iwl4965 reports Microcode SW error

Bug #195155 reported by Elie De Brauwer on 2008-02-24
Affects Status Importance Assigned to Milestone
Fix Released
linux (Ubuntu)

Bug Description

When running the hardy development with the latest update, i was using the wireless connection on a lenovo thinkpad r61

with the following network interface:

03:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN Network Connection (rev 61)
 Subsystem: Intel Corporation Lenovo ThinkPad T61
 Flags: bus master, fast devsel, latency 0, IRQ 215
 Memory at df2fe000 (64-bit, non-prefetchable) [size=8K]
 Capabilities: <access denied>

it has been spawning these messages

[ 1258.273012] wmaster0: RX WEP frame with unknown keyidx 0 (A1=00:1d:e0:6f:b6:cf A2=00:14:bf:8a:1b:c3 A3=00:14:bf:8a:1b:c1)

for quite some time (but those are reported in another bug (see bug 194662 for those), but all of a sudden the link gave up:

[ 1271.259286] iwl4965: Microcode SW error detected. Restarting 0x2000000.
[ 1274.233604] iwl4965: Can't stop Rx DMA.

Offcourse i wasn't particularly happy with this so i tried an rmmod/modprobe:

[ 1603.957917] ACPI: PCI interrupt for device 0000:03:00.0 disabled
[ 1617.135293] iwl4965: Intel(R) Wireless WiFi Link 4965AGN driver for Linux, 1.2.0
[ 1617.135302] iwl4965: Copyright(c) 2003-2007 Intel Corporation
[ 1617.137427] ACPI: PCI Interrupt 0000:03:00.0[A] -> GSI 17 (level, low) -> IRQ 21
[ 1617.137461] PCI: Setting latency timer of device 0000:03:00.0 to 64
[ 1617.137500] iwl4965: Detected Intel Wireless WiFi Link 4965AGN
[ 1617.382199] iwl4965: Tunable channels: 13 802.11bg, 19 802.11a channels
[ 1617.383494] wmaster0: Selected rate control algorithm 'iwl-4965-rs'
[ 1617.423309] ADDRCONF(NETDEV_UP): wlan0: link is not ready

but that wasn't willing to let me back in either, my solution has been a reboot. I've only got this laptop recently so I haven't been able to do some thorough testing on the wlan, but i've been able to use it for a couple of hours before without these troubles and it's also the first time that i noticed these problems occuring.

Elie De Brauwer (elie) wrote :

edb@lapedb:~$ uname -a
Linux lapedb 2.6.24-8-generic #1 SMP Thu Feb 14 20:40:45 UTC 2008 i686 GNU/Linux

(For what it's worth)

Hi Elie,

I'm actually reassigning this to the 'linux' source package with is the Hardy kernel source package. 'linux-source-2.6.22' was Gutsy's kernel source package name. Care to test with the latest 2.6.24-11 Hardy kernel? If the issue still exists, per the kernel team's bug policy, can you please attach the following information. Please be sure to attach each file as a separate attachment.

* uname -a > uname-a.log
* cat /proc/version_signature > version.log
* dmesg > dmesg.log
* sudo lspci -vvnn > lspci-vvnn.log

For more information regarding the kernel team bug policy, please refer to https://wiki.ubuntu.com/KernelTeamBugPolicies . Thanks again and we appreciate your help and feedback.

Changed in linux-source-2.6.22:
status: New → Incomplete
Michael R. Head (burner) wrote :

I've started seeing this today with the 2.6.24-12 kernel.

Apparently, it's fixed in the 1.2.1 release of the iwl drivers: http://bughost.org/bugzilla/show_bug.cgi?id=1090

Michael R. Head (burner) wrote :
Michael R. Head (burner) wrote :
Michael R. Head (burner) wrote :
Michael R. Head (burner) wrote :
Changed in linux:
status: Unknown → Fix Released
Nicolas Diogo (nicolasdiogo) wrote :


after updating my kernel to:
 2.6.24-12-generic #1 SMP Wed Mar 12 22:31:43 UTC 2008 x86_64 GNU/Linux

my wireless connection no longer works.
i am using a iwl4965 on a t61p

i hope you get to sort this problem.



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