#12680 NORM 13.2.0: sudo hangs after mwifiex_cmd_timeout_func

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#12680: sudo hangs after mwifiex_cmd_timeout_func
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 Reporter:  rsmith        |                 Owner:               
     Type:  defect        |                Status:  new          
 Priority:  normal        |             Milestone:  13.2.0       
Component:  not assigned  |               Version:  not specified
 Keywords:                |           Next_action:  never set    
 Verified:  0             |   Deployment_affected:               
Blockedby:                |              Blocking:               
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 Occasionally I notice in my testbed that sudo hangs the console.  My test
 scripts have many instances of sudo in them and will stop.  When this
 happens the shell that is running the command is totally hung (VT or sugar
 terminal).  You can't ctrl-c and you can't kill it.  You can however start
 up another shell and use the machine.  Just don't try to run sudo again or
 it hangs.

 I've been noticing this since 13.1.x but previously there was almost no
 indication of what was wrong (nothing in dmesg or system logs).  An strace
 of sudo showed that it was hanging when it was trying to do some netlink
 type stuff.

 In 13.2.x (build 5) however this now seems to be associated with a mwifiex
 error.  In the cases I've seen sudo hang a dmesg always shows a prvious
 timeout error in the mwifiex driver.  I've attached the dmesg from a unit
 I found today.

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Ticket URL: <http://dev.laptop.org/ticket/12680>
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