Re: [Chicken-janitors] #892: Segfault on insanely long lists

[Chicken Trac]

#892: Segfault on insanely long lists
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  Reporter:  sjamaan   |       Owner:                   
      Type:  defect    |      Status:  new              
  Priority:  critical  |   Milestone:  4.9.0            
 Component:  unknown   |     Version:  4.7.x            
Resolution:            |    Keywords:  segfaults are fun
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Comment(by sjamaan):

 This turns out to be due to a GC which causes the heap to get resized to
 the maximum heap size, but the data that gets copied fitting the new heap.
 Then, when the heap gets "resized" again, it is already at the maximum
 size so C_rereclaim2 simply returns instead of finishing its job.  This
 causes massive breakage.

 The proper fix seems to be to keep going if the heap can't be resized, and
 letting the normal "heap full while resizing" error handling get
 triggered. This is the normal path which happens when the heap gets
 resized up to the maximum size, and the data doesn't fit. Patch(es) sent
 to chicken-hackers.

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Ticket URL: <http://bugs.call-cc.org/ticket/892#comment:5>
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