kern/144898: [wpi] [panic] wpi panics system

[Dominic Fandrey]

The following reply was made to PR kern/144898; it has been noted by GNATS.

From: Dominic Fandrey <kamikaze at bsdforen.de>
To: jeff curry <jeff at degrind.org>
Cc: bug-followup at FreeBSD.org
Subject: Re: kern/144898: [wpi] [panic] wpi panics system
Date: Sun, 02 May 2010 21:55:02 +0200

 On 02/05/2010 21:45, jeff curry wrote:
 > This is happening to me as well, 8.0-release p2, amd64, 4 GB RAM, same
 > motherboard chipset and graphics card ( Dell D630 ).
 > 
 > wpi0: device timeout
 > wpi0: could not set power mode
 > wpi0: device config failed
 > 
 > kldunload -> kldload panics the system often but not always. wpi0 device
 > timeouts happen more often with X/gnome running. wireless will not work
 > after this until a reboot ( when kldload doesn't cause kernel panics )
 
 I have found a very reliable (as in 100%) way to panic the system.
 
 - Turn radio off (via hardware switch)
 - Load the driver and firmware
 - Turn radio on (via hardware switch)
 
 Voilà , instant panic.
 
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