#450: big delays in 802.11b
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Reporter: peter | Owner:
Type: defect | Status: new
Priority: major | Milestone:
Component: madwifi: driver | Version: trunk
Resolution: | Keywords:
Patch_attached: 0 |
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Changes (by mrenzmann):
* priority: critical => major
Old description:
> big delays in 802.11b
> like 500ms and higher with small traffic around 300-500kbit/s, just with
> almost 0 traffic delays a good.
>
> athstats -i wifi1
> 1 hardware error interrupts
> 24378 tx management frames
> 125926 tx frames discarded prior to association
> 14235 tx failed due to too many retries
> 604331 long on-chip tx retries
> 6585 tx frames with no ack marked
> 1479454 tx frames with short preamble
> 49062 tx frames with an alternate rate
> 17836578 rx failed due to bad CRC
> 58680267 PHY errors
> 7 OFDM timing
> 58671604 CCK timing
> 8656 CCK restart
> 2145 periodic calibrations
> 133045 rate control checks
> 26 rate control raised xmit rate
> 384 rate control dropped xmit rate
> rssi of last ack: 35
> rssi of last rcv: 26
> 1 switched default/rx antenna
> Antenna profile:
> [1] tx 2114128 rx 2435394
> [2] tx 3228 rx 15237
>
> ath_hal: 0.9.16.16 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413,
> RF5413)
> ath_rate_onoe: 1.0 (svn 1456)
> ath_pci: 0.9.4.5 (svn 1456)
>
> wifi1: 11a rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
> wifi1: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
> wifi1: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps
> 24Mbps 36Mbps 48Mbps 54Mbps
> wifi1: turboG rates: 6Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
> wifi1: H/W encryption support: WEP AES AES_CCM TKIP
> wifi1: mac 5.9 phy 4.3 radio 3.6
> wifi1: Use hw queue 1 for WME_AC_BE traffic
> wifi1: Use hw queue 0 for WME_AC_BK traffic
> wifi1: Use hw queue 2 for WME_AC_VI traffic
> wifi1: Use hw queue 3 for WME_AC_VO traffic
> wifi1: Use hw queue 8 for CAB traffic
> wifi1: Use hw queue 9 for beacons
> wifi1: Atheros 5212: mem=0x80080000, irq=9
>
> It looks like problem with cck timing or that CRC error, it's running
> outdoor ap mode with
> athctrl -i wifi1 -d 10000
>
> most clients are ovislink 1120 or 5460
> same error occurs indoor on the table distances
>
> Thank you
New description:
big delays in 802.11b like 500ms and higher with small traffic around 300-
500kbit/s, just with almost 0 traffic delays a good.
{{{
athstats -i wifi1
1 hardware error interrupts
24378 tx management frames
125926 tx frames discarded prior to association
14235 tx failed due to too many retries
604331 long on-chip tx retries
6585 tx frames with no ack marked
1479454 tx frames with short preamble
49062 tx frames with an alternate rate
17836578 rx failed due to bad CRC
58680267 PHY errors
7 OFDM timing
58671604 CCK timing
8656 CCK restart
2145 periodic calibrations
133045 rate control checks
26 rate control raised xmit rate
384 rate control dropped xmit rate
rssi of last ack: 35
rssi of last rcv: 26
1 switched default/rx antenna
Antenna profile:
[1] tx 2114128 rx 2435394
[2] tx 3228 rx 15237
ath_hal: 0.9.16.16 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413,
RF5413)
ath_rate_onoe: 1.0 (svn 1456)
ath_pci: 0.9.4.5 (svn 1456)
wifi1: 11a rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
wifi1: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
wifi1: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps
24Mbps 36Mbps 48Mbps 54Mbps
wifi1: turboG rates: 6Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
wifi1: H/W encryption support: WEP AES AES_CCM TKIP
wifi1: mac 5.9 phy 4.3 radio 3.6
wifi1: Use hw queue 1 for WME_AC_BE traffic
wifi1: Use hw queue 0 for WME_AC_BK traffic
wifi1: Use hw queue 2 for WME_AC_VI traffic
wifi1: Use hw queue 3 for WME_AC_VO traffic
wifi1: Use hw queue 8 for CAB traffic
wifi1: Use hw queue 9 for beacons
wifi1: Atheros 5212: mem=0x80080000, irq=9
}}}
It looks like problem with cck timing or that CRC error, it's running
outdoor ap mode with
{{{athctrl -i wifi1 -d 10000}}}
most clients are ovislink 1120 or 5460
same error occurs indoor on the table distances
Thank you
--
Ticket URL: <http://madwifi.org/ticket/450>
MadWifi <http://madwifi.org/>
Multiband Atheros Driver for Wireless Fidelity
