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Re: another strange panic
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Re: another strange panic


  • Subject: Re: another strange panic
  • From: Godfrey van der Linden <email@hidden>
  • Date: Mon, 28 Feb 2005 22:06:18 -0800

Probably not a stack overflow. We have guard vm pages around all of our kernel stacks and if you try to walk of the end of them you will get a panic, unfortunately not usually terribly meaningful as you have just walked over the end of the stack and it can't find a valid frame for the backtrace to start.

Usually the PC is meaningful though.

Godfrey

On Feb 28, , at 15:31, Andrew Gallatin wrote:

We never unload the sound driver.   Just our own driver.

Hmm.. I wonder if we've got a bogus stack someplace caused by some
sort of stack overflow, and the garbage return address just happens to
match the address of this audio driver init routine..


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References: 
 >another strange panic (From: Andrew Gallatin <email@hidden>)
 >Re: another strange panic (From: Mark Cookson <email@hidden>)
 >Re: another strange panic (From: Andrew Gallatin <email@hidden>)

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