[Trac #1138] iwlist command failure.

[Zarro Boogs per Child]

#1138: iwlist command failure.
--------------------------------+-------------------------------------------
 Reporter:  swagle at marvell.com  |        Owner:  marcelo
     Type:  defect              |       Status:  new    
 Priority:  blocker             |    Milestone:  Trial-1
Component:  wireless            |   Resolution:         
 Keywords:                      |  
--------------------------------+-------------------------------------------
Changes (by jcardona):

 * cc: dcbw, mbletsas (added)
  * owner:  rchokshi => marcelo
  * priority:  high => blocker

Comment:

 '''Environment'''

 {{{
 Linux mshy8 2.6.21-20070322.9.olpc.0735c6bbf4c7f4e #1 PREEMPT Thu Mar 22
 15:10:03 EDT 2007 i586 i586 i386 GNU/Linux
 }}}
 {{{
 FW (5.220.10.p2, md5 0c97b8238433e6946333cd1ea69355b7
 }}}

 '''Description'''
 We have seen this immediately after a reboot.  There seems to be no
 communication with the firmware:  {{{iwconfig, iwlist, ethtool -i}}}, all
 block and return no output.  {{{^C}}} will successfully cancel the
 command.

 Trying to unload the {{{usb8xxx}}} module produces an oops.  This seems to
 be solved already in git ( commit 1dce5e85bdd5c2efecae9b8682d7baf7dc967d0e
 ).

 The problem remains after a warm reboot.  Rebooted three times, and the
 problem did not go away.

 Added {{{options libertas libertas_debug=1}}} to
 {{{/etc/modprobe.d/modprobe.conf}}} and rebooted a 4th time.  Problem
 problem still there, no debug info from the driver on
 {{{/var/log/messages}}}.  Edited /etc/syslog.conf

 {{{
 - *.info;mail.none;authpriv.none;cron.none
 /var/log/messages
 + *.info;mail.none;authpriv.none;cron.none;kern.*
 /var/log/messages
 }}}

 Restarted syslog

 {{{
 /etc/rc.d/init.d/syslog restart
 }}}

 Still no debug messages from the driver.

 Not much more that I can do remotely.  Rebooted a few times, one of them
 it all seemed to work for a while.

 One more data point:  this problem is very easy to reproduce in meshy8,
 and has not occurred yet in meshy3.  Both machines have with same kernel
 and wireless firmware (see '''Environment''' above).

-- 
Ticket URL: <http://dev.laptop.org/ticket/1138#comment:2>
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