Btw I have that in dmesg. ------------[ cut here ]------------ WARNING: at /home/lesiuk/carl9170/compat-wireless-2011-03-31/drivers/net/wireless/ath/carl9170/tx.c:1301 carl9170_op_tx+0x4b2/0x663 [carl9170]() Hardware name: hp t5000 series Modules linked in: ipv6 iptable_filter ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 ipt_addrtype xt_dscp xt_string xt_multiport xt_hashlimit xt_conntrack xt_DSCP xt_NFQUEUE xt_mark xt_connmark nf_conntrack ip_tables x_tables aes_i586 aes_generic arc4 ecb snd_intel8x0 ar9170usb snd_ac97_codec ac97_bus tpm_tis snd_pcm carl9170 mac80211 ath cfg80211 sis_agp rfkill tpm snd_timer thermal via_rhine tpm_bios ppdev rtc_cmos shpchp i2c_sis96x snd processor fan i2c_core rtc_core thermal_sys parport_pc pcspkr snd_page_alloc serio_raw pci_hotplug mii agpgart rtc_lib button tg3 libphy e1000 fuse xfs exportfs nfs auth_rpcgss nfs_acl lockd sunrpc jfs raid10 dm_snapshot dm_crypt dm_mirror dm_region_hash dm_log dm_mod scsi_wait_scan sl811_hcd usbhid ohci_hcd ssb mmc_core uhci_hcd usb_storage ehci_hcd usbcore aic94xx libsas lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm megaraid aacraid sx8 DAC960 cciss 3w_9xxx 3w_xxxx mptsas scsi_transport_sas mptfc scsi_transport_fc scsi_tgt mptspi mptscsih mptbase atp870u dc395x qla1280 imm parport dmx3191d sym53c8xx qlogicfas408 gdth advansys initio BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg pdc_adma sata_inic162x sata_mv ata_piix ahci libahci sata_qstor sata_vsc sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil sata_promise pata_pcmcia pcmcia pcmcia_core Pid: 12166, comm: rtorrent Not tainted 2.6.38-gentoo-r1 #1 Call Trace: [<c012ee27>] ? warn_slowpath_common+0x65/0x7a [<cf8e7197>] ? carl9170_op_tx+0x4b2/0x663 [carl9170] [<c012ee4b>] ? warn_slowpath_null+0xf/0x13 [<cf8e7197>] ? carl9170_op_tx+0x4b2/0x663 [carl9170] [<cfb059ff>] ? __ieee80211_tx+0x140/0x184 [mac80211] [<cfb05aa3>] ? ieee80211_tx+0x60/0x6d [mac80211] [<cfb065b0>] ? ieee80211_tx_pending+0xe0/0x1a3 [mac80211] [<c013321f>] ? tasklet_action+0x67/0xcd [<c0133fee>] ? __do_softirq+0x9c/0x146 [<c0133f52>] ? __do_softirq+0x0/0x146 <IRQ> [<c0133c16>] ? irq_exit+0x29/0x2b [<c01037cf>] ? do_IRQ+0x7c/0x90 [<c0102d69>] ? common_interrupt+0x29/0x30 ---[ end trace 44624f1ffb767c43 ]--- ------------[ cut here ]------------ WARNING: at /home/lesiuk/carl9170/compat-wireless-2011-03-31/drivers/net/wireless/ath/carl9170/tx.c:1305 carl9170_op_tx+0x4f2/0x663 [carl9170]() Hardware name: hp t5000 series Modules linked in: ipv6 iptable_filter ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 ipt_addrtype xt_dscp xt_string xt_multiport xt_hashlimit xt_conntrack xt_DSCP xt_NFQUEUE xt_mark xt_connmark nf_conntrack ip_tables x_tables aes_i586 aes_generic arc4 ecb snd_intel8x0 ar9170usb snd_ac97_codec ac97_bus tpm_tis snd_pcm carl9170 mac80211 ath cfg80211 sis_agp rfkill tpm snd_timer thermal via_rhine tpm_bios ppdev rtc_cmos shpchp i2c_sis96x snd processor fan i2c_core rtc_core