Hi Wolfgang, I don't have the similar AP here for testing. by looking at the log, looks like there is a issue while you scan. Could you please try this patch and see if make any different? it is a long shot, but I just like to see if it make any different at all once you apply the patch, please make sure P2P is disabled in .config Thanks Wey On Fri, 2011-12-09 at 06:50 -0800, Wolfgang Breyha wrote: > Hi! > > I recently upgraded my HP 2540p Laptop with Intel 6200 AGN to Fedora 16 and > suddenly had big troubles keeping the machine stable. After a while I > nailed it down to iwlagn in all available kernels for F16. 3.1.0 - 3.1.4. > > Meanwhile I'm running wireless-compat iwlwifi from today (with the > regression patch from Nikolay) but the troubles are still there. Kernel is > the latest from F16 (3.1.4). > > Cards PCI-Id: 8086:4239 (rev 35) > dmesg from iwlwifi: > > [ 11.091363] Intel(R) Wireless WiFi Link AGN driver for Linux, in-tree:d > > [ 11.091366] Copyright(c) 2003-2011 Intel Corporation > > [ 11.091429] iwlwifi 0000:43:00.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19 > > [ 11.091438] iwlwifi 0000:43:00.0: setting latency timer to 64 > > [ 11.091459] iwlwifi 0000:43:00.0: pci_resource_len = 0x00002000 > > [ 11.091461] iwlwifi 0000:43:00.0: pci_resource_base = fb444000 > > [ 11.091464] iwlwifi 0000:43:00.0: HW Revision ID = 0x35 > > [ 11.091537] iwlwifi 0000:43:00.0: irq 49 for MSI/MSI-X > > [ 11.091592] iwlwifi 0000:43:00.0: CONFIG_IWLWIFI_DEBUG enabled > > [ 11.091594] iwlwifi 0000:43:00.0: CONFIG_IWLWIFI_DEBUGFS enabled > > [ 11.091596] iwlwifi 0000:43:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled > > [ 11.091598] iwlwifi 0000:43:00.0: CONFIG_IWLWIFI_DEVICE_SVTOOL enabled > > [ 11.091605] iwlwifi 0000:43:00.0: Detected Intel(R) Centrino(R) Advanced-N 6200 AGN, REV=0x74 > > [ 11.091724] iwlwifi 0000:43:00.0: L1 Disabled; Enabling L0S > > [ 11.107567] iwlwifi 0000:43:00.0: device EEPROM VER=0x436, CALIB=0x6 > > [ 11.107570] iwlwifi 0000:43:00.0: Device SKU: 0X1f0 > > [ 11.107596] iwlwifi 0000:43:00.0: Tunable channels: 13 802.11bg, 24 802.11a channels > > [ 11.116014] iwlwifi 0000:43:00.0: loaded firmware version 9.221.4.1 build 25532 > > [ 11.116327] Registered led device: phy0-led > > wpa_supplicant is: wpa_supplicant-0.7.3-11.fc16.i686 > driven by NetworkManager: NetworkManager-0.9.2-1.fc16.i686 > via wext. > > I've two APs for tests. One is a Ubiquiti UniFi bgn (also Atheros/hostapd > based). No problems with this one so far. Works like a charm. > > The other one is my Soekris 4801 equipped with an > 00:0e.0 168c:001a Ethernet controller: Atheros Communications Inc. AR2413 > 802.11bg NIC (rev 01) > running on openwrt 10.x with hostapd. > > If I connect to this one and start eg. videostreaming it takes only a few > minutes and my machine gets completly unstable. Various applications crash, > sounds starts crackling, video gets artefacts. Also doing large downloads > helps to kill various components. gnome-shell, firefox, ... looks like > iwlwifi writes random memory. > > Scanresults from "iw wlan0 scan" for this AP: > BSS 00:80:48:xx:xx:xx (on wlan0) > TSF: 58415136285 usec (0d, 16:13:35) > freq: 2437 > beacon interval: 100 > capability: ESS Privacy ShortPreamble ShortSlotTime (0x0431) > signal: -45.00 dBm > last seen: 4490 ms ago > SSID: xxxx > Supported rates: 1.0* 2.0* 5.5* 6.0 9.0 11.0* 12.0 18.0 > DS Parameter set: channel 6 > ERP: <no flags> > Extended supported rates: 24.0 36.0 48.0 54.0 > WMM: * Parameter version 1 > * BE: CW 7-1023, AIFSN 2, TXOP 2048 usec > * BK: CW 15-1023, AIFSN 7 > * VI: CW 7-15, AIFSN 2, TXOP 3008 usec > * VO: acm CW 3-7, AIFSN 2, TXOP 1504 usec > RSN: * Version: 1 > * Group cipher: TKIP > * Pairwise ciphers: CCMP TKIP > * Authentication suites: PSK > * Capabilities: (0x0000) > > Usually I use CCMP only, but activated TKIP for testing purposes. But it > makes no difference at all. > > I activated debug output from iwlwifi and besides the recurring > > Dec 9 14:42:17 