Bug 720662

Summary:	iwl4965 wireless connection regression after update to kernel-2.6.35.13-93
Product:	[Fedora] Fedora	Reporter:	Stanislaw Gruszka <sgruszka>
Component:	kernel	Assignee:	Stanislaw Gruszka <sgruszka>
Status:	CLOSED INSUFFICIENT_DATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	14	CC:	aquini, gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda, mwringe
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-09-08 14:13:30 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:

Description Stanislaw Gruszka 2011-07-12 12:33:47 UTC

Description of problem:
kernel-2.6.35.13-93.fc14 is essentially unusable when using wifi (extremely
slow speeds, in terms of bytes/second). Tested on an Fedora 14 x86_64 laptop
with intel 4965 wifi. kernel-2.6.35.13-92 works fine until the module crashes
and the system needs to be rebooted.

Comment 1 Stanislaw Gruszka 2011-07-12 12:39:41 UTC

Matt, update consist from 3 small patches:

Patch14000: iwlagn-fix-Received-BA-when-not-expected.patch
Patch14001: iwlagn-use-cts-to-self-protection-on-5000-adapters-series.patch
Patch14002: iwlwifi-add_ack_plpc_check-module-parameters.patch

As far, I'm not seeing anything suspicious in any of them. Could you build kernel from source, revert this patch one by one and tell exactly which one is causing regression in your system.

Comment 2 Stanislaw Gruszka 2011-08-18 08:48:37 UTC

If building kernel from source is difficult/time-consuming for you, perhaps you could build compat-wireless package i.e this one:

http://wireless.kernel.org/download/compat-wireless-2.6/compat-wireless-2011-08-08.tar.bz2

It allow to install wireless drivers from upstream on older kernel (see README file). Then you can check if things works on upstream drivers. If not work, we then could patch compat-wireless code to debug this problem.

Comment 3 Stanislaw Gruszka 2011-09-08 14:13:30 UTC

Matt, I'm closing bug with INSUFFICIENT_DATA resolution, reopen it if requested info will be available.