Heyho! (This is using kernel 2.6.31-rc3 as packaged by Debian) While taking a full backup of my laptop, I noticed that after a few 100M the ath5k can't connect to WLAN anymore. syslog shows: +++ Jul 28 00:12:59 laeggerli kernel: [187967.601820] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:13:04 laeggerli wpa_supplicant[2574]: CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys Jul 28 00:13:04 laeggerli NetworkManager: <info> (wlan0): supplicant connection state: completed -> disconnected Jul 28 00:13:04 laeggerli kernel: [187973.344128] wlan0: no probe response from AP 00:21:29:7c:d6:7e - disassociating Jul 28 00:13:05 laeggerli NetworkManager: <info> (wlan0): supplicant connection state: disconnected -> scanning Jul 28 00:13:06 laeggerli wpa_supplicant[2574]: CTRL-EVENT-SCAN-RESULTS Jul 28 00:13:06 laeggerli wpa_supplicant[2574]: Trying to associate with 00:21:29:7c:d6:7e (SSID='JUNGBORN' freq=2437 MHz) Jul 28 00:13:06 laeggerli wpa_supplicant[2574]: Association request to the driver failed Jul 28 00:13:06 laeggerli NetworkManager: <info> (wlan0): supplicant connection state: scanning -> associating Jul 28 00:13:06 laeggerli kernel: [187974.834410] wlan0: authenticate with AP 00:21:29:7c:d6:7e Jul 28 00:13:06 laeggerli kernel: [187974.835893] wlan0: authenticated Jul 28 00:13:06 laeggerli kernel: [187974.835902] wlan0: associate with AP 00:21:29:7c:d6:7e Jul 28 00:13:06 laeggerli kernel: [187974.838825] wlan0: RX ReassocResp from 00:21:29:7c:d6:7e (capab=0x411 status=13 aid=0) Jul 28 00:13:06 laeggerli kernel: [187974.838839] wlan0: AP denied association (code=13) Jul 28 00:13:06 laeggerli kernel: [187975.032147] wlan0: associate with AP 00:21:29:7c:d6:7e Jul 28 00:13:06 laeggerli kernel: [187975.232140] wlan0: associate with AP 00:21:29:7c:d6:7e Jul 28 00:13:06 laeggerli kernel: [187975.234415] wlan0: RX AssocResp from 00:21:29:7c:d6:7e (capab=0x411 status=0 aid=2) Jul 28 00:13:06 laeggerli kernel: [187975.234427] wlan0: associated Jul 28 00:13:06 laeggerli wpa_supplicant[2574]: Associated with 00:21:29:7c:d6:7e Jul 28 00:13:06 laeggerli NetworkManager: <info> (wlan0): supplicant connection state: associating -> associated Jul 28 00:13:06 laeggerli NetworkManager: <info> (wlan0): supplicant connection state: associated -> 4-way handshake Jul 28 00:13:06 laeggerli wpa_supplicant[2574]: WPA: Key negotiation completed with 00:21:29:7c:d6:7e [PTK=CCMP GTK=CCMP] Jul 28 00:13:06 laeggerli wpa_supplicant[2574]: CTRL-EVENT-CONNECTED - Connection to 00:21:29:7c:d6:7e completed (reauth) [id=0 id_str=] Jul 28 00:13:06 laeggerli NetworkManager: <info> (wlan0): supplicant connection state: 4-way handshake -> group handshake Jul 28 00:13:06 laeggerli NetworkManager: <info> (wlan0): supplicant connection state: group handshake -> completed Jul 28 00:13:50 laeggerli wpa_supplicant[2574]: CTRL-EVENT-SCAN-RESULTS Jul 28 00:15:50 laeggerli wpa_supplicant[2574]: CTRL-EVENT-SCAN-RESULTS Jul 28 00:16:57 laeggerli kernel: [188206.300081] CE: hpet increasing min_delta_ns to 22500 nsec Jul 28 00:17:50 laeggerli wpa_supplicant[2574]: CTRL-EVENT-SCAN-RESULTS Jul 28 00:19:50 laeggerli wpa_supplicant[2574]: CTRL-EVENT-SCAN-RESULTS Jul 28 00:21:50 laeggerli wpa_supplicant[2574]: CTRL-EVENT-SCAN-RESULTS Jul 28 00:23:50 laeggerli wpa_supplicant[2574]: CTRL-EVENT-SCAN-RESULTS Jul 28 00:25:50 laeggerli wpa_supplicant[2574]: CTRL-EVENT-SCAN-RESULTS Jul 28 00:27:50 laeggerli wpa_supplicant[2574]: CTRL-EVENT-SCAN-RESULTS Jul 28 00:29:50 laeggerli wpa_supplicant[2574]: CTRL-EVENT-SCAN-RESULTS Jul 28 00:31:50 laeggerli wpa_supplicant[2574]: CTRL-EVENT-SCAN-RESULTS Jul 28 00:33:50 laeggerli wpa_supplicant[2574]: CTRL-EVENT-SCAN-RESULTS Jul 28 00:35:50 