Bug 352221

Summary: iwl4965 device not detected on first load of iwl4965 module
Product: [Fedora] Fedora Reporter: Jes Sorensen <jes.sorensen>
Component: kernelAssignee: John W. Linville <linville>
Status: CLOSED RAWHIDE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: low    
Version: 8CC: cebbert, davej
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2007-10-29 13:07:27 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:
Attachments:
Description Flags
output of lspci -vv
none
Patch fixing the problem none

Description Jes Sorensen 2007-10-25 13:15:51 UTC 
Description of problem:

iwl4965 driver in latest FC8T3 kernel does not detect the interface
on first load of module, preventing wireless network access. If I
unload the module and reload it, my network interface is detected.

Version-Release number of selected component (if applicable):
2.6.23-1-31.fc8

How reproducible:
Every time

Steps to Reproduce:
1. Boot system
2. As root - rmmod iwl4965
3. As root - modprobe iwl4965

Actual results:


Expected results:


Additional info:

This problem is on an brand new Toshiba Portege R500 laptop, dual core x86_64.
Comment 1 Jes Sorensen 2007-10-25 13:15:51 UTC 
Created attachment 237351 [details]
output of lspci -vv
Comment 2 Jes Sorensen 2007-10-26 15:23:02 UTC 
Created attachment 239211 [details]
Patch fixing the problem

Ok, here's a patch to fix the problem.

The problem was that the driver didn't clear all interrupts in the 
chip before enabling interrupts and on my laptop it ended up taking
the interrupt long before the driver was ready to handle it.

Cheers,
Jes
Comment 3 John W. Linville 2007-10-26 21:11:32 UTC 
Would you mind giving these kernels a quick test?

   http://koji.fedoraproject.org/koji/buildinfo?buildID=22511
Comment 4 Jes Sorensen 2007-10-29 15:06:31 UTC 
Your kernel seems to do the trick here - thanks!

Jes