Same here with with Karmic on an Acer Aspire 7520 which sports an AR5007EG
which is currently incorrectly identified as an AR5001?
Symptoms: Wireless is up and running essentially out of the box, however on
transfers, performance is very poor (500KB/s). Samba stalls every time with
larger files (100mb+). IRC and FTP are similarly affected although they don't
stall like Samba. Haven't tested much else, NFS is next.
lspci -vv:
Atheros Communications Inc. AR5001 Wireless Network Adapter (rev 01)
Subsystem: AMBIT Microsystem Corp. Device 0428
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 19
Region 0: Memory at d0400000 (64-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: ath5k
Kernel modules: ath5k
dmesg | grep ath:
[ 2.338089] device-mapper: multipath: version 1.1.0 loaded
[ 2.338092] device-mapper: multipath round-robin: version 1.0.0 loaded
[ 13.525606] ath5k 0000:05:00.0: PCI INT A -> Link[LK4E] -> GSI 19
(level, low) -> IRQ 19
[ 13.525615] ath5k 0000:05:00.0: setting latency timer to 64
[ 13.525666] ath5k 0000:05:00.0: registered as 'phy0'
[ 13.738762] ath: EEPROM regdomain: 0x65
[ 13.738765] ath: EEPROM indicates we should expect a direct regpair map
[ 13.738770] ath: Country alpha2 being used: 00
[ 13.738772] ath: Regpair used: 0x65
[ 14.057992] Registered led device: ath5k-phy0::rx
[ 14.058015] Registered led device: ath5k-phy0::tx
[ 14.058019] ath5k phy0: Atheros AR2425 chip found (MAC: 0xe2, PHY: 0x70)
[ 344.125243] ath5k phy0: unsupported jumbo
[ 357.824179] ath5k phy0: unsupported jumbo
[ 513.273487] ath5k phy0: unsupported jumbo
[ 1052.001365] ath5k phy0: unsupported jumbo
[ 1092.851174] ath5k phy0: unsupported jumbo
--
juanty ath5k : disconnection / slow network
https://bugs.launchpad.net/bugs/369005
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