On Sun, Apr 07, 2013 at 07:23:17AM +0000, Grumbach, Emmanuel wrote: > > On Tue, Apr 02, 2013 at 07:11:12PM +0000, Grumbach, Emmanuel wrote: > > > > > > > > I'm trying to build my own wifi router, cobbling together a Debian > > > > (wheezy) box, hostapd (1.0) and an Intel 2230. I'm seeing various > > > > problems with the 2230 and I'm wondering if I'm mad for trying to use > > > > this card in AP mode (in which case is there an alternative Intel card I > > > > should use, or is an ath9k my best bet), or if it's worthwhile reporting > > > > the issues and trying fixes. > > > > > > > > I'm using 3.8.5 (and previously 3.8.4). I tried 3.9-rc4 briefly but it > > > > was unusable - as soon as there was any traffic I saw errors like: ... > Can you please try the patch attached? > > Note that I couldn't really test it so... > > Also, it seems that the best way to reproduce the issue is to have a > station disappear while TX AMPDU is working. I suspect that's being caused by the cell phones appearing briefly and then disappearing. I've applied the patch to 3.9-rc5 (and also "iwlwifi: dvm: don't send HCMD in restart flow" which I saw hit stable but isn't in rc5) and I've had the following WARNING: [ 8370.590990] iwlwifi 0000:04:00.0: I iwlagn_tx_agg_start Can proceed: ssn = next_recl = 2026 [ 8370.593327] iwlwifi 0000:04:00.0: U iwl_trans_pcie_txq_enable Activate queue 11 on FIFO 4 WrPtr: 234 [ 8372.504646] iwlwifi 0000:04:00.0: I iwlagn_tx_agg_start Can proceed: ssn = next_recl = 700 [ 8372.526891] iwlwifi 0000:04:00.0: U iwl_trans_pcie_txq_enable Activate queue 12 on FIFO 4 WrPtr: 188 [ 8381.218880] iwlwifi 0000:04:00.0: I iwlagn_tx_agg_stop Can proceed: ssn = next_recl = 2028 [ 8381.218912] iwlwifi 0000:04:00.0: U iwl_trans_pcie_txq_disable Deactivate queue 11 [ 8385.219756] iwlwifi 0000:04:00.0: I iwlagn_tx_agg_stop Can proceed: ssn = next_recl = 708 [ 8385.219788] iwlwifi 0000:04:00.0: U iwl_trans_pcie_txq_disable Deactivate queue 12 [ 8421.657189] iwlwifi 0000:04:00.0: I iwlagn_tx_agg_start Can proceed: ssn = next_recl = 196 [ 8422.646042] iwlwifi 0000:04:00.0: I iwlagn_tx_agg_flush Flush AGG: sta 4 tid 0 q 11 state 0 [ 8422.646301] ------------[ cut here ]------------ [ 8422.647227] WARNING: at drivers/net/wireless/iwlwifi/pcie/tx.c:1120 iwl_trans_pcie_txq_disable+0x45/0xb9 [iwlwifi]() [ 8422.648165] Hardware name: To be filled by O.E.M. [ 8422.649125] queue 11 not used [ 8422.649150] Modules linked in: sit tunnel4 ip6t_REJECT xt_LOG xt_limit nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables 8021q garp stp llc ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables dummy nls_utf8 nls_cp437 vfat fat loop rt2800usb rt2800lib rt2x00usb rt2x00lib crc_ccitt tda18271 lgdt3305 hid_generic em28xx_dvb dvb_core btusb bluetooth em28xx videobuf2_vmalloc videobuf2_memops videobuf2_core tveeprom v4l2_common videodev media joydev hid_aureal usbhid hid snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm arc4 snd_page_alloc kvm_intel iwldvm mac80211 iwlwifi kvm snd_seq crc32_pclmul crc32c_intel ghash_clmulni_intel snd_seq_device snd_timer xhci_hcd snd cfg80211 rfkill iTCO_wdt iTCO_vendor_support cryptd soundcore i2c_i801 lpc_ich mfd_core mei ehci_pci ehci_hcd usbcore usb_common acpi_cpufreq mperf processor evdev microcode fan thermal [ 8422.657942] Pid: 2038, comm: hostapd Not tainted 3.9.0-rc5 #2 [ 8422.659702] Call Trace: [ 8422.661460] [<ffffffff8102c007>] ? warn_slowpath_common+0x76/0x8c [ 8422.663291] [<ffffffff8102c0b5>] ? warn_slowpath_fmt+0x45/0x4a [ 8422.665130] [<ffffffffa024396f>] ? iwlagn_txfifo_flush+0x9d/0xa3 [iwldvm] [ 8422.667003] [<ffffffffa032d92d>] ? iwl_trans_pcie_txq_disable+0x45/0xb9 [iwlwifi] [ 8422.668911] [<ffffffffa0241913>] ? iwlagn_tx_agg_flush+0xc4/0xd9 [iwldvm] [ 8422.670820] [<ffffffffa023e82d>] ? iwlagn_mac_ampdu_action+0x1cb/0x2db [iwldvm] [ 8422.672754] [<ffffffffa01be4ae>] ? drv_ampdu_action+0xf2/0x148 [mac80211] [ 8422.674706] [<ffffffff8107ede1>] ? try_stop_cpus+0x42/0x53 [ 8422.676671] [<ffffffff8104f680>] ? should_resched+0x5/0x23 [ 8422.678687] [<ffffffffa01bef01>] ? ___ieee80211_stop_tx_ba_session+0x1b3/0x1db [mac80211] [ 8422.680739] [<ffffffff8104f680>] ? should_resched+0x5/0x23 [ 8422.682822] [<ffffffffa01bf30a>] ? __ieee80211_stop_tx_ba_session+0x31/0x4a [mac80211] [ 8422.684964] [<ffffffffa01bdf68>] ? ieee80211_sta_tear_down_BA_sessions+0x2d/0x58 [mac80211] [ 8422.687157] [<ffffffffa01ba1d3>] ? __sta_info_destroy+0x41/0x1e2 [mac80211] [ 8422.689368] [<ffffffffa01ba4de>] ? sta_info_destroy_addr_bss+0x35/0x56 [mac80211] [ 8422.691633] [<ffffffffa00baa8b>] ? nl80211_del_station+0x6c/0xc2 [cfg80211] [ 8422.693915] [<ffffffff81386476>] ? genl_rcv_msg+0x1b6/0x1ff [ 8422.696219] [<ffffffff813862c0>] ? genl_rcv+0x28/0x28 [ 8422.698532] [<ffffffff81385f83>] ? netlink_rcv_skb+0x36/0x7c [ 8422.700808] [<ffffffff813862b7>] ? genl_rcv+0x1f/0x28 [ 8422.703115] [<ffffffff81385aa5>] ? netlink_unicast+0xde/0x15e [ 8422.705447] [<ffffffff810f6f5f>] ? set_restore_sigmask+0x2d/0x2d [ 8422.707796] [<ffffffff81385db2>] ? netlink_sendmsg+0x28d/0x2b4 [ 8422.710111] [<ffffffff8104f680>] ? should_resched+0x5/0x23 [ 8422.712466] [<ffffffff81354616>] ? sock_sendmsg+0x4f/0x6c [ 8422.714770] [<ffffffff814044ab>] ? packet_recvmsg+0x469/0x47c [ 8422.717095] [<ffffffff810f6f5f>] ? set_restore_sigmask+0x2d/0x2d [ 8422.719447] [<ffffffff81354825>] ? __sys_sendmsg+0x1f2/0x284 [ 8422.721801] [<ffffffff8104f680>] ? should_resched+0x5/0x23 [ 8422.724180] [<ffffffff8141dc07>] ? _cond_resched+0x6/0x1a [ 8422.726589] [<ffffffff810468cc>] ? autoremove_wake_function+0x2a/0x2a [ 8422.729015] [<ffffffff810f93cc>] ? dentry_kill+0x121/0x12d [ 8422.731459] [<ffffffff810f981d>] ? dput+0xe6/0xf3 [ 8422.733909] [<ffffffff810ea73f>] ? __fput+0x192/0x1b9 [ 8422.736418] [<ffffffff810fdac0>] ? fget_light+0x2c/0x74 [ 8422.739611] [<ffffffff8135584c>] ? sys_sendmsg+0x39/0x57 [ 8422.742841] [<ffffffff81423852>] ? system_call_fastpath+0x16/0x1b [ 8422.746075] ---[ end trace dc0022bd7c6404b6 ]--- [ 8427.736757] iwlwifi 0000:04:00.0: I iwlagn_tx_agg_start Can proceed: ssn = next_recl = 734 [ 8427.744108] iwlwifi 0000:04:00.0: U iwl_trans_pcie_txq_enable Activate queue 11 on FIFO 4 WrPtr: 222 [ 8457.809811] iwlwifi 0000:04:00.0: I iwlagn_tx_agg_stop Can proceed: ssn = next_recl = 1595 [ 8457.809843] iwlwifi 0000:04:00.0: U iwl_trans_pcie_txq_disable Deactivate queue 11 [ 8487.759858] iwlwifi 0000:04:00.0: I iwlagn_tx_agg_start Can't proceed: ssn 1843, next_reclaimed = 1803 [ 8487.786678] iwlwifi 0000:04:00.0: I iwlagn_check_ratid_empty Can continue ADDBA flow ssn = next_recl = 1843 [ 8487.802696] iwlwifi 0000:04:00.0: U iwl_trans_pcie_txq_enable Activate queue 11 on FIFO 4 WrPtr: 51 Didn't seem to cause any actual issues - wifi has stayed up. J. -- Be Ye Not Lost Among Precepts of Order -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