hpwb kernel: [ 616.473854] iwlwifi 0000:43:00.0: U iwlagn_request_scan Scanning while associated... > > Dec 9 14:42:17 hpwb kernel: [ 616.473866] iwlwifi 0000:43:00.0: U iwl_send_cmd_sync Attempting to send sync command REPLY_SCAN_CMD > > Dec 9 14:42:17 hpwb kernel: [ 616.473869] iwlwifi 0000:43:00.0: U iwl_send_cmd_sync Setting HCMD_ACTIVE for command REPLY_SCAN_CMD > > Dec 9 14:42:17 hpwb kernel: [ 616.476081] iwlwifi 0000:43:00.0: I iwl_tx_cmd_complete Clearing HCMD_ACTIVE for command REPLY_SCAN_CMD > ... I very often see stuff like... > > Dec 9 14:42:07 hpwb kernel: [ 606.751372] iwlwifi 0000:43:00.0: I iwl_force_reset force reset rejected > > Dec 9 14:42:13 hpwb kernel: [ 612.907705] iwlwifi 0000:43:00.0: I is_lq_table_valid Channel 6 is not an HT channel > > Dec 9 14:42:13 hpwb kernel: [ 612.932685] iwlwifi 0000:43:00.0: I is_lq_table_valid Channel 6 is not an HT channel > > Dec 9 14:42:17 hpwb kernel: [ 616.473816] iwlwifi 0000:43:00.0: I iwl_force_reset perform force reset (0) > > Dec 9 14:42:17 hpwb kernel: [ 616.473825] iwlwifi 0000:43:00.0: I iwl_force_rf_reset perform radio reset. > > Another difference between the two APs is that my soekris uses rekeying. I > don't have proof yet that it's the cause, but troubles often start after I > see.... > > Dec 9 14:47:23 hpwb kernel: [ 922.682961] iwlwifi 0000:43:00.0: I iwl_tx_cmd_complete Clearing HCMD_ACTIVE for command REPLY_SCAN_CMD > > Dec 9 14:47:23 hpwb kernel: [ 922.885333] iwlwifi 0000:43:00.0: I iwl_force_reset force reset rejected > > Dec 9 14:47:27 hpwb kernel: [ 926.672222] iwlwifi 0000:43:00.0: I iwl_force_reset perform force reset (0) > > Dec 9 14:47:27 hpwb kernel: [ 926.672233] iwlwifi 0000:43:00.0: I iwl_force_rf_reset perform radio reset. > > Dec 9 14:47:27 hpwb kernel: [ 926.672254] iwlwifi 0000:43:00.0: U iwlagn_request_scan Scanning while associated... > > Dec 9 14:47:27 hpwb kernel: [ 926.672265] iwlwifi 0000:43:00.0: U iwl_send_cmd_sync Attempting to send sync command REPLY_SCAN_CMD > > Dec 9 14:47:27 hpwb kernel: [ 926.672271] iwlwifi 0000:43:00.0: U iwl_send_cmd_sync Setting HCMD_ACTIVE for command REPLY_SCAN_CMD > > Dec 9 14:47:27 hpwb kernel: [ 926.674473] iwlwifi 0000:43:00.0: I iwl_tx_cmd_complete Clearing HCMD_ACTIVE for command REPLY_SCAN_CMD > > Dec 9 14:47:33 hpwb kernel: [ 932.686199] iwlwifi 0000:43:00.0: U iwl_send_add_sta Adding sta 0 (00:80:48:xx:xx:xx) synchronously > > Dec 9 14:47:33 hpwb kernel: [ 932.686209] iwlwifi 0000:43:00.0: U iwl_send_cmd_sync Attempting to send sync command REPLY_ADD_STA > > Dec 9 14:47:33 hpwb kernel: [ 932.686214] iwlwifi 0000:43:00.0: U iwl_send_cmd_sync Setting HCMD_ACTIVE for command REPLY_ADD_STA > > Dec 9 14:47:33 hpwb kernel: [ 932.686271] iwlwifi 0000:43:00.0: I iwl_process_add_sta_resp Processing response for adding station 0 > > Dec 9 14:47:33 hpwb kernel: [ 932.686278] iwlwifi 0000:43:00.0: I iwl_process_add_sta_resp REPLY_ADD_STA PASSED > > Dec 9 14:47:33 hpwb kernel: [ 932.686285] iwlwifi 0000:43:00.0: I iwl_sta_ucode_activate STA id 0 addr 00:80:48:xx:xx:xx already present in uCode (according to driver) > > Dec 9 14:47:33 hpwb kernel: [ 932.686294] iwlwifi 0000:43:00.0: I iwl_process_add_sta_resp Added station id 0 addr 00:80:48:xx:xx:xx > > Dec 9 14:47:33 hpwb kernel: [ 932.686302] iwlwifi 0000:43:00.0: I iwl_process_add_sta_resp Added station according to cmd buffer 00:80:48:xx:xx:xx > > Dec 9 14:47:33 hpwb kernel: [ 932.686313] iwlwifi 0000:43:00.0: I iwl_tx_cmd_complete Clearing HCMD_ACTIVE for command REPLY_ADD_STA > > Dec 9 14:47:33 hpwb kernel: [ 932.686423] iwlwifi 0000:43:00.0: U iwl_send_add_sta Adding sta 0 (00:80:48:xx:xx:xx) synchronously > > Dec 9 14:47:33 hpwb kernel: [ 932.686430] iwlwifi 0000:43:00.0: U iwl_send_cmd_sync Attempting to send sync command REPLY_ADD_STA > > Dec 9 14:47:33 hpwb kernel: [ 932.686437] iwlwifi 0000:43:00.0: U iwl_send_cmd_sync Setting HCMD_ACTIVE for command REPLY_ADD_STA > > Dec 9 14:47:33 hpwb kernel: [ 932.686487] iwlwifi 0000:43:00.0: I