laeggerli wpa_supplicant[2574]: CTRL-EVENT-SCAN-RESULTS Jul 28 00:36:33 laeggerli wpa_supplicant[2574]: WPA: Group rekeying completed with 00:21:29:7c:d6:7e [GTK=CCMP] Jul 28 00:36:33 laeggerli NetworkManager: <info> (wlan0): supplicant connection state: completed -> group handshake Jul 28 00:36:33 laeggerli NetworkManager: <info> (wlan0): supplicant connection state: group handshake -> completed Jul 28 00:37:50 laeggerli wpa_supplicant[2574]: CTRL-EVENT-SCAN-RESULTS Jul 28 00:39:50 laeggerli wpa_supplicant[2574]: CTRL-EVENT-SCAN-RESULTS Jul 28 00:40:39 laeggerli wpa_supplicant[2574]: CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys Jul 28 00:40:39 laeggerli kernel: [189628.185908] wlan0: no probe response from AP 00:21:29:7c:d6:7e - disassociating Jul 28 00:40:39 laeggerli kernel: [189628.312377] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:40:39 laeggerli NetworkManager: <info> (wlan0): supplicant connection state: completed -> disconnected Jul 28 00:40:39 laeggerli NetworkManager: <info> (wlan0): supplicant connection state: disconnected -> scanning Jul 28 00:40:40 laeggerli kernel: [189628.381965] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:40:40 laeggerli kernel: [189628.381984] ath5k phy0: can't reset hardware (-5) Jul 28 00:40:40 laeggerli kernel: [189628.419755] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:40:40 laeggerli kernel: [189628.419771] ath5k phy0: can't reset hardware (-5) Jul 28 00:40:40 laeggerli kernel: [189628.457511] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:40:40 laeggerli kernel: [189628.457526] ath5k phy0: can't reset hardware (-5) Jul 28 00:40:40 laeggerli kernel: [189628.495260] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:40:40 laeggerli kernel: [189628.495276] ath5k phy0: can't reset hardware (-5) Jul 28 00:40:40 laeggerli wpa_supplicant[2574]: CTRL-EVENT-SCAN-RESULTS Jul 28 00:40:45 laeggerli kernel: [189633.901859] __ratelimit: 20 callbacks suppressed Jul 28 00:40:45 laeggerli kernel: [189633.901872] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:40:45 laeggerli kernel: [189633.901886] ath5k phy0: can't reset hardware (-5) Jul 28 00:40:45 laeggerli kernel: [189633.939635] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:40:45 laeggerli kernel: [189633.939651] ath5k phy0: can't reset hardware (-5) Jul 28 00:40:45 laeggerli kernel: [189633.977350] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:40:45 laeggerli kernel: [189633.977365] ath5k phy0: can't reset hardware (-5) Jul 28 00:40:45 laeggerli kernel: [189634.015105] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:40:45 laeggerli kernel: [189634.015120] ath5k phy0: can't reset hardware (-5) Jul 28 00:40:45 laeggerli kernel: [189634.052883] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:40:45 laeggerli wpa_supplicant[2574]: CTRL-EVENT-SCAN-RESULTS Jul 28 00:40:50 laeggerli kernel: [189639.310908] __ratelimit: 18 callbacks suppressed Jul 28 00:40:50 laeggerli kernel: [189639.310923] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:40:51 laeggerli kernel: [189639.423590] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:40:51 laeggerli kernel: [189639.423608] ath5k phy0: can't reset hardware (-5) Jul 28 00:40:51 laeggerli kernel: [189639.461345] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:40:51 laeggerli kernel: [189639.461361] ath5k phy0: can't reset hardware (-5) Jul 28 00:40:51 laeggerli kernel: [189639.499131] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:40:51 laeggerli kernel: [189639.499147] ath5k phy0: can't reset hardware (-5) Jul 28 00:40:51 laeggerli kernel: [189639.536910] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:40:51 laeggerli