thermal_sys parport_pc pcspkr snd_page_alloc serio_raw pci_hotplug mii agpgart rtc_lib button tg3 libphy e1000 fuse xfs exportfs nfs auth_rpcgss nfs_acl lockd sunrpc jfs raid10 dm_snapshot dm_crypt dm_mirror dm_region_hash dm_log dm_mod scsi_wait_scan sl811_hcd usbhid ohci_hcd ssb mmc_core uhci_hcd usb_storage ehci_hcd usbcore aic94xx libsas lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm megaraid aacraid sx8 DAC960 cciss 3w_9xxx 3w_xxxx mptsas scsi_transport_sas mptfc scsi_transport_fc scsi_tgt mptspi mptscsih mptbase atp870u dc395x qla1280 imm parport dmx3191d sym53c8xx qlogicfas408 gdth advansys initio BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg pdc_adma sata_inic162x sata_mv ata_piix ahci libahci sata_qstor sata_vsc sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil sata_promise pata_pcmcia pcmcia pcmcia_core Pid: 12166, comm: rtorrent Tainted: G W 2.6.38-gentoo-r1 #1 Call Trace: [<c012ee27>] ? warn_slowpath_common+0x65/0x7a [<cf8e71d7>] ? carl9170_op_tx+0x4f2/0x663 [carl9170] [<c012ee4b>] ? warn_slowpath_null+0xf/0x13 [<cf8e71d7>] ? carl9170_op_tx+0x4f2/0x663 [carl9170] [<cfb059ff>] ? __ieee80211_tx+0x140/0x184 [mac80211] [<cfb05aa3>] ? ieee80211_tx+0x60/0x6d [mac80211] [<cfb065b0>] ? ieee80211_tx_pending+0xe0/0x1a3 [mac80211] [<c013321f>] ? tasklet_action+0x67/0xcd [<c0133fee>] ? __do_softirq+0x9c/0x146 [<c0133f52>] ? __do_softirq+0x0/0x146 <IRQ> [<c0133c16>] ? irq_exit+0x29/0x2b [<c01037cf>] ? do_IRQ+0x7c/0x90 [<c0102d69>] ? common_interrupt+0x29/0x30 ---[ end trace 44624f1ffb767c44 ]--- 2011/4/14 Damian Lesiuk <lesiuk@xxxxxxxxx>: > I have draft N router next to that device. > He is working at 1 channel. I can easily reach 100 mbps with him. > > I changed channel to 11 and I have MSC 5. > > I have Azurewave NB290 in my notebook. > But I tested it also with Atheros 9280 and connection here was very > bad (8 mbps). > > 2011/4/14 Helmut Schaa <helmut.schaa@xxxxxxxxxxxxxx>: >> On Thu, Apr 14, 2011 at 4:40 PM, Damian Lesiuk <lesiuk@xxxxxxxxx> wrote: >>> uniwersytecka-server ~ # iw wlan0 station dump >>> Station 74:f0:6d:33:ea:00 (on wlan0) >>> Â Â Â inactive time: Â20 ms >>> Â Â Â rx bytes: Â Â Â 5043668 >>> Â Â Â rx packets: Â Â 9305 >>> Â Â Â tx bytes: Â Â Â 13762256 >>> Â Â Â tx packets: Â Â 11634 >>> Â Â Â signal: Â Â Â Â -31 dBm >>> Â Â Â tx bitrate: Â Â 65.0 MBit/s MCS 7 >>> >>> So it helped in some way. >>> Why that network isn't 300 mbps? >> >> 300mbps is only possible in HT40 mode. However, hostapd will disable >> HT40 if it detects >> an other HT40 AP on an overlapping channel (in your case anything >> !=7). This is also >> in accordance with 802.11n-2009. >> >> Hostapd will print "40 MHz pri/sec mismatch with BSS ..." in that case. >> >> Furthermore, it seems that the station 74:f0:6d:33:ea:00 isn't capable >> of using multiple >> spacial streams and thus is limited to MCS7. What client device is this? >> >> Helmut >> > -- 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