iwl_process_add_sta_resp Processing response for adding station 0 > > Dec 9 14:47:33 hpwb kernel: [ 932.686499] iwlwifi 0000:43:00.0: I iwl_process_add_sta_resp REPLY_ADD_STA PASSED > > Dec 9 14:47:33 hpwb kernel: [ 932.686509] iwlwifi 0000:43:00.0: I iwl_sta_ucode_activate STA id 0 addr 00:80:48:xx:xx:xx already present in uCode (according to driver) > > Dec 9 14:47:33 hpwb kernel: [ 932.686522] iwlwifi 0000:43:00.0: I iwl_process_add_sta_resp Added station id 0 addr 00:80:48:xx:xx:xx > > Dec 9 14:47:33 hpwb kernel: [ 932.686533] iwlwifi 0000:43:00.0: I iwl_process_add_sta_resp Added station according to cmd buffer 00:80:48:xx:xx:xx > > Dec 9 14:47:33 hpwb kernel: [ 932.686546] iwlwifi 0000:43:00.0: I iwl_tx_cmd_complete Clearing HCMD_ACTIVE for command REPLY_ADD_STA > > Dec 9 14:47:34 hpwb kernel: [ 933.835898] iwlwifi 0000:43:00.0: I iwl_force_reset perform force reset (0) > > Dec 9 14:47:34 hpwb kernel: [ 933.835908] iwlwifi 0000:43:00.0: I iwl_force_rf_reset perform radio reset. > > wpa_supplicant said: > WPA: Group rekeying completed with 00:80:48:xx:xx:xx [GTK=TKIP] > at that time. > > There're no crashdumps in dmesg! > > If you need more information or debug output please let me know. > > With kind regards, > Wolfgang Breyha
>From 0cb38d65efa0304e9a948fd7aef9c7d38ad8cbb9 Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy <wey-yi.w.guy@xxxxxxxxx> Date: Fri, 2 Dec 2011 07:33:57 -0800 Subject: [PATCH 08/15] iwlwifi: P2P is not enabled by default P2P still under development. it will not enabled by default, but user always can enable it manually for testing. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@xxxxxxxxx> --- drivers/net/wireless/iwlwifi/Kconfig | 16 ++++++++++++++++ drivers/net/wireless/iwlwifi/iwl-agn.c | 10 +++++++++- 2 files changed, 25 insertions(+), 1 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/Kconfig b/drivers/net/wireless/iwlwifi/Kconfig index 82c8cca..ae08498 100644 --- a/drivers/net/wireless/iwlwifi/Kconfig +++ b/drivers/net/wireless/iwlwifi/Kconfig @@ -111,3 +111,19 @@ config IWLWIFI_DEVICE_TESTMODE NL80211_TESTMODE. This provide the capabilities of enable user space validation applications to interacts with the device through the generic netlink message via NL80211_TESTMODE channel. + +config IWLWIFI_P2P + bool "iwlwifi experimental P2P support" + depends on IWLWIFI + help + This option enables experimental P2P support for some devices + based on microcode support. Since P2P support is still under + development, this option may even enable it for some devices + now that turn out to not support it in the future due to + microcode restrictions. + + To determine if your microcode supports the experimental P2P + offered by this option, check if the driver advertises AP + support when it is loaded. + + Say Y only if you want to experiment with P2P. diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 5021cc9..6dd1e10 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -1036,6 +1036,9 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context) priv->inst_evtlog_size = priv->cfg->base_params->max_event_log_size; priv->inst_errlog_ptr = pieces.inst_errlog_ptr; +#ifndef CONFIG_IWLWIFI_P2P + ucode_capa.flags &= ~IWL_UCODE_TLV_FLAGS_PAN; +#endif priv->new_scan_threshold_behaviour = !!(ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWSCAN); @@ -1057,7 +1060,6 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context) priv->sta_key_max_num = STA_KEY_MAX_NUM; priv->shrd->cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM; } - /* * figure out the offset of chain noise reset and gain commands * base on the size of standard phy calibration commands table size @@ -1709,6 +1711,12 @@ static void iwl_debug_config(struct iwl_priv *priv) #else "disabled\n"); #endif + dev_printk(KERN_INFO, bus(priv)->dev, "CONFIG_IWLWIFI_P2P " +#ifdef CONFIG_IWLWIFI_P2P + "enabled\n"); +#else + "disabled\n"); +#endif } int iwl_probe(struct iwl_bus *bus, const struct iwl_trans_ops *trans_ops, -- 1.7.0.4