kernel: [189639.536926] ath5k phy0: can't reset hardware (-5) Jul 28 00:40:51 laeggerli kernel: [189639.574650] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:40:51 laeggerli wpa_supplicant[2574]: CTRL-EVENT-SCAN-RESULTS Jul 28 00:40:55 laeggerli NetworkManager: <info> (wlan0): device state change: 8 -> 3 Jul 28 00:40:55 laeggerli NetworkManager: <info> (wlan0): deactivating device (reason: 11). Jul 28 00:40:55 laeggerli NetworkManager: <info> wlan0: canceled DHCP transaction, dhcp client pid 22348 Jul 28 00:40:55 laeggerli NetworkManager: <info> (wlan0): removing resolv.conf from /sbin/resolvconf Jul 28 00:40:55 laeggerli NetworkManager: <WARN> check_one_route(): (wlan0) error -34 returned from rtnl_route_del(): Sucess#012 Jul 28 00:40:55 laeggerli NetworkManager: <info> Activation (wlan0) starting connection 'JUNGBORN' Jul 28 00:40:55 laeggerli NetworkManager: <info> (wlan0): device state change: 3 -> 4 Jul 28 00:40:55 laeggerli NetworkManager: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled... Jul 28 00:40:55 laeggerli NetworkManager: <info> (wlan0): supplicant connection state: scanning -> disconnected Jul 28 00:40:55 laeggerli NetworkManager: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started... Jul 28 00:40:55 laeggerli NetworkManager: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled... Jul 28 00:40:55 laeggerli NetworkManager: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete. Jul 28 00:40:55 laeggerli NetworkManager: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting... Jul 28 00:40:55 laeggerli NetworkManager: <info> (wlan0): device state change: 4 -> 5 Jul 28 00:40:55 laeggerli NetworkManager: <info> Activation (wlan0/wireless): connection 'JUNGBORN' has security, and secrets exist. No new Jul 28 00:40:55 laeggerli NetworkManager: <info> Config: added 'ssid' value 'JUNGBORN' Jul 28 00:40:55 laeggerli NetworkManager: <info> Config: added 'scan_ssid' value '1' Jul 28 00:40:55 laeggerli NetworkManager: <info> Config: added 'key_mgmt' value 'WPA-PSK' Jul 28 00:40:55 laeggerli NetworkManager: <info> Config: added 'auth_alg' value 'OPEN' Jul 28 00:40:55 laeggerli NetworkManager: <info> Config: added 'psk' value '<omitted>' Jul 28 00:40:55 laeggerli NetworkManager: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete. Jul 28 00:40:55 laeggerli NetworkManager: <info> Config: set interface ap_scan to 1 Jul 28 00:40:56 laeggerli NetworkManager: <info> (wlan0): supplicant connection state: disconnected -> scanning Jul 28 00:40:56 laeggerli kernel: [189644.942989] __ratelimit: 19 callbacks suppressed Jul 28 00:40:56 laeggerli kernel: [189644.943006] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:40:56 laeggerli kernel: [189644.943025] ath5k phy0: can't reset hardware (-5) Jul 28 00:40:56 laeggerli kernel: [189644.980644] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:40:56 laeggerli kernel: [189644.980657] ath5k phy0: can't reset hardware (-5) Jul 28 00:40:56 laeggerli kernel: [189645.018382] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:40:56 laeggerli kernel: [189645.018400] ath5k phy0: can't reset hardware (-5) Jul 28 00:40:56 laeggerli kernel: [189645.056153] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:40:56 laeggerli kernel: [189645.056169] ath5k phy0: can't reset hardware (-5) Jul 28 00:40:56 laeggerli kernel: [189645.093905] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:40:56 laeggerli kernel: [189645.093920] ath5k phy0: can't reset hardware (-5) Jul 28 00:40:57 laeggerli wpa_supplicant[2574]: CTRL-EVENT-SCAN-RESULTS Jul 28 00:41:01 laeggerli kernel: [189650.312282] __ratelimit: 18 callbacks suppressed Jul 28 00:41:01 laeggerli kernel: [189650.312297] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:41:02 laeggerli kernel: [189650.465854] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:41:02 laeggerli kernel: [189650.465873] ath5k phy0: can't reset hardware (-5) Jul 28 00:41:02 laeggerli kernel: [189650.503638] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:41:02 laeggerli kernel: [189650.503654] ath5k phy0: can't reset hardware (-5) Jul 28 00:41:02 laeggerli kernel: [189650.541381] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:41:02 laeggerli kernel: [189650.541397] ath5k phy0: can't reset hardware (-5) Jul 28 00:41:02 laeggerli kernel: [189650.579152] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:41:02 laeggerli kernel: [189650.579168] ath5k phy0: can't reset hardware (-5) Jul 28 00:41:02 laeggerli kernel: [189650.616908] ath5k phy0: failed to wakeup the MAC Chip ... Jul 28 00:41:19 laeggerli wpa_supplicant[2574]: CTRL-EVENT-SCAN-RESULTS Jul 28 00:41:21 laeggerli NetworkManager: <info> Activation (wlan0/wireless): association took too long. Jul 28 00:41:21 laeggerli NetworkManager: <info> (wlan0): device state change: 5 -> 6 Jul 28 00:41:21 laeggerli NetworkManager: <info> Activation (wlan0/wireless): asking for new secrets Jul 28 00:41:21 laeggerli NetworkManager: <info> (wlan0): supplicant connection state: scanning -> disconnected Jul 28 00:41:23 laeggerli kernel: [189672.311165] __ratelimit: 18 callbacks suppressed Jul 28 00:41:23 laeggerli kernel: [189672.311180] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:41:34 laeggerli kernel: [189683.312283] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:41:36 laeggerli NetworkManager: <info> wlan0: link timed out. Jul 28 00:41:45 laeggerli kernel: [189694.310974] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:41:49 laeggerli NetworkManager: <info> (wlan0): supplicant connection state: disconnected -> scanning Jul 28 00:41:49 laeggerli kernel: [189697.437887] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:41:49 laeggerli kernel: [189697.437906] ath5k phy0: can't reset hardware (-5) Jul 28 00:41:49 laeggerli kernel: [189697.475626] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:41:49 laeggerli kernel: [189697.475640] ath5k phy0: can't reset hardware (-5) Jul 28 00:41:49 laeggerli kernel: [189697.513393] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:41:49 laeggerli kernel: [189697.513410] ath5k phy0: can't reset hardware (-5) Jul 28 00:41:49 laeggerli kernel: [189697.551173] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:41:49 laeggerli kernel: [189697.551190] ath5k phy0: can't reset hardware (-5) Jul 28 00:41:49 laeggerli kernel: [189697.588922] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:41:49 laeggerli wpa_supplicant[2574]: CTRL-EVENT-SCAN-RESULTS Jul 28 00:41:56 laeggerli kernel: [189705.310991] __ratelimit: 19 callbacks suppressed Jul 28 00:41:56 laeggerli kernel: [189705.311005] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:42:07 laeggerli kernel: [189716.310940] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:42:18 laeggerli kernel: [189727.311011] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:42:29 laeggerli kernel: [189738.312159] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:42:40 laeggerli kernel: [189749.310972] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:42:51 laeggerli kernel: [189760.310827] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:43:02 laeggerli kernel: [189771.310876] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:43:13 laeggerli kernel: [189782.310957] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:43:24 laeggerli kernel: [189793.310941] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:43:49 