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Bug #659
open
arn fails to transmit traffic on some channels
Added by Albert Lee over 12 years ago. Updated about 12 years ago.
Status:
New
Priority:
Low
Assignee:
-
Category:
kernel
Start date:
2011-01-23
Due date:
% Done:
0%
Estimated time:
Difficulty:
Medium
Tags:
needs-triage
Gerrit CR:
External Bug:
Description
A 802.11n AP normally works fine with a client using arn on channel 1, but when configured to use channel 6 (which has another AP in this range), the client using arn is able to associate but any outgoing Ethernet frames are not received by the AP. snoop shows both incoming and outgoing traffic on the AP but no traffic sent from the client (ARP and DHCP/BOOTP requests) is ever received by the endpoints. Other clients are not affected. It's not clear if the problem is the channel specifically, or that it is also occupied by another AP.
Updated by Albert Lee over 12 years ago
I should mention that the tx power is also very low.
Here's the configuration; I believe ah_currentRD = 0x60 and ah_countryCode = 0 means it's using a U.S. regulatory configuration.
{
ah_magic = 0x19641014
ah_devid = 0x2b
ah_subvendorid = 0
ah_macVersion = 0xc0
ah_macRev = 0x2
ah_phyRev = 0xe0
ah_analog5GhzRev = 0xc0
ah_analog2GhzRev = 0
ah_sh = 0xffffff01729d8000
ah_sc = 0xffffff01b92db000
ah_opmode = 1 (ATH9K_M_STA)
ah_config = {
dma_beacon_response_time = 0x2
sw_beacon_response_time = 0xa
additional_swba_backoff = 0
ack_6mb = 0
cwm_ignore_extcca = 0
pcie_powersave_enable = 0
pcie_l1skp_enable = 0
pcie_clock_req = 0
pcie_waen = 0
pcie_power_reset = 0x100
pcie_restore = 0
analog_shiftreg = 0x1
ht_enable = 0x1
ofdm_trig_low = 0xc8
ofdm_trig_high = 0x1f4
cck_trig_high = 0xc8
cck_trig_low = 0x64
enable_ani = 0x1
noise_immunity_level = 0x4
ofdm_weaksignal_det = 0x1
cck_weaksignal_thr = 0
spur_immunity_level = 0x2
firstep_level = 0
rssi_thr_high = '('
rssi_thr_low = '\a'
diversity_control = 0
antenna_switch_swap = 0
serialize_regmode = 0
intr_mitigation = 0x1
spurmode = 0x2
spurchans = [
[ 0x8000, 0x8000 ]
[ 0x8000, 0x8000 ]
[ 0x8000, 0x8000 ]
[ 0x8000, 0x8000 ]
[ 0x8000, 0x8000 ]
]
}
ah_caps = {
hw_caps = 0x2f71db
wireless_modes = [ 0x8c, 0xc, 0, 0 ]
total_queues = 0xa
keycache_size = 0x80
low_5ghz_chan = 0x1338
high_5ghz_chan = 0x17d4
low_2ghz_chan = 0x908
high_2ghz_chan = 0xaac
num_mr_retries = 0x4
rts_aggr_limit = 0xffff
tx_chainmask = 0x1
rx_chainmask = 0x1
tx_triglevel_max = 0x3f
reg_cap = 0xbc0
num_gpio_pins = 0xa
num_antcfg_2ghz = 0x1
num_antcfg_5ghz = 0x1
}
ah_countryCode = 0
ah_flags = 0x1
ah_powerLimit = 0x3f
ah_maxPowerLevel = 0x13
ah_tpScale = 0
ah_currentRD = 0x60
ah_currentRDExt = 0x1f
ah_currentRDInUse = 0x10
ah_currentRD5G = 0x110
ah_currentRD2G = 0xa10
ah_iso = [ "NA" ]
ah_channels = [
{
channel = 0x96c
channelFlags = 0x300e0
privFlags = 0
maxRegTxPower = '\033'
maxTxPower = '?'
minTxPower = '?'
chanmode = 0x20080
CalValid = 0xe
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0xff89
antennaMax = '\006'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0x11, 0x12 ]
},
{
channel = 0x971
channelFlags = 0x300e0
privFlags = 0
maxRegTxPower = '\033'
maxTxPower = '?'
minTxPower = '?'
chanmode = 0x20080
CalValid = 0
oneTimeCalsDone = 0x1 (B_TRUE)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0xff89
antennaMax = '\006'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0x11, 0x12 ]
},
{
channel = 0x976
channelFlags = 0x300e0
privFlags = 0
maxRegTxPower = '\033'
maxTxPower = '?'
minTxPower = '?'
