#9633 NORM 1.5-F11: runlevel twiddling: another way to reproduce video hang (was: X hangs when started by telinit 5)

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#9633: runlevel twiddling: another way to reproduce video hang
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           Reporter:  wmb at firmworks.com  |       Owner:  dsd                              
               Type:  defect             |      Status:  new                              
           Priority:  normal             |   Milestone:  1.5-F11                          
          Component:  x window system    |     Version:  Development build as of this date
         Resolution:                     |    Keywords:                                   
        Next_action:  code               |    Verified:  0                                
Deployment_affected:                     |   Blockedby:                                   
           Blocking:                     |  
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Changes (by dsd):

  * component:  initscripts => x window system


Comment:

 Reproduced. I believe this is unrelated to bootanim. It is the regular X
 hang we are seeing (similar to when you drag a window to the left side of
 the screen in GNOME). especially given how the hangs are obviously when in
 the middle of redrawing stuff (never on idle)

 Nothing in the bootanim path should be able to cause a full-system lockup
 like this. At most it might manipulate the DCON but that would not result
 in the serial console dying.

 The bootanim change does not workaround the problem for me, I still see
 freezes this way, but they are harder to trigger. Probably the reason it
 makes a difference is because bootanim basically runs chvt, which is
 equivalent to your other workaround of "You can prevent the hang by
 switching to a different VT"

 nevertheless you're right, boot-anim-stop should run in runlevels 3 and 4
 too, so I'll fix that for the next build

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Ticket URL: <http://dev.laptop.org/ticket/9633#comment:6>
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