laeggerli kernel: [189817.437845] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:43:49 laeggerli kernel: [189817.437864] ath5k phy0: can't reset hardware (-5) Jul 28 00:43:49 laeggerli kernel: [189817.475614] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:43:49 laeggerli kernel: [189817.475627] ath5k phy0: can't reset hardware (-5) Jul 28 00:43:49 laeggerli kernel: [189817.513366] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:43:49 laeggerli kernel: [189817.513383] ath5k phy0: can't reset hardware (-5) Jul 28 00:43:49 laeggerli kernel: [189817.551138] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:43:49 laeggerli kernel: [189817.551153] ath5k phy0: can't reset hardware (-5) Jul 28 00:43:49 laeggerli kernel: [189817.588901] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:43:49 laeggerli wpa_supplicant[2574]: CTRL-EVENT-SCAN-RESULTS Jul 28 00:43:57 laeggerli kernel: [189826.310939] __ratelimit: 19 callbacks suppressed Jul 28 00:43:57 laeggerli kernel: [189826.310954] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:44:08 laeggerli kernel: [189837.310993] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:44:19 laeggerli kernel: [189848.310941] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:44:30 laeggerli kernel: [189859.312331] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:44:41 laeggerli kernel: [189870.310908] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:44:52 laeggerli kernel: [189881.310876] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:45:03 laeggerli kernel: [189892.310988] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:45:14 laeggerli kernel: [189903.311005] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:45:25 laeggerli kernel: [189914.310988] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:45:36 laeggerli kernel: [189925.312394] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:45:47 laeggerli kernel: [189936.310909] ath5k phy0: noise floor calibration timeout (2437MHz) Jul 28 00:45:49 laeggerli kernel: [189937.437866] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:45:49 laeggerli kernel: [189937.437885] ath5k phy0: can't reset hardware (-5) Jul 28 00:45:49 laeggerli kernel: [189937.475614] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:45:49 laeggerli kernel: [189937.475628] ath5k phy0: can't reset hardware (-5) Jul 28 00:45:49 laeggerli kernel: [189937.513360] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:45:49 laeggerli kernel: [189937.513377] ath5k phy0: can't reset hardware (-5) Jul 28 00:45:49 laeggerli kernel: [189937.551138] ath5k phy0: failed to wakeup the MAC Chip Jul 28 00:45:49 laeggerli kernel: [189937.551154] ath5k phy0: can't reset hardware (-5) Jul 28 00:45:49 laeggerli kernel: [189937.588900] ath5k phy0: failed to wakeup the MAC Chip etc. etc. +++ This only happens with bulk data transfers, and probably only when sending. Downloading large dataset over WLAN is fine (I haven't tested it as much as sending, though: downloads are mostly small, while the bulk sending happens regularly during backup.) It is not related to how long the WLAN is up: I can work for days or weeks (happened with earlier kernels as well) with this laptop, over suspend/resume, and WLAN works fine. It's only when I run backup that it happens (always - but I since backups usually are incremental, they're often small enough. But once I do a full backup WLAN goes down. So use cable for those...) Is this known? Can I get you more information? Hardware is Acer AOA 150. thanks -- vbi -- featured link: Debian Bookmark Collection - http://bookmarks.debian.net/
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