chanmode = 0x20080
CalValid = 0
oneTimeCalsDone = 0x1 (B_TRUE)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0xff89
antennaMax = '\006'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0x11, 0x12 ]
},
{
channel = 0x97b
channelFlags = 0x300e0
privFlags = 0
maxRegTxPower = '\033'
maxTxPower = '?'
minTxPower = '?'
chanmode = 0x20080
CalValid = 0
oneTimeCalsDone = 0x1 (B_TRUE)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0xff89
antennaMax = '\006'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0x11, 0x12 ]
},
{
channel = 0x980
channelFlags = 0x700e0
privFlags = 0
maxRegTxPower = '\033'
maxTxPower = '?'
minTxPower = '?'
chanmode = 0x20080
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0xff89
antennaMax = '\006'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0x11, 0x12 ]
},
{
channel = 0x985
channelFlags = 0x700e0
privFlags = 0
maxRegTxPower = '\033'
maxTxPower = '?'
minTxPower = '?'
chanmode = 0x20080
CalValid = 0
oneTimeCalsDone = 0x1 (B_TRUE)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0xff89
antennaMax = '\006'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0x11, 0x12 ]
},
{
channel = 0x98a
channelFlags = 0x700e0
privFlags = 0
maxRegTxPower = '\033'
maxTxPower = '?'
minTxPower = '?'
chanmode = 0x20080
CalValid = 0
oneTimeCalsDone = 0x1 (B_TRUE)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0xff89
antennaMax = '\006'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0x11, 0x12 ]
},
{
channel = 0x98f
channelFlags = 0x500e0
privFlags = 0
maxRegTxPower = '\033'
maxTxPower = '?'
minTxPower = '?'
chanmode = 0x40080
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0xff89
antennaMax = '\006'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0x11, 0x12 ]
},
{
channel = 0x994
channelFlags = 0x500e0
privFlags = 0
maxRegTxPower = '\033'
maxTxPower = '?'
minTxPower = '?'
chanmode = 0x40080
CalValid = 0
oneTimeCalsDone = 0x1 (B_TRUE)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0xff89
antennaMax = '\006'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0x11, 0x12 ]
},
{
channel = 0x999
channelFlags = 0x500e0
privFlags = 0
maxRegTxPower = '\033'
maxTxPower = '?'
minTxPower = '?'
chanmode = 0x40080
CalValid = 0
oneTimeCalsDone = 0x1 (B_TRUE)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0xff89
antennaMax = '\006'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0x11, 0x12 ]
},
{
channel = 0x99e
channelFlags = 0x500e0
privFlags = 0
maxRegTxPower = '\033'
maxTxPower = '?'
minTxPower = '?'
chanmode = 0x40080
CalValid = 0
oneTimeCalsDone = 0x1 (B_TRUE)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0xff89
antennaMax = '\006'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0x11, 0x12 ]
},
{
channel = 0
channelFlags = 0
privFlags = 0
maxRegTxPower = '\0'
maxTxPower = '\0'
minTxPower = '\0'
chanmode = 0
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0
antennaMax = '\0'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0, 0 ]
},
{
channel = 0
channelFlags = 0
privFlags = 0
maxRegTxPower = '\0'
maxTxPower = '\0'
minTxPower = '\0'
chanmode = 0
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0
antennaMax = '\0'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0, 0 ]
},
{
channel = 0
channelFlags = 0
privFlags = 0
maxRegTxPower = '\0'
maxTxPower = '\0'
minTxPower = '\0'
chanmode = 0
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0
antennaMax = '\0'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0, 0 ]
},
{
channel = 0
channelFlags = 0
privFlags = 0
maxRegTxPower = '\0'
maxTxPower = '\0'
minTxPower = '\0'
chanmode = 0
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0
antennaMax = '\0'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0, 0 ]
},
{
channel = 0
channelFlags = 0
privFlags = 0
maxRegTxPower = '\0'
maxTxPower = '\0'
minTxPower = '\0'
chanmode = 0
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0
antennaMax = '\0'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0, 0 ]
},
{
channel = 0
channelFlags = 0
privFlags = 0
maxRegTxPower = '\0'
maxTxPower = '\0'
minTxPower = '\0'
chanmode = 0
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0
antennaMax = '\0'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0, 0 ]
},
{
channel = 0
channelFlags = 0
privFlags = 0
maxRegTxPower = '\0'
maxTxPower = '\0'
minTxPower = '\0'
chanmode = 0
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0
antennaMax = '\0'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0, 0 ]
},
{
channel = 0
channelFlags = 0
privFlags = 0
maxRegTxPower = '\0'
maxTxPower = '\0'
minTxPower = '\0'
chanmode = 0
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0
