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Re: Crash Report
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Re: Crash Report


  • Subject: Re: Crash Report
  • From: David A Rowland <email@hidden>
  • Date: Thu, 1 Jun 2006 11:48:15 -0700

At 4:39 PM +0100 6/1/06, Quinn wrote:
At 16:10 +0200 2/6/06, Dalton Hamilton wrote:
Does the below snippet of the Crash Report mean that the app crashed on line 1586 of the method [MyAppIVC mountIndex:DisplayMessages:] ??

No, it means that you crashed at offset 1586 into that routine.


Please pardon me if the following comments are too elementary.

Crashing is almost always the result of dereferencing (reading or writing through) an invalid pointer.The possiblities are:


pointer is 0 (legitimate at the end of a list but fatal to dereference)

pointer is uninitialized and thus random (a good candidate for intermittent failures)

pointer has been stepped on by a bad write through another pointer (also can be intermittent)

an array bound has been exceeded (data is damaged, and if the data is a pointer then there may be a failure down the line. Or the reference is far enough from the array as to be beyond legal memory.)


A million other things could be wrong, but on modern hardsware there isn't much else that will produce a crash.



David


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  • Follow-Ups:
    • Re: Crash Report
      • From: Dominic Blais <email@hidden>
References: 
 >Crash Report (From: Dalton Hamilton <email@hidden>)
 >Re: Crash Report (From: Quinn <email@hidden>)

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