k_hw_gpio_get+0xc0/0x1b0 [ath9k_hw] Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523736] [<ffffffffa06293e4>] ath9k_rfkill_poll_state+0x34/0x60 [ath9k] Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523745] [<ffffffffa046bb53>] ieee80211_rfkill_poll+0x33/0x40 [mac80211] Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523752] [<ffffffffa02c45fa>] cfg80211_rfkill_poll+0x2a/0xc0 [cfg80211] Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523754] [<ffffffff817a4d24>] rfkill_poll+0x24/0x50 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523756] [<ffffffff81078aa3>] process_one_work+0x153/0x400 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523758] [<ffffffff8107926b>] worker_thread+0x12b/0x4b0 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523759] [<ffffffff81079140>] ? rescuer_thread+0x340/0x340 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523761] [<ffffffff8107e4d9>] kthread+0xc9/0xe0 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523763] [<ffffffff817ba23f>] ret_from_fork+0x1f/0x40 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523764] [<ffffffff8107e410>] ? kthread_park+0x60/0x60 Jun 15 07:55:18 gruber-ubuntu-acer kernel: [193394.523765] ---[ end trace c25c9fdececff7b5 ]--- Jun 15 07:55:23 gruber-ubuntu-acer kernel: [193399.499301] ------------[ cut here ]------------ _______________________________________________ ath9k-devel mailing list ath9k-devel@lists.ath9k.org https://lists.ath9k.org/mailman/listinfo/ath9k-devel
