#9581 NORM 1.5-sof: XO 1.5 Locks up-Requires Reboot

[Zarro Boogs per Child]

#9581: XO 1.5 Locks up-Requires Reboot
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           Reporter:  reuben        |       Owner:               
               Type:  defect        |      Status:  reopened     
           Priority:  normal        |   Milestone:  1.5-software 
          Component:  not assigned  |     Version:  not specified
         Resolution:                |    Keywords:               
        Next_action:  never set     |    Verified:  0            
Deployment_affected:                |   Blockedby:               
           Blocking:                |  
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Comment(by Quozl):

 Replying to [comment:12 mikus]:
 > one or two of these (in my mind "simple") operations will "freeze" for
 more than two seconds, then continue.

 Is it the response to keyboard characters that is delayed, or the return
 of the shell prompt?

 Can this freeze be avoided by typing "sync" first?  If so, the freeze is
 due to the slow SD write performance identified in another ticket.  The
 active writes prevent reads.

 > In my mind I had thought of "garbage collection" -- but perhaps this
 temporary freeze occurs because something happens to present the system
 with a stream of interrupts.

 Interrupts are counted; the kernel keeps the counters and displays them in
 /proc/interrupts.  Please reproduce this temporary freeze and identify
 whether the interrupt counts are unusual compared to when the freeze does
 not occur.

-- 
Ticket URL: <http://dev.laptop.org/ticket/9581#comment:13>
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