antennaMax = '\0'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0, 0 ]
},
{
channel = 0
channelFlags = 0
privFlags = 0
maxRegTxPower = '\0'
maxTxPower = '\0'
minTxPower = '\0'
chanmode = 0
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0
antennaMax = '\0'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0, 0 ]
},
{
channel = 0
channelFlags = 0
privFlags = 0
maxRegTxPower = '\0'
maxTxPower = '\0'
minTxPower = '\0'
chanmode = 0
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0
antennaMax = '\0'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0, 0 ]
},
{
channel = 0
channelFlags = 0
privFlags = 0
maxRegTxPower = '\0'
maxTxPower = '\0'
minTxPower = '\0'
chanmode = 0
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0
antennaMax = '\0'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0, 0 ]
},
{
channel = 0
channelFlags = 0
privFlags = 0
maxRegTxPower = '\0'
maxTxPower = '\0'
minTxPower = '\0'
chanmode = 0
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0
antennaMax = '\0'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0, 0 ]
},
{
channel = 0
channelFlags = 0
privFlags = 0
maxRegTxPower = '\0'
maxTxPower = '\0'
minTxPower = '\0'
chanmode = 0
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0
antennaMax = '\0'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0, 0 ]
},
{
channel = 0
channelFlags = 0
privFlags = 0
maxRegTxPower = '\0'
maxTxPower = '\0'
minTxPower = '\0'
chanmode = 0
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0
antennaMax = '\0'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0, 0 ]
},
{
channel = 0
channelFlags = 0
privFlags = 0
maxRegTxPower = '\0'
maxTxPower = '\0'
minTxPower = '\0'
chanmode = 0
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0
antennaMax = '\0'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0, 0 ]
},
{
channel = 0
channelFlags = 0
privFlags = 0
maxRegTxPower = '\0'
maxTxPower = '\0'
minTxPower = '\0'
chanmode = 0
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0
antennaMax = '\0'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0, 0 ]
},
{
channel = 0
channelFlags = 0
privFlags = 0
maxRegTxPower = '\0'
maxTxPower = '\0'
minTxPower = '\0'
chanmode = 0
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0
antennaMax = '\0'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0, 0 ]
},
{
channel = 0
channelFlags = 0
privFlags = 0
maxRegTxPower = '\0'
maxTxPower = '\0'
minTxPower = '\0'
chanmode = 0
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0
antennaMax = '\0'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0, 0 ]
},
{
channel = 0
channelFlags = 0
privFlags = 0
maxRegTxPower = '\0'
maxTxPower = '\0'
minTxPower = '\0'
chanmode = 0
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0
antennaMax = '\0'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0, 0 ]
},
{
channel = 0
channelFlags = 0
privFlags = 0
maxRegTxPower = '\0'
maxTxPower = '\0'
minTxPower = '\0'
chanmode = 0
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0
antennaMax = '\0'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0, 0 ]
},
{
channel = 0
channelFlags = 0
privFlags = 0
maxRegTxPower = '\0'
maxTxPower = '\0'
minTxPower = '\0'
chanmode = 0
CalValid = 0
oneTimeCalsDone = 0 (0)
iCoff = '\0'
qCoff = '\0'
rawNoiseFloor = 0
antennaMax = '\0'
regDmnFlags = 0
conformanceTestLimit = [ 0, 0, 0 ]
},
... ]
ah_curchan = 0xffffff01ba6130dc
ah_nchan = 0xb
ah_isPciExpress = 0x1 (B_TRUE)
ah_txTrigLevel = 0x4
ah_rfsilent = 0
ah_rfkill_gpio = 0
ah_rfkill_polarity = 0
nfCalHist = [
{
nfCalBuffer = [ 0xff89, 0xff89, 0xff89, 0xff8a, 0xff8a ]
currIndex = 0x2
privNF = 0xff89
invalidNFcount = 0
},
{
nfCalBuffer = [ 0, 0, 0, 0, 0 ]
currIndex = 0x2
privNF = 0xff8a
invalidNFcount = 0x5
},
{
nfCalBuffer = [ 0, 0, 0, 0, 0 ]
currIndex = 0x2
privNF = 0xff8a
invalidNFcount = 0x5
},
{
nfCalBuffer = [ 0xff8a, 0xff8a, 0xff8a, 0xff8a, 0xff8a ]
currIndex = 0x2
privNF = 0xff8a
invalidNFcount = 0
},
{
nfCalBuffer = [ 0, 0, 0, 0, 0 ]
currIndex = 0x2
privNF = 0xff8a
invalidNFcount = 0x5
},
{
nfCalBuffer = [ 0, 0, 0, 0, 0 ]
currIndex = 0x2
privNF = 0xff8a
invalidNFcount = 0x5
},
]
}
Updated by Albert Lee about 12 years ago
- Difficulty set to Medium
- Tags set to needs-triage
Further investigation shows that the problem manifests as extremely low transmit power on some or all channels. I've tried backporting tx power related changes from later versions of Linux arn drivers, but haven't narrowed down the issue yet. There is embedded firmware in the driver which may need updating.
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