Bug 577003

Summary:	5ghz N connectivity falls over with iwlagn 0000:0c:00.0: iwl_tx_agg _start on ra = 00:22:6b:68:89:f5 tid = 0
Product:	[Fedora] Fedora	Reporter:	Jesse Keating <jkeating>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED DUPLICATE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	low
Version:	12	CC:	anton, dcantrell, dougsland, gansalmon, itamar, jonathan, joshua.bakerlepain, kernel-maint, pekkas, sgruszka
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:
Clones:	580218 (view as bug list)		Environment:
Last Closed:	2010-04-07 07:44:10 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	580218

Description Jesse Keating 2010-03-25 20:16:37 UTC

2.6.32.10-83.fc12.x86_64 broke, 2.6.32.9 was working.

F13 kernels are also broken, potentially in a different way.

Comment 1 Jesse Keating 2010-03-25 23:16:21 UTC

 <cebbert>       this got added in .10: http://git.kernel.org/?p=
 linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff_plain;h=5e2f75b8993a0d83d46
 9388b50716dd5551f2eb4
 Mar 18 20:07:19 <Oxf13> yeah, I think .9 worked, and .10 broke

Comment 2 Pekka Savola 2010-03-26 13:01:00 UTC

I think I'm probably seeing the same thing: kernel-2.6.32.10-90.fc12.i686 broke, going back to 2.6.32.9-70.fc12.i686 was OK.  Network works for something like 2-3 minutes, after which ARP requests for default gw no longer get response. I see some inbound packets.  After reassociating (clicking 'eduroam' SSID again in NM) it works again for a couple of minutes.

FWIW, I get the $SUBJECT dmesg message in both kernels, but 2.6.32.9 works fine regardless of that.

The driver:

03:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN [Kedron] Network Connection (rev 61)
	Subsystem: Intel Corporation Lenovo ThinkPad T61
	Physical Slot: 3
	Flags: bus master, fast devsel, latency 0, IRQ 29
	Memory at f7f00000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: [c8] Power Management version 3
	Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
	Capabilities: [e0] Express Endpoint, MSI 00
	Capabilities: [100] Advanced Error Reporting
	Capabilities: [140] Device Serial Number 00-21-5c-ff-ff-62-a7-75
	Kernel driver in use: iwlagn
	Kernel modules: iwlagn

HTH.

Comment 3 Stanislaw Gruszka 2010-04-07 07:44:10 UTC

This bug is a duplicate, problems should be solved in -94 kernel:
http://koji.fedoraproject.org/koji/buildinfo?buildID=164636

(In reply to comment #0)
> F13 kernels are also broken, potentially in a different way.    

Please open new F13 bugzilla and assign it to me. Thanks. 

(In reply to comment #2)
> I think I'm probably seeing the same thing: kernel-2.6.32.10-90.fc12.i686
> broke, going back to 2.6.32.9-70.fc12.i686 was OK.  Network works for something
> like 2-3 minutes, after which ARP requests for default gw no longer get
> response. I see some inbound packets.  After reassociating (clicking 'eduroam'
> SSID again in NM) it works again for a couple of minutes.

Please open new bug (+ assign to me) if this still happens on uptodate kernels. Thanks.

*** This bug has been marked as a duplicate of bug 578663 ***

Comment 4 Pekka Savola 2010-04-07 11:00:55 UTC

I can confirm that testing -94 appears to have fixed my problem.