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Bug 229959 - iwl3945: crash/freeze, unpredictable behavior, when running /sbin/iwconfig wlan0 txpower on
Summary: iwl3945: crash/freeze, unpredictable behavior, when running /sbin/iwconfig wl...
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] Core system (show other bugs)
Hardware: AMD64 Linux
: High normal with 1 vote (vote)
Assignee: Mobile Herd (OBSOLETE)
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2008-06-28 23:09 UTC by Alex Zorach
Modified: 2010-05-26 18:29 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---


Attachments
Output from emerge --info (emerge.info,3.24 KB, text/plain)
2008-06-28 23:10 UTC, Alex Zorach
Details
Kernel Configuration (kernel-config,31.04 KB, text/plain)
2008-06-28 23:11 UTC, Alex Zorach
Details

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Description Alex Zorach 2008-06-28 23:09:24 UTC
I am experiencing this bug:

http://bugs.gentoo.org/show_bug.cgi?id=217992

And a workaround is given to run:

/sbin/iwconfig wlan0 txpower on

But when I run this command, my system exhibits unpredictable behavior.  One time, the screen faded to white and became unusable, but I was able to log on in a terminal and halt the system.  Other times I have tried to reproduce it, the system has either crashed/locked up outright, or has become unstable and crashed shortly thereafter.  I suspect this may be a kernel bug because of the crashing, but I really have no clue.

Reproducible: Always

Steps to Reproduce:
1. Stop wireless: /etc/init.d/net.wlan0 stop
2. Try to restart wireless: /etc/init.d/net.wlan0 start, this generates an error message.
3. Run /sbin/iwconfig wlan0 txpower on

Actual Results:  
Different things happen each time.  Most common experience is a crash.

Expected Results:  
It should have turned on the power for the wireless card, without any weird and unpredictable system behavior or crashes, and then allowed me to start the wireless service again.

2.6.24-gentoo-r8 #5 SMP Thu May 29 08:53:16 PDT 2008 x86_64 Intel(R) Core(TM)2 Duo CPU T7500 @ 2.20GHz GenuineIntel GNU/Linux

net-wireless/wireless-tools-29

I'm a bit scared to try to keep replicating this bug because I'm worried something might happen to b0rk my system.
Comment 1 Alex Zorach 2008-06-28 23:10:20 UTC
Created attachment 158823 [details]
Output from emerge --info
Comment 2 Alex Zorach 2008-06-28 23:11:07 UTC
Created attachment 158825 [details]
Kernel Configuration
Comment 3 Carsten Lohrke (RETIRED) gentoo-dev 2008-06-29 16:48:43 UTC
More or less a dupe, but since bug 217992 is spammed by comments already...
Comment 4 Alex Zorach 2008-06-30 00:03:36 UTC
(In reply to comment #3)
> More or less a dupe, but since bug 217992 is spammed by comments already...
> 

Is this a dupe?  I mentioned this in the comments but it seems that bug is talking about a separate problem, and most of the people experiencing that bug aren't experiencing the one I've encountered.  I'm currently trying to figure out if this is a "real" bug or if I've done something un-kosher in my configuration of things.
Comment 5 Thilo Bangert (RETIRED) (RETIRED) gentoo-dev 2010-05-26 18:29:56 UTC
most likely this is not an issue anymore as recent kernels have much improved iwl3945 support.

please reopen if problem persists
thanks