I can confirm this bug. WPA networks appear to be extremely unstable in
Ubuntu Intrepid.
Apr 23 21:47:58 frogstar kernel: [98886.677063] [ cut here
]
Apr 23 21:47:58 frogstar kernel: [98886.677071] WARNING: at
/build/buildd/linux-2.6.27/include/../net/mac80211/rate.h:152
rs_get_rate+0xaf/0x4b
0 [iwl3945]()
Apr 23 21:47:58 frogstar kernel: [98886.677079] Modules linked in: aes_i586
aes_generic af_packet i915 drm binfmt_misc openafs(P) rfcomm bridge
stp bnep sco l2cap bluetooth ipv6 ppdev acpi_cpufreq cpufreq_stats
cpufreq_conservative cpufreq_powersave cpufreq_ondemand freq_table cpufreq_
userspace wmi sbs sbshc pci_slot iptable_filter ip_tables x_tables ext2 sbp2
parport_pc lp parport joydev pcmcia serio_raw evdev snd_hda_intel
psmouse snd_pcm_oss snd_mixer_oss arc4 ecb crypto_blkcipher snd_pcm pcspkr
iwl3945 sdhci_pci rfkill snd_seq_dummy container sdhci mac80211 mmc_
core video output yenta_socket rsrc_nonstatic tifm_7xx1 led_class snd_seq_oss
pcmcia_core tifm_core snd_seq_midi snd_rawmidi cfg80211 snd_seq_m
idi_event snd_seq iTCO_wdt iTCO_vendor_support ac battery button snd_timer
snd_seq_device snd intel_agp agpgart shpchp pci_hotplug soundcore sn
d_page_alloc ext3 jbd mbcache sd_mod sr_mod crc_t10dif cdrom sg ata_generic
pata_acpi ata_piix e100 libata mii ohci1394 scsi_mod dock ieee1394
ehci_hcd uhci_hcd usbcore t
Apr 23 21:47:58 frogstar kernel: ermal processor fan fbcon tileblit font
bitblit softcursor fuse
Apr 23 21:47:58 frogstar kernel: [98886.677326] Pid: 2830, comm: iwl3945
Tainted: PW 2.6.27-11-generic #1
Apr 23 21:47:58 frogstar kernel: [98886.677334] [] ? printk+0x1d/0x22
Apr 23 21:47:58 frogstar kernel: [98886.677349] []
warn_on_slowpath+0x59/0x90
Apr 23 21:47:58 frogstar kernel: [98886.677374] [] ?
load_balance_newidle+0x97/0x270
Apr 23 21:47:58 frogstar kernel: [98886.677387] [] ?
__switch_to+0xa6/0x160
Apr 23 21:47:58 frogstar kernel: [98886.677398] [] ?
finish_task_switch+0x2b/0xe0
Apr 23 21:47:58 frogstar kernel: [98886.677409] [] ?
schedule+0x429/0x790
Apr 23 21:47:58 frogstar kernel: [98886.677422] [] ?
account_scheduler_latency+0xe/0x220
Apr 23 21:47:58 frogstar kernel: [98886.677433] [] ?
number+0x291/0x2a0
Apr 23 21:47:58 frogstar kernel: [98886.677448] [] ?
__enqueue_entity+0xd4/0x100
Apr 23 21:47:58 frogstar kernel: [98886.677464] [] ?
sta_info_get+0xb/0x60 [mac80211]
Apr 23 21:47:58 frogstar kernel: [98886.677502] []
rs_get_rate+0xaf/0x4b0 [iwl3945]
Apr 23 21:47:58 frogstar kernel: [98886.677522] [] ?
enqueue_entity+0xda/0x2f0
Apr 23 21:47:58 frogstar kernel: [98886.677533] [] ?
getnstimeofday+0x4b/0x100
Apr 23 21:47:58 frogstar kernel: [98886.677545] [] ?
apic_wait_icr_idle+0x15/0x40
Apr 23 21:47:58 frogstar kernel: [98886.677561] [] ?
sta_info_get+0xb/0x60 [mac80211]
Apr 23 21:47:58 frogstar kernel: [98886.677607] []
rate_control_get_rate+0x71/0x130 [mac80211]
Apr 23 21:47:58 frogstar kernel: [98886.677643] []
invoke_tx_handlers+0x467/0x630 [mac80211]
Apr 23 21:47:58 frogstar kernel: [98886.677680] []
ieee80211_tx+0x7d/0x1b0 [mac80211]
Apr 23 21:47:58 frogstar kernel: [98886.677710] [] ?
pskb_expand_head+0xe9/0x150
Apr 23 21:47:58 frogstar kernel: [98886.677732] []
ieee80211_master_start_xmit+0x144/0x210 [mac80211]
Apr 23 21:47:58 frogstar kernel: [98886.677764] []
dev_hard_start_xmit+0x16b/0x1c0
Apr 23 21:47:58 frogstar kernel: [98886.66] []
__qdisc_run+0x1b5/0x200
Apr 23 21:47:58 frogstar kernel: [98886.677787] []
dev_queue_xmit+0x2e7/0x3f0
Apr 23 21:47:58 frogstar kernel: [98886.677796] [] ?
__alloc_skb+0x52/0x110
Apr 23 21:47:58 frogstar kernel: [98886.677817] []
ieee80211_sta_tx+0x74/0x90 [mac80211]
Apr 23 21:47:58 frogstar kernel: [98886.677852] []
ieee80211_send_auth+0x11f/0x150 [mac80211]
Apr 23 21:47:58 frogstar kernel: [98886.677885] []
ieee80211_sta_work+0x2e0/0x380 [mac80211]
Apr 23 21:47:58 frogstar kernel: [98886.677919] [] ?
ieee80211_sta_work+0x0/0x380 [mac80211]
Apr 23 21:47:58 frogstar kernel: [98886.677951] []
run_workqueue+0x95/0x160
Apr 23 21:47:58 frogstar kernel: [98886.677965] [] ?
finish_wait+0x16/0x70
Apr 23 21:47:58 frogstar kernel: [98886.677975] []
worker_thread+0x88/0xf0
Apr 23 21:47:58 frogstar kernel: [98886.677984] [] ?
autoremove_wake_function+0x0/0x50
Apr 23 21:47:58 frogstar kernel: [98886.677997] [] ?
worker_thread+0x0/0xf0
Apr 23 21:47:58 frogstar kernel: [98886.678008] [] kthread+0x41/0x80
Apr 23 21:47:58 frogstar kernel: [98886.678018] [] ? kthread+0x0/0x80
Apr 23 21:47:58 frogstar kernel: [98886.678029] []
kernel_thread_helper+0x7/0x10
Apr 23 21:47:58 frogstar kernel: [98886.678039] ===
Apr 23 21:47:58 frogstar kernel: [98886.678045] ---[ end trace 221cb2b2b9a75721
]---
--
[iwl3945] Wireless connection dies in mac80211/rate.h:152 (2.6.27-11)
https://bugs.launchpad.net/bugs/322204
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ubun