Bug#474617: network down and ksoftirqd takes 100% of CPU

[alban denat]

Subject: madwifi-source: network down and ksoftirqd take 100% of CPU
Package: madwifi-source
Version: 1:0.9.4~rc2-1
Severity: normal

*** Please type your report below this line ***
Hi,

Network down often and ksoftirqd0/1 take 100% of CPU.
I'm using a netgear wpn311 wireless PCI adapter.

lspci -v
02:01.0 Ethernet controller: Atheros Communications, Inc. AR5212/AR5213
    Multiprotocol MAC/baseband processor (rev 01)
    Subsystem: Netgear Unknown device 5e00
    Flags: bus master, medium devsel, latency 168, IRQ 16
    Memory at fdee0000 (32-bit, non-prefetchable)
    [size=64K]
    Capabilities: <access denied>
    Kernel driver in use: ath_pci
    Kernel modules: ath_pci,ath5k


dmesg
ath_hal: module license 'Proprietary' taints kernel.
ath_hal: 0.9.18.0 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413,
RF5413)
wlan: 0.9.4
ath_pci: 0.9.4
ACPI: PCI Interrupt 0000:02:01.0[A] -> GSI 16 (level, low) -> IRQ 16
ath_rate_sample: 1.2 (0.9.4)
wifi0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
wifi0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps
24Mbps 36Mbps 48Mbps 54Mbps
wifi0: turboG rates: 6Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
wifi0: H/W encryption support: WEP AES AES_CCM TKIP
wifi0: mac 7.9 phy 4.5 radio 5.6
wifi0: Use hw queue 1 for WME_AC_BE traffic
wifi0: Use hw queue 0 for WME_AC_BK traffic
wifi0: Use hw queue 2 for WME_AC_VI traffic
wifi0: Use hw queue 3 for WME_AC_VO traffic
wifi0: Use hw queue 8 for CAB traffic
wifi0: Use hw queue 9 for beacons
wifi0: Atheros 5212: mem=0xfdee0000, irq=16


when the problem occurs, dmesg return this message:
wifi0: rx FIFO overrun; resetting
wifi0: ath_reset: unable to reset hardware: 'Hardware didn't respond as
expected' (HAL status 3)

I do "/etc/init.d/network restart" to resolve the problem, network restart
and ksoftirq returns to sleeping mode.

This problem happens 5 to 6 times during the day.

This is the same problem that this ticket: http://madwifi.org/ticket/1835



-- System Information:
Debian Release: lenny/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.24-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages madwifi-source depends on:
ii  bzip2                         1.0.5-0.1  high-quality block-sorting 
file co
ii  debhelper                     6.0.5      helper programs for 
debian/rules
ii  module-assistant              0.10.11.0  tool to make module package 
creati

madwifi-source recommends no packages.

-- no debconf information