[Bugs] #2315 UNSP: Physics crash on shutdown

[Sugar Labs Bugs]

#2315: Physics crash on shutdown
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    Reporter:  carrott                    |          Owner:                             
        Type:  defect                     |         Status:  new                        
    Priority:  Unspecified by Maintainer  |      Milestone:  Unspecified by Release Team
   Component:  untriaged                  |        Version:  SoaS 3 (Mirabelle)         
    Severity:  Unspecified                |       Keywords:                             
Distribution:  Unspecified                |   Status_field:  Unconfirmed                
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 I started up sugar on a stick Mirabelle to test out a new branch of USB
 sticks. I fooled around with physics for a bit, stopped phyics and tried
 to shut it down. It refused to shutdown and acted rather strangely.
 Looking in the logs, I found mention of an abort.

 I have the abort and coredump, and attached is a backtrace from the core.
 If you want the core, I can attach too (it's about 4.5MB compressed).

 To get gdb I had to transfer the sugar on a stick into virtualbox using
 vboxmanage as my laptop's wireless is not supported. During the gdb and
 debuginfo installation process the guest locked up with 100% cpu usage in
 the host. I have a snapshot taken during this lockup time. On restarting
 the guest, I find that there is filesystem corruption. I cannot be 100%
 sure that the corruption stems from the crash and restart (sugar on a
 stick appears to be a linux filesystem on a vfat filesystem??) or from
 corruption on the usb stick (which might explain why it was behaving
 strangely in the first place).

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Ticket URL: <http://bugs.sugarlabs.org/ticket/2315>
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